10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2012

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from            to            

Commission	Registrant; State of Incorporation;	IRS Employer
File Number	Address; and Telephone Number	Identification No.
1-9513	CMS ENERGY CORPORATION	38-2726431

(A Michigan Corporation)

One Energy Plaza, Jackson, Michigan 49201

(517) 788-0550

      1-5611 CONSUMERS ENERGY COMPANY 38-0442310

(A Michigan Corporation)

One Energy Plaza, Jackson, Michigan 49201

(517) 788-0550

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

CMS Energy Corporation:  Yes x    No ¨    Consumers Energy Company:  Yes x    No ¨

Indicate by check mark whether the Registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data file required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit and post such files).

CMS Energy Corporation:  Yes x    No ¨    Consumers Energy Company:  Yes x    No ¨

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

CMS Energy Corporation:

Large accelerated filer x    Accelerated filer ¨    Non-Accelerated filer ¨    Smaller reporting company ¨

(Do not check if a smaller reporting company)

Consumers Energy Company:

Large accelerated filer ¨    Accelerated filer ¨    Non-Accelerated filer x    Smaller reporting company ¨

(Do not check if a smaller reporting company)

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

CMS Energy Corporation:  Yes ¨    No x    Consumers Energy Company:  Yes ¨    No x

Indicate the number of shares outstanding of each of the issuer’s classes of common stock at July 13, 2012:

CMS Energy Corporation:

CMS Energy Common Stock, $0.01 par value
(including 1,296,406 shares owned by Consumers Energy Company)	264,986,880

Consumers Energy Company:

    Consumers Energy Common Stock, $10 par value, privately held by CMS Energy Corporation 84,108,789

CMS Energy Corporation

Consumers Energy Company

Quarterly Reports on Form 10-Q to the Securities and Exchange Commission for the Period Ended

June 30, 2012

TABLE OF CONTENTS

	Page
Glossary		5
Filing Format		10
Forward-Looking Statements and Information		10
Part I. Financial Information
Item 1. Consolidated Financial Statements (Unaudited)
CMS Energy Corporation		34
Consumers Energy Company		42
Notes to the Unaudited Consolidated Financial Statements		49
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations		13
Item 3. Quantitative and Qualitative Disclosures about Market Risk		77
Item 4. Controls and Procedures		77
Part II. Other Information
Item 1. Legal Proceedings		77
Item 1A. Risk Factors		77
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds		78
Item 3. Defaults Upon Senior Securities		78
Item 4. Mine Safety Disclosures		78
Item 5. Other Information		78
Item 6. Exhibits		79
Signatures		80

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GLOSSARY

Certain terms used in the text and financial statements are defined below.

2008 Energy Law	Comprehensive energy reform package enacted in Michigan in October 2008
2011 Form 10-K	Each of CMS Energy’s and Consumers’ Annual Report on Form 10-K for the year ended December 31, 2011
ABATE	Association of Businesses Advocating Tariff Equity
ASU	Financial Accounting Standards Board Accounting Standards Update
Bay Harbor	A residential/commercial real estate area located near Petoskey, Michigan, in which CMS Energy sold its interest in 2002
bcf	Billion cubic feet of gas
Big Rock	Big Rock Point nuclear power plant, formerly owned by Consumers
CAIR	The Clean Air Interstate Rule
Cantera Gas Company	Cantera Gas Company LLC, a non-affiliated company, formerly known as CMS Field Services
Cantera Natural Gas, Inc.	Cantera Natural Gas, Inc., a non-affiliated company that purchased CMS Field Services
CCB	Coal combustion by-product
CEO	Chief Executive Officer
CFO	Chief Financial Officer
CKD	Cement kiln dust
Clean Air Act	Federal Clean Air Act, as amended
Clean Water Act	Federal Water Pollution Control Act, as amended
CMS Capital	CMS Capital, L.L.C., a wholly owned subsidiary of CMS Energy
CMS Energy	CMS Energy Corporation, the parent of Consumers and CMS Enterprises
CMS Enterprises	CMS Enterprises Company, a wholly owned subsidiary of CMS Energy
CMS ERM	CMS Energy Resource Management Company, formerly CMS MST, a wholly owned subsidiary of CMS Enterprises

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CMS Field Services	CMS Field Services, Inc., a former wholly owned subsidiary of CMS Gas Transmission
CMS Gas Transmission	CMS Gas Transmission Company, a wholly owned subsidiary of CMS Enterprises
CMS Land	CMS Land Company, a wholly owned subsidiary of CMS Capital
CMS MST	CMS Marketing, Services and Trading Company, a wholly owned subsidiary of CMS Enterprises, whose name was changed to CMS ERM effective January 2004
Consumers	Consumers Energy Company, a wholly owned subsidiary of CMS Energy
CSAPR	The Cross-State Air Pollution Rule, which would supersede the EPA’s proposed Clean Air Transport Rule and replace CAIR, was finalized in July 2011 and was stayed in December 2011 pending judicial review
Customer Choice Act	Customer Choice and Electricity Reliability Act, a Michigan statute
D.C.	District of Columbia
Detroit Edison	The Detroit Edison Company, a non-affiliated company
Dodd-Frank Act	Dodd-Frank Wall Street Reform and Consumer Protection Act, enacted in 2010
DOE	U.S. Department of Energy
DOJ	U.S. Department of Justice
EBITDA	Earnings before interest, taxes, depreciation, and amortization
EnerBank	EnerBank USA, a wholly owned subsidiary of CMS Capital
Entergy	Entergy Corporation, a non-affiliated company
EPA	U.S. Environmental Protection Agency
EPS	Earnings per share
Exchange Act	Securities Exchange Act of 1934, as amended
FDIC	Federal Deposit Insurance Corporation
FERC	The Federal Energy Regulatory Commission
FLI Liquidating Trust	Trust formed in Missouri bankruptcy court to accomplish the liquidation of Farmland Industries, Inc., a non-affiliated entity

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FMB	First mortgage bond
FOV	Finding of Violation
FTR	Financial transmission right
GAAP	U.S. Generally Accepted Accounting Principles
GCR	Gas cost recovery
ISFSI	Independent spent fuel storage installation
kWh	Kilowatt-hour, a unit of energy equal to one thousand watt-hours
LIBOR	The London Interbank Offered Rate
Ludington	Ludington pumped-storage plant, jointly owned by Consumers and Detroit Edison
MACT	Maximum Achievable Control Technology, which is the emission control that is achieved in practice by the best-controlled similar source; for existing sources, MACT is the average emission limitation achieved by the best performing 12 percent of existing sources or the average limitation achieved by the best performing five sources, depending on the number of sources in the category
MATS	Mercury and Air Toxic Standards, which limit mercury, acid gases, and other toxic pollution from coal-fueled and oil-fueled power plants
MCIT	Michigan Corporate Income Tax
MD&A	Management’s Discussion and Analysis of Financial Condition and Results of Operations
MDEQ	Michigan Department of Environmental Quality
MDL	A pending multi-district litigation case in Nevada
MGP	Manufactured gas plant
Midwest Energy Market	An energy market developed by MISO to provide day-ahead and real-time market information and centralized dispatch for market participants
MISO	The Midwest Independent Transmission System Operator, Inc.

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mothball	To place a generating unit into a state of extended reserve shutdown in which the unit is inactive and unavailable for service for a specified period, during which the unit can be brought back into service after receiving appropriate notification and completing any necessary maintenance or other work; generation owners in MISO must request approval to mothball a unit, and MISO then evaluates the request for reliability impacts
MPSC	Michigan Public Service Commission
MW	Megawatt, a unit of power equal to one million watts
MWh	Megawatt-hour, a unit of energy equal to one million watt-hours
NOV	Notice of Violation
NPDES	National Pollutant Discharge Elimination System, a permit system for regulating point sources of pollution under the Clean Water Act
NREPA	Part 201 of Michigan Natural Resources and Environmental Protection Act, a statute that covers environmental activities including remediation
NSR	New Source Review, a construction-permitting program under the Clean Air Act
NYMEX	The New York Mercantile Exchange
OPEB	Postretirement benefit plans other than pensions
Palisades	Palisades nuclear power plant, sold by Consumers to Entergy in 2007
Panhandle	Panhandle Eastern Pipe Line Company, including its wholly owned subsidiaries Trunkline Gas Company, LLC, Pan Gas Storage Company, Panhandle Storage Company, and Panhandle Holding Company, a former wholly owned subsidiary of CMS Gas Transmission
PCB	Polychlorinated biphenyl
Pension Plan	Trusteed, non-contributory, defined benefit pension plan of CMS Energy, Consumers, and Panhandle
PSCR	Power supply cost recovery
PSD	Prevention of Significant Deterioration
REC	Renewable energy credit established under the 2008 Energy Law
Renewable Operating Permit	Michigan’s Title V permitting program under the Clean Air Act
RMRR	Routine maintenance, repair, and replacement

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ROA	Retail Open Access, which allows electric generation customers to choose alternative electric suppliers pursuant to the Customer Choice Act
SEC	U.S. Securities and Exchange Commission
SERP	Supplemental Executive Retirement Plan
Sherman Act	Sherman Antitrust Act, enacted in 1890
Smart Grid	Consumers’ grid modernization project, which includes the installation of smart meters that transmit and receive data, a two-way communications network, and modifications to Consumers’ existing information technology system to manage the data and enable changes to key business processes
Superfund	Comprehensive Environmental Response, Compensation, and Liability Act
Supplemental Environmental Projects	Environmentally beneficial projects that a party agrees to undertake as part of the settlement of an enforcement action, but which the party is not otherwise legally required to perform
Title V	A federal program under the Clean Air Act designed to standardize air quality permits and the permitting process for major sources of emissions across the U.S.
Trust Preferred Securities	Securities representing an undivided beneficial interest in the assets of statutory business trusts, the interests of which have a preference with respect to certain trust distributions over the interests of either CMS Energy or Consumers, as applicable, as owner of the common beneficial interests of the trusts
U.S.	United States
XBRL	eXtensible Business Reporting Language

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FILING FORMAT

This combined Form 10-Q is separately filed by CMS Energy and Consumers. Information in this combined Form 10-Q relating to each individual registrant is filed by such registrant on its own behalf. Consumers makes no representation regarding information relating to any other companies affiliated with CMS Energy other than its own subsidiaries. None of CMS Energy, CMS Enterprises, nor any of CMS Energy’s other subsidiaries (other than Consumers) has any obligation in respect of Consumers’ debt securities and holders of such debt securities should not consider the financial resources or results of operations of CMS Energy, CMS Enterprises, nor any of CMS Energy’s other subsidiaries (other than Consumers and its own subsidiaries (in relevant circumstances)) in making a decision with respect to Consumers’ debt securities. Similarly, none of Consumers nor any other subsidiary of CMS Energy has any obligation in respect of debt securities of CMS Energy.

This report should be read in its entirety. No one section of this report deals with all aspects of the subject matter of this report. This report should be read in conjunction with the consolidated financial statements and related notes and with MD&A included in the 2011 Form 10-K.

FORWARD-LOOKING STATEMENTS AND INFORMATION

This Form 10-Q and other written and oral statements that CMS Energy and Consumers make may contain forward-looking statements as defined by the Private Securities Litigation Reform Act of 1995. The use of “might,” “may,” “could,” “should,” “anticipates,” “believes,” “estimates,” “expects,” “intends,” “plans,” “projects,” “forecasts,” “predicts,” “assumes,” and other similar words is intended to identify forward-looking statements that involve risk and uncertainty. This discussion of potential risks and uncertainties is designed to highlight important factors that may impact CMS Energy’s and Consumers’ businesses and financial outlook. CMS Energy and Consumers have no obligation to update or revise forward-looking statements regardless of whether new information, future events, or any other factors affect the information contained in the statements. These forward-looking statements are subject to various factors that could cause CMS Energy’s and Consumers’ actual results to differ materially from the results anticipated in these statements. These factors include, but are not limited to, the following, all of which are potentially significant:

• the impact of regulation by the MPSC or FERC and other applicable governmental proceedings and regulations, including any associated impact on electric or gas rates or rate structures;

• potentially adverse regulatory treatment or failure to receive timely regulatory orders affecting Consumers that are or could come before the MPSC, FERC, or other governmental authorities, including the treatment of Consumers’ pilot gas revenue decoupling mechanism;

• the adoption of federal or state laws or regulations or changes in applicable laws, rules, regulations, principles, or practices, or in their interpretation, including those related to energy policy, the environment, regulation, health care reforms, taxes, accounting matters, and other business issues that could have an impact on CMS Energy’s or Consumers’ businesses or financial results, including laws or regulations regarding climate change and air emissions and potential effects of the Dodd-Frank Act and related regulations on CMS Energy, Consumers, or any of their affiliates;

• potentially adverse regulatory or legal interpretations or decisions regarding environmental matters, or delayed regulatory treatment or permitting decisions that are or could come before the MDEQ and/or EPA, and potential environmental remediation costs associated with these interpretations or decisions, including those that may affect Bay Harbor or Consumers’ RMRR classification under NSR regulations;

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• changes in energy markets, including availability and price of electric capacity and the timing and extent of changes in commodity prices and availability of coal, natural gas, natural gas liquids, electricity, oil, and certain related products;

• the price of CMS Energy common stock, the credit ratings of CMS Energy and Consumers, capital and financial market conditions, and the effect of these market conditions on CMS Energy’s and Consumers’ interest costs and access to the capital markets, including availability of financing to CMS Energy, Consumers, or any of their affiliates;

• the investment performance of the assets of CMS Energy’s and Consumers’ pension and benefit plans and the discount rates applicable to their plan obligations, and the resulting impact on future funding requirements;

• the impact of the economy, particularly in Michigan, and potential future volatility in the financial and credit markets on CMS Energy’s, Consumers’, or any of their affiliates’ revenues, ability to collect accounts receivable from customers, or cost and availability of capital;

• changes in the economic and financial viability of CMS Energy’s and Consumers’ suppliers, customers, and other counterparties and the continued ability of these third parties, including third parties in bankruptcy, to meet their obligations to CMS Energy and Consumers;

• population changes in the geographic areas where CMS Energy and Consumers conduct business;

• national, regional, and local economic, competitive, and regulatory policies, conditions, and developments;

• loss of customer demand for electric generation supply to alternative energy suppliers;

• federal regulation of electric sales and transmission of electricity, including periodic re-examination by federal regulators of CMS Energy’s and Consumers’ market-based sales authorizations in wholesale power markets without price restrictions;

• the impact of credit markets, economic conditions, and any new banking regulations on EnerBank;

• the availability, cost, coverage, and terms of insurance, the stability of insurance providers, and the ability of Consumers to recover the costs of any insurance from customers;

• the effectiveness of CMS Energy’s and Consumers’ risk management policies, procedures, and strategies, including their strategies to hedge risk related to future prices of electricity, natural gas, and other energy-related commodities;

• factors affecting development of generation projects and distribution infrastructure replacement and expansion projects, including those related to project site identification, construction material pricing, availability of qualified construction personnel, permitting, and government approvals;

• factors affecting operations, such as costs and availability of personnel, equipment, and materials, unusual weather conditions, catastrophic weather-related damage, scheduled or unscheduled equipment outages, maintenance or repairs, environmental incidents, and electric transmission and distribution or gas pipeline system constraints;

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• potential disruption to, interruption of, or other impacts on facilities, utility infrastructure, or operations due to accidents, explosions, physical disasters, war, or terrorism, and the ability to obtain or maintain insurance coverage for these events;

• changes or disruption in fuel supply, including but not limited to rail or vessel transport of coal and pipeline transport of natural gas;

• potential costs, lost revenues, or other consequences resulting from misappropriation of assets or sensitive information, corruption of data, or operational disruption in connection with a cyber attack or other cyber incident;

• technological developments in energy production, delivery, usage, and storage;

• the impact of CMS Energy’s and Consumers’ integrated business software system and its operation on their activities, including utility customer billing and collections;

• adverse consequences resulting from any past or future assertion of indemnity or warranty claims associated with assets and businesses previously owned by CMS Energy or Consumers, including claims resulting from attempts by foreign or domestic governments to assess taxes on past operations or transactions;

• the outcome, cost, and other effects of legal or administrative proceedings, settlements, investigations, or claims;

• restrictions imposed by various financing arrangements and regulatory requirements on the ability of Consumers and other subsidiaries of CMS Energy to transfer funds to CMS Energy in the form of cash dividends, loans, or advances;

• earnings volatility resulting from the application of fair value accounting to certain energy commodity contracts, such as electricity sales agreements and interest rate and foreign currency contracts;

• changes in financial or regulatory accounting principles or policies, including a possible future requirement to comply with International Financial Reporting Standards, which differ from GAAP in various ways, including the present lack of special accounting treatment for regulated activities; and

• other matters that may be disclosed from time to time in CMS Energy’s and Consumers’ SEC filings, or in other publicly issued documents.

For additional details regarding these and other uncertainties, see Part I – Item 1. Consolidated Financial Statements (Unaudited) – Notes to the Unaudited Consolidated Financial Statements – Note 3: Contingencies and Commitments and Note 4: Regulatory Matters; Part I – Item 2. MD&A – Outlook; and Part II – Item 1A. Risk Factors.

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CMS Energy Corporation

Consumers Energy Company

MANAGEMENT’S DISCUSSION AND ANALYSIS

OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

This MD&A is a combined report of CMS Energy and Consumers.

EXECUTIVE OVERVIEW

CMS Energy is an energy company operating primarily in Michigan. It is the parent holding company of several subsidiaries, including Consumers, an electric and gas utility, and CMS Enterprises, primarily a domestic independent power producer. Consumers’ electric utility operations include the generation, purchase, distribution, and sale of electricity, and Consumers’ gas utility operations include the purchase, transmission, storage, distribution, and sale of natural gas. Consumers’ customer base consists of a mix of residential, commercial, and diversified industrial customers. CMS Enterprises, through its subsidiaries and equity investments, owns and operates power generation facilities.

CMS Energy and Consumers manage their businesses by the nature of services each provides. CMS Energy operates principally in three business segments: electric utility; gas utility; and enterprises, its non-utility investments and operations. Consumers operates principally in two business segments: electric utility and gas utility.

CMS Energy and Consumers earn revenue and generate cash from operations by providing electric and natural gas utility services; electric distribution and generation; gas transmission, storage, and distribution; and other energy-related services. Their businesses are affected primarily by:

• regulation and regulatory matters;

• economic conditions;

• weather;

• energy commodity prices;

• interest rates; and

• CMS Energy’s and Consumers’ securities’ credit ratings.

CMS Energy’s business strategy has emphasized the key elements depicted below:

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SAFE, EXCELLENT OPERATIONS

The safety of employees, customers, and the general public remains a priority of CMS Energy and Consumers. Accordingly, CMS Energy and Consumers have worked to integrate a set of safety principles into their business operations and culture. These principles include complying with applicable safety, health, and security regulations and implementing programs and processes aimed at continually improving safety and security conditions. From 2007 to 2011, Consumers achieved a 73 percent reduction in the annual number of recordable safety incidents.

CUSTOMER VALUE

Consumers is undertaking a number of initiatives that reflect its intensified customer focus. Consumers’ planned investments in reliability are aimed at improving safety, reducing customer outage frequency, reducing repetitive outages, and increasing customer satisfaction. Consumers considers these and other aspects of its customer value initiative to be important to its success.

UTILITY INVESTMENT

Consumers expects to make capital investments of $6.6 billion from 2012 through 2016. Consumers has limited its capital investment program to those investments it believes are needed to provide safe, reliable, and efficient service to its customers. Consumers’ capital investment program is expected to result in annual rate base growth of five to seven percent while allowing Consumers to maintain sustainable customer base rate increases (excluding PSCR and GCR charges) at or below the rate of inflation.

Among the key components of Consumers’ investment program are projects that will enhance customer value. Consumers’ planned distribution investments of $1.7 billion comprise $1.0 billion of electric utility projects to improve reliability and increase capacity and $0.7 billion of gas utility projects to increase capacity and deliverability and enhance pipeline integrity. Consumers also expects to spend $1.5 billion on environmental investments needed to comply with state and federal laws and regulations. An additional $1.2 billion of planned reliability investments at Consumers are aimed at reducing outages and improving customer satisfaction; these investments comprise $0.8 billion at the electric utility to strengthen circuits and substations, replace poles, and upgrade the Ludington pumped-storage plant, and $0.4 billion at the gas utility to replace mains and enhance transmission and storage systems.

Renewable energy projects are another major component of Consumers’ planned capital investments. Consumers expects to spend $0.5 billion on renewable energy investments, under an MPSC-approved renewable energy plan, from 2012 through 2016. The 2008 Energy Law requires that at least ten percent of Consumers’ electric sales volume come from renewable energy sources by 2015, and it includes requirements for specific capacity additions. Consumers has historically included renewable resources as part of its portfolio, with about five percent of its present power supply coming from such renewable sources as hydroelectric, landfill gas, biomass, and wind.

Consumers’ Smart Grid program, with an estimated total project capital cost of $750 million, also represents a major capital investment. The full-scale deployment of advanced metering infrastructure is planned to begin in the second half of 2012 and to continue through 2019. Consumers has spent $140 million through 2011 on its Smart Grid program, and expects to spend an additional $260 million, following a phased approach, from 2012 through 2016.

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REGULATION

Regulatory matters are a key aspect of CMS Energy’s and Consumers’ businesses, particularly Consumers’ rate cases and regulatory proceedings before the MPSC. Important regulatory events and developments are summarized below.

• Electric Rate Case: In June 2011, Consumers filed a general electric rate case seeking an annual rate increase of $195 million, based on a 10.7 percent authorized return on equity. Consumers self-implemented an annual rate increase of $118 million in December 2011, subject to refund with interest. In June 2012, the MPSC authorized an annual rate increase of $118 million, based on a 10.3 percent return on equity.

• Gas Rate Case: In September 2011, Consumers filed a general gas rate case seeking an annual rate increase of $49 million, based on a 10.7 percent authorized return on equity. Consumers self-implemented an annual rate increase of $23 million in March 2012, subject to refund with interest. In June 2012, the MPSC approved Consumers’ settlement agreement and authorized an annual rate increase of $16 million, based on a 10.3 percent return on equity.

• Revenue Decoupling Mechanisms: Consumers has two electric revenue decoupling mechanism reconciliations pending with the MPSC, covering the period December 2009 through November 2011 and requesting, in total, recovery of $59 million.

In April 2012, the Michigan Court of Appeals ruled in an appeal filed by ABATE that disputed the MPSC’s decision to authorize an electric revenue decoupling mechanism for Detroit Edison. The Court concluded that the MPSC lacks statutory authority to approve or direct the use of a revenue decoupling mechanism for electric providers. Consumers cannot predict whether this decision will be appealed to the Michigan Supreme Court or the timing or outcome of any such appeal. As a result, Consumers determined that it no longer met the accounting criteria for recognition of a regulatory asset under an alternative revenue program, and wrote off its $59 million electric revenue decoupling mechanism regulatory asset at March 31, 2012. Although the case before the Court of Appeals related specifically to Detroit Edison, Consumers will continue to pursue all of its legal and regulatory avenues to recover its decoupling revenues.

As a result of the Court of Appeals decision in the Detroit Edison case, the MPSC requested all interested parties to submit comments regarding the future use of electric revenue decoupling mechanisms in Michigan. In May 2012, Consumers filed its comments with the MPSC. Consumers is unable to predict the outcome of this matter.

In September 2011, Consumers filed its first reconciliation of the gas revenue decoupling mechanism, requesting recovery of $16 million from customers for the period June 2010 through May 2011. This mechanism, which was extended through April 2012 and was not affected by the Court of Appeals decision on electric decoupling, allowed Consumers to adjust future gas rates to compensate for changes in sales volumes resulting from the difference between the level of average sales per customer adopted in the order and actual average weather-adjusted sales per customer, subject to certain conditions. Certain parties have filed in opposition to the reconciliation. At June 30, 2012, Consumers had a $33 million non-current regulatory asset recorded for gas revenue decoupling.

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• DOE Settlement: In July 2011, Consumers entered into an agreement with the DOE to settle for $120 million its claims related to the DOE’s failure to accept spent nuclear fuel. In September 2011, Consumers filed an application with the MPSC regarding the allocation of the $120 million settlement amount.

The 2008 Energy Law limits alternative electric supply to ten percent of Consumers’ weather-adjusted retail sales of the preceding calendar year. At June 30, 2012, Consumers’ electric deliveries under the ROA program were at the ten percent limit.

In March 2012, a bill was introduced to the Michigan Senate and House of Representatives that, upon enactment, would revise the 2008 Energy Law and allow customers then on the ROA program waiting list to switch their service to an alternative electric supplier. Presently, the proportion of Consumers’ electric deliveries under the ROA program and on the ROA waiting list is 23 percent. The revision also proposes an increase in the cap of six percentage points per year from 2013 through 2015.

In June 2012, a bill was introduced to the Michigan Senate and House of Representatives that would likely phase out electric choice and return the state’s electric industry to full regulation. This legislation was meant to counterpoint the bill introduced in March 2012. Consumers is unable to predict the outcome of these two legislative proposals.

In January 2012, a ballot initiative was filed proposing to amend the Michigan Constitution to require Michigan utilities to obtain at least 25 percent of their electric energy from clean renewable energy sources such as wind, solar, biomass, and hydropower by 2025. The proposed amendment would also limit how much utilities could charge customers for the cost of complying with this requirement. If this ballot initiative is certified by the State Board of Canvassers, Michigan voters will vote on the proposal in the November 2012 general election.

Environmental regulation is another area of importance for CMS Energy and Consumers, and they are monitoring numerous legislative and regulatory initiatives, including initiatives to regulate greenhouse gases, and related litigation.

In July 2011, the EPA finalized CSAPR, which replaces CAIR. In December 2011, due to litigation surrounding CSAPR, the U.S. Court of Appeals for the D.C. Circuit issued a stay of CSAPR, stating that CAIR would remain in place while the court considers the issues.

Additionally, in February 2012, the EPA published its final MACT emission standards for electric generating units, based on Section 112 of the Clean Air Act, calling the final rule MATS. Although numerous parties, including the State of Michigan, have sought to extend the deadline of MATS, it is expected to take effect in 2015. CMS Energy and Consumers are continuing to assess the impact and cost of complying with CSAPR and MATS.

FINANCIAL PERFORMANCE IN 2012 AND BEYOND

For the six months ended June 30, 2012, CMS Energy’s net income available to common stockholders was $167 million, and diluted EPS were $0.62. This compares with net income available to common stockholders of $235 million and diluted EPS of $0.90 for the six months ended June 30, 2011. The main factors contributing to the decline in earnings in 2012 were the write-off of Consumers’ electric revenue decoupling mechanism regulatory asset, as discussed above, and the absence of a tax benefit recognized in 2011 related to the enactment of the MCIT.

A more detailed discussion of the factors affecting CMS Energy’s and Consumers’ performance can be found in the Results of Operations section that follows this Executive Overview.

CMS Energy and Consumers believe that economic conditions in Michigan are improving. Although Michigan’s economy continues to be affected by the recession and its impact on the state’s automotive industry and by high unemployment rates, there are indications that the recession has eased in Michigan. Consumers expects its electric sales to increase by about one percent annually through 2016, driven largely by the continued rise in industrial production. Consumers is projecting that its gas sales will remain stable through 2016. This outlook reflects growth in gas demand offset by energy efficiency and conservation.

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As Consumers seeks to continue to receive fair and timely regulatory treatment, delivering customer value will remain a key strategic priority. To keep costs down for its utility customers, Consumers has set goals to achieve further annual productivity improvements. Additionally, Consumers will strive to give priority to capital investments that increase customer value or lower costs.

Consumers expects to continue to have sufficient capacity to fund its investment-based growth plans. CMS Energy also expects its sources of liquidity to remain sufficient to meet its cash requirements. CMS Energy and Consumers will continue to monitor developments in the financial and credit markets, as well as government policy responses to those developments, for potential implications for their businesses and their future financial needs.

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RESULTS OF OPERATIONS

CMS ENERGY CONSOLIDATED RESULTS OF OPERATIONS

In Millions, Except Per Share Amounts
	Three Months Ended									Six Months Ended
June 30	2012			2011			Change			2012			2011			Change
Net Income Available to Common Stockholders	$	100		$	100		$	-		$	167		$	235		$	(68	)
Basic Earnings Per Share	$	0.38		$	0.40		$	(0.02	)	$	0.64		$	0.94		$	(0.30	)
Diluted Earnings Per Share	$	0.37		$	0.38		$	(0.01	)	$	0.62		$	0.90		$	(0.28	)
In Millions
	Three Months Ended									Six Months Ended
June 30	2012			2011			Change			2012			2011			Change
Electric utility	$	111		$	85		$	26		$	132		$	150		$	(18	)
Gas utility		9			5			4			64			93			(29	)
Enterprises		(1	)		29			(30	)		4			32			(28	)
Corporate interest and other		(19	)		(19	)		-			(40	)		(42	)		2
Discontinued operations		-			-			-			7			2			5
Net Income Available to Common Stockholders	$	100		$	100		$	-		$	167		$	235		$	(68	)

Presented in the following table are specific after-tax changes to net income available to common stockholders for 2012 versus 2011:

In Millions
	June 30, 2012 better/(worse) than 2011
Reasons for the change	Three Months Ended						Six Months Ended
Gas sales	$	(5	)				$	(41	)
Electric sales		7						(13	)
Electric and gas rate orders		23						50
Recovery of development costs related to canceled coal-fueled plant		9						9
Distribution and service restoration cost		9						9
Other, including depreciation and property tax		(7	)	$	36			(18	)	$	(4	)
Subsidiary earnings of enterprises segment					(2	)					2
Lower corporate fixed charges, EnerBank earnings, and other					5						6
Charge to write off electric decoupling regulatory asset					-						(36	)
Absence of MCIT enactment in 2011					(32	)					(32	)
Other, mainly voluntary separation program cost					(7	)					(4	)
Total change				$	-					$	(68	)

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CONSUMERS ELECTRIC UTILITY RESULTS OF OPERATIONS

In Millions
June 30	2012		2011		Change
Net Income Available to Common Stockholders
Three months ended	$	111	$	85	$	26
Six months ended		132		150		(18	)

In Millions
	June 30, 2012 better/(worse) than 2011
Reasons for the change	Three Months Ended			Six Months Ended
Electric deliveries and rate increases		$        45			$        (12	)
Power supply costs and related revenue		2			2
Other income, net of expenses		(2	)		(2	)
Maintenance and other operating expenses		7			4
Depreciation and amortization		(7	)		(13	)
General taxes		3			2
Interest charges		3			4
Income taxes		(25	)		(3	)
Total change		$        26			$        (18	)

Electric deliveries and rate increases: For the three months ended June 30, 2012, electric delivery revenues increased $45 million compared with 2011. This variance was due to additional revenues of $25 million resulting from a December 2011 self-implemented rate increase and $26 million resulting from higher deliveries, reflecting warmer weather and increased usage in 2012. Additionally, other miscellaneous revenue increased $3 million. These increases were offset partially by the absence, in 2012, of $9 million of electric decoupling revenues recognized in 2011. Deliveries to end-use customers were 9.5 billion kWh in 2012, an increase of 0.6 billion kWh, or 6.7 percent, compared with 2011.

For the six months ended June 30, 2012, electric delivery revenues decreased $12 million compared with 2011. This decrease reflected a $59 million charge to write off Consumers’ electric decoupling mechanism regulatory asset, and the absence, in 2012, of $30 million of electric decoupling revenues recognized in 2011. These decreases were offset largely by additional revenues of $51 million resulting from a December 2011 self-implemented rate increase, $11 million resulting from higher deliveries in 2012, and a $15 million increase in surcharges and other miscellaneous revenues. Deliveries to end-use customers were 18.7 billion kWh in 2012, an increase of 0.4 billion kWh, or 2.2 percent, compared with 2011.

Maintenance and other operating expenses: For the three months ended June 30, 2012, maintenance and other operating expenses decreased $7 million compared with 2011. This decrease reflected the $14 million recovery of costs associated with Consumers’ proposed coal-fueled plant and a $7 million reduction in service restoration costs. These decreases were offset partially by $8 million of voluntary separation program expenses, $5 million of higher energy optimization program costs, and a $1 million increase in other operating expenses.

For the six months ended June 30, 2012, maintenance and other operating expenses decreased $4 million compared with 2011. This decrease reflected the $14 million recovery of costs associated with Consumers’ proposed coal-fueled plant and a $9 million reduction in service restoration costs. These decreases were offset partially by $8 million of voluntary separation program expenses, $9 million of higher energy optimization program costs, and a $2 million increase in other operating expenses.

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Depreciation and amortization: For the three months ended June 30, 2012, depreciation and amortization expense increased $7 million compared with 2011, and for the six months ended June 30, 2012, depreciation and amortization expense increased $13 million compared with 2011. These increases were due primarily to higher depreciation expense from increased plant in service.

Income taxes: For the three months ended June 30, 2012, income taxes increased $25 million compared with 2011, reflecting higher electric utility earnings in 2012.

CONSUMERS GAS UTILITY RESULTS OF OPERATIONS

In Millions
June 30	2012		2011		Change
Net Income Available to Common Stockholders
Three months ended	$	9	$	5	$	4
Six months ended		64		93		(29	)

In Millions
	June 30, 2012 better/(worse) than 2011
Reasons for the change	Three Months Ended			Six Months Ended
Gas deliveries and rate increases		$        3			$        (32	)
Other income, net of expenses		(1	)		(1	)
Maintenance and other operating expenses		1			(8	)
Depreciation and amortization		-			(5	)
General taxes		-			(1	)
Interest charges		2			3
Income taxes		(1	)		15
Total change		$        4			$        (29	)

Gas deliveries and rate increases: For the three months ended June 30, 2012, gas delivery revenues increased $3 million compared with 2011. This increase reflected $5 million in additional revenues from March 2012 and May 2011 rate increases and a $5 million increase in surcharges and other miscellaneous revenues. These increases were offset partially by a $7 million reduction resulting from lower customer deliveries, due primarily to warmer weather in 2012. Gas deliveries, including transportation to end-use customers, were 40 bcf in 2012, a decrease of 6 bcf, or 13 percent, compared with 2011.

For the six months ended June 30, 2012, gas delivery revenues decreased $32 million compared with 2011. This decrease reflected a $67 million reduction resulting from lower customer deliveries, due primarily to warmer weather in 2012. The decrease was offset partially by $19 million of additional revenues from March 2012 and May 2011 rate increases, an $8 million increase related to the energy optimization program, and an $8 million increase in other miscellaneous revenues. Gas deliveries, including transportation to end-use customers, were 146 bcf in 2012, a decrease of 33 bcf, or 18 percent, compared with 2011.

Maintenance and other operating expenses: For the six months ended June 30, 2012, maintenance and other operating expenses increased $8 million compared with 2011 due to $8 million of higher energy optimization program costs and $4 million of voluntary separation program expenses, offset partially by $4 million of lower gas distribution operating expenses.

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Depreciation and amortization: For the six months ended June 30, 2012, depreciation and amortization expense increased $5 million compared with 2011, due primarily to higher depreciation expense from increased plant in service.

Income taxes: For the six months ended June 30, 2012, income taxes decreased $15 million compared with 2011, reflecting lower gas utility earnings in 2012.

ENTERPRISES RESULTS OF OPERATIONS

In Millions
June 30	2012			2011		Change
Net Income (Loss) Available to Common Stockholders
Three months ended	$	(1	)	$	29	$	(30	)
Six months ended		4			32		(28	)

For the three months ended June 30, 2012, the enterprises segment recorded a net loss of $1 million, compared with net income of $29 million for the three months ended June 30, 2011, and for the six months ended June 30, 2012, net income of the enterprises segment decreased $28 million compared with 2011. These changes were due primarily to the absence, in 2012, of a $28 million income tax benefit resulting from the enactment of the MCIT in May 2011.

CORPORATE INTEREST AND OTHER RESULTS OF OPERATIONS

In Millions
June 30	2012			2011			Change
Net Loss Available to Common Stockholders
Three months ended		$      (19	)		$      (19	)		$          -
Six months ended		(40	)		(42	)		2

For the six months ended June 30, 2012, corporate interest and other net expenses decreased $2 million compared with 2011, due primarily to higher net earnings at EnerBank.

DISCONTINUED OPERATIONS

For each of the three-month periods ended June 30, 2012 and 2011, the net loss recorded from discontinued operations was less than $1 million.

For the six months ended June 30, 2012, income from discontinued operations was $7 million, reflecting the elimination of a liability related to a prior asset sale, compared with income from discontinued operations of $2 million in 2011 as a result of a favorable legal settlement related to a previously sold business.

CASH POSITION, INVESTING, AND FINANCING

At June 30, 2012, CMS Energy had $215 million of consolidated cash and cash equivalents, which included $28 million of restricted cash and cash equivalents. Consumers had $181 million of consolidated cash and cash equivalents, which included $27 million of restricted cash and cash equivalents.

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OPERATING ACTIVITIES

Presented in the following table are specific components of net cash provided by operating activities for the six months ended June 30, 2012 and 2011:

In Millions
Six Months Ended June 30	2012			2011			Change
CMS Energy, including Consumers
Net income	$	168		$	236		$	(68	)
Non-cash transactions1		533			480			53
		701			716			(15	)
Postretirement benefits contributions		(37	)		(39	)		2
Decrease in core working capital2		291			453			(162	)
Other changes in assets and liabilities, net		(12	)		86			(98	)
Net cash provided by operating activities	$	943		$	1,216		$	(273	)
Consumers
Net income	$	198		$	245		$	(47	)
Non-cash transactions1		461			473			(12	)
		659			718			(59	)
Postretirement benefits contributions		(34	)		(37	)		3
Decrease in core working capital2		294			451			(157	)
Other changes in assets and liabilities, net		94			113			(19	)
Net cash provided by operating activities	$	1,013		$	1,245		$	(232	)

¹ Non-cash transactions comprise depreciation and amortization, changes in deferred income taxes, postretirement benefits

expense, and other non-cash items.

² Core working capital comprises accounts receivable and accrued revenues, inventories, and accounts payable.

For the six months ended June 30, 2012, net cash provided by operating activities at CMS Energy decreased $273 million compared with 2011, and net cash provided by operating activities at Consumers decreased $232 million compared with 2011. The decreases were due primarily to lower gas sales and a smaller reduction in core working capital, reflecting lower usage of gas inventory.

INVESTING ACTIVITIES

Presented in the following table are specific components of net cash used in investing activities for the six months ended June 30, 2012 and 2011:

In Millions
Six Months Ended June 30	2012			2011			Change
CMS Energy, including Consumers
Capital expenditures	$	(575	)	$	(399	)	$	(176	)
Costs to retire property and other		(35	)		(72	)		37
Net cash used in investing activities	$	(610	)	$	(471	)	$	(139	)
Consumers
Capital expenditures	$	(572	)	$	(394	)	$	(178	)
Costs to retire property and other		(29	)		(51	)		22
Net cash used in investing activities	$	(601	)	$	(445	)	$	(156	)

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For the six months ended June 30, 2012, net cash used in investing activities at CMS Energy increased $139 million compared with 2011, and net cash used in investing activities at Consumers increased $156 million compared with 2011. The increases were due primarily to increases in capital expenditures.

FINANCING ACTIVITIES

Presented in the following table are specific components of net cash used in financing activities for the six months ended June 30, 2012 and 2011:

In Millions
Six Months Ended June 30	2012			2011			Change
CMS Energy, including Consumers
Issuance of FMBs, senior notes, and other debt	$	914		$	396		$	518
Retirement of debt and other debt maturity payments		(1,100	)		(292	)		(808	)
Common stock issued		23			22			1
Payments of common stock dividends		(125	)		(106	)		(19	)
Other financing activities		(19	)		(20	)		1
Net cash used in financing activities	$	(307	)	$	-		$	(307	)
Consumers
Issuance of FMBs	$	375		$	-		$	375
Retirement of debt and other debt maturity payments		(694	)		(18	)		(676	)
Payments of common stock dividends		(158	)		(196	)		38
Stockholder contribution from CMS Energy		150			125			25
Other financing activities		(16	)		(16	)		-
Net cash used in financing activities	$	(343	)	$	(105	)	$	(238	)

For the six months ended June 30, 2012, net cash used in financing activities at CMS Energy increased $307 million compared with 2011, and net cash used in financing activities at Consumers increased $238 million compared with 2011. These increases were due primarily to an increase in net debt retirements.

RETIREMENT BENEFITS

Presented in the following table are the most recent estimates of CMS Energy’s and Consumers’ pension cost, OPEB cost, and cash contributions through 2014:

In Millions
	Pension Cost		OPEB Cost		Pension Contribution		OPEB Contribution
CMS Energy, including Consumers
2012		$        103		$        75		$          -		$        65
2013		115		73		-		74
2014		112		90		111		73
Consumers
2012		$        100		$        77		$          -		$        64
2013		112		75		-		73
2014		109		92		108		72

Contribution estimates comprise amounts required for pension and discretionary contributions for OPEB. Consumers’ pension and OPEB costs are recoverable through its general ratemaking process. Actual future costs and contributions will depend on future investment performance, changes in discount rates, and various other factors related to the Pension Plan and OPEB participants.

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For additional details on retirement benefits, see Note 10: Retirement Benefits.

CAPITAL RESOURCES AND LIQUIDITY

CMS Energy uses dividends from its subsidiaries and external financing and capital transactions to invest in its utility and non-utility businesses, retire debt, pay dividends, and fund its other obligations. The ability of CMS Energy’s subsidiaries, including Consumers, to pay dividends to CMS Energy depends upon each subsidiary’s revenues, earnings, cash needs, and other factors. In addition, Consumers’ ability to pay dividends is restricted by certain terms included in its debt covenants and articles of incorporation, and potentially by provisions under the Federal Power Act and the Natural Gas Act and FERC requirements. For additional details on Consumers’ dividend restrictions, see Note 5: Financings and Capitalization – Dividend Restrictions. For the six months ended June 30, 2012, Consumers paid $158 million in dividends on common stock to CMS Energy.

In June 2011, CMS Energy entered into a continuous equity offering program under which CMS Energy may sell, from time to time in “at the market” offerings, common stock having an aggregate sales price of up to $50 million. In June 2012, under this program, CMS Energy issued 650,235 shares of common stock at an average price of $23.07 per share, resulting in net proceeds of $15 million. In June 2011, under this program, CMS Energy issued 762,925 shares of common stock at an average price of $19.66 per share, resulting in net proceeds of $15 million.

Consumers uses cash flows generated from operations and external financing transactions, as well as stockholder contributions from CMS Energy, to fund capital expenditures, retire debt, pay dividends, contribute to its employee benefit plans, and fund its other obligations.

CMS Energy’s and Consumers’ access to the financial and capital markets depends on their credit ratings and on market conditions. As evidenced by past financing transactions, CMS Energy and Consumers have had ready access to these markets and, barring major market dislocations or disruptions, they expect to continue to have such access. If access to these markets were to become diminished or otherwise restricted, however, CMS Energy and Consumers would implement contingency plans to address debt maturities, which could include reduced capital spending. CMS Energy and Consumers had the following secured revolving credit facilities available at June 30, 2012:

In Millions
	Amount of Facility		Amount Borrowed		Letters of Credit Outstanding		Amount Available		Expiration Date
CMS Energy
Revolving credit facility1		$    550		$      25		$        2		$     523		March 2016
Consumers
Revolving credit facility2		$    500		$        -		$        3		$     497		March 2016
Revolving credit facility2		150		-		-		150		April 2017
Revolving credit facility2		30		-		30		-		September 2014

¹ Obligations under this facility are secured by Consumers common stock.

² Obligations under this facility are secured by FMBs of Consumers.

CMS Energy and Consumers use these credit facilities for general working capital purposes and to issue letters of credit. An additional source of liquidity is Consumers’ revolving accounts receivable sales program, which allows it to transfer up to $250 million of accounts receivable as a secured borrowing. At June 30, 2012, $250 million of accounts receivable were eligible for transfer under this program.

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Certain of CMS Energy’s and Consumers’ credit agreements and debt indentures contain covenants that require CMS Energy and Consumers to maintain certain financial ratios, as defined therein. At June 30, 2012, no events of default had occurred with respect to any financial covenants contained in CMS Energy’s and Consumers’ credit agreements or debt indentures. CMS Energy and Consumers were each in compliance with these limits as of June 30, 2012, as presented in the following table:

Credit Agreement, Indenture, or Facility	Description		Limit			Ratio at June 30, 2012
CMS Energy
$550 million revolving credit agreement and $180 million term loan credit agreement		Debt to EBITDA		<	6.0 to 1.0		4.7 to 1.0
Senior notes indenture		Interest Coverage		>	1.6 to 1.0		3.8 to 1.0
$180 million term loan credit agreement		Interest Coverage		>	2.0 to 1.0		3.8 to 1.0
Consumers
$500 million, $150 million, and $30 million revolving credit agreements, $375 million term loan credit agreement, and $35 million and $68 million reimbursement agreements		Debt to Capital		<	0.65 to 1.0		0.46 to 1.0
$250 million accounts receivable purchase agreement		Debt to Capital		<	0.70 to 1.0		0.46 to 1.0

Components of CMS Energy’s and Consumers’ cash management plan include controlling operating expenses and capital expenditures and evaluating market conditions for financing and refinancing opportunities. CMS Energy and Consumers believe that their present level of cash and their expected cash flows from operating activities, together with their access to sources of liquidity, will be sufficient to fund their contractual obligations for 2012 and beyond.

OFF-BALANCE-SHEET ARRANGEMENTS

CMS Energy, Consumers, and certain of their subsidiaries also enter into various arrangements in the normal course of business to facilitate commercial transactions with third parties. These arrangements include indemnities, surety bonds, letters of credit, and financial and performance guarantees. Indemnities are usually agreements to reimburse a counterparty that may incur losses due to outside claims or breach of contract terms. The maximum payment that could be required under a number of these indemnity obligations is not estimable; the maximum obligation under indemnities for which such amounts were estimable was $512 million at June 30, 2012. While CMS Energy and Consumers believe it is unlikely that they will incur any material losses related to indemnities they have not recorded as liabilities, they cannot predict the impact of these contingent obligations on their liquidity and financial condition. For additional details on these and other guarantee arrangements, see Note 3: Contingencies and Commitments – Guarantees.

OUTLOOK

Several business trends and uncertainties may affect CMS Energy’s and Consumers’ financial condition and results of operations. These trends and uncertainties could have a material impact on CMS Energy’s and Consumers’ consolidated income, cash flows, or financial position. For additional details regarding these and other uncertainties, see Forward-Looking Statements and Information; Note 3: Contingencies and Commitments; and Part II – Item 1A. Risk Factors.

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CONSUMERS ELECTRIC UTILITY BUSINESS OUTLOOK AND UNCERTAINTIES

Balanced Energy Initiative: Consumers’ balanced energy initiative is a comprehensive energy resource plan designed to meet the short-term and long-term electricity needs of its customers through:

• energy efficiency;

• demand management;

• expanded use of renewable energy;

• development of new power plants;

• power or generating asset purchases to complement existing generating sources;

• continued operation or upgrade of existing units; and

• potential retirement or mothballing of older generating units.

In December 2011, Consumers formally canceled its plans to build an 830-MW coal-fueled plant at its Karn/Weadock generating complex. This decision reflects present and anticipated market conditions, new environmental standards, and Consumers’ expectations of the generation sources that will provide the best energy value to customers. Consumers also plans to mothball seven of its smaller coal-fueled units in 2015. Consumers will continue to evaluate its options for the plants, which include:

• installing more environmental equipment on the units to reduce emissions further in order to meet new environmental standards and continue to operate the units;

• converting the units to natural gas instead of coal;

• decommissioning the units; and

• a combination of these three options, depending on customer needs and market conditions.

Renewable Energy Plan: Consumers’ renewable energy plan details how Consumers will meet REC and capacity standards prescribed by the 2008 Energy Law. This law requires Consumers to obtain RECs in an amount equal to at least ten percent of its electric sales volume (estimated to be 3.5 million RECs annually) by 2015. RECs represent proof that the associated electricity was generated from a renewable energy resource. Under its renewable energy plan, Consumers expects to meet its renewable energy requirement each year with a combination of newly generated RECs and previously generated RECs carried over from prior years.

The 2008 Energy Law also requires Consumers to obtain 500 MW of capacity from renewable energy resources by 2015, either through generation resources owned by Consumers or through agreements to purchase capacity from other parties. To meet its renewable capacity requirements, Consumers expects to add more than 500 MW of owned or contracted renewable capacity by 2015. Through June 2012, Consumers has contracted for the purchase of 297 MW of nameplate capacity from renewable energy suppliers, which represents 59 percent of the 2015 renewable capacity requirement.

In November 2011, Consumers began construction of Lake Winds^® Energy Park, a 100-MW wind park in Mason County, Michigan. Consumers expects the wind park to be operational in late 2012. Consumers will continue development of Cross Winds^® Energy Park, its 150-MW wind park in Tuscola County, Michigan, scheduled for operation by late 2015, as well as seek other opportunities for wind generation development in support of the renewable capacity standards. Consumers expects to meet its 2015 renewable capacity requirement with a combination of owned and contracted renewable capacity.

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In January 2012, a ballot initiative was filed proposing to amend the Michigan Constitution to require Michigan utilities to obtain at least 25 percent of their electric energy from clean renewable energy sources such as wind, solar, biomass, and hydropower by 2025. The proposed amendment would also limit how much utilities could charge customers for the cost of complying with this requirement. If this ballot initiative is certified by the State Board of Canvassers, Michigan voters will vote on the proposal in the November 2012 general election.

Electric Customer Deliveries and Revenue: Consumers’ electric customer deliveries are largely dependent on Michigan’s economy, which has suffered from economic and financial instability in the automotive and real estate sectors. Consumers believes economic conditions in Michigan are improving, and expects weather-adjusted electric deliveries to increase in 2012 by two percent compared with 2011.

Consumers expects average electric delivery growth of about one percent annually over the next five years. This increase reflects growth in electric demand, offset partially by the predicted effects of energy efficiency programs and appliance efficiency standards. Actual deliveries will depend on:

• energy conservation measures and results of energy efficiency programs;

• fluctuations in weather; and

• changes in economic conditions, including utilization, expansion, or contraction of manufacturing facilities, population trends, and housing activity.

Electric ROA: The Customer Choice Act allows all of Consumers’ electric customers to buy electric generation service from Consumers or from an alternative electric supplier. The 2008 Energy Law revised the Customer Choice Act by limiting alternative electric supply to ten percent of Consumers’ weather-adjusted retail sales of the preceding calendar year. At June 30, 2012, electric deliveries under the ROA program were at the ten percent limit and alternative electric suppliers were providing 787 MW of generation service to ROA customers. Based on 2011 weather-adjusted retail sales, Consumers expects 2012 electric deliveries under the ROA program to be at a similar level to 2011.

In March 2012, a bill was introduced to the Michigan Senate and House of Representatives that, upon enactment, would revise the 2008 Energy Law and allow customers then on the ROA program waiting list to switch their service to an alternative electric supplier. Presently, the proportion of Consumers’ electric deliveries under the ROA program and on the ROA waiting list is 23 percent. The revision also proposes an increase in the cap of six percentage points per year from 2013 through 2015.

In June 2012, a bill was introduced to the Michigan Senate and House of Representatives that would likely phase out electric choice and return the state’s electric industry to full regulation. This legislation was meant to counterpoint the bill introduced in March 2012. Consumers is unable to predict the outcome of these two legislative proposals.

Electric Transmission: In July 2011, FERC issued an order in a rulemaking proceeding concerning regional electric transmission planning and cost allocations. In August 2011, Consumers and several other electric utilities filed a joint petition seeking clarification/rehearing of FERC’s July order and opposing the allocation methodology. In May 2012, FERC issued an order denying the utilities’ clarification/rehearing requests on this order. Following this denial, Consumers and several other electric utilities filed a petition for review of FERC’s order with the U. S. Court of Appeals.

In a related matter, in 2010, MISO filed and FERC approved a tariff revision proposing a cost allocation methodology for a new category of transmission projects. Under this tariff revision, the cost of these new transmission projects will be spread proportionally across the Midwest Energy Market. Consumers believes that Michigan customers will bear additional costs under MISO’s tariff without receiving comparable benefits from these projects. In December 2011, Consumers, along with the Michigan Attorney General, ABATE, Detroit Edison, the Michigan Municipal Electric Association, and the Michigan Public Power Agency, filed a petition for review of FERC’s order with the U.S. Court of Appeals for the Seventh Circuit following FERC’s denial of their request for rehearing opposing the allocation methodology in the MISO tariff revision. Regardless of the outcome of this appeal, Consumers expects to continue to recover transmission expenses, including those associated with the MISO tariff revision, through the PSCR process.

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Electric Rate Matters: Rate matters are critical to Consumers’ electric utility business. For details on Consumers’ electric rate matters, see Note 4: Regulatory Matters.

Electric Environmental Estimates: Consumers’ operations are subject to various state and federal environmental laws and regulations. Consumers estimates that it will incur expenditures of $1.5 billion from 2012 through 2018 to continue to comply with the Clean Air Act, Clean Water Act, and numerous state and federal environmental regulations. Consumers expects to recover these costs in customer rates, but cannot guarantee this result. Consumers’ primary environmental compliance focus includes, but is not limited to, the following matters:

Air Quality: In July 2011, the EPA released CSAPR, a final replacement rule for CAIR, which requires Michigan and 27 other states to improve air quality by reducing power plant emissions that, according to EPA computer models, contribute to ground-level ozone and fine particle pollution in other downwind states. This rule had mandated emission reductions beginning in 2012, which CMS Energy and Consumers were prepared to meet through fuel blend changes. In December 2011, due to litigation surrounding CSAPR, the U.S. Court of Appeals for the D.C. Circuit issued a stay of CSAPR, stating that CAIR would remain in place while the court considers the issues. The court heard oral arguments in April 2012, but there is no timeline for a decision or order from the court.

In February 2012, the EPA published its final MACT emission standards for electric generating units, based on Section 112 of the Clean Air Act, calling the final rule MATS. Under MATS, all of Consumers’ existing coal-fueled electric generating units are required to add additional controls for hazardous air pollutants. Generally, existing units must meet the standards within three to four years of issuance of the final rule.

Presently, Consumers’ strategy to comply with CAIR, CSAPR, and MATS involves the installation of emission control equipment at some facilities and the suspension of operations at others; however, Consumers continues to evaluate CSAPR and MATS in conjunction with other EPA rulemakings, litigation, and congressional action. This evaluation could result in:

• additional or accelerated environmental compliance costs related to Consumers’ coal-fueled power plants;

• a change in the fuel mix at coal-fueled and oil-fueled power plants;

• changes in how certain plants are used; and

• the retirement, mothballing, or repowering with an alternative fuel of some or all of Consumers’ older, smaller generating units.

The MDEQ renewed and issued the B.C. Cobb Renewable Operating Permit in August 2011 after an extensive review and a public comment period. In October 2011, the Sierra Club and the Natural Resources Defense Council filed a petition with the EPA to object to the MDEQ’s issuance of the state Renewable Operating Permit, alleging that the facility is not in compliance with certain provisions of the Clean Air Act, including NSR and Title V. Consumers responded to these allegations in December 2011. The EPA could either deny the petition outright or grant the petition and remand the matter to the MDEQ for further action. Consumers believes these claims are baseless, but is unable to predict the outcome of this petition.

Greenhouse Gases: In the recent past, there have been numerous legislative and regulatory initiatives at the state, regional, and national levels that involve the regulation of greenhouse gases. Consumers continues to monitor and comment on these initiatives and also follows litigation involving greenhouse gases. Consumers believes Congress may eventually pass greenhouse gas legislation, but is unable to predict the form and timing of any final legislation.

In 2010, the EPA released its Prevention of Significant Deterioration and Title V Greenhouse Gas Tailoring Rule, which sets greenhouse gas emissions limits that define when permits are required for new and existing industrial facilities under NSR PSD and Title V Renewable Operating Permit programs. Numerous parties have challenged this rule in the U.S. Court of Appeals for the D.C. Circuit. In June 2012, the U.S. Court of Appeals for the D.C. Circuit upheld the Tailoring Rule and dismissed challenges to it and to three other greenhouse gas rules. Consumers does not expect to incur significant expenditures to comply with this rule.

28

In March 2012, the EPA released its proposed “Standards of Performance for Greenhouse Gas Emissions for New Stationary Sources: Electric Utility Generating Units” pursuant to Section 111 of the Clean Air Act. This proposed rule applies only to new fossil-fuel-fired steam electric generating units. The standard would require that carbon dioxide emissions not exceed those of a modern, efficient natural gas combined-cycle plant, regardless of fuel type. Consumers submitted comments on the proposed rule in June 2012. The EPA is also expected to propose emissions guidelines within the next year for states to regulate greenhouse gas emissions from existing generating units under Section 111(d) of the Clean Air Act. Under the expected schedule, states will be required to submit plans to the EPA within nine months of issuance of the final rule and guidelines. Consumers will continue to monitor activity regarding any proposed regulations involving new source performance standards.

Litigation, as well as federal laws, EPA regulations regarding greenhouse gases, or similar treaties, state laws, or rules, if enacted or ratified, could require Consumers to replace equipment, install additional emission control equipment, purchase emission allowances, curtail operations, arrange for alternative sources of supply, or take other steps to manage or lower the emission of greenhouse gases. Although associated capital or operating costs relating to greenhouse gas regulation or legislation could be material and cost recovery cannot be assured, Consumers expects to recover these costs and capital expenditures in rates consistent with the recovery of other reasonable costs of complying with environmental laws and regulations.

CCBs: In June 2010, the EPA proposed rules regulating CCBs, such as coal ash, under the Resource Conservation and Recovery Act. Michigan already regulates CCBs as low-hazard industrial waste. The EPA proposed a range of alternatives for regulating CCBs, including regulation as either a nonhazardous waste or a hazardous waste. If coal ash were regulated as a hazardous waste, Consumers would likely cease the beneficial reuse of this product, which would result in a significant increase in the amount of coal ash requiring costly disposal. Additionally, if the cost of upgrading existing coal ash disposal areas to meet hazardous waste landfill standards were to become economically prohibitive, existing coal ash disposal areas could close, requiring Consumers to find costly alternative arrangements for disposal. Consumers is unable to predict the impacts from this wide range of possible outcomes, but significant expenditures are likely.

Water: In March 2011, the EPA issued a proposed rule to regulate existing electric generating plant cooling water intake systems under Section 316(b) of the Clean Water Act aimed at reducing alleged harmful impacts on fish and shellfish. Consumers continues to evaluate this proposed rule and its potential impacts on Consumers’ plants. A final rule is expected in late 2012. Consumers also expects the EPA to propose new regulations in November 2012 for wastewater discharges from electric generating plants that will require physical and/or chemical treatment facilities for all wastewater. A final rule is expected in 2014.

PCBs: In April 2010, the EPA issued an Advance Notice of Proposed Rulemaking, indicating that it is considering a variety of regulatory actions with respect to PCBs. One proposal aims to phase out equipment containing PCBs by 2025. Another proposal eliminates an exemption for small equipment containing PCBs. To comply with this proposed rule, Consumers could incur substantial costs associated with existing electrical equipment potentially containing PCBs. A proposal is expected in late 2012.

Other electric environmental matters could have a major impact on Consumers’ outlook. For additional details on other electric environmental matters, see Note 3: Contingencies and Commitments – Consumers Electric Utility Contingencies – Electric Environmental Matters.

29

CONSUMERS GAS UTILITY BUSINESS OUTLOOK AND UNCERTAINTIES

Gas Deliveries: Consumers expects weather-adjusted gas deliveries in 2012 to decline by one percent compared with 2011. Over the next five years, Consumers expects average gas deliveries to remain stable. This outlook reflects modest growth in gas demand offset by the predicted effects of energy efficiency and conservation. Actual delivery levels from year to year may vary from this trend due to:

• fluctuations in weather;

• use by independent power producers;

• availability and development of renewable energy sources;

• changes in gas prices;

• Michigan economic conditions, including population trends and housing activity;

• the price of competing energy sources or fuels; and

• energy efficiency and conservation impacts.

Gas Rate Matters: Rate matters are critical to Consumers’ gas utility business. For details on Consumers’ gas rate matters, see Note 4: Regulatory Matters.

Gas Pipeline Safety: In January 2012, President Obama signed the Pipeline Safety, Regulatory Certainty, and Job Creation Act of 2011. The law reauthorizes existing federal pipeline safety programs of the Pipeline and Hazardous Materials Safety Administration through 2015 and it contains provisions mandating:

• an increase in the maximum fine for safety violations to $2 million;

• an increase in the number of pipeline inspectors;

• a study regarding application of integrity management requirements outside of “high consequence areas;”

• a survey regarding existing plans for safe management and replacement of cast iron pipelines;

• prescribed notification and on-site incident response times;

• installation of automatic or remotely controlled shut-off valves on new or replaced pipelines where feasible;

• verification of maximum allowable operating pressure of pipelines in populated areas; and

• pressure testing (or equivalent) of previously untested pipelines.

Consumers continues to comply with laws and regulations governing natural gas pipeline safety. These laws and regulations could cause Consumers to incur significant additional costs related to its natural gas pipeline safety programs. Consumers expects that it would be able to recover the costs in rates, consistent with the recovery of other reasonable costs of complying with laws and regulations.

Gas Environmental Estimates: Consumers expects to incur response activity costs at a number of sites, including 23 former MGP sites. For additional details, see Note 3: Contingencies and Commitments – Consumers Gas Utility Contingencies – Gas Environmental Matters.

CONSUMERS OTHER OUTLOOK AND UNCERTAINTIES

Smart Grid: Consumers’ grid modernization effort continues, with the selection of a vendor that will provide smart electric meters and a cellular communications network to allow Consumers to transmit and receive electric usage information from customers’ homes and businesses. Smart meters are designed to allow customers to monitor and manage their energy usage, which should help reduce demand during critical peak times, resulting in lower peak capacity requirements. The installation of smart meters should also provide operational benefits to Consumers. Consumers intends to use a phased implementation approach, beginning deployment in the second half of 2012 and continuing through 2019. Consumers also plans to install communication modules on gas meters in areas where Consumers provides both electricity and natural gas to customers.

30

ENTERPRISES OUTLOOK AND UNCERTAINTIES

The primary focus with respect to CMS Energy’s remaining non-utility businesses is to optimize cash flow and maximize the value of their assets.

Trends, uncertainties, and other matters that could have a material impact on CMS Energy’s consolidated income, cash flows, or financial position include:

• indemnity and environmental remediation obligations at Bay Harbor;

• obligations related to a tax claim from the government of Equatorial Guinea;

• the outcome of certain legal proceedings;

• impacts of declines in electricity prices on the profitability of the enterprises segment’s generating units;

• representations, warranties, and indemnities provided by CMS Energy or its subsidiaries in connection with previous sales of assets;

• changes in commodity prices and interest rates on certain derivative contracts that do not qualify for hedge accounting and must be marked to market through earnings;

• changes in various environmental laws, regulations, principles, or practices, or in their interpretation; and

• economic conditions in Michigan, including population trends and housing activity.

For additional details regarding the enterprises segment’s uncertainties, see Note 3: Contingencies and Commitments.

OTHER OUTLOOK AND UNCERTAINTIES

EnerBank: EnerBank, a wholly owned subsidiary of CMS Capital, is a Utah state-chartered, FDIC-insured industrial bank providing unsecured home improvement loans. EnerBank represented two percent of CMS Energy’s net assets at June 30, 2012, and five percent of CMS Energy’s net income available to common stockholders for the six months ended June 30, 2012. The carrying value of EnerBank’s loan portfolio was $486 million at June 30, 2012. Its loan portfolio was funded primarily by deposit liabilities of $458 million. Twelve-month rolling average default rates on loans held by EnerBank have declined from 1.1 percent at June 30, 2011 to 0.8 percent at June 30, 2012. CMS Energy is required both by law and by contract to provide financial support, including infusing additional capital, to ensure that EnerBank satisfies mandated capital requirements and has sufficient liquidity to operate. Presently, EnerBank meets or exceeds all of its capital requirements.

Voluntary Separation Program: In April 2012, CMS Energy announced a voluntary separation program for its salaried employees. The separation date for the majority of employees who participated in the program was July 1, 2012. Management approved 232 employees for early separation and CMS Energy recorded a charge of $12 million related to this program during the three months ended June 30, 2012.

Litigation: CMS Energy, Consumers, and certain of their subsidiaries are named as parties in various litigation matters, as well as in administrative proceedings before various courts and governmental agencies, arising in the ordinary course of business. For additional details regarding these and other legal matters, see Note 3: Contingencies and Commitments and Note 4: Regulatory Matters.

31

NEW ACCOUNTING STANDARDS

For details regarding the implementation of new accounting standards during the six months ended June 30, 2012, see Note 1: New Accounting Standards.

32

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33

CMS Energy Corporation

Consolidated Statements of Income

(Unaudited)

										In Millions
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
Operating Revenue		$    1,333			$    1,364			$    3,076			$    3,419
Operating Expenses
Fuel for electric generation		126			153			256			305
Purchased and interchange power		334			303			651			603
Purchased power – related parties		20			20			42			41
Cost of gas sold		133			220			683			988
Maintenance and other operating expenses		282			288			577			567
Depreciation and amortization		130			122			302			284
General taxes		48			51			117			118
Total operating expenses		1,073			1,157			2,628			2,906
Operating Income		260			207			448			513
Other Income (Expense)
Interest income		1			2			2			4
Allowance for equity funds used during construction		2			2			4			3
Income from equity method investees		3			2			8			6
Other income		3			5			6			9
Other expense		(3	)		(3	)		(5	)		(5	)
Total other income		6			8			15			17
Interest Charges
Interest on long-term debt		94			99			188			199
Other interest expense		5			6			11			12
Allowance for borrowed funds used during construction		(1	)		(1	)		(2	)		(2	)
Total interest charges		98			104			197			209
Income Before Income Taxes		168			111			266			321
Income Tax Expense		67			10			105			87
Income From Continuing Operations		101			101			161			234
Income From Discontinued Operations, Net of Tax of $-, $-, $4, and $1		-			-			7			2
Net Income		101			101			168			236
Income Attributable to Noncontrolling Interests		1			1			1			1
Net Income Available to Common Stockholders		$       100			$       100			$       167			$       235

34

	In Millions, Except Per Share Amounts
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
Net Income Attributable to Common Stockholders
Amounts attributable to continuing operations		$       100		$       100		$       160		$       233
Amounts attributable to discontinued operations		-		-		7		2
Net income available to common stockholders		$       100		$       100		$       167		$       235
Income Attributable to Noncontrolling Interests
Amounts attributable to continuing operations		$           1		$           1		$           1		$           1
Amounts attributable to discontinued operations		-		-		-		-
Income attributable to noncontrolling interests		$           1		$           1		$           1		$           1
Basic Earnings Per Average Common Share
Basic earnings from continuing operations		$      0.38		$      0.40		$      0.61		$      0.93
Basic earnings from discontinued operations		-		-		0.03		0.01
Basic earnings attributable to common stock		$      0.38		$      0.40		$      0.64		$      0.94
Diluted Earnings Per Average Common Share
Diluted earnings from continuing operations		$      0.37		$      0.38		$      0.59		$      0.89
Diluted earnings from discontinued operations		-		-		0.03		0.01
Diluted earnings attributable to common stock		$      0.37		$      0.38		$      0.62		$      0.90
Dividends Declared Per Common Share		$      0.24		$      0.21		$      0.48		$      0.42

The accompanying notes are an integral part of these statements.

35

CMS Energy Corporation

Consolidated Statements of Comprehensive Income

(Unaudited)

							In Millions
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
Net Income Attributable to CMS Energy
Net income		$    101		$    101		$    168		$    236
Income attributable to noncontrolling interests		1		1		1		1
Net income attributable to CMS Energy		100		100		167		235
Retirement Benefits Liability
Retirement benefits liability adjustments, net of tax of $- for all periods presented		1		1		2		1
Investments
Unrealized gain on investments, net of tax of $- for all periods presented		1		1		2		1
Other Comprehensive Income		2		2		4		2
Total Comprehensive Income		$    102		$    102		$    171		$    237

The accompanying notes are an integral part of these statements.

36

CMS Energy Corporation

Consolidated Statements of Cash Flows

(Unaudited)

In Millions
Six Months Ended June 30	2012			2011
Cash Flows from Operating Activities
Net income	$	168		$	236
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization		302			284
Deferred income taxes and investment tax credit		102			74
Postretirement benefits expense		94			83
Other non-cash operating activities		35			39
Postretirement benefits contributions		(37	)		(39	)
Changes in other assets and liabilities
Decrease in accounts receivable, notes receivable, and accrued revenue		146			215
Decrease in accrued power supply revenue		-			15
Decrease in inventories		135			204
Increase in accounts payable		10			34
Decrease in accrued expenses		(82	)		(36	)
Decrease in other current and non-current assets		100			71
Increase (decrease) in other current and non-current liabilities		(30	)		36
Net cash provided by operating activities		943			1,216
Cash Flows from Investing Activities
Capital expenditures (excludes assets placed under capital lease)		(575	)		(399	)
Cost to retire property		(20	)		(28	)
Other investing activities		(15	)		(44	)
Net cash used in investing activities		(610	)		(471	)
Cash Flows from Financing Activities
Proceeds from issuance of long-term debt		790			375
Proceeds from (retirements of) EnerBank notes, net		(4	)		21
Issuance of common stock		23			22
Retirement of long-term debt		(972	)		(292	)
Payment of common stock dividends		(125	)		(106	)
Payment of capital and finance lease obligations		(12	)		(12	)
Other financing costs		(7	)		(8	)
Net cash used in financing activities		(307	)		-
Net Increase in Cash and Cash Equivalents, Including Assets Held for Sale		26			745
Decrease in Cash and Cash Equivalents Included in Assets Held for Sale		-			2
Net Increase in Cash and Cash Equivalents		26			747
Cash and Cash Equivalents, Beginning of Period		161			247
Cash and Cash Equivalents, End of Period	$	187		$	994

The accompanying notes are an integral part of these statements.

37

CMS Energy Corporation

Consolidated Balance Sheets

(Unaudited)

ASSETS
			In Millions
	June 30		December 31
	2012		2011
Current Assets
Cash and cash equivalents	$	187	$	161
Restricted cash and cash equivalents		28		27
Accounts receivable and accrued revenue, less allowances of $35 in 2012 and 2011		670		869
Notes receivable		40		49
Accounts receivable – related parties		10		10
Inventories at average cost
Gas in underground storage		760		929
Materials and supplies		96		92
Generating plant fuel stock		196		166
Deferred income taxes		-		24
Deferred property taxes		136		187
Regulatory assets		13		1
Prepayments and other current assets		70		50
Total current assets		2,206		2,565
Plant, Property, and Equipment
Plant, property, and equipment, gross		14,959		14,751
Less accumulated depreciation and amortization		4,973		4,901
Plant, property, and equipment, net		9,986		9,850
Construction work in progress		1,011		783
Total plant, property, and equipment		10,997		10,633
Other Non-current Assets
Regulatory assets		2,335		2,466
Accounts and notes receivable, less allowances of $5 in 2012 and 2011		461		462
Investments		54		50
Other		240		276
Total other non-current assets		3,090		3,254
Total Assets	$	16,293	$	16,452

38

LIABILITIES AND EQUITY
				In Millions
	June 30			December 31
	2012			2011
Current Liabilities
Current portion of long-term debt, capital and finance lease obligations	$	653		$	1,057
Accounts payable		527			575
Accounts payable – related parties		9			9
Accrued rate refunds		37			30
Accrued interest		96			101
Accrued taxes		199			282
Deferred income taxes		28			-
Regulatory liabilities		122			125
Other current liabilities		136			159
Total current liabilities		1,807			2,338
Non-current Liabilities
Long-term debt		6,221			6,040
Non-current portion of capital and finance lease obligations		157			167
Regulatory liabilities		1,933			1,875
Postretirement benefits		1,289			1,289
Asset retirement obligations		261			254
Deferred investment tax credit		44			46
Deferred income taxes		1,090			1,035
Other non-current liabilities		336			336
Total non-current liabilities		11,331			11,042
Commitments and Contingencies (Notes 3, 4, 5, 7, and 8)
Equity
Common stockholders equity
Common stock, authorized 350.0 shares; outstanding 263.7 shares in 2012 and 254.1 shares in 2011		3			3
Other paid-in capital		4,664			4,627
Accumulated other comprehensive loss		(45	)		(49	)
Accumulated deficit		(1,511	)		(1,553	)
Total common stockholders equity		3,111			3,028
Noncontrolling interests		44			44
Total equity		3,155			3,072
Total Liabilities and Equity	$	16,293		$	16,452

The accompanying notes are an integral part of these statements.

39

CMS Energy Corporation

Consolidated Statements of Changes in Equity

(Unaudited)

										In Millions
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
Common Stock
At beginning of period	$	3		$	3		$	3		$	2
Common stock issued		-			-			-			1
At end of period		3			3			3			3
Other Paid-in Capital
At beginning of period		4,641			4,599			4,627			4,588
Common stock issued		23			22			31			28
Common stock reissued		-			-			6			5
At end of period		4,664			4,621			4,664			4,621
Accumulated Other Comprehensive Loss
Retirement benefits liability
At beginning of period		(47	)		(39	)		(48	)		(39	)
Retirement benefits liability adjustments		1			1			2			1
At end of period		(46	)		(38	)		(46	)		(38	)
Investments
At beginning of period		1			-			-			-
Unrealized gain on investments		1			1			2			1
At end of period		2			1			2			1
Derivative instruments
At beginning and end of period		(1	)		(1	)		(1	)		(1	)
At end of period		(45	)		(38	)		(45	)		(38	)
Accumulated Deficit
At beginning of period		(1,548	)		(1,675	)		(1,553	)		(1,757	)
Net income attributable to CMS Energy		100			100			167			235
Common stock dividends declared		(63	)		(53	)		(125	)		(106	)
At end of period		(1,511	)		(1,628	)		(1,511	)		(1,628	)
Noncontrolling Interests
At beginning of period		44			44			44			44
Income attributable to noncontrolling interests		1			1			1			1
Distributions and other changes in noncontrolling interests		(1	)		(1	)		(1	)		(1	)
At end of period		44			44			44			44
Total Equity	$	3,155		$	3,002		$	3,155		$	3,002

The accompanying notes are an integral part of these statements.

40

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41

Consumers Energy Company

Consolidated Statements of Income

(Unaudited)

										In Millions
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
Operating Revenue	$	1,282		$	1,303		$	2,957		$	3,291
Operating Expenses
Fuel for electric generation		110			138			216			267
Purchased and interchange power		327			299			640			592
Purchased power – related parties		21			19			42			40
Cost of gas sold		124			197			660			950
Maintenance and other operating expenses		266			273			543			538
Depreciation and amortization		128			121			299			282
General taxes		46			49			114			115
Total operating expenses		1,022			1,096			2,514			2,784
Operating Income		260			207			443			507
Other Income (Expense)
Interest income		1			2			2			4
Allowance for equity funds used during construction		2			2			4			3
Other income		3			5			11			13
Other expense		(3	)		(3	)		(5	)		(5	)
Total other income		3			6			12			15
Interest Charges
Interest on long-term debt		58			63			119			126
Other interest expense		4			5			8			9
Allowance for borrowed funds used during construction		(1	)		(1	)		(2	)		(2	)
Total interest charges		61			67			125			133
Income Before Income Taxes		202			146			330			389
Income Tax Expense		80			54			132			144
Net Income		122			92			198			245
Preferred Stock Dividends		1			1			1			1
Net Income Available to Common Stockholder	$	121		$	91		$	197		$	244

The accompanying notes are an integral part of these statements.

42

Consumers Energy Company

Consolidated Statements of Comprehensive Income

(Unaudited)

In Millions
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
Net Income		$    122		$    92		$    198		$    245
Retirement Benefits Liability
Retirement benefits liability adjustments, net of tax of $- for all periods presented		-		-		1		1
Investments
Unrealized gain (loss) on investments, net of tax benefit of $-, $-, $(2), and $(1)		3		-		-		(1	)
Other Comprehensive Income		3		-		1		-
Total Comprehensive Income		$    125		$    92		$    199		$    245

The accompanying notes are an integral part of these statements.

43

Consumers Energy Company

Consolidated Statements of Cash Flows

(Unaudited)

In Millions
Six Months Ended June 30	2012			2011
Cash Flows from Operating Activities
Net income	$	198		$	245
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization		299			282
Deferred income taxes and investment tax credit		39			82
Postretirement benefits expense		92			78
Other non-cash operating activities		31			31
Postretirement benefits contributions		(34	)		(37	)
Changes in other assets and liabilities
Decrease in accounts receivable, notes receivable, and accrued revenue		146			207
Decrease in accrued power supply revenue		-			15
Decrease in inventories		137			202
Increase in accounts payable		11			42
Decrease in accrued expenses		(19	)		(12	)
Decrease in other current and non-current assets		103			68
Increase in other current and non-current liabilities		10			42
Net cash provided by operating activities		1,013			1,245
Cash Flows from Investing Activities
Capital expenditures (excludes assets placed under capital lease)		(572	)		(394	)
Cost to retire property		(20	)		(28	)
Other investing activities		(9	)		(23	)
Net cash used in investing activities		(601	)		(445	)
Cash Flows from Financing Activities
Proceeds from issuance of long-term debt		375			-
Retirement of long-term debt		(694	)		(18	)
Payment of common stock dividends		(158	)		(196	)
Payment of preferred stock dividends		(1	)		(1	)
Stockholder contribution		150			125
Payment of capital and finance lease obligations		(12	)		(12	)
Other financing costs		(3	)		(3	)
Net cash used in financing activities		(343	)		(105	)
Net Increase in Cash and Cash Equivalents		69			695
Cash and Cash Equivalents, Beginning of Period		85			71
Cash and Cash Equivalents, End of Period	$	154		$	766

The accompanying notes are an integral part of these statements.

44

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45

Consumers Energy Company

Consolidated Balance Sheets

(Unaudited)

ASSETS

	In Millions
	June 30		December 31
	2012		2011
Current Assets
Cash and cash equivalents	$	154	$	85
Restricted cash and cash equivalents		27		26
Accounts receivable and accrued revenue, less allowances of $33 in 2012 and 2011		659		860
Notes receivable		13		23
Accounts receivable – related parties		1		1
Inventories at average cost
Gas in underground storage		756		929
Materials and supplies		92		88
Generating plant fuel stock		196		164
Deferred property taxes		136		187
Regulatory assets		13		1
Prepayments and other current assets		63		43
Total current assets		2,110		2,407
Plant, Property, and Equipment
Plant, property, and equipment, gross		14,825		14,621
Less accumulated depreciation and amortization		4,915		4,846
Plant, property, and equipment, net		9,910		9,775
Construction work in progress		1,010		782
Total plant, property, and equipment		10,920		10,557
Other Non-current Assets
Regulatory assets		2,335		2,466
Accounts and notes receivable		1		1
Investments		31		35
Other		157		196
Total other non-current assets		2,524		2,698
Total Assets	$	15,554	$	15,662

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LIABILITIES AND EQUITY
In Millions
	June 30			December 31
	2012			2011
Current Liabilities
Current portion of long-term debt, capital and finance lease obligations	$	62		$	363
Accounts payable		512			561
Accounts payable – related parties		12			11
Accrued rate refunds		37			30
Accrued interest		65			73
Accrued taxes		271			287
Deferred income taxes		85			73
Regulatory liabilities		122			125
Other current liabilities		108			119
Total current liabilities		1,274			1,642
Non-current Liabilities
Long-term debt		3,967			3,987
Non-current portion of capital and finance lease obligations		157			167
Regulatory liabilities		1,933			1,875
Postretirement benefits		1,227			1,225
Asset retirement obligations		260			253
Deferred investment tax credit		44			46
Deferred income taxes		1,846			1,817
Other non-current liabilities		262			256
Total non-current liabilities		9,696			9,626
Commitments and Contingencies (Notes 3, 4, 5, 7, and 8)
Equity
Common stockholder equity
Common stock, authorized 125.0 shares; outstanding 84.1 shares for both periods		841			841
Other paid-in capital		3,107			2,957
Accumulated other comprehensive loss		(1	)		(2	)
Retained earnings		593			554
Total common stockholder equity		4,540			4,350
Preferred stock		44			44
Total equity		4,584			4,394
Total Liabilities and Equity	$	15,554		$	15,662

The accompanying notes are an integral part of these statements.

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Consumers Energy Company

Consolidated Statements of Changes in Equity

(Unaudited)

In Millions
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
Common Stock
At beginning and end of period	$	841		$	841		$	841		$	841
Other Paid-in Capital
At beginning of period		3,107			2,957			2,957			2,832
Stockholder contribution		-			-			150			125
At end of period		3,107			2,957			3,107			2,957
Accumulated Other Comprehensive Loss
Retirement benefits liability
At beginning of period		(18	)		(15	)		(19	)		(16	)
Retirement benefits liability adjustments		-			-			1			1
At end of period		(18	)		(15	)		(18	)		(15	)
Investments
At beginning of period		14			15			17			16
Unrealized gain (loss) on investments		3			-			-			(1	)
At end of period		17			15			17			15
At end of period		(1	)		-			(1	)		-
Retained Earnings
At beginning of period		515			512			554			463
Net income		122			92			198			245
Common stock dividends declared		(43	)		(92	)		(158	)		(196	)
Preferred stock dividends declared		(1	)		(1	)		(1	)		(1	)
At end of period		593			511			593			511
Preferred Stock
At beginning and end of period		44			44			44			44
Total Equity	$	4,584		$	4,353		$	4,584		$	4,353

The accompanying notes are an integral part of these statements.

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CMS Energy Corporation

Consumers Energy Company

NOTES TO THE UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

These interim consolidated financial statements have been prepared by CMS Energy and Consumers in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. As a result, CMS Energy and Consumers have condensed or omitted certain information and note disclosures normally included in consolidated financial statements prepared in accordance with GAAP. CMS Energy and Consumers have reclassified certain prior period amounts to conform to the presentation in the current period. In management’s opinion, the unaudited information contained in this report reflects all adjustments of a normal recurring nature necessary to ensure the fair presentation of financial position, results of operations, and cash flows for the periods presented. The notes to the consolidated financial statements and the related consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in the 2011 Form 10-K. Due to the seasonal nature of CMS Energy’s and Consumers’ operations, the results presented for this interim period are not necessarily indicative of results to be achieved for the fiscal year.

1:     NEW ACCOUNTING STANDARDS

IMPLEMENTATION OF NEW ACCOUNTING STANDARDS

ASU 2011-05, Presentation of Comprehensive Income: This standard, which became effective January 1, 2012 for CMS Energy and Consumers, eliminates the option of reporting other comprehensive income and its components on the statement of changes in equity. Prior to the implementation of this standard, both CMS Energy and Consumers used this option for their consolidated financial statements. Under the standard, entities are required to present either a single continuous statement of comprehensive income, containing both net income and components of other comprehensive income, or two separate consecutive statements. CMS Energy and Consumers have chosen to present two separate consecutive statements. This standard affects only the presentation of comprehensive income on CMS Energy’s and Consumers’ consolidated financial statements.

ASU 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs: This standard, which became effective January 1, 2012 for CMS Energy and Consumers, is the result of a joint project of the Financial Accounting Standards Board and the International Accounting Standards Board. The primary objective of the standard is to ensure that fair value has the same meaning under GAAP and International Financial Reporting Standards and to establish common fair value measurement guidance in the two sets of standards. The standard does not change the overall fair value model in GAAP, but it amends various fair value principles and establishes additional disclosure requirements. This standard did not impact CMS Energy’s or Consumers’ consolidated income, cash flows, or financial position, but did require additional disclosures.

2:     FAIR VALUE MEASUREMENTS

Accounting standards define fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. When measuring fair value, CMS Energy and Consumers are required to incorporate all assumptions that market participants would use in pricing an asset or liability, including assumptions about risk. A fair value hierarchy prioritizes inputs used to measure fair value according to their observability in the market. The three levels of the fair value hierarchy are as follows:

• Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities.

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• Level 2 inputs are observable, market-based inputs, other than Level 1 prices. Level 2 inputs may include quoted prices for similar assets or liabilities in active markets, quoted prices in inactive markets, interest rates and yield curves observable at commonly quoted intervals, forward prices, credit risks, default rates, and inputs derived from or corroborated by observable market data.

• Level 3 inputs are unobservable inputs that reflect CMS Energy’s or Consumers’ own assumptions about how market participants would value their assets and liabilities.

To the extent possible, CMS Energy and Consumers use quoted market prices or other observable market pricing data in valuing assets and liabilities measured at fair value. If this information is unavailable, they use market-corroborated data or reasonable estimates about market participant assumptions. CMS Energy and Consumers classify fair value measurements within the fair value hierarchy based on the lowest level of input that is significant to the fair value measurement in its entirety.

ASSETS AND LIABILITIES MEASURED AT FAIR VALUE ON A RECURRING BASIS

Presented in the following tables are CMS Energy’s and Consumers’ assets and liabilities, by level within the fair value hierarchy, reported at fair value on a recurring basis:

In Millions
June 30, 2012	Total		Level 1		Level 2		Level 3
CMS Energy, including Consumers
Assets
Cash equivalents		$    141		$    141		$        -		$        -
Restricted cash equivalents		14		14		-		-
Nonqualified deferred compensation plan assets		5		5		-		-
SERP
Mutual funds		127		127		-		-
Derivative instruments
Commodity contracts		7		1		1		5
Total		$    294		$    288		$        1		$        5
Liabilities
Nonqualified deferred compensation plan liabilities		$        5		$        5		$        -		$        -
Derivative instruments
Commodity contracts		6		-		4		2
Total		$      11		$        5		$       4		$        2
Consumers
Assets
Cash equivalents		$    122		$    122		$        -		$        -
Restricted cash equivalents		14		14		-		-
CMS Energy common stock		30		30		-		-
Nonqualified deferred compensation plan assets		3		3		-		-
SERP
Mutual funds		86		86		-		-
Derivative instruments
Commodity contracts		5		-		-		5
Total		$    260		$    255		$        -		$        5
Liabilities
Nonqualified deferred compensation plan liabilities		$        3		$        3		$        -		$        -
Total		$        3		$        3		$        -		$        -

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In Millions
December 31, 2011	Total		Level 1		Level 2		Level 3
CMS Energy, including Consumers
Assets
Cash equivalents	$	109	$	109	$	-	$	-
Restricted cash equivalents		15		15		-		-
Nonqualified deferred compensation plan assets		4		4		-		-
SERP
Cash equivalents		1		1		-		-
Mutual funds		113		113		-		-
Derivative instruments
Commodity contracts		3		1		-		2
Total	$	245	$	243	$	-	$	2
Liabilities
Nonqualified deferred compensation plan liabilities	$	4	$	4	$	-	$	-
Derivative instruments
Commodity contracts		7		-		3		4
Total	$	11	$	4	$	3	$	4
Consumers
Assets
Cash equivalents	$	56	$	56	$	-	$	-
Restricted cash equivalents		14		14		-		-
CMS Energy common stock		35		35		-		-
Nonqualified deferred compensation plan assets		3		3		-		-
SERP
Cash equivalents		1		1		-		-
Mutual funds		74		74		-		-
Derivative instruments
Commodity contracts		2		-		-		2
Total	$	185	$	183	$	-	$	2
Liabilities
Nonqualified deferred compensation plan liabilities	$	3	$	3	$	-	$	-
Total	$	3	$	3	$	-	$	-

Cash Equivalents: Cash equivalents and restricted cash equivalents consist of money market funds with daily liquidity.

Nonqualified Deferred Compensation Plan Assets: The nonqualified deferred compensation plan assets consist of various mutual funds that are valued using a market approach. CMS Energy and Consumers value these assets using the daily quoted net asset values that are the basis for transactions to buy or sell shares in each fund. CMS Energy and Consumers report these assets in other non-current assets on their consolidated balance sheets.

SERP Assets: CMS Energy and Consumers value their SERP assets using a market approach, incorporating prices and other relevant information from market transactions. The SERP invests in mutual funds that hold primarily fixed-income instruments of varying maturities. In order to meet their investment objectives, the funds hold investment-grade debt securities, and may invest a portion of their assets in high-yield securities, foreign debt, and derivative instruments. CMS Energy and Consumers value these funds using the daily quoted net asset values that are the basis for transactions to buy or sell shares in each fund. The SERP cash equivalents at December 31, 2011 consisted of a money market fund with daily liquidity. CMS Energy and Consumers report their SERP assets in other non-current assets on their consolidated balance sheets. For additional details about SERP securities, see Note 7: Financial Instruments.

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Nonqualified Deferred Compensation Plan Liabilities: CMS Energy and Consumers value their nonqualified deferred compensation plan liabilities based on the fair values of the plan assets, as they reflect what is owed to the plan participants in accordance with their investment elections. CMS Energy and Consumers report these liabilities in other non-current liabilities on their consolidated balance sheets.

Derivative Instruments: CMS Energy and Consumers value their derivative instruments using either a market approach that incorporates information from market transactions, or an income approach that discounts future expected cash flows to a present value amount. CMS Energy has exchange-traded derivative contracts that are valued based on Level 1 quoted prices, as well as derivatives valued using Level 2 inputs, including commodity forward prices, interest rates, credit ratings, default rates, and market-based seasonality factors. CMS Energy and Consumers have classified certain derivatives as Level 3 since the fair value measurements incorporate assumptions that cannot be observed or confirmed through market transactions.

The most significant derivatives classified as Level 3 are a power option sold by CMS ERM and FTRs held by Consumers. The power option sold by CMS ERM is valued using unobservable assumptions about price volatility and the pricing differential between the delivery point and the nearest active market. Due to the lack of quoted pricing information, Consumers determines the fair value of its FTRs based on Consumers’ average historical settlements. Under regulatory accounting, all changes in fair value associated with FTRs are deferred as regulatory assets or liabilities until the instruments are settled. In valuing their derivative instruments not classified as Level 1, CMS Energy and Consumers may incorporate adjustments for credit risk, or the risk of nonperformance, as deemed appropriate. CMS Energy and Consumers apply credit risk adjustments, where appropriate, to the net receivable from or payable to each counterparty. For additional details about derivative contracts, see Note 8: Derivative Instruments.

ASSETS AND LIABILITIES MEASURED AT FAIR VALUE ON A RECURRING BASIS USING SIGNIFICANT LEVEL 3 INPUTS

Presented in the following tables are reconciliations of changes in the fair values of Level 3 assets and liabilities at CMS Energy and Consumers:

In Millions
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Balance at beginning of period		$       (1	)		$       (2	)		$       (2	)		$       (3	)
Total gains included in earnings1		-			-			2			-
Total gains offset through regulatory accounting		9			2			7			2
Purchases		-			-			-			1
Settlements		(5	)		-			(4	)		-
Balance at end of period		$        3			$         -			$        3			$         -
Unrealized gains included in earnings relating to assets and liabilities still held at end of period1		$         -			$         -			$        2			$        1
Consumers
Balance at beginning of period		$        1			$         -			$        2			$        1
Total gains offset through regulatory accounting		9			2			7			2
Purchases		-			1			-			1
Settlements		(5	)		-			(4	)		(1	)
Balance at end of period		$        5			$        3			$        5			$        3

¹ CMS Energy records realized and unrealized gains and losses for Level 3 recurring fair value measurements in earnings as a

component of operating revenue or maintenance and other operating expenses on its consolidated statements of income.

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3:     CONTINGENCIES AND COMMITMENTS

CMS Energy and Consumers are involved in various matters that give rise to contingent liabilities. Depending on the specific issues, the resolution of these contingencies could have a material effect on CMS Energy’s and Consumers’ liquidity, financial condition, and results of operations. In their disclosures of these matters, CMS Energy and Consumers provide an estimate of the possible loss or range of loss when such an estimate can be made. Disclosures that state that CMS Energy or Consumers cannot predict the outcome of a matter indicate that they are unable to estimate a possible loss or range of loss for the matter.

CMS ENERGY CONTINGENCIES

Gas Index Price Reporting Investigation: In 2002, CMS Energy notified appropriate regulatory and governmental agencies that some employees at CMS MST and CMS Field Services appeared to have provided inaccurate information regarding natural gas trades to various energy industry publications which compile and report index prices. Although CMS Energy has not received any formal notification that the DOJ has completed its investigation, the DOJ’s last request for information occurred in 2003, and CMS Energy completed its response to this request in 2004. CMS Energy is unable to predict the outcome of the DOJ investigation and what effect, if any, the investigation will have on CMS Energy.

Gas Index Price Reporting Litigation: CMS Energy, along with CMS MST, CMS Field Services, Cantera Natural Gas, Inc., and Cantera Gas Company, are named as defendants in various lawsuits arising as a result of alleged inaccurate natural gas price reporting to publications that report trade information. Allegations include manipulation of NYMEX natural gas futures and options prices, price-fixing conspiracies, restraint of trade, and artificial inflation of natural gas retail prices in Colorado, Kansas, Missouri, and Wisconsin. The following provides more detail on these proceedings:

• In 2005, CMS Energy, CMS MST, and CMS Field Services were named as defendants in a putative class action filed in Kansas state court, Learjet, Inc., et al. v. Oneok, Inc., et al. The complaint alleges that during the putative class period, January 1, 2000 through October 31, 2002, the defendants engaged in a scheme to violate the Kansas Restraint of Trade Act. The plaintiffs are seeking statutory full consideration damages consisting of the full consideration paid by plaintiffs for natural gas allegedly purchased from defendants.

• In 2007, a class action complaint, Heartland Regional Medical Center, et al. v. Oneok, Inc. et al., was filed in Missouri state court alleging violations of Missouri antitrust laws. Defendants, including CMS Energy, CMS Field Services, and CMS MST, are alleged to have violated the Missouri antitrust law in connection with their natural gas reporting activities.

• Breckenridge Brewery of Colorado, LLC and BBD Acquisition Co. v. Oneok, Inc., et al., a class action complaint brought on behalf of retail direct purchasers of natural gas in Colorado, was filed in Colorado state court in 2006. Defendants, including CMS Energy, CMS Field Services, and CMS MST, are alleged to have violated the Colorado Antitrust Act of 1992 in connection with their natural gas reporting activities. Plaintiffs are seeking full refund damages.

• A class action complaint, Arandell Corp., et al. v. XCEL Energy Inc., et al., was filed in 2006 in Wisconsin state court on behalf of Wisconsin commercial entities that purchased natural gas between January 1, 2000 and October 31, 2002. The defendants, including CMS Energy, CMS ERM, and Cantera Gas Company, are alleged to have violated Wisconsin’s antitrust statute.

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The plaintiffs are seeking full consideration damages, plus exemplary damages and attorneys’ fees. After dismissal on jurisdictional grounds in 2009, plaintiffs filed a new complaint in the U.S. District Court for the Eastern District of Michigan. In 2010, the MDL judge issued an opinion and order granting the CMS Energy defendants’ motion to dismiss the Michigan complaint on statute-of-limitations grounds and all CMS Energy defendants have been dismissed from the Arandell (Michigan) action.

• Another class action complaint, Newpage Wisconsin System v. CMS ERM, et al., was filed in 2009 in circuit court in Wood County, Wisconsin, against CMS Energy, CMS ERM, Cantera Gas Company, and others. The plaintiff is seeking full consideration damages, treble damages, costs, interest, and attorneys’ fees.

• In 2005, J.P. Morgan Trust Company, in its capacity as Trustee of the FLI Liquidating Trust, filed an action in Kansas state court against CMS Energy, CMS MST, CMS Field Services, and others. The complaint alleges various claims under the Kansas Restraint of Trade Act. The plaintiff is seeking statutory full consideration damages for its purchases of natural gas in 2000 and 2001.

After removal to federal court, all of the cases described above were transferred to the MDL. CMS Energy was dismissed from the Learjet, Heartland, and J.P. Morgan cases in 2009, but other CMS Energy defendants remained parties. All CMS Energy defendants were dismissed from the Breckenridge case in 2009. In 2010, CMS Energy and Cantera Gas Company were dismissed from the Newpage case and the Arandell (Wisconsin) case was reinstated against CMS ERM. In July 2011, all claims against remaining CMS Energy defendants in the MDL cases were dismissed based on FERC preemption. Plaintiffs have filed appeals in all of the cases. The issues on appeal are whether the district court erred in dismissing the cases based on FERC preemption and denying the plaintiffs’ motions for leave to amend their complaints to add a federal Sherman Act antitrust claim. The plaintiffs did not appeal the dismissal of CMS Energy as a defendant in these cases, but other CMS Energy entities remain as defendants.

These cases involve complex facts, a large number of similarly situated defendants with different factual positions, and multiple jurisdictions. Presently, any estimate of liability would be highly speculative; the amount of CMS Energy’s possible loss would be based on widely varying models previously untested in this context. If the outcome after appeals is unfavorable, these cases could have a material adverse impact on CMS Energy’s liquidity, financial condition, and results of operations.

Bay Harbor: As part of the development of Bay Harbor by certain subsidiaries of CMS Energy, and under an agreement with the MDEQ, third parties constructed a golf course and park over several abandoned CKD piles left over from the former cement plant operations on the Bay Harbor site. The third parties also undertook a series of response activities, including constructing a leachate collection system in one area where CKD-impacted groundwater was entering Little Traverse Bay. Leachate is produced when water enters into the CKD piles. In 2002, CMS Energy sold its interest in Bay Harbor, but retained its obligations under environmental indemnities entered into at the start of the project.

In 2005, the EPA, along with CMS Land and CMS Capital, voluntarily executed an Administrative Order on Consent under Superfund, and the EPA approved a Removal Action Work Plan to address contamination issues. Collection systems required under the plan have been installed and effectiveness monitoring of the systems at the shoreline is ongoing. CMS Land, CMS Capital, and the EPA agreed upon augmentation measures to address areas where pH measurements were not satisfactory. Several augmentation measures were implemented and completed in 2009, with the remaining measure completed in 2010.

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In May 2011, CMS Energy received approval from the EPA on a revised scope of remedies that CMS Energy had submitted in December 2010. CMS Energy reached a tentative agreement with the MDEQ in December 2011 that identifies the final remedies at the site. The EPA notified the MDEQ in March 2012 that it had no objections to this tentative agreement, and in June 2012, CMS Energy and the MDEQ finalized the agreement. Following the execution of this agreement, a change in Michigan law was enacted that included additional provisions regarding monitoring and compliance requirements for certain contaminants. As a consequence, and as allowed by the agreement with the MDEQ, CMS Energy eliminated certain remedies from its remediation plan that were previously required under the agreement. CMS Energy also agreed to perform additional monitoring and to modify certain areas of the collection systems.

In 2010, the MDEQ issued an NPDES permit that authorizes CMS Land to discharge treated leachate into Little Traverse Bay. This permit requires renewal every five years. Discharge of treated leachate under the permit has commenced. In 2010, CMS Land also committed to investigate the potential for a deep injection well on the Bay Harbor site as an alternative long-term method of leachate disposal. The agreement requiring this investigation was amended in June 2012 to require that CMS Land perform this investigation only if CMS Land is unable to meet the requirements of its NPDES discharge permit. In 2008, the MDEQ and the EPA granted permits for CMS Land or its wholly owned subsidiary, Beeland Group LLC, to construct and operate an off-site deep injection well in Antrim County, Michigan, to dispose of leachate from Bay Harbor. Certain environmental groups, a local township, and a local county filed lawsuits appealing the permits and seeking an injunction. A temporary restraining order was issued by the trial court. The legal proceeding was stayed in 2009 and can be renewed by either party at any time. CMS Land no longer expects to incur costs related to these proposed deep injection wells at either the Bay Harbor site or in Antrim County.

Following these developments, CMS Energy reassessed its remediation strategy and anticipated costs, and determined that no adjustment was required to the liability recorded for CMS Energy’s remaining obligations at the site.

Various claims have been brought against CMS Land or its affiliates, including CMS Energy, alleging environmental damage to property, loss of property value, insufficient disclosure of environmental matters, breach of agreement relating to access, or other matters. In October 2010, CMS Land and other parties received a demand for payment from the EPA in the amount of $7 million, plus interest, whereby the EPA is seeking recovery, as allowed under Superfund, of the EPA’s response costs incurred at the Bay Harbor site. CMS Land communicated to the EPA in November 2010 that it does not believe that this is a valid claim.

CMS Energy has recorded a cumulative charge related to Bay Harbor of $225 million, which includes accretion expense. At June 30, 2012, CMS Energy had a recorded liability of $68 million for its remaining obligations. CMS Energy calculated this liability based on discounted projected costs, using a discount rate of 4.34 percent and an inflation rate of one percent on annual operating and maintenance costs. CMS Energy based the discount rate on the interest rate for 30-year U.S. Treasury securities at December 31, 2010. The undiscounted amount of the remaining obligation is $89 million. CMS Energy expects to pay $11 million during the remainder of 2012, $8 million in 2013, $5 million in 2014, $4 million in 2015, $4 million in 2016, and the remaining amount thereafter on long-term liquid disposal and operating and maintenance costs.

CMS Energy’s estimate of response activity costs and the timing of expenditures could change if there are additional major changes in circumstances or assumptions, including but not limited to:

• inability to complete the present long-term water disposal strategy at a reasonable cost;

• requirements to alter the present long-term water disposal strategy upon expiration of the NPDES permit if the MDEQ or EPA identify a more suitable alternative;

• an increase in the number of contamination areas;

• different remediation techniques;

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• the nature and extent of contamination;

• delays in the receipt of requested permits;

• delays following the receipt of any requested permits due to legal appeals of third parties;

• additional or new legal or regulatory requirements; or

• new or different landowner claims.

Depending on the size of any indemnity obligation or liability under environmental laws, an adverse outcome of this matter could have a material adverse effect on CMS Energy’s liquidity and financial condition and could negatively affect CMS Energy’s financial results. Although a liability for its present estimate of remaining response activity costs has been recorded, CMS Energy cannot predict the ultimate financial impact or outcome of this matter.

Equatorial Guinea Tax Claim: In January 2002, CMS Energy sold its oil, gas, and methanol investments in Equatorial Guinea. The government of Equatorial Guinea claims that CMS Energy owes $142 million in taxes, plus interest, in connection with the sale. CMS Energy has concluded that the government’s tax claim is without merit. The government of Equatorial Guinea indicated through a request for arbitration in October 2011 that it still intends to pursue its claim. CMS Energy is vigorously contesting the claim, and cannot predict the financial impact or outcome of this matter.

Panhandle Tax Indemnification: CMS Energy recorded a liability in 2003 for an indemnification provided in conjunction with the sale of Panhandle. As of March 31, 2012 the statute of limitations had expired for this indemnification. Accordingly, CMS Energy eliminated the liability during the three months ended March 31, 2012 and recognized an after-tax benefit of $7 million in discontinued operations.

CONSUMERS ELECTRIC UTILITY CONTINGENCIES

Electric Environmental Matters: Consumers’ operations are subject to environmental laws and regulations. Historically, Consumers has generally been able to recover, in customer rates, the costs to operate its facilities in compliance with these laws and regulations.

Cleanup and Solid Waste: Consumers expects to incur remediation and other response activity costs at a number of sites under NREPA. Consumers believes that these costs should be recoverable in rates, but cannot guarantee that outcome. Consumers estimates that its liability for NREPA sites will be between $4 million and $7 million. At June 30, 2012, Consumers had a recorded liability of $4 million, the minimum amount in the range of its estimated probable NREPA liability.

Consumers is a potentially responsible party at a number of contaminated sites administered under the Superfund. Superfund liability is joint and several. In addition to Consumers, many other creditworthy parties with substantial assets are potentially responsible with respect to the individual sites. In 2010, Consumers received official notification from the EPA that identified Consumers as a potentially responsible party at the Kalamazoo River Superfund site. The notification claimed that the EPA has reason to believe Consumers disposed of PCBs and arranged for the disposal and treatment of PCB-containing materials at portions of the site. Consumers responded to the EPA in 2010, stating that it has no information showing that it disposed of PCBs or arranged for disposal or treatment of PCB-containing material at portions of the site and requesting further information from the EPA before Consumers would commit to perform or finance cleanup activities at the site. In April 2011, Consumers received a follow-up letter from the EPA requesting that Consumers, as a potentially responsible party at the Kalamazoo River Superfund site, agree to participate in a removal action plan along with several other companies for an area of lower Portage Creek. The letter also indicated that under Sections 106 and 107 of Superfund, Consumers may be liable for reimbursement of the EPA’s costs and potential penalties for noncompliance with any unilateral order that the EPA may issue requiring performance under the removal action plan. All parties, including Consumers, that were asked to participate in the removal action plan

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declined to accept liability. In August 2011, the EPA announced that it would proceed with the removal action plan and would continue to pursue potentially responsible parties to perform or pay for some or all of the work. The EPA has provided limited information regarding Consumers’ potential responsibility for contamination at the site and has not yet given an indication of the share of any cleanup costs for which Consumers could be held responsible. Consumers continues to investigate the EPA’s claim that it disposed of PCBs or arranged for disposal or treatment of PCB-containing material at portions of the site. Until further information is received from the EPA, Consumers is unable to estimate a range of potential liability for cleanup of the river.

Based on its experience, Consumers estimates that its share of the total liability for other known Superfund sites will be between $2 million and $8 million. Various factors, including the number of potentially responsible parties involved with each site, affect Consumers’ share of the total liability. At June 30, 2012, Consumers had a recorded liability of $2 million for its share of the total liability at these sites, the minimum amount in the range of its estimated probable Superfund liability.

The timing of payments related to Consumers’ remediation and other response activities at its Superfund and NREPA sites is uncertain. Consumers periodically reviews these cost estimates. Any significant change in the underlying assumptions, such as an increase in the number of sites, different remediation techniques, the nature and extent of contamination, and legal and regulatory requirements, could affect its estimates of NREPA and Superfund liability.

Ludington PCB: In 1998, during routine maintenance activities, Consumers identified PCB as a component in certain paint, grout, and sealant materials at Ludington. Consumers removed and replaced part of the PCB material with non-PCB material. Since proposing a plan to take action with respect to the remaining materials, Consumers has had several communications with the EPA. Consumers is not able to predict when the EPA will issue a final ruling and cannot predict the financial impact or outcome of this matter.

Electric Utility Plant Air Permit Issues and Notices of Violation: In 2007, Consumers received an NOV/FOV from the EPA alleging that fourteen utility boilers exceeded the visible emission limits in their associated air permits. Consumers has responded formally to the NOV/FOV denying the allegations. In addition, in 2008, Consumers received an NOV for three of its coal-fueled facilities alleging, among other things, violations of NSR PSD regulations relating to ten projects from 1986 to 1998 allegedly subject to review under the NSR. The EPA has alleged that some utilities have classified incorrectly major plant modifications as RMRR rather than seeking permits from the EPA or state regulatory agencies to modify their plants. Consumers responded to the information requests from the EPA on this subject in the past. Consumers believes that it has properly interpreted the requirements of RMRR.

Consumers is engaged in discussions with the EPA on all of these matters. Depending upon the outcome of these discussions, the EPA could bring legal action against Consumers and/or Consumers could be required to install additional pollution control equipment at some or all of its coal-fueled electric generating plants, surrender emission allowances, engage in Supplemental Environmental Projects, and/or pay fines. Additionally, Consumers would need to assess the viability of continuing operations at certain plants. The potential costs relating to these matters could be material and the extent of cost recovery cannot be reasonably estimated. Although Consumers cannot predict the financial impact or outcome of these matters, Consumers expects that it would be able to recover some or all of the costs in rates, consistent with the recovery of other reasonable costs of complying with environmental laws and regulations.

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Nuclear Matters: The matters discussed in this section relate to Consumers’ previously owned nuclear generating plants.

In 1997, a U.S. Court of Appeals decision confirmed that the DOE was to begin accepting deliveries of spent nuclear fuel for disposal by January 1998. Subsequent U.S. Court of Appeals litigation, in which Consumers and other utilities participated, had not been successful in producing more specific relief for the DOE’s failure to accept the spent nuclear fuel. A number of court decisions have supported the right of utilities to pursue damage claims in the U.S. Court of Claims against the DOE for failure to take delivery of spent nuclear fuel. Consumers filed a complaint in 2002.

In July 2011, Consumers entered into an agreement with the DOE to settle its claims for $120 million. In September 2011, Consumers filed an application with the MPSC regarding the regulatory treatment of the settlement amount. For further information, see Note 4: Regulatory Matters.

As part of the agreement with the DOE, Consumers settled its liability to the DOE to fund the disposal of spent nuclear fuel used at Palisades and Big Rock before 1983. This liability, which totaled $163 million, comprised $44 million collected from customers for spent nuclear fuel disposal fees and $119 million of interest accrued on those fees, and was to be paid no later than when the DOE began accepting delivery of spent nuclear fuel. CMS Energy and Consumers classified the liability as long-term debt on their consolidated balance sheets.

Following the settlement, Consumers terminated its letter of credit to Entergy, which Consumers had provided as security for its retained obligation to the DOE in connection with its sale of Palisades and the Big Rock ISFSI to Entergy in 2007.

In its November 2010 electric rate case order, the MPSC had directed Consumers to establish an independent trust fund for the amount payable to the DOE. Following its settlement with the DOE, Consumers petitioned the MPSC to relieve it of the obligation to fund the trust.

CONSUMERS GAS UTILITY CONTINGENCIES

Gas Environmental Matters: Consumers expects to incur remediation and other response activity costs at a number of sites under the NREPA. These sites include 23 former MGP facilities. Consumers operated the facilities on these sites for some part of their operating lives. For some of these sites, Consumers has no present ownership interest or may own only a portion of the original site.

At June 30, 2012, Consumers had a recorded liability of $128 million for its remaining obligations for these sites. This amount represents the present value of long-term projected costs, using a discount rate of 2.57 percent and an inflation rate of 2.5 percent. Consumers based the discount rate on the interest rate for 20-year U.S. Treasury securities at December 31, 2011. The undiscounted amount of the remaining obligation is $140 million. Consumers expects to incur remediation and other response activity costs during the remainder of 2012 and in each of the next four years as follows:

									In Millions
	2012		2013		2014		2015		2016
Consumers
Remediation and other response activity costs		$      10		$      11		$      11		$      20		$      11

Consumers periodically reviews these cost estimates. Any significant change in the underlying assumptions, such as an increase in the number of sites, changes in remediation techniques, or legal and regulatory requirements, could affect Consumers’ estimates of annual response activity costs and the MGP liability.

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Pursuant to orders issued by the MPSC, Consumers defers its MGP-related remediation costs and recovers them from its customers over a ten-year period. At June 30, 2012, Consumers had a regulatory asset of $154 million related to the MGP sites.

CONSUMERS OTHER CONTINGENCIES

Other Environmental Matters: Consumers is initiating preliminary investigations during 2012 at a number of potentially contaminated sites it presently owns with the intention of determining whether any contamination exists and the extent of any identified contamination. The sites to be investigated include combustion turbine sites, generating sites, compressor stations, and remote storage tanks. At June 30, 2012, evidence of contamination led Consumers to plan remedial investigations and certain interim response measures at some of these sites. The cost of these activities has been incorporated into Consumers’ estimated liability for NREPA sites. Consumers will continue its preliminary investigations at other potentially contaminated sites through the remainder of 2012. Consumers cannot predict an outcome at this stage of the investigations.

GUARANTEES

Presented in the following table are CMS Energy’s and Consumers’ guarantees at June 30, 2012:

								In Millions
Guarantee Description	Issue Date		Expiration Date		Maximum Obligation			Carrying Amount
CMS Energy, including Consumers
Indemnity obligations from asset sales and other agreements		Various		Various through September 2029		$       512	1		$      16
Guarantees and put options2		Various		Various through March 2021		60			1
Consumers
Indemnity obligations and other guarantees		Various		Various through September 2029		$      30			$      1

¹  The majority of this amount arises from stock and asset sale agreements under which CMS Energy or a subsidiary of CMS Energy, other than Consumers, indemnified the purchaser for losses resulting from various matters, including claims related to tax disputes, claims related to power purchase agreements, and defects in title to the assets or stock sold to the purchaser by CMS Energy subsidiaries. Except for items described elsewhere in this Note, CMS Energy believes the likelihood of material loss to be remote for the indemnity obligations not recorded as liabilities.

²  At June 30, 2012, the carrying amount of CMS Land’s put option agreements with certain Bay Harbor property owners was less than $1 million. If CMS Land is required to purchase a Bay Harbor property under a put option agreement, it may sell the property to recover the amount paid under the put option agreement.

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Presented in the following table is additional information regarding CMS Energy’s and Consumers’ guarantees:

Guarantee Description	How Guarantee Arose	Events That  Would Require Performance
CMS Energy, including Consumers
Indemnity obligations from asset	Stock and asset sale	Findings of misrepresentation,
sales and other agreements	agreements	breach of warranties, tax claims, and
		other specific events or
		circumstances
Guarantees	Normal operating	Nonperformance or non-payment by a
	activity	subsidiary under a related contract
Put options	Bay Harbor	Owners exercising put options requiring
	remediation efforts	CMS Land to purchase property
Consumers
Guarantees and indemnity	Normal operating	Nonperformance or claims made by third
obligations	activity	party under a related contract

CMS Energy, Consumers, and certain other subsidiaries of CMS Energy also enter into various agreements containing tax and other indemnity provisions for which they are unable to estimate the maximum potential obligation. These factors include unspecified exposure under certain agreements. CMS Energy and Consumers consider the likelihood that they would be required to perform or incur substantial losses related to these indemnities to be remote.

OTHER CONTINGENCIES

Other: In addition to the matters disclosed in this Note and Note 4: Regulatory Matters, there are certain other lawsuits and administrative proceedings before various courts and governmental agencies arising in the ordinary course of business to which CMS Energy, Consumers, and certain other subsidiaries of CMS Energy are parties. These other lawsuits and proceedings may involve personal injury, property damage, contracts, environmental matters, federal and state taxes, rates, licensing, employment, and other matters. Further, CMS Energy and Consumers occasionally self-report certain regulatory non-compliance matters that may or may not eventually result in administrative proceedings. CMS Energy and Consumers believe that the outcome of any one of these proceedings will not have a material adverse effect on their consolidated results of operations, financial condition, or liquidity.

4:     REGULATORY MATTERS

Rate matters are critical to Consumers. The Michigan Attorney General, ABATE, the MPSC Staff, and certain other parties typically participate in MPSC proceedings concerning Consumers and often appeal significant MPSC orders. Depending upon the specific issues, the outcomes of rate cases and proceedings, including judicial proceedings challenging MPSC orders or other actions, could have a material adverse effect on CMS Energy’s and Consumers’ liquidity, financial condition, and results of operations. Consumers cannot predict the outcome of these proceedings.

CONSUMERS’ ELECTRIC UTILITY

Electric Rate Case: In June 2011, Consumers filed an application with the MPSC seeking an annual rate increase of $195 million, based on a 10.7 percent authorized return on equity, in order to recover new investment in system reliability, environmental compliance, and technology enhancements. Consumers self-implemented an annual rate increase of $118 million in December 2011, subject to refund with

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interest. In June 2012, the MPSC authorized an annual rate increase of $118 million, based on a 10.3 percent return on equity. Consumers has until September 2012 to file a reconciliation of total revenues collected during self-implementation to those that would have been collected under final rates. While it cannot predict the outcome of this case, Consumers does not consider it probable that a refund of its self-implemented rates will be required.

The annual rate increase authorized by the MPSC included a $20 million increase in annual depreciation expense resulting from the new depreciation rates that the MPSC approved in June 2011 in Consumers’ electric depreciation case. These new depreciation rates went into effect with the June 2012 electric rate case order.

Also included in the authorized annual rate increase was the recovery of $14 million of development costs associated with Consumers’ proposed 830-MW coal-fueled plant. The MPSC authorized Consumers to recover these costs over a three-year period. Consumers canceled its plans to build this plant in December 2011, after having written off its development costs of $22 million in 2010. At June 30, 2012, Consumers recorded a $14 million regulatory asset for the recovery of these costs with a corresponding benefit recognized in earnings.

Big Rock Nuclear Decommissioning: The MPSC and FERC regulate the recovery of Consumers’ costs to decommission Big Rock. Subsequent to 2000, Consumers stopped funding a Big Rock decommissioning trust fund because the collection period for an MPSC-authorized decommissioning surcharge expired.

In 2010, the MPSC concluded that certain revenues collected during a statutory rate freeze from 2001 through 2003 should have been deposited in the Big Rock decommissioning trust fund and ordered Consumers to refund $85 million of revenue collected in excess of decommissioning costs plus interest. Consumers completed this refund in 2011. Consumers filed an appeal with the Michigan Court of Appeals in 2010 to dispute the MPSC’s conclusion that the collections received during the rate freeze should be subject to refund. In January 2012, the Michigan Court of Appeals rejected Consumers’ appeal. In March 2012, Consumers filed an appeal with the Michigan Supreme Court to dispute this decision. The Michigan Supreme Court denied Consumers’ appeal in June 2012.

Consumers has an $85 million regulatory asset recorded for $30 million it paid to Entergy to assume ownership responsibility for the Big Rock ISFSI and for $55 million of nuclear fuel storage costs it incurred as a result of the DOE’s failure to accept nuclear fuel. Consumers filed a complaint against the DOE in 2002 for this failure. In July 2011, Consumers entered into an agreement with the DOE to settle its claims for $120 million; Consumers recorded a $120 million regulatory liability related to this settlement. In September 2011, Consumers filed an application with the MPSC requesting authority to utilize $85 million of the settlement amount as recovery of its regulatory asset, and to refund to customers $23 million previously collected through rates for spent nuclear fuel costs. Various parties are opposing this request, seeking additional refunds, or seeking other relief. If the MPSC concludes that Consumers may retain any portion of the remaining $12 million of the settlement amount, Consumers will recognize that amount in earnings. For further information, see Note 3: Contingencies and Commitments – Consumers Electric Utility Contingencies – Nuclear Matters.

Electric Revenue Decoupling Mechanism: The MPSC’s 2009 electric rate case order authorized Consumers to implement an electric revenue decoupling mechanism, subject to certain conditions. This decoupling mechanism, which was extended through November 2011 in the 2010 electric rate case order, allowed Consumers to adjust future electric rates to compensate for changes in sales volumes resulting from the difference between the level of average sales per customer adopted in the order and actual average sales per customer. Various parties have filed appeals concerning Consumers’ electric revenue decoupling mechanism.

In March 2011, Consumers filed its first reconciliation of the electric revenue decoupling mechanism with the MPSC, requesting recovery of $27 million from customers for the period December 2009 through November 2010. In February 2012, the administrative law judge recommended that the MPSC approve Consumers’ reconciliation of the electric revenue decoupling mechanism for the full amount of its request. Consumers filed its second reconciliation of the electric revenue decoupling mechanism in March 2012, requesting recovery of $32 million from customers for the period December 2010 through November 2011.

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In April 2012, the Michigan Court of Appeals ruled in an appeal filed by ABATE that disputed the MPSC’s decision to authorize an electric revenue decoupling mechanism for Detroit Edison. The Court concluded that the MPSC lacks statutory authority to approve or direct the use of a revenue decoupling mechanism for electric providers. Consumers cannot predict whether this decision will be appealed to the Michigan Supreme Court or the timing or outcome of any such appeal. As a result, Consumers determined that it no longer met the accounting criteria for recognition of a regulatory asset under an alternative revenue program, and wrote off its $59 million electric revenue decoupling mechanism regulatory asset at March 31, 2012. Although the case before the Court of Appeals related specifically to Detroit Edison, Consumers will continue to pursue all of its legal and regulatory avenues to recover its decoupling revenues.

As a result of the Court of Appeals decision in the Detroit Edison case, the MPSC requested all interested parties to submit comments regarding the future use of electric revenue decoupling mechanisms in Michigan. In May 2012, Consumers filed its comments with the MPSC. Consumers is unable to predict the outcome of this matter.

Renewable Energy Plan: In June 2011, Consumers filed with the MPSC its second annual report and reconciliation for its renewable energy plan, requesting approval of its plan costs for 2010. In March 2012, the MPSC approved Consumers’ renewable energy plan reconciliation.

Consumers filed its third annual report and reconciliation with the MPSC in June 2012, requesting approval of its reconciliation of renewable energy plan costs for 2011.

In October 2011, Consumers filed an application for the biennial review and approval of its renewable energy plan. In May 2012, the MPSC approved Consumers’ settlement agreement in this case, reducing the renewable energy surcharge by an annual amount of $3 million, to $20 million.

Energy Optimization Plan: In August 2011, Consumers filed an amended energy optimization plan with the MPSC, requesting approval of the additional spending necessary to exceed the statutory savings targets for 2012 through 2015 specified in the 2008 Energy Law. The MPSC approved Consumers’ amended energy optimization plan in April 2012.

In May 2012, Consumers filed its third annual report and reconciliation for its energy optimization plan, requesting approval of Consumers’ reconciliation of energy optimization plan costs for 2011. Consumers also requested approval to collect $15 million from customers as an incentive payment for exceeding statutory savings targets under both its gas and electric energy optimization plans during 2011. Consumers estimates that, through its gas and electric energy optimization programs, its customers realized $115 million in energy savings during 2011.

CONSUMERS’ GAS UTILITY

Gas Rate Case: In September 2011, Consumers filed an application with the MPSC seeking an annual rate increase of $49 million, based on a 10.7 percent authorized return on equity, in order to recover investments made to enhance safety, system reliability, and operational efficiencies that improve service to customers. Consumers self-implemented an annual rate increase of $23 million in March 2012, subject to refund with interest.

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In June 2012, the MPSC approved Consumers’ settlement agreement and authorized an annual rate increase of $16 million, based on a 10.3 percent return on equity. The MPSC directed Consumers to refund to customers the difference between the rates it self-implemented in March 2012 and the rates authorized in the June 2012 order, plus interest, subject to a reconciliation proceeding. At June 30, 2012, CMS Energy and Consumers had a $1 million regulatory liability recorded for this refund.

Gas Revenue Decoupling Mechanism: The MPSC’s 2009 gas rate case order authorized Consumers to implement a gas revenue decoupling mechanism, subject to certain conditions. This decoupling mechanism, which was extended through April 2012, allowed Consumers to adjust future gas rates to compensate for changes in sales volumes resulting from the difference between the level of average sales per customer adopted in the order and actual average weather-adjusted sales per customer. This mechanism was not affected by the Court of Appeals decision on electric decoupling.

In September 2011, Consumers filed its first reconciliation of the gas revenue decoupling mechanism with the MPSC, requesting recovery of $16 million from customers for the period June 2010 through May 2011. The matter remains pending before the MPSC. Certain parties have filed in opposition to this reconciliation.

At June 30, 2012, Consumers had a $33 million non-current regulatory asset recorded for gas revenue decoupling. If the MPSC were to reject all or a major portion of Consumers’ requested recovery from its gas revenue decoupling mechanism or if the recovery period were to be substantially delayed, Consumers could be required to write off all or portions of the related regulatory asset.

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5:     FINANCINGS AND CAPITALIZATION

Presented in the following table is a summary of major long-term debt transactions during the six months ended June 30, 2012:

	Principal (In Millions)		Interest Rate			Issue/Retirement Date		Maturity Date
Debt Issuances
CMS Energy
Senior notes		$      300		5.05	%		March 2012		March 2022
Term loan facility1,2		30		variable			February 2012		December 2016
Consumers
FMB		375		2.85	%		May 2012		May 2022
Total		$      705
Debt Retirements
CMS Energy
Contingently convertible senior notes3		$      226		2.88	%		January 2012 and April 2012		December 2024
Trust Preferred Securities		29		7.75	%		February 2012		July 2027
Consumers
FMB		300		5.00	%		February 2012		February 2012
FMB		375		5.38	%		May 2012		April 2013
Total		$      930

¹  In December 2011, CMS Energy entered into a $180 million term loan credit agreement that provides for delayed draws through July 20, 2012. Outstanding borrowings bear interest at an annual interest rate of LIBOR plus 2.5 percent.

²  CMS Energy used these proceeds to retire the 7.75 percent Trust Preferred Securities.

³  CMS Energy’s contingently convertible notes. See the “Contingently Convertible Securities” section in this Note for further discussion of the conversions.

In May 2012, CMS Energy called for redemption its $150 million floating-rate senior notes due January 2013. The notes were redeemed in July 2012 using proceeds from the $180 million term loan facility entered into in December 2011.

In June 2012, Consumers entered into a short-term credit agreement permitting Consumers to borrow up to $375 million. Consumers borrowed $350 million under this agreement in July 2012. This facility will mature in March 2013.

In July 2012, Consumers executed a bond purchase agreement under which it will issue, in a December 2012 private placement, $52 million of 3.19 percent FMBs due 2024, $35 million of 3.39 percent FMBs due 2027, and $263 million of 4.31 percent FMBs due 2042.

Revolving Credit Facilities: The following secured revolving credit facilities with banks were available at June 30, 2012:

In Millions
Expiration Date	Amount of Facility		Amount Borrowed		Letters of Credit Outstanding		Amount Available
CMS Energy
March 31, 20161		$    550		$    25		$      2		$    523
Consumers
March 31, 20162		$    500		$       -		$      3		$    497
April 18, 20172		150		-		-		150
September 9, 20142		30		-		30		-

¹  Obligations under this facility are secured by Consumers common stock. CMS Energy’s average borrowings during the six months ended June 30, 2012 totaled $13 million, with a weighted-average annual interest rate of 2.27 percent, representing LIBOR plus 2.00 percent.

²  Obligations under this facility are secured by FMBs of Consumers.

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Short-term Borrowings: Under Consumers’ revolving accounts receivable sales program, Consumers may transfer up to $250 million of accounts receivable, subject to certain eligibility requirements. These transactions are accounted for as short-term secured borrowings. At June 30, 2012, $250 million of accounts receivable were eligible for transfer, and no accounts receivable had been transferred under the program. During the six months ended June 30, 2012, Consumers’ average short-term borrowings totaled $16 million, with a weighted average annual interest rate of 0.9 percent.

Contingently Convertible Securities: Presented in the following table are the significant terms of CMS Energy’s contingently convertible securities at June 30, 2012:

Security	Maturity		Outstanding (In Millions)			Adjusted Conversion Price		Adjusted Trigger Price
5.50% senior notes		2029		$	172		13.94		18.12

During 20 of the last 30 trading days ended June 30, 2012, the adjusted trigger-price contingencies were met for the contingently convertible senior notes, and as a result, the senior notes are convertible at the option of the note holders for the three months ending September 30, 2012.

Presented in the following table are details about conversions of contingently convertible securities during the six months ended June 30, 2012:

	Conversion Date		Principal Converted (In Millions)		Conversion Value per $1,000 of principal		Shares of Common Stock Issued on Settlement		Cash Paid on Settlement (In Millions)
2.875% senior notes due 2024		January 2012		$        73		$    1,738.99		2,464,138		$        73
		April 2012		153		1,774.98		5,381,349		153

Dividend Restrictions: Under provisions of CMS Energy’s senior notes indenture, at June 30, 2012, payment of common stock dividends by CMS Energy was limited to $1.3 billion.

Under the provisions of its articles of incorporation, at June 30, 2012, Consumers had $532 million of unrestricted retained earnings available to pay common stock dividends to CMS Energy. Provisions of the Federal Power Act and the Natural Gas Act appear to restrict dividends payable by Consumers to the amount of Consumers’ retained earnings. Several decisions from FERC suggest that under a variety of circumstances common stock dividends from Consumers would not be limited to amounts in Consumers’ retained earnings. Any decision by Consumers to pay common stock dividends in excess of retained earnings would be based on specific facts and circumstances and would result only after a formal regulatory filing process.

For the six months ended June 30, 2012, CMS Energy received $158 million of common stock dividends from Consumers.

Issuance of Common Stock: In June 2011, CMS Energy entered into a continuous equity offering program under which CMS Energy may sell, from time to time in “at the market” offerings, common stock having an aggregate sales price of up to $50 million. In June 2012, under this program, CMS Energy issued 650,235 shares of common stock at an average price of $23.07 per share, resulting in net proceeds of $15 million. In June 2011, under this program, CMS Energy issued 762,925 shares of common stock at an average price of $19.66 per share, resulting in net proceeds of $15 million.

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6:     EARNINGS PER SHARE – CMS ENERGY

Presented in the following table are CMS Energy’s basic and diluted EPS computations based on income from continuing operations:

In Millions, Except Per Share Amounts
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
Income Available to Common Stockholders
Income from continuing operations	$	101	$	101	$	161	$	234
Less income attributable to noncontrolling interest		1		1		1		1
Income from Continuing Operations Available to Common Stockholders – Basic and Diluted	$	100	$	100	$	160	$	233
Average Common Shares Outstanding
Weighted average shares – basic		261.2		250.3		258.4		250.2
Add dilutive contingently convertible securities		5.9		11.3		8.3		11.0
Add dilutive non-vested stock awards and options		1.1		0.3		1.0		0.3
Weighted average shares – diluted		268.2		261.9		267.7		261.5
Income from Continuing Operations per Average Common Share Available to Common Stockholders
Basic	$	0.38	$	0.40	$	0.61	$	0.93
Diluted		0.37		0.38		0.59		0.89

CONTINGENTLY CONVERTIBLE SECURITIES

When CMS Energy has earnings from continuing operations, its contingently convertible securities dilute EPS to the extent that the conversion value of a security, which is based on the average market price of CMS Energy common stock, exceeds the principal value of that security.

NON-VESTED STOCK AWARDS

CMS Energy’s non-vested stock awards are composed of participating and non-participating securities. The participating securities accrue cash dividends when common stockholders receive dividends. Since the recipient is not required to return the dividends to CMS Energy if the recipient forfeits the award, the non-vested stock awards are considered participating securities. As such, the participating non-vested stock awards were included in the computation of basic EPS. The non-participating securities accrue stock dividends that vest concurrently with the stock award. If the recipient forfeits the award, the stock dividends accrued on the non-participating securities are also forfeited. Accordingly, the non-participating awards and stock dividends were included in the computation of diluted EPS, but not basic EPS.

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CONVERTIBLE DEBENTURES

CMS Energy redeemed all of its outstanding 7.75 percent Trust Preferred Securities in February 2012. For the six-month period ended June 30, 2012 and for each of the three-month and six-month periods ended June 30, 2011, the Trust Preferred Securities would have increased diluted EPS had they been included in the calculation. Using the if-converted method, the debentures would have had the following impacts on the calculation of diluted EPS:

In Millions
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
Increase to numerator from assumed reduction in interest expense		$        -		$        -		$        -		$        1
Increase to denominator from assumed conversion of debentures into common shares		-		0.7		0.2		0.7

7:     FINANCIAL INSTRUMENTS

The carrying amounts of CMS Energy’s and Consumers’ cash, cash equivalents, current accounts and notes receivable, short-term investments, and current liabilities approximate their fair values because of their short-term nature. Presented in the following table are the cost or carrying amounts and fair values, by level within the fair value hierarchy, of CMS Energy’s and Consumers’ long-term financial instruments. For additional details regarding the fair value hierarchy, see Note 2: Fair Value Measurements.

In Millions
	June 30, 2012										December 31, 2011
	Cost or										Cost or
	Carrying		Fair Value								Carrying
	Amount		Total		Level 1		Level 2		Level 3		Amount		Fair Value
CMS Energy, including Consumers
Securities held to maturity	$	8	$	9	$	-	$	9	$	-	$	7	$	7
Securities available for sale		125		127		127		-		-		113		113
Notes receivable1		486		513		-		-		513		480		504
Long-term debt2		6,852		7,812		-		7,812		-		7,073		8,025
Consumers
Securities available for sale	$	90	$	116	$	116	$	-	$	-	$	81	$	109
Long-term debt3		4,007		4,625		-		4,625		-		4,326		4,882

¹  Includes current portion of notes receivable of $26 million at June 30, 2012 and $19 million at December 31, 2011.

²  Includes current portion of long-term debt of $631 million at June 30, 2012 and $1,033 million at December 31, 2011.

³  Includes current portion of long-term debt of $40 million at June 30, 2012 and $339 million at December 31, 2011.

Notes receivable consist of EnerBank’s fixed-rate installment loans. EnerBank estimates the fair value of these loans using a discounted cash flows technique that incorporates market interest rates as well as assumptions about the remaining life of the loans and credit risk.

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CMS Energy and Consumers estimate the fair value of their long-term debt using quoted prices from market trades of the debt, if available. In the absence of quoted prices, CMS Energy and Consumers calculate market yields and prices for the debt using a matrix method that incorporates market data for similarly rated debt. Depending on the information available, other valuation techniques may be used that rely on internal assumptions and models. CMS Energy includes the value of the conversion features in estimating the fair value of its convertible debt, and incorporates, as appropriate, information on the market prices of CMS Energy common stock.

The effects of third-party credit enhancements are excluded from the fair value measurements of long-term debt. At June 30, 2012 and December 31, 2011, CMS Energy’s long-term debt included $103 million principal amount that was supported by third-party credit enhancements. This entire principal amount was at Consumers.

Presented in the following table are CMS Energy’s and Consumers’ investment securities:

In Millions
	June 30, 2012								December 31, 2011
	Cost		Unrealized Gains		Unrealized Losses		Fair Value		Cost		Unrealized Gains		Unrealized Losses		Fair Value
CMS Energy, including Consumers
Available for sale
SERP
Mutual funds		$  125		$      2		$        -		$    127		$    113		$      -		$        -		$    113
Held to maturity
Debt securities		8		1		-		9		7		-		-		7
Consumers
Available for sale
SERP
Mutual funds		$    84		$      2		$        -		$      86		$      74		$      -		$        -		$      74
CMS Energy common stock		6		24		-		30		7		28		-		35

The mutual funds classified as available for sale hold primarily fixed-income instruments of varying maturities. During the six months ended June 30, 2012, CMS Energy contributed $13 million to the SERP, which included a contribution of $9 million by Consumers. The contributions were used to acquire additional shares in the mutual funds. Debt securities classified as held to maturity consist primarily of mortgage-backed securities held by EnerBank, as well as state and municipal bonds held by EnerBank.

Sales activity for CMS Energy’s and Consumers’ investment securities was insignificant for each of the three-month and six-month periods ended June 30, 2012 and 2011. In January 2012, based on a donation commitment made in 2011, Consumers transferred shares of CMS Energy common stock to a related charitable foundation and recognized a gain of $5 million in income to reflect the excess of fair value over cost of the stock donated. In January 2011, based on a donation commitment made in 2010, Consumers transferred shares of CMS Energy common stock to a related charitable foundation and recognized a gain of $4 million in income to reflect the excess of fair value over cost of the stock donated.

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8:     DERIVATIVE INSTRUMENTS

In order to limit exposure to certain market risks, primarily changes in commodity prices, interest rates, and foreign exchange rates, CMS Energy and Consumers may enter into various risk management contracts, such as forward contracts, futures, options, and swaps. The contracts used to manage market risks may qualify as derivative instruments. Neither CMS Energy nor Consumers enters into any derivatives for trading purposes.

Commodity Price Risk: In order to support ongoing operations, CMS Energy and Consumers enter into contracts for the future purchase and sale of various commodities, such as electricity, natural gas, and coal. These forward contracts are generally long-term in nature and result in physical delivery of the commodity at a contracted price. Most of these contracts are not subject to derivative accounting because:

• they do not have a notional amount (that is, a number of units specified in a derivative instrument, such as MWh of electricity or bcf of natural gas);

• they qualify for the normal purchases and sales exception; or

• there is not an active market for the commodity.

Consumers’ coal purchase contracts are not derivatives because there is not an active market for the coal it purchases. If an active market for coal develops in the future, some of these contracts may qualify as derivatives. Since Consumers is subject to regulatory accounting, the resulting fair value gains and losses would be deferred as regulatory assets or liabilities and would not affect net income.

Consumers also uses FTRs to manage price risk related to electricity transmission congestion. An FTR is a financial instrument that entitles its holder to receive compensation or requires its holder to remit payment for congestion-related transmission charges. FTRs are accounted for as derivatives. Under regulatory accounting, all changes in fair value associated with these instruments are deferred as regulatory assets or liabilities until the instruments are settled.

CMS ERM has not designated its contracts to purchase and sell electricity and natural gas as normal purchases and sales and, therefore, CMS Energy accounts for those contracts as derivatives.

The fair value of CMS Energy’s commodity contracts not designated as hedging instruments and recorded in other assets was $7 million at June 30, 2012 and $3 million at December 31, 2011. The fair value of Consumers’ commodity contracts not designated as hedging instruments and recorded in other assets was $5 million at June 30, 2012 and $2 million at December 31, 2011. The fair value of CMS Energy’s commodity contracts not designated as hedging instruments and recorded in other liabilities was $6 million at June 30, 2012 and $7 million at December 31, 2011. The fair value of Consumers’ commodity contracts not designated as hedging instruments and recorded in other liabilities was less than $1 million at June 30, 2012. Consumers did not have any contracts recorded as liabilities at December 31, 2011.

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Presented in the following table are the location and amount of the gains (losses) on derivatives recognized in CMS Energy’s consolidated statements of income for its derivatives not designated as hedging instruments:

In Millions
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
CMS Energy
Commodity contracts
Operating revenue		$    (1)		$    (1)		$    3		$    -
Fuel for electric generation		-		-		(2)		-
Purchased and interchange power		-		-		(1)		-
Total CMS Energy		$    (1)		$    (1)		$    -		$    -

Consumers’ gains on FTRs deferred as regulatory liabilities were $9 million for the three months ended June 30, 2012 and $7 million for the six months ended June 30, 2012. Consumers’ gains on FTRs deferred as regulatory liabilities were $2 million for the three and six months ended June 30, 2011.

CMS Energy’s derivative liabilities subject to credit-risk-related contingent features were $3 million at June 30, 2012 and $4 million at December 31, 2011.

9:     NOTES RECEIVABLE

Presented in the following table are details of CMS Energy’s and Consumers’ current and non-current notes receivable:

In Millions
	June 30, 2012		December 31, 2011
CMS Energy, including Consumers
Current
EnerBank notes receivable, net of allowance for loan losses		$      26		$      19
Other		14		30
Non-current
EnerBank notes receivable, net of allowance for loan losses		460		461
Other		1		1
Total notes receivable		$    501		$    511
Consumers
Current
Other		$      13		$      23
Non-current
Other		1		1
Total notes receivable		$      14		$      24

EnerBank notes receivable are unsecured consumer installment loans for financing home improvements.

The allowance for loan losses is a valuation allowance to reflect estimated credit losses. The allowance is increased by the provision for loan losses and decreased by loan charge-offs net of recoveries. Management estimates the allowance balance required by taking into consideration historical loan loss experience, the nature and volume of the portfolio, economic conditions, and other factors. Loan losses are charged against the allowance when the loss is confirmed, but no later than the point at which a loan becomes 120 days past due.

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Presented in the following table are the changes in the allowance for loan losses:

In Millions
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
Balance at beginning of period		$    5		$    5		$    5		$    5
Charge-offs		(1)		(1)		(2)		(2)
Recoveries		-		-		-		-
Provision for loan losses		1		1		2		2
Balance at end of period		$    5		$    5		$    5		$    5

Loans that are 30 days or more past due are considered delinquent. Presented in the following table is the delinquency status of EnerBank’s consumer loans:

In Millions
	Past Due 30-59 Days		Past Due 60-89 Days		Past Due Over 90 Days		Total Delinquent		Current		Total Outstanding
June 30, 2012		$      1		$      1		$      -		$      2		$    484		$    486
December 31, 2011		1		-		1		2		478		480

At June 30, 2012 and December 31, 2011, $1 million of EnerBank’s loans had been modified as troubled debt restructurings.

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10:  RETIREMENT BENEFITS

CMS Energy and Consumers provide pension, OPEB, and other retirement benefits to employees under a number of different plans.

Presented in the following tables are the costs and other changes in plan assets and benefit obligations incurred in CMS Energy’s and Consumers’ retirement benefits plans:

							In Millions
	Pension
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Net periodic pension cost
Service cost		$     12			$     12			$     24			$     24
Interest expense		25			25			50			50
Expected return on plan assets		(32	)		(28	)		(63	)		(56	)
Amortization of:
Net loss		19			15			38			31
Prior service cost		2			2			3			3
Net periodic pension cost		$     26			$     26			$     52			$     52
Consumers
Net periodic pension cost
Service cost		$     11			$     11			$     23			$     23
Interest expense		24			25			48			49
Expected return on plan assets		(31	)		(28	)		(61	)		(55	)
Amortization of:
Net loss		19			16			37			31
Prior service cost		2			2			3			3
Net periodic pension cost		$     25			$     26			$     50			$     51

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CMS Energy’s and Consumers’ expected long-term rate of return on Pension Plan assets is 7.75 percent. For the twelve months ended June 30, 2012, the actual return on Pension Plan assets was 4.7 percent, and for the twelve months ended June 30, 2011, the actual return was 19.5 percent. The expected rate of return is an assumption about long-term asset performance that CMS Energy and Consumers review annually for reasonableness and appropriateness.

							In Millions
	OPEB
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Net periodic OPEB cost
Service cost		$       8			$       6			$     16			$     13
Interest expense		20			19			41			38
Expected return on plan assets		(16	)		(16	)		(33	)		(33	)
Amortization of:
Net loss		12			8			23			16
Prior service credit		(5	)		(5	)		(10	)		(10	)
Net periodic OPEB cost		$     19			$     12			$     37			$     24
Consumers
Net periodic OPEB cost
Service cost		$       8			$       7			$     16			$     13
Interest expense		20			19			40			37
Expected return on plan assets		(16	)		(16	)		(31	)		(31	)
Amortization of:
Net loss		12			8			23			16
Prior service credit		(5	)		(5	)		(10	)		(10	)
Net periodic OPEB cost		$     19			$     13			$     38			$     25

11:  INCOME TAXES

Presented in the following table is a reconciliation of the statutory U.S. federal income tax rate to the effective income tax rate from continuing operations, excluding noncontrolling interests:

Six Months Ended June 30	2012			2011
CMS Energy, including Consumers
U.S. federal income tax rate		35.0	%		35.0	%
Increase (decrease) in income taxes from:
MCIT law change, net of federal expense		-			(9.9	)
Other state and local income taxes, net of federal benefit		4.7			3.5
Other, net		(0.2	)		(1.4	)
Effective income tax rate		39.5	%		27.2	%
Consumers
U.S. federal income tax rate		35.0	%		35.0	%
Increase (decrease) in income taxes from:
State and local income taxes, net of federal benefit		5.3			3.4
Other, net		(0.3	)		(1.4	)
Effective income tax rate		40.0	%		37.0	%

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In May 2012, the Internal Revenue Service completed its audit of CMS Energy and its subsidiaries for 2008 and 2009, as well as its audit of research and development tax credit claims for 2001 through 2009. The audits resulted in a $45 million increase in the net operating loss carryforward. The impact to net income as a result of the completion of the audits was $1 million.

12:  REPORTABLE SEGMENTS

Reportable segments consist of business units defined by the products and services they offer. CMS Energy and Consumers evaluate the performance of each segment based on its contribution to net income available to CMS Energy’s common stockholders. The reportable segments for CMS Energy and Consumers are:

CMS Energy:

• electric utility, consisting of regulated activities associated with the generation and distribution of electricity in Michigan;

• gas utility, consisting of regulated activities associated with the transportation, storage, and distribution of natural gas in Michigan;

• enterprises, consisting of various subsidiaries engaging primarily in domestic independent power production; and

• other, including EnerBank, corporate interest and other expenses, and discontinued operations.

Consumers:

• electric utility, consisting of regulated activities associated with the generation and distribution of electricity in Michigan;

• gas utility, consisting of regulated activities associated with the transportation, storage, and distribution of natural gas in Michigan; and

• other, including a consolidated special-purpose entity for the sale of accounts receivable.

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Presented in the following tables is financial information by reportable segment:

							In Millions
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Operating Revenue
Electric utility	$	998		$	949		$	1,834		$	1,846
Gas utility		284			354			1,123			1,445
Enterprises		38			50			92			105
Other		13			11			27			23
Total Operating Revenue – CMS Energy	$	1,333		$	1,364		$	3,076		$	3,419
Consumers
Operating Revenue
Electric utility	$	998		$	949		$	1,834		$	1,846
Gas utility		284			354			1,123			1,445
Total Operating Revenue – Consumers	$	1,282		$	1,303		$	2,957		$	3,291
CMS Energy, including Consumers
Net Income (Loss) Available to Common Stockholders
Electric utility	$	111		$	85		$	132		$	150
Gas utility		9			5			64			93
Enterprises		(1	)		29			4			32
Other		(19	)		(19	)		(33	)		(40	)
Total Net Income Available to Common Stockholders – CMS Energy	$	100		$	100		$	167		$	235
Consumers
Net Income Available to Common Stockholder
Electric utility	$	111		$	85		$	132		$	150
Gas utility		9			5			64			93
Other		1			1			1			1
Total Net Income Available to Common Stockholder – Consumers	$	121		$	91		$	197		$	244

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	In Millions
	June 30, 2012		December 31, 2011
CMS Energy, including Consumers
Plant, Property, and Equipment, Gross
Electric utility		$    10,549		$    10,400
Gas utility		4,261		4,206
Enterprises		112		109
Other		37		36
Total Plant, Property, and Equipment, Gross – CMS Energy		$    14,959		$    14,751
Consumers
Plant, Property, and Equipment, Gross
Electric utility		$    10,549		$    10,400
Gas utility		4,261		4,206
Other		15		15
Total Plant, Property, and Equipment, Gross – Consumers		$    14,825		$    14,621
CMS Energy, including Consumers
Total Assets
Electric utility1		$    10,157		$      9,938
Gas utility1		4,770		4,956
Enterprises		177		242
Other		1,189		1,316
Total Assets – CMS Energy		$    16,293		$    16,452
Consumers
Total Assets
Electric utility1		$    10,157		$      9,938
Gas utility1		4,770		4,956
Other		627		768
Total Assets – Consumers		$    15,554		$    15,662

¹ Amounts include a portion of Consumers’ other common assets attributable to both the electric and gas utility businesses.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT

MARKET RISK

There have been no material changes to market risk as previously disclosed in Part II – Item 7A. Quantitative and Qualitative Disclosures About Market Risk, in the 2011 Form 10-K.

ITEM 4. CONTROLS AND PROCEDURES

CMS ENERGY

Disclosure Controls and Procedures: CMS Energy’s management, with the participation of its CEO and CFO, has evaluated the effectiveness of its disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. Based on such evaluation, CMS Energy’s CEO and CFO have concluded that, as of the end of such period, its disclosure controls and procedures are effective.

Internal Control Over Financial Reporting: There have not been any changes in CMS Energy’s internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the last fiscal quarter that have materially affected, or are reasonably likely to materially affect, its internal control over financial reporting.

CONSUMERS

Disclosure Controls and Procedures: Consumers’ management, with the participation of its CEO and CFO, has evaluated the effectiveness of its disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. Based on such evaluation, Consumers’ CEO and CFO have concluded that, as of the end of such period, its disclosure controls and procedures are effective.

Internal Control Over Financial Reporting: There have not been any changes in Consumers’ internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the last fiscal quarter that have materially affected, or are reasonably likely to materially affect, its internal control over financial reporting.

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

CMS Energy and Consumers are parties to various lawsuits and regulatory matters in the ordinary course of business. For information regarding material legal proceedings, including updates to information reported under Part I – Item 3. Legal Proceedings, in the 2011 Form 10-K, see Part I – Item 1 – Note 3: Contingencies and Commitments, and Note 4: Regulatory Matters.

ITEM 1A. RISK FACTORS

There have been no material changes to the Risk Factors as previously disclosed in Part I – Item 1A. Risk Factors, in the 2011 Form 10-K.

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ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF

PROCEEDS

(a) Unregistered Sales of Equity Securities

Between April 19, 2012 and April 30, 2012, CMS Energy issued 2,514,373 shares of its common stock and paid $71,353,291 in cash in exchange for $71,353,000 aggregate principal amount of its 2.875 percent Convertible Senior Notes Due 2024. These convertible notes were tendered for conversion between March 30, 2012 and April 11, 2012, in accordance with the terms and provisions of the Indenture of CMS Energy dated as of September 15, 1992, as supplemented by the Seventeenth Supplemental Indenture dated as of December 13, 2004. Such shares of common stock were issued based on the weighted-average conversion value of $1,776.09 per $1,000 principal amount of convertible note. The issuance of these shares of common stock was an exchange of securities with existing shareholders and was exempt from registration pursuant to Section 3(a)(9) of the Securities Act of 1933, as amended.

(c) Issuer Repurchases of Equity Securities

Presented in the following table are CMS Energy’s repurchases of equity securities for the three months ended June 30, 2012:

Period	Total Number of Shares Purchased1		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs		Maximum Number of Shares that May Yet  Be Purchased Under Publicly Announced Plans or Programs
April 1, 2012 to April 30, 2012		-		$              -		-		-
May 1, 2012 to May 31, 2012		-		-		-		-
June 1, 2012 to June 30, 2012		700		23.50		-		-
Total		700		$      23.50		-		-

¹ Common shares were purchased to satisfy CMS Energy’s minimum statutory income tax withholding obligation for common

shares that have vested under the Performance Incentive Stock Plan. Shares repurchased have a value based on the market price on the vesting date.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

None.

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ITEM 6. EXHIBITS

The agreements included as exhibits to this Form 10-Q filing are included solely to provide information regarding the terms of the agreements and are not intended to provide any other factual or disclosure information about CMS Energy, Consumers, or other parties to the agreements. The agreements may contain representations and warranties made by each of the parties to each of the agreements that were made exclusively for the benefit of the parties involved in each of the agreements and should not be treated as statements of fact. The representations and warranties were made as a way to allocate risk if one or more of those statements prove to be incorrect. The statements were qualified by disclosures of the parties to each of the agreements that may not be reflected in each of the agreements. The agreements may apply standards of materiality that are different than standards applied to other investors. Additionally, the statements were made as of the date of the agreements or as specified in the agreements and have not been updated. The representations and warranties may not describe the actual state of affairs of the parties to each agreement.

Additional information about CMS Energy and Consumers may be found in this filing, at www.cmsenergy.com, at www.consumersenergy.com, and through the SEC’s website at www.sec.gov.

Exhibits		Description
4.1	—	117th Supplemental Indenture dated as of May 8, 2012 between Consumers and The Bank of New York Mellon, as Trustee (Exhibit 4.1 to Form 8-K filed May 8, 2012 and incorporated herein by reference)
4.2	—	118th Supplemental Indenture dated as of June 13, 2012 between Consumers and The Bank of New York Mellon, as Trustee (Exhibit 4.1 to Form 8-K filed June 19, 2012 and incorporated herein by reference)
10.1	—	$375,000,000 Term Loan Credit Agreement dated as of June 13, 2012 among Consumers, the financial institutions named therein and JPMorgan Chase Bank, N.A., as Agent (Exhibit 10.1 to Form 8-K filed June 19, 2012 and incorporated herein by reference)
10.2	—	Bond Purchase Agreement between Consumers and each of the Purchasers named therein, dated as of July 10, 2012 (Exhibit 10.1 to Form 8-K filed July 13, 2012 and incorporated herein by reference)
12.1	—	Statement regarding computation of CMS Energy’s Ratios of Earnings to Fixed Charges and Combined Fixed Charges and Preferred Dividends
12.2	—	Statement regarding computation of Consumers’ Ratios of Earnings to Fixed Charges and Combined Fixed Charges and Preferred Dividends
31.1	—	CMS Energy’s certification of the CEO pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	—	CMS Energy’s certification of the CFO pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.3	—	Consumers’ certification of the CEO pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.4	—	Consumers’ certification of the CFO pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1	—	CMS Energy’s certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2	—	Consumers’ certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS1	—	XBRL Instance Document
101.SCH1	—	XBRL Taxonomy Extension Schema
101.CAL1	—	XBRL Taxonomy Extension Calculation Linkbase
101.DEF1	—	XBRL Taxonomy Extension Definition Linkbase
101.LAB1	—	XBRL Taxonomy Extension Labels Linkbase
101.PRE1	—	XBRL Taxonomy Extension Presentation Linkbase

¹In accordance with Regulation S-T, the XBRL-related information in Exhibit 101 shall be deemed to be “furnished” and not

“filed.” The financial information contained in the XBRL-related information is “unaudited” and “unreviewed.”

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature for each undersigned company shall be deemed to relate only to matters having reference to such company or its subsidiary.

	CMS ENERGY CORPORATION (Registrant)
Dated:  July 26, 2012	By:	/s/    Thomas J. Webb
		Thomas J. Webb
		Executive Vice President and Chief Financial Officer
	CONSUMERS ENERGY COMPANY (Registrant)
Dated:  July 26, 2012	By:	/s/    Thomas J. Webb
		Thomas J. Webb
		Executive Vice President and Chief Financial Officer

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EXHIBITS

CMS ENERGY’S AND CONSUMERS’ EXHIBIT INDEX

Exhibits		Description
12.1	—	Statement regarding computation of CMS Energy’s Ratios of Earnings to Fixed Charges and Combined Fixed Charges and Preferred Dividends
12.2	—	Statement regarding computation of Consumers’ Ratios of Earnings to Fixed Charges and Combined Fixed Charges and Preferred Dividends
31.1	—	CMS Energy’s certification of the CEO pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	—	CMS Energy’s certification of the CFO pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.3	—	Consumers’ certification of the CEO pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.4	—	Consumers’ certification of the CFO pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1	—	CMS Energy’s certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2	—	Consumers’ certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS1	—	XBRL Instance Document
101.SCH1	—	XBRL Taxonomy Extension Schema
101.CAL1	—	XBRL Taxonomy Extension Calculation Linkbase
101.DEF1	—	XBRL Taxonomy Extension Definition Linkbase
101.LAB1	—	XBRL Taxonomy Extension Labels Linkbase
101.PRE1	—	XBRL Taxonomy Extension Presentation Linkbase

¹  In accordance with Regulation S-T, the XBRL-related information in Exhibit 101 shall be deemed to be “furnished” and not “filed.” The financial information contained in the XBRL-related information is “unaudited” and “unreviewed.”

EX-12.1

Exhibit 12.1

CMS ENERGY CORPORATION

Ratio of Earnings to Fixed Charges and Combined Fixed Charges and Preferred Dividends

In Millions, Except Ratios
	Six Months Ended			Year Ended December 31
	June 30, 2012			2011			2010			2009		2008			20071
Earnings as defined2
Pretax income from continuing operations	$	266		$	606		$	590		$	335	$	440		$	(317	)
Exclude equity basis subsidiaries		(3	)		(1	)		(2	)		2		(1	)		(22	)
Fixed charges as defined3		208			437			449			456		429			489
Earnings as defined3	$	471		$	1,042		$	1,037		$	793	$	868		$	150
Fixed charges as defined2
Interest on long-term debt	$	188		$	396		$	394		$	383	$	371		$	415
Estimated interest portion of lease rental		9			18			16			17		25			23
Other interest charges		12			25			42			58		35			53
Fixed charges as defined3	$	209		$	439		$	452		$	458	$	431		$	491
Preferred dividends		-			-			13			17		17			12
Combined fixed charges and preferred dividends	$	209		$	439		$	465		$	475	$	448		$	503
Ratio of earnings to fixed charges		2.25			2.37			2.29			1.73		2.01			-
Ratio of earnings to combined fixed charges and preferred dividends		2.25			2.37			2.23			1.67		1.94			-

NOTES:

¹  For the year ended December 31, 2007, fixed charges exceeded earnings by $341 million and combined fixed charges and preferred dividends exceeded earnings by $353 million. Earnings as defined include $204 million in asset impairment charges and a $279 million charge for an electric sales contract termination.

²  Earnings and fixed charges as defined in instructions for Item 503 of Regulation S-K.

³  Preferred dividends of a consolidated subsidiary are included in fixed charges, but excluded from earnings as defined because the amount was not deducted in arriving at pretax income from continuing operations.

EX-12.2

Exhibit 12.2

CONSUMERS ENERGY COMPANY

Ratio of Earnings to Fixed Charges and Combined Fixed Charges and Preferred Dividends

In Millions, Except Ratios
	Six Months Ended		Year Ended December 31
	June 30, 2012		2011		2010		2009		2008		2007
Earnings as defined1
Pretax income from continuing operations	$	330	$	734	$	688	$	456	$	562	$	437
Exclude equity basis subsidiaries		-		-		-		-		-		-
Fixed charges as defined		136		287		296		313		276		293
Earnings as defined	$	466	$	1,021	$	984	$	769	$	838	$	730
Fixed charges as defined1
Interest on long-term debt	$	119	$	251	$	246	$	250	$	229	$	236
Estimated interest portion of lease rental		9		18		16		17		25		23
Other interest charges		8		18		34		46		22		34
Fixed charges as defined	$	136	$	287	$	296	$	313	$	276	$	293
Preferred dividends		2		3		3		3		3		3
Combined fixed charges and preferred dividends	$	138	$	290	$	299	$	316	$	279	$	296
Ratio of earnings to fixed charges		3.43		3.56		3.32		2.46		3.04		2.49
Ratio of earnings to combined fixed charges and preferred dividends		3.38		3.52		3.29		2.43		3.00		2.47

NOTES:

¹  Earnings and fixed charges as defined in instructions for Item 503 of Regulation S-K.

EX-31.1

Exhibit 31.1

CERTIFICATION OF JOHN G. RUSSELL

I, John G. Russell, certify that:

1. I have reviewed this quarterly report on Form 10-Q of CMS Energy Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: July 26, 2012	By:	/s/ John G. Russell
		John G. Russell
		President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION OF THOMAS J. WEBB

I, Thomas J. Webb, certify that:

1. I have reviewed this quarterly report on Form 10-Q of CMS Energy Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: July 26, 2012	By:	/s/ Thomas J. Webb
		Thomas J. Webb
		Executive Vice President and Chief Financial Officer

EX-31.3

Exhibit 31.3

CERTIFICATION OF JOHN G. RUSSELL

I, John G. Russell, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Consumers Energy Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: July 26, 2012	By:	/s/ John G. Russell
		John G. Russell
		President and Chief Executive Officer

EX-31.4

Exhibit 31.4

CERTIFICATION OF THOMAS J. WEBB

I, Thomas J. Webb, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Consumers Energy Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: July 26, 2012	By:	/s/ Thomas J. Webb
		Thomas J. Webb
		Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

Certification of CEO and CFO Pursuant to

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10-Q of CMS Energy Corporation (the “Company”) for the quarterly period ended June 30, 2012 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), John G. Russell, as President and Chief Executive Officer of the Company, and Thomas J. Webb, as Executive Vice President and Chief Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ John G. Russell
Name:	John G. Russell
Title:	President and Chief Executive Officer
Date:	July 26, 2012
/s/ Thomas J. Webb
Name:	Thomas J. Webb
Title:	Executive Vice President and Chief Financial Officer
Date:	July 26, 2012

EX-32.2

Exhibit 32.2

Certification of CEO and CFO Pursuant to

18 U.S.C. Section 1350,

as Adopted Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report on Form 10-Q of Consumers Energy Company (the “Company”) for the quarterly period ended June 30, 2012 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), John G. Russell, as President and Chief Executive Officer of the Company, and Thomas J. Webb, as Executive Vice President and Chief Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ John G. Russell
Name:	John G. Russell
Title:	President and Chief Executive Officer
Date:	July 26, 2012
/s/ Thomas J. Webb
Name:	Thomas J. Webb
Title:	Executive Vice President and Chief Financial Officer
Date:	July 26, 2012

XML

Financings and Capitalization (Major Long-Term Debt Transactions) (Details) (USD $) In Millions, unless otherwise specified		6 Months Ended								6 Months Ended					1 Months Ended	6 Months Ended	1 Months Ended		6 Months Ended
	Jun. 30, 2012 Debt Issuances [Member]	Jun. 30, 2012 Debt Retirements [Member]	Jun. 30, 2012 First Mortgage Bonds 2.85% Due May 2022 [Member] Consumers Energy Company [Member]	Jun. 30, 2012 First Mortgage Bonds 5% Due February 2012 [Member] Consumers Energy Company [Member]	Jun. 30, 2012 First Mortgage Bonds 5.375% Due April 2013 [Member] Consumers Energy Company [Member]	Jul. 25, 2012 Bond Purchase Agreement [Member] First Mortgage Bonds 3.19% Due 2024 [Member] Consumers Energy Company [Member]	Jul. 25, 2012 Bond Purchase Agreement [Member] First Mortgage Bonds 3.39% Due 2027 [Member] Consumers Energy Company [Member]	Jul. 25, 2012 Bond Purchase Agreement [Member] First Mortgage Bonds 4.31% Due 2042 [Member] Consumers Energy Company [Member]	Dec. 31, 2011 Term Loan $180 Million [Member]	Jun. 30, 2012 Senior Notes 5.05% Due March 2022 [Member] Debt Issuances [Member]	Jun. 30, 2012 Term Loan Facility Due December 2016 [Member] Debt Issuances [Member]		Jun. 30, 2012 Senior Notes 2.875% Due December 2024 [Member] Debt Retirements [Member]		Jul. 25, 2012 Senior Notes Variable Rate Due January 2013 [Member] Repayment of Debt [Member]	Jun. 30, 2012 Senior Notes Variable Rate Due January 2013 [Member] Repayment of Debt [Member]	Jun. 30, 2012 Short Term Credit Agreement Due March Two Thousand Thirteen [Member] Consumers Energy Company [Member]	Jul. 25, 2012 Short Term Credit Agreement Due March Two Thousand Thirteen [Member] Debt Drawn [Member] Consumers Energy Company [Member]	Jun. 30, 2012 Trust Preferred Securities [Member] Debt Retirements [Member]
Debt Issuance, Principal	$ 705		$ 375			$ 52	$ 35	$ 263		$ 300	$ 30	[1],[2]
Interest Rate			2.85%	5.00%	5.38%	3.19%	3.39%	4.31%		5.05%			2.88%	[3]					7.75%
Debt Issuance Date			May 01, 2012							Mar. 01, 2012	Feb. 01, 2012	[1],[2]
Maturity Date			May 2022	February 2012	April 2013					March 2022	December 2016	[1],[2]	December 2024	[3]		January 2013	March 2013		July 2027
Debt Retirement, Principal		930		300	375								226	[3]	150				29
Debt Retirement Date				February 2012	May 2012								January 2012and April 2012	[3]					February 2012
Term loan credit agreement									180
LIBOR plus									2.50%
Amount of Facility																	375
Short Term Credit Agreement, Amount Drawn																		$ 350

[1] In December 2011, CMS Energy entered into a $180 million term loan credit agreement that provides for delayed draws through July 20, 2012. Outstanding borrowings bear interest at an annual interest rate of LIBOR plus 2.5 percent.

[2] CMS Energy used these proceeds to retire the 7.75 percent Trust Preferred Securities.

[3] CMS Energy's contingently convertible notes. See the "Contingently Convertible Securities" section in this Note for further discussion of the conversions.

XML

Retirement Benefits (Narrative) (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2012	Jun. 30, 2011
Expected long-term rate of return on pension plan assets	7.75%
Actual return on pension plan assets		4.70%	19.50%
Consumers Energy Company [Member]
Expected long-term rate of return on pension plan assets	7.75%
Actual return on pension plan assets		4.70%	19.50%

XML

Financial Instruments (Schedule of Investment Securities) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Available for sale - fair value	$ 127		$ 113
Held to maturity Debt securities - cost	8		7
Held to maturity Debt securities - unrealized gains	1
Held to maturity Debt securities - unrealized losses
Held to maturity Debt securities - fair value	9		7
Consumers Energy Company [Member]
Available for sale - fair value	116		109
CMS Energy Common Stock [Member] | Consumers Energy Company [Member]
Available for sale - cost	6		7
Available for sale - unrealized gains	24		28
Available for sale - unrealized losses
Available for sale - fair value	30		35
Gain on Donation of CMS Energy Common Stock	5	4
Supplemental Executive Retirement Plan [Member]
SERP Contributions	13
Supplemental Executive Retirement Plan [Member] | Consumers Energy Company [Member]
SERP Contributions	9
Supplemental Executive Retirement Plan [Member] | Mutual Fund [Member]
Available for sale - cost	125		113
Available for sale - unrealized gains	2
Available for sale - unrealized losses
Available for sale - fair value	127		113
Supplemental Executive Retirement Plan [Member] | Mutual Fund [Member] | Consumers Energy Company [Member]
Available for sale - cost	84		74
Available for sale - unrealized gains	2
Available for sale - unrealized losses
Available for sale - fair value	$ 86		$ 74

XML

Retirement Benefits (Schedule of Net Benefit Costs) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Pension Plans, Defined Benefit [Member]
Service cost	$ 12	$ 12	$ 24	$ 24
Interest expense	25	25	50	50
Expected return on plan assets	(32)	(28)	(63)	(56)
Amortization of Net loss	19	15	38	31
Amortization of Prior service cost	2	2	3	3
Net periodic cost	26	26	52	52
Pension Plans, Defined Benefit [Member] | Consumers Energy Company [Member]
Service cost	11	11	23	23
Interest expense	24	25	48	49
Expected return on plan assets	(31)	(28)	(61)	(55)
Amortization of Net loss	19	16	37	31
Amortization of Prior service cost	2	2	3	3
Net periodic cost	25	26	50	51
Other Postretirement Benefit Plans, Defined Benefit [Member]
Service cost	8	6	16	13
Interest expense	20	19	41	38
Expected return on plan assets	(16)	(16)	(33)	(33)
Amortization of Net loss	12	8	23	16
Amortization of Prior service cost	(5)	(5)	(10)	(10)
Net periodic cost	19	12	37	24
Other Postretirement Benefit Plans, Defined Benefit [Member] | Consumers Energy Company [Member]
Service cost	8	7	16	13
Interest expense	20	19	40	37
Expected return on plan assets	(16)	(16)	(31)	(31)
Amortization of Net loss	12	8	23	16
Amortization of Prior service cost	(5)	(5)	(10)	(10)
Net periodic cost	$ 19	$ 13	$ 38	$ 25

XML

Earnings Per Share - CMS Energy (Impact on the Calulation of EPS if Using the If-Converted Method) (Details) (Convertible Debt Securities [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Convertible Debt Securities [Member]
Debt Instrument, Interest Rate, Stated Percentage	7.75%	7.75%	7.75%	7.75%
Potential impact of antidilutive debentures - income				$ 1.0
Potential impact of antidilutive debentures - shares		0.7	0.2	0.7

XML

Reportable Segments (Tables)

6 Months Ended

Jun. 30, 2012

Reconciliation of Segments to Consolidated

							In Millions
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Operating Revenue
Electric utility	$	998		$	949		$	1,834		$	1,846
Gas utility		284			354			1,123			1,445
Enterprises		38			50			92			105
Other		13			11			27			23
Total Operating Revenue – CMS Energy	$	1,333		$	1,364		$	3,076		$	3,419
Consumers
Operating Revenue
Electric utility	$	998		$	949		$	1,834		$	1,846
Gas utility		284			354			1,123			1,445
Total Operating Revenue – Consumers	$	1,282		$	1,303		$	2,957		$	3,291
CMS Energy, including Consumers
Net Income (Loss) Available to Common Stockholders
Electric utility	$	111		$	85		$	132		$	150
Gas utility		9			5			64			93
Enterprises		(1	)		29			4			32
Other		(19	)		(19	)		(33	)		(40	)
Total Net Income Available to Common Stockholders – CMS Energy	$	100		$	100		$	167		$	235
Consumers
Net Income Available to Common Stockholder
Electric utility	$	111		$	85		$	132		$	150
Gas utility		9			5			64			93
Other		1			1			1			1
Total Net Income Available to Common Stockholder – Consumers	$	121		$	91		$	197		$	244

	In Millions
	June 30, 2012		December 31, 2011
CMS Energy, including Consumers
Plant, Property, and Equipment, Gross
Electric utility		$    10,549		$    10,400
Gas utility		4,261		4,206
Enterprises		112		109
Other		37		36
Total Plant, Property, and Equipment, Gross – CMS Energy		$    14,959		$    14,751
Consumers
Plant, Property, and Equipment, Gross
Electric utility		$    10,549		$    10,400
Gas utility		4,261		4,206
Other		15		15
Total Plant, Property, and Equipment, Gross – Consumers		$    14,825		$    14,621
CMS Energy, including Consumers
Total Assets
Electric utility1		$    10,157		$      9,938
Gas utility1		4,770		4,956
Enterprises		177		242
Other		1,189		1,316
Total Assets – CMS Energy		$    16,293		$    16,452
Consumers
Total Assets
Electric utility1		$    10,157		$      9,938
Gas utility1		4,770		4,956
Other		627		768
Total Assets – Consumers		$    15,554		$    15,662

¹ Amounts include a portion of Consumers' other common assets attributable to both the electric and gas utility businesses.

Consumers Energy Company [Member]

Reconciliation of Segments to Consolidated

							In Millions
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Operating Revenue
Electric utility	$	998		$	949		$	1,834		$	1,846
Gas utility		284			354			1,123			1,445
Enterprises		38			50			92			105
Other		13			11			27			23
Total Operating Revenue – CMS Energy	$	1,333		$	1,364		$	3,076		$	3,419
Consumers
Operating Revenue
Electric utility	$	998		$	949		$	1,834		$	1,846
Gas utility		284			354			1,123			1,445
Total Operating Revenue – Consumers	$	1,282		$	1,303		$	2,957		$	3,291
CMS Energy, including Consumers
Net Income (Loss) Available to Common Stockholders
Electric utility	$	111		$	85		$	132		$	150
Gas utility		9			5			64			93
Enterprises		(1	)		29			4			32
Other		(19	)		(19	)		(33	)		(40	)
Total Net Income Available to Common Stockholders – CMS Energy	$	100		$	100		$	167		$	235
Consumers
Net Income Available to Common Stockholder
Electric utility	$	111		$	85		$	132		$	150
Gas utility		9			5			64			93
Other		1			1			1			1
Total Net Income Available to Common Stockholder – Consumers	$	121		$	91		$	197		$	244

	In Millions
	June 30, 2012		December 31, 2011
CMS Energy, including Consumers
Plant, Property, and Equipment, Gross
Electric utility		$    10,549		$    10,400
Gas utility		4,261		4,206
Enterprises		112		109
Other		37		36
Total Plant, Property, and Equipment, Gross – CMS Energy		$    14,959		$    14,751
Consumers
Plant, Property, and Equipment, Gross
Electric utility		$    10,549		$    10,400
Gas utility		4,261		4,206
Other		15		15
Total Plant, Property, and Equipment, Gross – Consumers		$    14,825		$    14,621
CMS Energy, including Consumers
Total Assets
Electric utility1		$    10,157		$      9,938
Gas utility1		4,770		4,956
Enterprises		177		242
Other		1,189		1,316
Total Assets – CMS Energy		$    16,293		$    16,452
Consumers
Total Assets
Electric utility1		$    10,157		$      9,938
Gas utility1		4,770		4,956
Other		627		768
Total Assets – Consumers		$    15,554		$    15,662

¹ Amounts include a portion of Consumers' other common assets attributable to both the electric and gas utility businesses.

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Reportable Segments (Reconciliation of Revenue from Segments to Consolidated) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011	Jun. 30, 2012		Jun. 30, 2011	Dec. 31, 2011
Operating Revenue	$ 1,333		$ 1,364	$ 3,076		$ 3,419
Total Net Income Available to Common Stockholders	100		100	167		235
Total Plant, Property, and Equipment, Gross	14,959			14,959			14,751
Total Assets	16,293			16,293			16,452
Consumers Energy Company [Member]
Operating Revenue	1,282		1,303	2,957		3,291
Total Net Income Available to Common Stockholders	121		91	197		244
Total Plant, Property, and Equipment, Gross	14,825			14,825			14,621
Total Assets	15,554			15,554			15,662
Electric Utility [Member]
Operating Revenue	998		949	1,834		1,846
Total Net Income Available to Common Stockholders	111		85	132		150
Total Plant, Property, and Equipment, Gross	10,549			10,549			10,400
Total Assets	10,157	[1]		10,157	[1]		9,938	[1]
Electric Utility [Member] | Consumers Energy Company [Member]
Operating Revenue	998		949	1,834		1,846
Total Net Income Available to Common Stockholders	111		85	132		150
Total Plant, Property, and Equipment, Gross	10,549			10,549			10,400
Total Assets	10,157	[1]		10,157	[1]		9,938	[1]
Gas Utility [Member]
Operating Revenue	284		354	1,123		1,445
Total Net Income Available to Common Stockholders	9		5	64		93
Total Plant, Property, and Equipment, Gross	4,261			4,261			4,206
Total Assets	4,770	[1]		4,770	[1]		4,956	[1]
Gas Utility [Member] | Consumers Energy Company [Member]
Operating Revenue	284		354	1,123		1,445
Total Net Income Available to Common Stockholders	9		5	64		93
Total Plant, Property, and Equipment, Gross	4,261			4,261			4,206
Total Assets	4,770	[1]		4,770	[1]		4,956	[1]
Enterprises [Member]
Operating Revenue	38		50	92		105
Total Net Income Available to Common Stockholders	(1)		29	4		32
Total Plant, Property, and Equipment, Gross	112			112			109
Total Assets	177			177			242
Other [Member]
Operating Revenue	13		11	27		23
Total Net Income Available to Common Stockholders	(19)		(19)	(33)		(40)
Total Plant, Property, and Equipment, Gross	37			37			36
Total Assets	1,189			1,189			1,316
Other [Member] | Consumers Energy Company [Member]
Total Net Income Available to Common Stockholders	1		1	1		1
Total Plant, Property, and Equipment, Gross	15			15			15
Total Assets	$ 627			$ 627			$ 768

[1] 1 Amounts include a portion of Consumers' other common assets attributable to both the electric and gas utility businesses.

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Contingencies and Commitments (Tables)

6 Months Ended

Jun. 30, 2012

Guarantees

								In Millions
Guarantee Description	Issue Date		Expiration Date		Maximum Obligation			Carrying Amount
CMS Energy, including Consumers
Indemnity obligations from asset sales and other agreements		Various		Various through September 2029		$       512	1		$      16
Guarantees and put options2		Various		Various through March 2021		60			1
Consumers
Indemnity obligations and other guarantees		Various		Various through September 2029		$      30			$      1

¹  The majority of this amount arises from stock and asset sale agreements under which CMS Energy or a subsidiary of CMS Energy, other than Consumers, indemnified the purchaser for losses resulting from various matters, including claims related to tax disputes, claims related to power purchase agreements, and defects in title to the assets or stock sold to the purchaser by CMS Energy subsidiaries. Except for items described elsewhere in this Note, CMS Energy believes the likelihood of material loss to be remote for the indemnity obligations not recorded as liabilities.

²  At June 30, 2012, the carrying amount of CMS Land's put option agreements with certain Bay Harbor property owners was less than $1 million. If CMS Land is required to purchase a Bay Harbor property under a put option agreement, it may sell the property to recover the amount paid under the put option agreement.

Consumers Energy Company [Member]

Expected Remediation Cost By Year

									In Millions
	2012		2013		2014		2015		2016
Consumers
Remediation and other response activity costs		$      10		$      11		$      11		$      20		$      11

Guarantees

								In Millions
Guarantee Description	Issue Date		Expiration Date		Maximum Obligation			Carrying Amount
CMS Energy, including Consumers
Indemnity obligations from asset sales and other agreements		Various		Various through September 2029		$       512	1		$      16
Guarantees and put options2		Various		Various through March 2021		60			1
Consumers
Indemnity obligations and other guarantees		Various		Various through September 2029		$      30			$      1

¹  The majority of this amount arises from stock and asset sale agreements under which CMS Energy or a subsidiary of CMS Energy, other than Consumers, indemnified the purchaser for losses resulting from various matters, including claims related to tax disputes, claims related to power purchase agreements, and defects in title to the assets or stock sold to the purchaser by CMS Energy subsidiaries. Except for items described elsewhere in this Note, CMS Energy believes the likelihood of material loss to be remote for the indemnity obligations not recorded as liabilities.

²  At June 30, 2012, the carrying amount of CMS Land's put option agreements with certain Bay Harbor property owners was less than $1 million. If CMS Land is required to purchase a Bay Harbor property under a put option agreement, it may sell the property to recover the amount paid under the put option agreement.

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Derivative Instruments (Effect of Derivative Instruments on Consolidated Statements of Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Gain/(Loss) Recognized in Income on Derivative Instruments	$ (1)	$ (1)
Commodity Contracts [Member] | Operating Revenue [Member]
Gain/(Loss) Recognized in Income on Derivative Instruments	(1)	(1)	3
Commodity Contracts [Member] | Fuel for Electric Generation [Member]
Gain/(Loss) Recognized in Income on Derivative Instruments			(2)
Commodity Contracts [Member] | Purchased And Interchange Power [Member]
Gain/(Loss) Recognized in Income on Derivative Instruments			$ (1)

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Financings and Capitalization (Contingently Convertible Securities) (Details) (USD $)	6 Months Ended
	Jun. 30, 2012
Number of trading days, adjusted trigger price contingencies were met	20
Number of trading days	30
5.50% Senior Notes [Member]
Maturity Date	2029
Outstanding	$ 172,000,000
Adjusted Conversion Price	$ 13.94
Adjusted Trigger Price	$ 18.12
Senior Notes Interest Rate	5.50%
2.875% Convertible Senior Notes Due 2024 [Member]
Senior Notes Interest Rate	2.875%
Conversion Date	January 2012
Principal Converted	73,000,000
Conversion Value per share of principal	1,738.99
Common Stock Issued on Settlement	2,464,138
Cash Paid on Settlement	73,000,000
2.875% Senior Notes [Member]
Conversion Date	April 2012
Principal Converted	153,000,000
Conversion Value per share of principal	1,774.98
Common Stock Issued on Settlement	5,381,349
Cash Paid on Settlement	$ 153,000,000

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Contingencies and Commitments (Contractual Commitments) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Consumers Energy Company [Member]
Expiration Date	Various through September 2029
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 30
Carrying Amount	1
Guarantees and put options [Member]
Expiration Date	Various through March 2021
Guarantor Obligations, Maximum Exposure, Undiscounted	60	[1]
Carrying Amount	1	[1]
Indemnity obligations from asset sales and other agreements [Member]
Expiration Date	Various through September 2029
Guarantor Obligations, Maximum Exposure, Undiscounted	512	[2]
Carrying Amount	16
CMS Land [Member]
Carrying Amount	$ 1

[1] At June 30, 2012, the carrying amount of CMS Land's put option agreements with certain Bay Harbor property owners was less than $1 million. If CMS Land is required to purchase a Bay Harbor property under a put option agreement, it may sell the property to recover the amount paid under the put option agreement.

[2] The majority of this amount arises from stock and asset sale agreements under which CMS Energy or a subsidiary of CMS Energy, other than Consumers, indemnified the purchaser for losses resulting from various matters, including claims related to tax disputes, claims related to power purchase agreements, and defects in title to the assets or stock sold to the purchaser by CMS Energy subsidiaries. Except for items described elsewhere in this Note, CMS Energy believes the likelihood of material loss to be remote for the indemnity obligations not recorded as liabilities.

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Notes Receivable (Changes of Allowance for Loan Losses) (Details) (EnerBank USA [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
EnerBank USA [Member]
Allowance for loan losses, at beginning of period	$ 5	$ 5	$ 5	$ 5
Charge-offs	(1)	(1)	(2)	(2)
Recoveries
Provision for loan losses	1	1	2	2
Allowance for loan losses, at end of period	$ 5	$ 5	$ 5	$ 5

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Financial Instruments (Schedule of Cost of Carrying Amounts and Fair Value of Long-Term Financial Instruments) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011
Securities held to maturity, Cost or Carrying Amount	$ 8		$ 7
Securities held to maturity - fair value	9		7
Securities available for sale, Cost or Carrying Amount	125		113
Securities available for sale, fair value	127		113
Long-term debt, Cost or Carrying Amount	6,852	[1]	7,073	[1]
Long-term Debt, Fair Value	7,812	[1]	8,025	[1]
Notes receivable	40		49
Current portion of long-term debt	631		1,033
Portion of long-term debt supported by third-party credit enhancements	103		103
Consumers Energy Company [Member]
Securities available for sale, Cost or Carrying Amount	90		81
Securities available for sale, fair value	116		109
Long-term debt, Cost or Carrying Amount	4,007	[2]	4,326	[2]
Long-term Debt, Fair Value	4,625	[2]	4,882	[2]
Notes receivable	13		23
Current portion of long-term debt	40		339
Portion of long-term debt supported by third-party credit enhancements	103		103
EnerBank USA [Member]
Total unsecured consumer installment loans, net of an allowance for loan losses	486	[3]	480	[3]
Notes receivable, Fair Value	513	[3]	504	[3]
Notes receivable	26		19
Fair Value, Inputs, Level 1 [Member]
Securities available for sale, fair value	127
Fair Value, Inputs, Level 1 [Member] | Consumers Energy Company [Member]
Securities available for sale, fair value	116
Long-term Debt, Fair Value		[2]
Fair Value, Inputs, Level 2 [Member]
Securities held to maturity - fair value	9
Long-term Debt, Fair Value	7,812	[1]
Fair Value, Inputs, Level 2 [Member] | Consumers Energy Company [Member]
Securities available for sale, fair value
Long-term Debt, Fair Value	4,625	[2]
Fair Value, Inputs, Level 3 [Member] | Consumers Energy Company [Member]
Securities available for sale, fair value
Long-term Debt, Fair Value		[2]
Fair Value, Inputs, Level 3 [Member] | EnerBank USA [Member]
Notes receivable, Fair Value	$ 513	[3]

[1] Includes current portion of long-term debt of $631 million at June 30, 2012 and $1,033 million at December 31, 2011.

[2] Includes current portion of long-term debt of $40 million at June 30, 2012 and $339 million at December 31, 2011.

[3] Includes current portion of notes receivable of $26 million at June 30, 2012 and $19 million at December 31, 2011.

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Consolidated Statements of Changes in Equity (USD $) In Millions	Consumers Energy Company [Member] CMS Energy Common Stock [Member]	Consumers Energy Company [Member] Other Paid-in Capital [Member]	Consumers Energy Company [Member] Accumulated Other Comprehensive Income (Loss) [Member]	Consumers Energy Company [Member] Retirement benefits liability [Member]	Consumers Energy Company [Member] Investments [Member]	Consumers Energy Company [Member] Retained Earnings (Accumulated Deficit) [Member]	Consumers Energy Company [Member] Preferred Stock [Member]	Consumers Energy Company [Member]	CMS Energy Common Stock [Member]	Other Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retirement benefits liability [Member]	Investments [Member]	Derivative instruments [Member]	Retained Earnings (Accumulated Deficit) [Member]	Noncontrolling Interest [Member]	Total
Total Equity, beginning at Mar. 31, 2011	$ 841	$ 2,957	$ 0	$ (15)	$ 15	$ 512	$ 44	$ 4,354	$ 3	$ 4,599	$ (40)	$ (39)	$ 0	$ (1)	$ (1,675)	$ 44	$ 2,931
Common stock issued										22
Common stock reissued										0
Stockholders contribution		0
Income attributable to noncontrolling interests																1	1
Retirement benefits liability adjustments, net of tax												1					1
Unrealized gain (loss) on investments, net of tax					0								1				1
Net income						92		92							100		101
Common stock dividends declared						(92)									(53)
Preferred stock dividends declared						(1)
Distributions and other changes in noncontrolling interests																(1)
Total Equity, end at Jun. 30, 2011	841	2,957	0	(15)	15	511	44	4,353	3	4,621	(38)	(38)	1	(1)	(1,628)	44	3,002
Total Equity, beginning at Dec. 31, 2010	841	2,832	0	(16)	16	463	44	4,180	2	4,588	(40)	(39)	0	(1)	(1,757)	44	2,837
Common stock issued									1	28
Common stock reissued										5
Stockholders contribution		125						125
Income attributable to noncontrolling interests																1	1
Retirement benefits liability adjustments, net of tax				1				1				1					1
Unrealized gain (loss) on investments, net of tax					(1)			(1)					1				1
Net income						245		245							235		236
Common stock dividends declared						(196)									(106)
Preferred stock dividends declared						(1)
Distributions and other changes in noncontrolling interests																(1)
Total Equity, end at Jun. 30, 2011	841	2,957	0	(15)	15	511	44	4,353	3	4,621	(38)	(38)	1	(1)	(1,628)	44	3,002
Total Equity, beginning at Dec. 31, 2011	841	2,957	(2)	(19)	17	554	44	4,394	3	4,627	(49)	(48)	0	(1)	(1,553)	44	3,072
Common stock issued										31
Common stock reissued										6
Stockholders contribution		150						150
Income attributable to noncontrolling interests																1	1
Retirement benefits liability adjustments, net of tax				1				1				2					2
Unrealized gain (loss) on investments, net of tax					0								2				2
Net income						198		198							167		168
Common stock dividends declared						(158)									(125)
Preferred stock dividends declared						(1)
Distributions and other changes in noncontrolling interests																(1)
Total Equity, end at Jun. 30, 2012	841	3,107	(1)	(18)	17	593	44	4,584	3	4,664	(45)	(46)	2	(1)	(1,511)	44	3,155
Total Equity, beginning at Mar. 31, 2012	841	3,107	(4)	(18)	14	515	44	4,503	3	4,641	(47)	(47)	1	(1)	(1,548)	44	3,093
Common stock issued										23
Stockholders contribution		0
Income attributable to noncontrolling interests																1	1
Retirement benefits liability adjustments, net of tax												1					1
Unrealized gain (loss) on investments, net of tax					3			3					1				1
Net income						122		122							100		101
Common stock dividends declared						(43)									(63)
Preferred stock dividends declared						(1)
Distributions and other changes in noncontrolling interests																(1)
Total Equity, end at Jun. 30, 2012	$ 841	$ 3,107	$ (1)	$ (18)	$ 17	$ 593	$ 44	$ 4,584	$ 3	$ 4,664	$ (45)	$ (46)	$ 2	$ (1)	$ (1,511)	$ 44	$ 3,155

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Financings and Capitalization (Dividend Restrictions) (Details) (USD $)	6 Months Ended
	Jun. 30, 2012
Limitation on payment of stock dividends	$ 1,300,000,000
Common stock dividends from Consumers	158,000,000
Consumers Energy Company [Member]
Unrestricted retained earnings	$ 532,000,000

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Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2012

Derivative Instruments [Abstract]

Gain/(Loss) Recognized in Income for Derivative Instruments

In Millions
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
CMS Energy
Commodity contracts
Operating revenue		$    (1)		$    (1)		$    3		$    -
Fuel for electric generation		-		-		(2)		-
Purchased and interchange power		-		-		(1)		-
Total CMS Energy		$    (1)		$    (1)		$    -		$    -

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Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Cost/Carrying Amounts and Fair Values of Long-Term Financial Instruments

In Millions
	June 30, 2012										December 31, 2011
	Cost or										Cost or
	Carrying		Fair Value								Carrying
	Amount		Total		Level 1		Level 2		Level 3		Amount		Fair Value
CMS Energy, including Consumers
Securities held to maturity	$	8	$	9	$	-	$	9	$	-	$	7	$	7
Securities available for sale		125		127		127		-		-		113		113
Notes receivable1		486		513		-		-		513		480		504
Long-term debt2		6,852		7,812		-		7,812		-		7,073		8,025
Consumers
Securities available for sale	$	90	$	116	$	116	$	-	$	-	$	81	$	109
Long-term debt3		4,007		4,625		-		4,625		-		4,326		4,882

¹  Includes current portion of notes receivable of $26 million at June 30, 2012 and $19 million at December 31, 2011.

²  Includes current portion of long-term debt of $631 million at June 30, 2012 and $1,033 million at December 31, 2011.

³  Includes current portion of long-term debt of $40 million at June 30, 2012 and $339 million at December 31, 2011.

Schedule of Investment Securities

In Millions
	June 30, 2012								December 31, 2011
	Cost		Unrealized Gains		Unrealized Losses		Fair Value		Cost		Unrealized Gains		Unrealized Losses		Fair Value
CMS Energy, including Consumers
Available for sale
SERP
Mutual funds		$  125		$      2		$        -		$    127		$    113		$      -		$        -		$    113
Held to maturity
Debt securities		8		1		-		9		7		-		-		7
Consumers
Available for sale
SERP
Mutual funds		$    84		$      2		$        -		$      86		$      74		$      -		$        -		$      74
CMS Energy common stock		6		24		-		30		7		28		-		35

Consumers Energy Company [Member]

Schedule of Cost/Carrying Amounts and Fair Values of Long-Term Financial Instruments

In Millions
	June 30, 2012										December 31, 2011
	Cost or										Cost or
	Carrying		Fair Value								Carrying
	Amount		Total		Level 1		Level 2		Level 3		Amount		Fair Value
CMS Energy, including Consumers
Securities held to maturity	$	8	$	9	$	-	$	9	$	-	$	7	$	7
Securities available for sale		125		127		127		-		-		113		113
Notes receivable1		486		513		-		-		513		480		504
Long-term debt2		6,852		7,812		-		7,812		-		7,073		8,025
Consumers
Securities available for sale	$	90	$	116	$	116	$	-	$	-	$	81	$	109
Long-term debt3		4,007		4,625		-		4,625		-		4,326		4,882

¹  Includes current portion of notes receivable of $26 million at June 30, 2012 and $19 million at December 31, 2011.

²  Includes current portion of long-term debt of $631 million at June 30, 2012 and $1,033 million at December 31, 2011.

³  Includes current portion of long-term debt of $40 million at June 30, 2012 and $339 million at December 31, 2011.

Schedule of Investment Securities

In Millions
	June 30, 2012								December 31, 2011
	Cost		Unrealized Gains		Unrealized Losses		Fair Value		Cost		Unrealized Gains		Unrealized Losses		Fair Value
CMS Energy, including Consumers
Available for sale
SERP
Mutual funds		$  125		$      2		$        -		$    127		$    113		$      -		$        -		$    113
Held to maturity
Debt securities		8		1		-		9		7		-		-		7
Consumers
Available for sale
SERP
Mutual funds		$    84		$      2		$        -		$      86		$      74		$      -		$        -		$      74
CMS Energy common stock		6		24		-		30		7		28		-		35

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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
U.S. federal income tax rate			35.00%	35.00%
MCIT law change, net of federal benefit				(9.90%)
State and local income taxes, net of federal benefit			4.70%	3.50%
Other, net			(0.20%)	(1.40%)
Effective income tax rate			39.50%	27.20%
Net income	$ (101)	$ (101)	$ (168)	$ (236)
Consumers Energy Company [Member]
U.S. federal income tax rate			35.00%	35.00%
State and local income taxes, net of federal benefit			5.30%	3.40%
Other, net			(0.30%)	(1.40%)
Effective income tax rate			40.00%	37.00%
Net income	(122)	(92)	(198)	(245)
Internal Revenue Service (IRS) [Member]
Net operating loss carryforward	45		45
Net income			$ 1

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Financings and Capitalization (Issuance of Common Stock) (Details) (Continuous Equity Program [Member], USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Continuous Equity Program [Member]
Aggregate sales price of an equity offering program		$ 50
Shares of common stock issued	650,235	762,925
Per share value of common stock issued	$ 23.07	$ 19.66
Value of common stock issued	$ 15	$ 15

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Notes Receivable (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Current and Non-Current Notes Receivable

In Millions
	June 30, 2012		December 31, 2011
CMS Energy, including Consumers
Current
EnerBank notes receivable, net of allowance for loan losses		$      26		$      19
Other		14		30
Non-current
EnerBank notes receivable, net of allowance for loan losses		460		461
Other		1		1
Total notes receivable		$    501		$    511
Consumers
Current
Other		$      13		$      23
Non-current
Other		1		1
Total notes receivable		$      14		$      24

EnerBank USA [Member]

Schedule of Allowance for Loan Losses

In Millions
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
Balance at beginning of period		$    5		$    5		$    5		$    5
Charge-offs		(1)		(1)		(2)		(2)
Recoveries		-		-		-		-
Provision for loan losses		1		1		2		2
Balance at end of period		$    5		$    5		$    5		$    5

Schedule of Delinquency Status of EnerBank's Consumer Loans

In Millions
	Past Due 30-59 Days		Past Due 60-89 Days		Past Due Over 90 Days		Total Delinquent		Current		Total Outstanding
June 30, 2012		$      1		$      1		$      -		$      2		$    484		$    486
December 31, 2011		1		-		1		2		478		480

Consumers Energy Company [Member]

Schedule of Current and Non-Current Notes Receivable

In Millions
	June 30, 2012		December 31, 2011
CMS Energy, including Consumers
Current
EnerBank notes receivable, net of allowance for loan losses		$      26		$      19
Other		14		30
Non-current
EnerBank notes receivable, net of allowance for loan losses		460		461
Other		1		1
Total notes receivable		$    501		$    511
Consumers
Current
Other		$      13		$      23
Non-current
Other		1		1
Total notes receivable		$      14		$      24

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Retirement Benefits (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Net Benefit Costs

							In Millions
	Pension
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Net periodic pension cost
Service cost		$     12			$     12			$     23			$     24
Interest expense		25			25			50			50
Expected return on plan assets		(32	)		(28	)		(63	)		(56	)
Amortization of:
Net loss		19			15			37			31
Prior service cost		2			2			3			3
Net periodic pension cost		$     26			$     26			$     50			$     52
Consumers
Net periodic pension cost
Service cost		$     11			$     11			$     24			$     23
Interest expense		24			25			48			49
Expected return on plan assets		(31	)		(28	)		(61	)		(55	)
Amortization of:
Net loss		19			16			38			31
Prior service cost		2			2			3			3
Net periodic pension cost		$     25			$     26			$     52			$     51

							In Millions
	OPEB
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Net periodic OPEB cost
Service cost		$       8			$       6			$     16			$     13
Interest expense		20			19			41			38
Expected return on plan assets		(16	)		(16	)		(33	)		(33	)
Amortization of:
Net loss		12			8			23			16
Prior service credit		(5	)		(5	)		(10	)		(10	)
Net periodic OPEB cost		$     19			$     12			$     37			$     24
Consumers
Net periodic OPEB cost
Service cost		$       8			$       7			$     16			$     13
Interest expense		20			19			40			37
Expected return on plan assets		(16	)		(16	)		(31	)		(31	)
Amortization of:
Net loss		12			8			23			16
Prior service credit		(5	)		(5	)		(10	)		(10	)
Net periodic OPEB cost		$     19			$     13			$     38			$     25

Consumers Energy Company [Member]

Schedule of Net Benefit Costs

							In Millions
	Pension
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Net periodic pension cost
Service cost		$     12			$     12			$     23			$     24
Interest expense		25			25			50			50
Expected return on plan assets		(32	)		(28	)		(63	)		(56	)
Amortization of:
Net loss		19			15			37			31
Prior service cost		2			2			3			3
Net periodic pension cost		$     26			$     26			$     50			$     52
Consumers
Net periodic pension cost
Service cost		$     11			$     11			$     24			$     23
Interest expense		24			25			48			49
Expected return on plan assets		(31	)		(28	)		(61	)		(55	)
Amortization of:
Net loss		19			16			38			31
Prior service cost		2			2			3			3
Net periodic pension cost		$     25			$     26			$     52			$     51

							In Millions
	OPEB
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Net periodic OPEB cost
Service cost		$       8			$       6			$     16			$     13
Interest expense		20			19			41			38
Expected return on plan assets		(16	)		(16	)		(33	)		(33	)
Amortization of:
Net loss		12			8			23			16
Prior service credit		(5	)		(5	)		(10	)		(10	)
Net periodic OPEB cost		$     19			$     12			$     37			$     24
Consumers
Net periodic OPEB cost
Service cost		$       8			$       7			$     16			$     13
Interest expense		20			19			40			37
Expected return on plan assets		(16	)		(16	)		(31	)		(31	)
Amortization of:
Net loss		12			8			23			16
Prior service credit		(5	)		(5	)		(10	)		(10	)
Net periodic OPEB cost		$     19			$     13			$     38			$     25

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Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Allowances for doubtful accounts receivable	$ 35	$ 35
Allowances for doubtful notes receivable	5	5
Common stock, shares authorized	350.0	350.0
Common stock, shares outstanding	263.7	254.1
Consumers Energy Company [Member]
Allowances for doubtful accounts receivable	$ 33	$ 33
Common stock, shares authorized	125.0	125.0
Common stock, shares outstanding	84.1	84.1

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Income Taxes (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Effective Income Tax Rate Reconciliation

Six Months Ended June 30	2012			2011
CMS Energy, including Consumers
U.S. federal income tax rate		35.0	%		35.0	%
Increase (decrease) in income taxes from:
MCIT law change, net of federal expense		-			(9.9	)
Other state and local income taxes, net of federal benefit		4.7			3.5
Other, net		(0.2	)		(1.4	)
Effective income tax rate		39.5	%		27.2	%
Consumers
U.S. federal income tax rate		35.0	%		35.0	%
Increase (decrease) in income taxes from:
State and local income taxes, net of federal benefit		5.3			3.4
Other, net		(0.3	)		(1.4	)
Effective income tax rate		40.0	%		37.0	%

Consumers Energy Company [Member]

Schedule of Effective Income Tax Rate Reconciliation

Six Months Ended June 30	2012			2011
CMS Energy, including Consumers
U.S. federal income tax rate		35.0	%		35.0	%
Increase (decrease) in income taxes from:
MCIT law change, net of federal expense		-			(9.9	)
Other state and local income taxes, net of federal benefit		4.7			3.5
Other, net		(0.2	)		(1.4	)
Effective income tax rate		39.5	%		27.2	%
Consumers
U.S. federal income tax rate		35.0	%		35.0	%
Increase (decrease) in income taxes from:
State and local income taxes, net of federal benefit		5.3			3.4
Other, net		(0.3	)		(1.4	)
Effective income tax rate		40.0	%		37.0	%

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Financings and Capitalization (Revolving Credit Facilities) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Revolving Credit Facilities March 31, 2016 [Member]
Amount of Facility	$ 550	[1]
Amount Borrowed	25	[1]
Letters of Credit Outstanding	2	[1]
Amount Available	523	[1]
Average borrowings	13
Weighted average interest rate	2.27%
LIBOR plus	2.00%
Revolving Credit Facilities March 31, 2016 [Member] | Consumers Energy Company [Member]
Amount of Facility	500	[2]
Amount Borrowed		[2]
Letters of Credit Outstanding	3	[2]
Amount Available	497	[2]
Revolving Credit Facilities April 18, 2017 [Member] | Consumers Energy Company [Member]
Amount of Facility	150	[2]
Amount Borrowed		[2]
Amount Available	150	[2]
Revolving Credit Facilities September 9, 2014 [Member] | Consumers Energy Company [Member]
Amount of Facility	30	[2]
Amount Borrowed		[2]
Letters of Credit Outstanding	$ 30	[2]

[1] Obligations under this facility are secured by Consumers common stock. CMS Energy's average borrowings during the six months ended June 30, 2012 totaled $13 million, with a weighted-average annual interest rate of 2.27 percent, representing LIBOR plus 2.00 percent.

[2] Obligations under this facility are secured by FMBs of Consumers.

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Notes Receivable (Disclosure of Delinquency Status of EnerBank's Consumer Loans) (Details) (EnerBank USA [Member], USD $) In Millions, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011
EnerBank USA [Member]
Past Due 30-59 Days	$ 1		$ 1
Past Due 60-89 Days	1
Past Due Over 90 Days			1
Total Delinquent	2		2
Current	484		478
Total Outstanding	486	[1]	480	[1]
Loans modified as troubled debt restructurings	$ 1		$ 1

[1] Includes current portion of notes receivable of $26 million at June 30, 2012 and $19 million at December 31, 2011.

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Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Operating Revenue	$ 1,333	$ 1,364	$ 3,076	$ 3,419
Operating Expenses
Fuel for electric generation	126	153	256	305
Purchased and interchange power	334	303	651	603
Purchased power - related parties	20	20	42	41
Cost of gas sold	133	220	683	988
Maintenance and other operating expenses	282	288	577	567
Depreciation and amortization	130	122	302	284
General taxes	48	51	117	118
Total operating expenses	1,073	1,157	2,628	2,906
Operating Income	260	207	448	513
Other Income (Expense)
Interest income	1	2	2	4
Allowance for equity funds used during construction	2	2	4	3
Income (loss) from equity method investees	3	2	8	6
Other income	3	5	6	9
Other expense	(3)	(3)	(5)	(5)
Total other income	6	8	15	17
Interest Charges
Interest on long-term debt	94	99	188	199
Other interest expense	5	6	11	12
Allowance for borrowed funds used during construction	(1)	(1)	(2)	(2)
Total interest charges	98	104	197	209
Income Before Income Taxes	168	111	266	321
Income Tax Expense	67	10	105	87
Income from Continuing Operations	101	101	161	234
Income From Discontinued Operations, Net of Tax			7	2
Net Income	101	101	168	236
Income Attributable to Noncontrolling Interests	1	1	1	1
Net income available to common stockholders	100	100	167	235
Net Income Attributable to Common Stockholders
Amounts attributable to continuing operations	100	100	160	233
Amounts attributable to discontinued operations		0	7	2
Net income available to common stockholders	100	100	167	235
Income Attributable to Noncontrolling Interests
Amounts Attributable to Continuing Operations	1	1	1	1
Loss from Discontinued Operations		0		0
Income Attributable to Noncontrolling Interests	1	1	1	1
Basic Earnings Per Average Common Share
Basic earnings from continuing operations	$ 0.38	$ 0.40	$ 0.61	$ 0.93
Basic earnings from discontinued operations		$ 0.00	$ 0.03	$ 0.01
Basic earnings attributable to common stock	$ 0.38	$ 0.40	$ 0.64	$ 0.94
Diluted Earnings Per Average Common Share
Diluted earnings from continuing operations	$ 0.37	$ 0.38	$ 0.59	$ 0.89
Diluted earnings from discontinued operations		$ 0.00	$ 0.03	$ 0.01
Diluted earnings attributable to common stock	$ 0.37	$ 0.38	$ 0.62	$ 0.90
Dividends Declared Per Common Share	$ 0.24	$ 0.21	$ 0.48	$ 0.42
Consumers Energy Company [Member]
Operating Revenue	1,282	1,303	2,957	3,291
Operating Expenses
Fuel for electric generation	110	138	216	267
Purchased and interchange power	327	299	640	592
Purchased power - related parties	21	19	42	40
Cost of gas sold	124	197	660	950
Maintenance and other operating expenses	266	273	543	538
Depreciation and amortization	128	121	299	282
General taxes	46	49	114	115
Total operating expenses	1,022	1,096	2,514	2,784
Operating Income	260	207	443	507
Other Income (Expense)
Interest income	1	2	2	4
Allowance for equity funds used during construction	2	2	4	3
Other income	3	5	11	13
Other expense	(3)	(3)	(5)	(5)
Total other income	3	6	12	15
Interest Charges
Interest on long-term debt	58	63	119	126
Other interest expense	4	5	8	9
Allowance for borrowed funds used during construction	(1)	(1)	(2)	(2)
Total interest charges	61	67	125	133
Income Before Income Taxes	202	146	330	389
Income Tax Expense	80	54	132	144
Net Income	122	92	198	245
Preferred Stock Dividends	1	1	1	1
Net income available to common stockholders	121	91	197	244
Net Income Attributable to Common Stockholders
Net income available to common stockholders	$ 121	$ 91	$ 197	$ 244

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Earnings Per Share - CMS Energy (Basic and Diluted EPS Computation) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Earnings Per Share - CMS Energy [Abstract]
Income from Continuing Operations	$ 101	$ 101	$ 161	$ 234
Less Income Attributable to Noncontrolling Interest	1	1	1	1
Income from Continuing operations available to common stockholders basic and diluted	$ 100	$ 100	$ 160	$ 233
Weighted average shares basic	261.2	250.3	258.4	250.2
Add dilutive contingently convertible securities	5.9	11.3	8.3	11.0
Add dilutive Non vested awards and options	1.1	0.3	1.0	0.3
Weighted average shares - diluted	268.2	261.9	267.7	261.5
Basic	$ 0.38	$ 0.40	$ 0.61	$ 0.93
Diluted	$ 0.37	$ 0.38	$ 0.59	$ 0.89

XML

Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash Flows from Operating Activities
Net income	$ 168	$ 236
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	302	284
Deferred income taxes and investment tax credit	102	74
Postretirement benefits expense	94	83
Other non-cash operating activities	35	39
Postretirement benefits contributions	(37)	(39)
Changes in other assets and liabilities:
Decrease (increase) in accounts receivable, notes receivable, and accrued revenue	146	215
Decrease (increase) in accrued power supply revenue		15
Decrease (increase) in inventories	135	204
Increase (decrease) in accounts payable	10	34
Increase (decrease) in accrued expenses	(82)	(36)
Decrease (increase) in other current and non-current assets	100	71
Increase (decrease) in other current and non-current liabilities	(30)	36
Net cash provided by operating activities	943	1,216
Cash Flows from Investing Activities
Capital expenditures (excludes assets placed under capital lease)	(575)	(399)
Cost to retire property	(20)	(28)
Other investing activities	(15)	(44)
Net cash used in investing activities	(610)	(471)
Cash Flows from Financing Activities
Proceeds from issuance of long-term debt	790	375
Proceeds from EnerBank notes, net	(4)	21
Issuance of common stock	23	22
Retirement of long-term debt	(972)	(292)
Payment of common stock dividends	(125)	(106)
Payment of capital and finance lease obligations	(12)	(12)
Other financing costs	(7)	(8)
Net cash (used in) provided by financing activities	(307)	0
Net (Decrease) Increase in Cash and Cash Equivalents, Including Assets Held for Sale	26	745
Decrease (Increase) in Cash and Cash Equivalents Included in Assets Held for Sale	0	2
Net (Decrease) Increase in Cash and Cash Equivalents	26	747
Cash and Cash Equivalents, Beginning of Period	161	247
Cash and Cash Equivalents, End of Period	187	994
Consumers Energy Company [Member]
Cash Flows from Operating Activities
Net income	198	245
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	299	282
Deferred income taxes and investment tax credit	39	82
Postretirement benefits expense	92	78
Other non-cash operating activities	31	31
Postretirement benefits contributions	(34)	(37)
Changes in other assets and liabilities:
Decrease (increase) in accounts receivable, notes receivable, and accrued revenue	146	207
Decrease (increase) in accrued power supply revenue		15
Decrease (increase) in inventories	137	202
Increase (decrease) in accounts payable	11	42
Increase (decrease) in accrued expenses	(19)	(12)
Decrease (increase) in other current and non-current assets	103	68
Increase (decrease) in other current and non-current liabilities	10	42
Net cash provided by operating activities	1,013	1,245
Cash Flows from Investing Activities
Capital expenditures (excludes assets placed under capital lease)	(572)	(394)
Cost to retire property	(20)	(28)
Other investing activities	(9)	(23)
Net cash used in investing activities	(601)	(445)
Cash Flows from Financing Activities
Proceeds from issuance of long-term debt	375
Retirement of long-term debt	(694)	(18)
Payment of common stock dividends	(158)	(196)
Payment of preferred stock dividends	(1)	(1)
Stockholders contribution	150	125
Payment of capital and finance lease obligations	(12)	(12)
Other financing costs	(3)	(3)
Net cash (used in) provided by financing activities	(343)	(105)
Net (Decrease) Increase in Cash and Cash Equivalents	69	695
Cash and Cash Equivalents, Beginning of Period	85	71
Cash and Cash Equivalents, End of Period	$ 154	$ 766

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Fair Value Measurements (Assets and Liabilities Measured At Fair Value on a Recurring Basis using Significant Level 3 Inputs) (Details) (Fair Value, Inputs, Level 3 [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012		Jun. 30, 2011
Balance at beginning of period	$ (1)	$ (2)	$ (2)		$ (3)
Total gains included in earnings			2	[1]
Total gains offset through regulatory accounting	9	2	7		2
Purchases					1
Settlements	(5)		(4)
Balance at end of period	3		3
Unrealized gains included in earnings relating to assets and liabilities still held at end of period			2	[1]	1	[1]
Consumers Energy Company [Member]
Balance at beginning of period	1		2		1
Total gains offset through regulatory accounting	9	2	7		2
Purchases		1			1
Settlements	(5)		(4)		(1)
Balance at end of period	$ 5	$ 3	$ 5		$ 3

[1] 1 CMS Energy records realized and unrealized gains and losses for Level 3 recurring fair value measurements in earnings as a component of operating revenue or maintenance and other operating expenses on its consolidated statements of income.

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Reportable Segments

6 Months Ended

Jun. 30, 2012

Reportable Segments

12:  REPORTABLE SEGMENTS

Reportable segments consist of business units defined by the products and services they offer. CMS Energy and Consumers evaluate the performance of each segment based on its contribution to net income available to CMS Energy's common stockholders. The reportable segments for CMS Energy and Consumers are:

CMS Energy:

— electric utility, consisting of regulated activities associated with the generation and distribution of electricity in Michigan;

— gas utility, consisting of regulated activities associated with the transportation, storage, and distribution of natural gas in Michigan;

— enterprises, consisting of various subsidiaries engaging primarily in domestic independent power production; and

— other, including EnerBank, corporate interest and other expenses, and discontinued operations.

Consumers:

— electric utility, consisting of regulated activities associated with the generation and distribution of electricity in Michigan;

— gas utility, consisting of regulated activities associated with the transportation, storage, and distribution of natural gas in Michigan; and

— other, including a consolidated special-purpose entity for the sale of accounts receivable.

Presented in the following tables is financial information by reportable segment:

							In Millions
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Operating Revenue
Electric utility	$	998		$	949		$	1,834		$	1,846
Gas utility		284			354			1,123			1,445
Enterprises		38			50			92			105
Other		13			11			27			23
Total Operating Revenue – CMS Energy	$	1,333		$	1,364		$	3,076		$	3,419
Consumers
Operating Revenue
Electric utility	$	998		$	949		$	1,834		$	1,846
Gas utility		284			354			1,123			1,445
Total Operating Revenue – Consumers	$	1,282		$	1,303		$	2,957		$	3,291
CMS Energy, including Consumers
Net Income (Loss) Available to Common Stockholders
Electric utility	$	111		$	85		$	132		$	150
Gas utility		9			5			64			93
Enterprises		(1	)		29			4			32
Other		(19	)		(19	)		(33	)		(40	)
Total Net Income Available to Common Stockholders – CMS Energy	$	100		$	100		$	167		$	235
Consumers
Net Income Available to Common Stockholder
Electric utility	$	111		$	85		$	132		$	150
Gas utility		9			5			64			93
Other		1			1			1			1
Total Net Income Available to Common Stockholder – Consumers	$	121		$	91		$	197		$	244

	In Millions
	June 30, 2012		December 31, 2011
CMS Energy, including Consumers
Plant, Property, and Equipment, Gross
Electric utility		$    10,549		$    10,400
Gas utility		4,261		4,206
Enterprises		112		109
Other		37		36
Total Plant, Property, and Equipment, Gross – CMS Energy		$    14,959		$    14,751
Consumers
Plant, Property, and Equipment, Gross
Electric utility		$    10,549		$    10,400
Gas utility		4,261		4,206
Other		15		15
Total Plant, Property, and Equipment, Gross – Consumers		$    14,825		$    14,621
CMS Energy, including Consumers
Total Assets
Electric utility1		$    10,157		$      9,938
Gas utility1		4,770		4,956
Enterprises		177		242
Other		1,189		1,316
Total Assets – CMS Energy		$    16,293		$    16,452
Consumers
Total Assets
Electric utility1		$    10,157		$      9,938
Gas utility1		4,770		4,956
Other		627		768
Total Assets – Consumers		$    15,554		$    15,662

¹ Amounts include a portion of Consumers' other common assets attributable to both the electric and gas utility businesses.

Consumers Energy Company [Member]

Reportable Segments

12:  REPORTABLE SEGMENTS

Reportable segments consist of business units defined by the products and services they offer. CMS Energy and Consumers evaluate the performance of each segment based on its contribution to net income available to CMS Energy's common stockholders. The reportable segments for CMS Energy and Consumers are:

CMS Energy:

— electric utility, consisting of regulated activities associated with the generation and distribution of electricity in Michigan;

— gas utility, consisting of regulated activities associated with the transportation, storage, and distribution of natural gas in Michigan;

— enterprises, consisting of various subsidiaries engaging primarily in domestic independent power production; and

— other, including EnerBank, corporate interest and other expenses, and discontinued operations.

Consumers:

— electric utility, consisting of regulated activities associated with the generation and distribution of electricity in Michigan;

— gas utility, consisting of regulated activities associated with the transportation, storage, and distribution of natural gas in Michigan; and

— other, including a consolidated special-purpose entity for the sale of accounts receivable.

Presented in the following tables is financial information by reportable segment:

							In Millions
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Operating Revenue
Electric utility	$	998		$	949		$	1,834		$	1,846
Gas utility		284			354			1,123			1,445
Enterprises		38			50			92			105
Other		13			11			27			23
Total Operating Revenue – CMS Energy	$	1,333		$	1,364		$	3,076		$	3,419
Consumers
Operating Revenue
Electric utility	$	998		$	949		$	1,834		$	1,846
Gas utility		284			354			1,123			1,445
Total Operating Revenue – Consumers	$	1,282		$	1,303		$	2,957		$	3,291
CMS Energy, including Consumers
Net Income (Loss) Available to Common Stockholders
Electric utility	$	111		$	85		$	132		$	150
Gas utility		9			5			64			93
Enterprises		(1	)		29			4			32
Other		(19	)		(19	)		(33	)		(40	)
Total Net Income Available to Common Stockholders – CMS Energy	$	100		$	100		$	167		$	235
Consumers
Net Income Available to Common Stockholder
Electric utility	$	111		$	85		$	132		$	150
Gas utility		9			5			64			93
Other		1			1			1			1
Total Net Income Available to Common Stockholder – Consumers	$	121		$	91		$	197		$	244

	In Millions
	June 30, 2012		December 31, 2011
CMS Energy, including Consumers
Plant, Property, and Equipment, Gross
Electric utility		$    10,549		$    10,400
Gas utility		4,261		4,206
Enterprises		112		109
Other		37		36
Total Plant, Property, and Equipment, Gross – CMS Energy		$    14,959		$    14,751
Consumers
Plant, Property, and Equipment, Gross
Electric utility		$    10,549		$    10,400
Gas utility		4,261		4,206
Other		15		15
Total Plant, Property, and Equipment, Gross – Consumers		$    14,825		$    14,621
CMS Energy, including Consumers
Total Assets
Electric utility1		$    10,157		$      9,938
Gas utility1		4,770		4,956
Enterprises		177		242
Other		1,189		1,316
Total Assets – CMS Energy		$    16,293		$    16,452
Consumers
Total Assets
Electric utility1		$    10,157		$      9,938
Gas utility1		4,770		4,956
Other		627		768
Total Assets – Consumers		$    15,554		$    15,662

¹ Amounts include a portion of Consumers' other common assets attributable to both the electric and gas utility businesses.

XML

Contingencies and Commitments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended									1 Months Ended						3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Oct. 31, 2010	Dec. 31, 2004	Jun. 30, 2012 Consumers Energy Company [Member]	Dec. 31, 2011 Consumers Energy Company [Member]	Jun. 30, 2012 NREPA [Member] Consumers Energy Company [Member]	Jun. 30, 2012 Superfund Liability [Member] Consumers Energy Company [Member]	Jul. 31, 2011 Nuclear Fuel Disposal Cost [Member] Consumers Energy Company [Member]	Jun. 30, 2011 Nuclear Fuel Disposal Cost [Member] Consumers Energy Company [Member]	Jun. 30, 2011 Spent Nuclear Fuel Principal [Member] Consumers Energy Company [Member]	Jun. 30, 2011 Spent Nuclear Fuel Interest [Member] Consumers Energy Company [Member]	Jun. 30, 2012 Manufactured Gas Plant [Member] Consumers Energy Company [Member]	Jun. 30, 2012 Manufactured Gas Plant [Member] Consumers Energy Company [Member]	Mar. 31, 2012 Indemnification Expiration [Member]
Demand For Payment By USEPA				$ 7
Cumulative Environmental Charge	225
Recorded liability	68
Accrual for Environmental Loss Contingencies								4	2					128
Spent Nuclear Fuel Obligation, Noncurrent											163	44	119
Discounted projected costs rate	4.34%													2.57%
Site Contingency Accrual Inflation Rate	1.00%													2.50%
Remaining undiscounted obligation amount	89													140
Undiscounted amount due within one year	11													10
Undiscounted amount due within two year	8													11
Undiscounted amount due within third year	5													11
Undiscounted amount due within fourth year	4													20
Undiscounted amount due within five year	4													11
Foreign Government Tax Claim On Sale					142
After Tax Income in Discontinued Operations Recognized After Expiration of Tax Indemnification	7	2														7
Remediation and other response activity costs, minimum								4	2
Remediation and other response activity costs. maximum								7	8
Litigation Settlement, Gross										120
Regulatory assets, noncurrent	2,335		2,466			2,335	2,466							154
Regulatory Liability, Noncurrent	1,933		1,875			1,933	1,875
Number of former MGPs															23
Carrying Amounts						1
Maximum Obligation						$ 30

XML

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2012

Assets and Liabilities Measured at Fair Value on a Recurring Basis

In Millions
June 30, 2012	Total		Level 1		Level 2		Level 3
CMS Energy, including Consumers
Assets
Cash equivalents		$    141		$    141		$        -		$        -
Restricted cash equivalents		14		14		-		-
Nonqualified deferred compensation plan assets		5		5		-		-
SERP
Mutual funds		127		127		-		-
Derivative instruments
Commodity contracts		7		1		1		5
Total		$    294		$    288		$        1		$        5
Liabilities
Nonqualified deferred compensation plan liabilities		$        5		$        5		$        -		$        -
Derivative instruments
Commodity contracts		6		-		4		2
Total		$      11		$        5		$       4		$        2
Consumers
Assets
Cash equivalents		$    122		$    122		$        -		$        -
Restricted cash equivalents		14		14		-		-
CMS Energy common stock		30		30		-		-
Nonqualified deferred compensation plan assets		3		3		-		-
SERP
Mutual funds		86		86		-		-
Derivative instruments
Commodity contracts		5		-		-		5
Total		$    260		$    255		$        -		$        5
Liabilities
Nonqualified deferred compensation plan liabilities		$        3		$        3		$        -		$        -
Total		$        3		$        3		$        -		$        -

In Millions
December 31, 2011	Total		Level 1		Level 2		Level 3
CMS Energy, including Consumers
Assets
Cash equivalents	$	109	$	109	$	-	$	-
Restricted cash equivalents		15		15		-		-
Nonqualified deferred compensation plan assets		4		4		-		-
SERP
Cash equivalents		1		1		-		-
Mutual funds		113		113		-		-
Derivative instruments
Commodity contracts		3		1		-		2
Total	$	245	$	243	$	-	$	2
Liabilities
Nonqualified deferred compensation plan liabilities	$	4	$	4	$	-	$	-
Derivative instruments
Commodity contracts		7		-		3		4
Total	$	11	$	4	$	3	$	4
Consumers
Assets
Cash equivalents	$	56	$	56	$	-	$	-
Restricted cash equivalents		14		14		-		-
CMS Energy common stock		35		35		-		-
Nonqualified deferred compensation plan assets		3		3		-		-
SERP
Cash equivalents		1		1		-		-
Mutual funds		74		74		-		-
Derivative instruments
Commodity contracts		2		-		-		2
Total	$	185	$	183	$	-	$	2
Liabilities
Nonqualified deferred compensation plan liabilities	$	3	$	3	$	-	$	-
Total	$	3	$	3	$	-	$	-

Assets and Liabilities Measured at Fair Value on a Recurring Basis using Significant Level 3 Inputs

In Millions
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Balance at beginning of period		$       (1	)		$       (2	)		$       (2	)		$       (3	)
Total gains included in earnings1		-			-			2			-
Total gains offset through regulatory accounting		9			2			7			2
Purchases		-			-			-			1
Settlements		(5	)		-			(4	)		-
Balance at end of period		$        3			$         -			$        3			$         -
Unrealized gains included in earnings relating to assets and liabilities still held at end of period1		$         -			$         -			$        2			$        1
Consumers
Balance at beginning of period		$        1			$         -			$        2			$        1
Total gains offset through regulatory accounting		9			2			7			2
Purchases		-			1			-			1
Settlements		(5	)		-			(4	)		(1	)
Balance at end of period		$        5			$        3			$        5			$        3

¹ CMS Energy records realized and unrealized gains and losses for Level 3 recurring fair value measurements in earnings as a

component of operating revenue or maintenance and other operating expenses on its consolidated statements of income.

Consumers Energy Company [Member]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

In Millions
June 30, 2012	Total		Level 1		Level 2		Level 3
CMS Energy, including Consumers
Assets
Cash equivalents		$    141		$    141		$        -		$        -
Restricted cash equivalents		14		14		-		-
Nonqualified deferred compensation plan assets		5		5		-		-
SERP
Mutual funds		127		127		-		-
Derivative instruments
Commodity contracts		7		1		1		5
Total		$    294		$    288		$        1		$        5
Liabilities
Nonqualified deferred compensation plan liabilities		$5		$        5		$        -		$        -
Derivative instruments
Commodity contracts		6		-		4		2
Total		$      11		$        5		$       4		$        2
Consumers
Assets
Cash equivalents		$    122		$    122		$        -		$        -
Restricted cash equivalents		14		14		-		-
CMS Energy common stock		30		30		-		-
Nonqualified deferred compensation plan assets		3		3		-		-
SERP
Mutual funds		86		86		-		-
Derivative instruments
Commodity contracts		5		-		-		5
Total		$    260		$    255		$        -		$        5
Liabilities
Nonqualified deferred compensation plan liabilities		$        3		$        3		$        -		$        -
Total		$        3		$        3		$        -		$        -

In Millions
December 31, 2011	Total		Level 1		Level 2		Level 3
CMS Energy, including Consumers
Assets
Cash equivalents	$	109	$	109	$	-	$	-
Restricted cash equivalents		15		15		-		-
Nonqualified deferred compensation plan assets		4		4		-		-
SERP
Cash equivalents		1		1		-		-
Mutual funds		113		113		-		-
Derivative instruments
Commodity contracts		3		1		-		2
Total	$	245	$	243	$	-	$	2
Liabilities
Nonqualified deferred compensation plan liabilities	$	4	$	4	$	-	$	-
Derivative instruments
Commodity contracts		7		-		3		4
Total	$	11	$	4	$	3	$	4
Consumers
Assets
Cash equivalents	$	56	$	56	$	-	$	-
Restricted cash equivalents		14		14		-		-
CMS Energy common stock		35		35		-		-
Nonqualified deferred compensation plan assets		3		3		-		-
SERP
Cash equivalents		1		1		-		-
Mutual funds		74		74		-		-
Derivative instruments
Commodity contracts		2		-		-		2
Total	$	185	$	183	$	-	$	2
Liabilities
Nonqualified deferred compensation plan liabilities	$	3	$	3	$	-	$	-
Total	$	3	$	3	$	-	$	-

Assets and Liabilities Measured at Fair Value on a Recurring Basis using Significant Level 3 Inputs

In Millions
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Balance at beginning of period		$       (1	)		$       (2	)		$       (2	)		$       (3	)
Total gains included in earnings1		-			-			2			-
Total gains offset through regulatory accounting		9			2			7			2
Purchases		-			-			-			1
Settlements		(5	)		-			(4	)		-
Balance at end of period		$        3			$         -			$        3			$         -
Unrealized gains included in earnings relating to assets and liabilities still held at end of period1		$         -			$         -			$        2			$        1
Consumers
Balance at beginning of period		$        1			$         -			$        2			$        1
Total gains offset through regulatory accounting		9			2			7			2
Purchases		-			1			-			1
Settlements		(5	)		-			(4	)		(1	)
Balance at end of period		$        5			$        3			$        5			$        3

¹ CMS Energy records realized and unrealized gains and losses for Level 3 recurring fair value measurements in earnings as a

component of operating revenue or maintenance and other operating expenses on its consolidated statements of income.

XML

Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 187	$ 161
Restricted cash and cash equivalents	28	27
Accounts receivable and accrued revenue, less allowances	670	869
Notes receivable	40	49
Accounts receivable - related parties	10	10
Inventories at average cost
Gas in underground storage	760	929
Materials and supplies	96	92
Generating plant fuel stock	196	166
Deferred income taxes		24
Deferred property taxes	136	187
Regulatory assets	13	1
Prepayments and other current assets	70	50
Total current assets	2,206	2,565
Plant, Property, and Equipment
Plant, property, and equipment, gross	14,959	14,751
Less accumulated depreciation and amortization	4,973	4,901
Plant, property, and equipment, net	9,986	9,850
Construction work in progress	1,011	783
Total plant, property, and equipment	10,997	10,633
Other Non-current Assets
Regulatory assets, noncurrent	2,335	2,466
Accounts and notes receivable, less allowances	461	462
Investments	54	50
Other	240	276
Total other non-current assets	3,090	3,254
Total Assets	16,293	16,452
Liabilities and Equity
Current portion of long-term debt, capital and finance lease obligations	653	1,057
Accounts payable	527	575
Accounts payable - related parties	9	9
Accrued rate refunds	37	30
Accrued interest	96	101
Accrued taxes	199	282
Deferred income taxes	28
Regulatory Liability, Current	122	125
Other current liabilities	136	159
Total current liabilities	1,807	2,338
Non-current Liabilities
Long-term debt	6,221	6,040
Non-current portion of capital and finance lease obligations	157	167
Regulatory liabilities	1,933	1,875
Postretirement benefits	1,289	1,289
Asset retirement obligations	261	254
Deferred investment tax credit	44	46
Deferred income taxes	1,090	1,035
Other non-current liabilities	336	336
Total non-current liabilities	11,331	11,042
Commitments and Contingencies (Notes 3, 4, 5, 7, and 8)
Equity
Common stock	3	3
Other paid-in capital	4,664	4,627
Accumulated other comprehensive loss	(45)	(49)
Retained earnings (Accumulated deficit)	(1,511)	(1,553)
Total common stockholders equity	3,111	3,028
Noncontrolling interests	44	44
Total equity	3,155	3,072
Total Liabilities and Equity	16,293	16,452
Consumers Energy Company [Member]
Assets
Cash and cash equivalents	154	85
Restricted cash and cash equivalents	27	26
Accounts receivable and accrued revenue, less allowances	659	860
Notes receivable	13	23
Accounts receivable - related parties	1	1
Accrued power supply revenue		0
Inventories at average cost
Gas in underground storage	756	929
Materials and supplies	92	88
Generating plant fuel stock	196	164
Deferred property taxes	136	187
Regulatory assets	13	1
Prepayments and other current assets	63	43
Total current assets	2,110	2,407
Plant, Property, and Equipment
Plant, property, and equipment, gross	14,825	14,621
Less accumulated depreciation and amortization	4,915	4,846
Plant, property, and equipment, net	9,910	9,775
Construction work in progress	1,010	782
Total plant, property, and equipment	10,920	10,557
Other Non-current Assets
Regulatory assets, noncurrent	2,335	2,466
Accounts and notes receivable, less allowances	1	1
Investments	31	35
Other	157	196
Total other non-current assets	2,524	2,698
Total Assets	15,554	15,662
Liabilities and Equity
Current portion of long-term debt, capital and finance lease obligations	62	363
Accounts payable	512	561
Accounts payable - related parties	12	11
Accrued rate refunds	37	30
Accrued interest	65	73
Accrued taxes	271	287
Deferred income taxes	85	73
Regulatory Liability, Current	122	125
Other current liabilities	108	119
Total current liabilities	1,274	1,642
Non-current Liabilities
Long-term debt	3,967	3,987
Non-current portion of capital and finance lease obligations	157	167
Regulatory liabilities	1,933	1,875
Postretirement benefits	1,227	1,225
Asset retirement obligations	260	253
Deferred investment tax credit	44	46
Deferred income taxes	1,846	1,817
Other non-current liabilities	262	256
Total non-current liabilities	9,696	9,626
Commitments and Contingencies (Notes 3, 4, 5, 7, and 8)
Equity
Common stock	841	841
Other paid-in capital	3,107	2,957
Accumulated other comprehensive loss	(1)	(2)
Retained earnings (Accumulated deficit)	593	554
Total common stockholders equity	4,540	4,350
Preferred stock	44	44
Total equity	4,584	4,394
Total Liabilities and Equity	$ 15,554	$ 15,662

XML

Consolidated Statements of Income (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Consolidated Statements of Income
Tax Expense included in Income from Discontinued Operations			$ 4	$ 1

XML

Financial Instruments

6 Months Ended

Jun. 30, 2012

Financial Instruments

7:     FINANCIAL INSTRUMENTS

The carrying amounts of CMS Energy's and Consumers' cash, cash equivalents, current accounts and notes receivable, short-term investments, and current liabilities approximate their fair values because of their short-term nature. Presented in the following table are the cost or carrying amounts and fair values, by level within the fair value hierarchy, of CMS Energy's and Consumers' long-term financial instruments. For additional details regarding the fair value hierarchy, see Note 2: Fair Value Measurements.

In Millions
	June 30, 2012										December 31, 2011
	Cost or										Cost or
	Carrying		Fair Value								Carrying
	Amount		Total		Level 1		Level 2		Level 3		Amount		Fair Value
CMS Energy, including Consumers
Securities held to maturity	$	8	$	9	$	-	$	9	$	-	$	7	$	7
Securities available for sale		125		127		127		-		-		113		113
Notes receivable1		486		513		-		-		513		480		504
Long-term debt2		6,852		7,812		-		7,812		-		7,073		8,025
Consumers
Securities available for sale	$	90	$	116	$	116	$	-	$	-	$	81	$	109
Long-term debt3		4,007		4,625		-		4,625		-		4,326		4,882

¹  Includes current portion of notes receivable of $26 million at June 30, 2012 and $19 million at December 31, 2011.

²  Includes current portion of long-term debt of $631 million at June 30, 2012 and $1,033 million at December 31, 2011.

³  Includes current portion of long-term debt of $40 million at June 30, 2012 and $339 million at December 31, 2011.

Notes receivable consist of EnerBank's fixed-rate installment loans. EnerBank estimates the fair value of these loans using a discounted cash flows technique that incorporates market interest rates as well as assumptions about the remaining life of the loans and credit risk.

CMS Energy and Consumers estimate the fair value of their long-term debt using quoted prices from market trades of the debt, if available. In the absence of quoted prices, CMS Energy and Consumers calculate market yields and prices for the debt using a matrix method that incorporates market data for similarly rated debt. Depending on the information available, other valuation techniques may be used that rely on internal assumptions and models. CMS Energy includes the value of the conversion features in estimating the fair value of its convertible debt, and incorporates, as appropriate, information on the market prices of CMS Energy common stock.

The effects of third-party credit enhancements are excluded from the fair value measurements of long-term debt. At June 30, 2012 and December 31, 2011, CMS Energy's long-term debt included $103 million principal amount that was supported by third-party credit enhancements. This entire principal amount was at Consumers.

Presented in the following table are CMS Energy's and Consumers' investment securities:

In Millions
	June 30, 2012								December 31, 2011
	Cost		Unrealized Gains		Unrealized Losses		Fair Value		Cost		Unrealized Gains		Unrealized Losses		Fair Value
CMS Energy, including Consumers
Available for sale
SERP
Mutual funds		$  125		$      2		$        -		$    127		$    113		$      -		$        -		$    113
Held to maturity
Debt securities		8		1		-		9		7		-		-		7
Consumers
Available for sale
SERP
Mutual funds		$    84		$      2		$        -		$      86		$      74		$      -		$        -		$      74
CMS Energy common stock		6		24		-		30		7		28		-		35

The mutual funds classified as available for sale hold primarily fixed-income instruments of varying maturities. During the six months ended June 30, 2012, CMS Energy contributed $13 million to the SERP, which included a contribution of $9 million by Consumers. The contributions were used to acquire additional shares in the mutual funds. Debt securities classified as held to maturity consist primarily of mortgage-backed securities held by EnerBank, as well as state and municipal bonds held by EnerBank.

Sales activity for CMS Energy's and Consumers' investment securities was insignificant for each of the three-month and six-month periods ended June 30, 2012 and 2011. In January 2012, based on a donation commitment made in 2011, Consumers transferred shares of CMS Energy common stock to a related charitable foundation and recognized a gain of $5 million in income to reflect the excess of fair value over cost of the stock donated. In January 2011, based on a donation commitment made in 2010, Consumers transferred shares of CMS Energy common stock to a related charitable foundation and recognized a gain of $4 million in income to reflect the excess of fair value over cost of the stock donated.

Consumers Energy Company [Member]

Financial Instruments

7:     FINANCIAL INSTRUMENTS

The carrying amounts of CMS Energy's and Consumers' cash, cash equivalents, current accounts and notes receivable, short-term investments, and current liabilities approximate their fair values because of their short-term nature. Presented in the following table are the cost or carrying amounts and fair values, by level within the fair value hierarchy, of CMS Energy's and Consumers' long-term financial instruments. For additional details regarding the fair value hierarchy, see Note 2: Fair Value Measurements.

In Millions
	June 30, 2012										December 31, 2011
	Cost or										Cost or
	Carrying		Fair Value								Carrying
	Amount		Total		Level 1		Level 2		Level 3		Amount		Fair Value
CMS Energy, including Consumers
Securities held to maturity	$	8	$	9	$	-	$	9	$	-	$	7	$	7
Securities available for sale		125		127		127		-		-		113		113
Notes receivable1		486		513		-		-		513		480		504
Long-term debt2		6,852		7,812		-		7,812		-		7,073		8,025
Consumers
Securities available for sale	$	90	$	116	$	116	$	-	$	-	$	81	$	109
Long-term debt3		4,007		4,625		-		4,625		-		4,326		4,882

¹  Includes current portion of notes receivable of $26 million at June 30, 2012 and $19 million at December 31, 2011.

²  Includes current portion of long-term debt of $631 million at June 30, 2012 and $1,033 million at December 31, 2011.

³  Includes current portion of long-term debt of $40 million at June 30, 2012 and $339 million at December 31, 2011.

Notes receivable consist of EnerBank's fixed-rate installment loans. EnerBank estimates the fair value of these loans using a discounted cash flows technique that incorporates market interest rates as well as assumptions about the remaining life of the loans and credit risk.

CMS Energy and Consumers estimate the fair value of their long-term debt using quoted prices from market trades of the debt, if available. In the absence of quoted prices, CMS Energy and Consumers calculate market yields and prices for the debt using a matrix method that incorporates market data for similarly rated debt. Depending on the information available, other valuation techniques may be used that rely on internal assumptions and models. CMS Energy includes the value of the conversion features in estimating the fair value of its convertible debt, and incorporates, as appropriate, information on the market prices of CMS Energy common stock.

The effects of third-party credit enhancements are excluded from the fair value measurements of long-term debt. At June 30, 2012 and December 31, 2011, CMS Energy's long-term debt included $103 million principal amount that was supported by third-party credit enhancements. This entire principal amount was at Consumers.

Presented in the following table are CMS Energy's and Consumers' investment securities:

In Millions
	June 30, 2012								December 31, 2011
	Cost		Unrealized Gains		Unrealized Losses		Fair Value		Cost		Unrealized Gains		Unrealized Losses		Fair Value
CMS Energy, including Consumers
Available for sale
SERP
Mutual funds		$  125		$      2		$        -		$    127		$    113		$      -		$        -		$    113
Held to maturity
Debt securities		8		1		-		9		7		-		-		7
Consumers
Available for sale
SERP
Mutual funds		$    84		$      2		$        -		$      86		$      74		$      -		$        -		$      74
CMS Energy common stock		6		24		-		30		7		28		-		35

The mutual funds classified as available for sale hold primarily fixed-income instruments of varying maturities. During the six months ended June 30, 2012, CMS Energy contributed $13 million to the SERP, which included a contribution of $9 million by Consumers. The contributions were used to acquire additional shares in the mutual funds. Debt securities classified as held to maturity consist primarily of mortgage-backed securities held by EnerBank, as well as state and municipal bonds held by EnerBank.

Sales activity for CMS Energy's and Consumers' investment securities was insignificant for each of the three-month and six-month periods ended June 30, 2012 and 2011. In January 2012, based on a donation commitment made in 2011, Consumers transferred shares of CMS Energy common stock to a related charitable foundation and recognized a gain of $5 million in income to reflect the excess of fair value over cost of the stock donated. In January 2011, based on a donation commitment made in 2010, Consumers transferred shares of CMS Energy common stock to a related charitable foundation and recognized a gain of $4 million in income to reflect the excess of fair value over cost of the stock donated.

XML

Document & Entity Information	6 Months Ended
	Jun. 30, 2012	Jul. 13, 2012
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2012
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2012
Trading Symbol	cms
Entity Registrant Name	CMS Energy Corporation
Entity Central Index Key	0000811156
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
CMS Energy Corporation [Member]
Entity Common Stock, Shares Outstanding		264,986,880
Consumers Energy Company [Member]
Entity Registrant Name	Consumers Energy Company
Entity Central Index Key	0000201533
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		84,108,789

XML

Derivative Instruments

6 Months Ended

Jun. 30, 2012

Derivative Instruments

8:     DERIVATIVE INSTRUMENTS

In order to limit exposure to certain market risks, primarily changes in commodity prices, interest rates, and foreign exchange rates, CMS Energy and Consumers may enter into various risk management contracts, such as forward contracts, futures, options, and swaps. The contracts used to manage market risks may qualify as derivative instruments. Neither CMS Energy nor Consumers enters into any derivatives for trading purposes.

Commodity Price Risk: In order to support ongoing operations, CMS Energy and Consumers enter into contracts for the future purchase and sale of various commodities, such as electricity, natural gas, and coal. These forward contracts are generally long-term in nature and result in physical delivery of the commodity at a contracted price. Most of these contracts are not subject to derivative accounting because:

— they do not have a notional amount (that is, a number of units specified in a derivative instrument, such as MWh of electricity or bcf of natural gas);

— they qualify for the normal purchases and sales exception; or

— there is not an active market for the commodity.

Consumers' coal purchase contracts are not derivatives because there is not an active market for the coal it purchases. If an active market for coal develops in the future, some of these contracts may qualify as derivatives. Since Consumers is subject to regulatory accounting, the resulting fair value gains and losses would be deferred as regulatory assets or liabilities and would not affect net income.

Consumers also uses FTRs to manage price risk related to electricity transmission congestion. An FTR is a financial instrument that entitles its holder to receive compensation or requires its holder to remit payment for congestion-related transmission charges. FTRs are accounted for as derivatives. Under regulatory accounting, all changes in fair value associated with these instruments are deferred as regulatory assets or liabilities until the instruments are settled.

CMS ERM has not designated its contracts to purchase and sell electricity and natural gas as normal purchases and sales and, therefore, CMS Energy accounts for those contracts as derivatives.

The fair value of CMS Energy's commodity contracts not designated as hedging instruments and recorded in other assets was $7 million at June 30, 2012 and $3 million at December 31, 2011. The fair value of Consumers' commodity contracts not designated as hedging instruments and recorded in other assets was $5 million at June 30, 2012 and $2 million at December 31, 2011. The fair value of CMS Energy's commodity contracts not designated as hedging instruments and recorded in other liabilities was $6 million at June 30, 2012 and $7 million at December 31, 2011. The fair value of Consumers' commodity contracts not designated as hedging instruments and recorded in other liabilities was less than $1 million at June 30, 2012. Consumers did not have any contracts recorded as liabilities at December 31, 2011.

Presented in the following table are the location and amount of the gains (losses) on derivatives recognized in CMS Energy's consolidated statements of income for its derivatives not designated as hedging instruments:

In Millions
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
CMS Energy
Commodity contracts
Operating revenue		$    (1)		$    (1)		$    3		$    -
Fuel for electric generation		-		-		(2)		-
Purchased and interchange power		-		-		(1)		-
Total CMS Energy		$    (1)		$    (1)		$    -		$    -

Consumers' gains on FTRs deferred as regulatory liabilities were $9 million for the three months ended June 30, 2012 and $7 million for the six months ended June 30, 2012. Consumers' gains on FTRs deferred as regulatory liabilities were $2 million for the three and six months ended June 30, 2011.

CMS Energy's derivative liabilities subject to credit-risk-related contingent features were $3 million at June 30, 2012 and $4 million at December 31, 2011.

Consumers Energy Company [Member]

Derivative Instruments

8:     DERIVATIVE INSTRUMENTS

In order to limit exposure to certain market risks, primarily changes in commodity prices, interest rates, and foreign exchange rates, CMS Energy and Consumers may enter into various risk management contracts, such as forward contracts, futures, options, and swaps. The contracts used to manage market risks may qualify as derivative instruments. Neither CMS Energy nor Consumers enters into any derivatives for trading purposes.

Commodity Price Risk: In order to support ongoing operations, CMS Energy and Consumers enter into contracts for the future purchase and sale of various commodities, such as electricity, natural gas, and coal. These forward contracts are generally long-term in nature and result in physical delivery of the commodity at a contracted price. Most of these contracts are not subject to derivative accounting because:

— they do not have a notional amount (that is, a number of units specified in a derivative instrument, such as MWh of electricity or bcf of natural gas);

— they qualify for the normal purchases and sales exception; or

— there is not an active market for the commodity.

Consumers' coal purchase contracts are not derivatives because there is not an active market for the coal it purchases. If an active market for coal develops in the future, some of these contracts may qualify as derivatives. Since Consumers is subject to regulatory accounting, the resulting fair value gains and losses would be deferred as regulatory assets or liabilities and would not affect net income.

Consumers also uses FTRs to manage price risk related to electricity transmission congestion. An FTR is a financial instrument that entitles its holder to receive compensation or requires its holder to remit payment for congestion-related transmission charges. FTRs are accounted for as derivatives. Under regulatory accounting, all changes in fair value associated with these instruments are deferred as regulatory assets or liabilities until the instruments are settled.

CMS ERM has not designated its contracts to purchase and sell electricity and natural gas as normal purchases and sales and, therefore, CMS Energy accounts for those contracts as derivatives.

The fair value of CMS Energy's commodity contracts not designated as hedging instruments and recorded in other assets was $7 million at June 30, 2012 and $3 million at December 31, 2011. The fair value of Consumers' commodity contracts not designated as hedging instruments and recorded in other assets was $5 million at June 30, 2012 and $2 million at December 31, 2011. The fair value of CMS Energy's commodity contracts not designated as hedging instruments and recorded in other liabilities was $6 million at June 30, 2012 and $7 million at December 31, 2011. The fair value of Consumers' commodity contracts not designated as hedging instruments and recorded in other liabilities was less than $1 million at June 30, 2012. Consumers did not have any contracts recorded as liabilities at December 31, 2011.

Presented in the following table are the location and amount of the gains (losses) on derivatives recognized in CMS Energy's consolidated statements of income for its derivatives not designated as hedging instruments:

In Millions
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
CMS Energy
Commodity contracts
Operating revenue		$    (1)		$    (1)		$    3		$    -
Fuel for electric generation		-		-		(2)		-
Purchased and interchange power		-		-		(1)		-
Total CMS Energy		$    (1)		$    (1)		$    -		$    -

Consumers' gains on FTRs deferred as regulatory liabilities were $9 million for the three months ended June 30, 2012 and $7 million for the six months ended June 30, 2012. Consumers' gains on FTRs deferred as regulatory liabilities were $2 million for the three and six months ended June 30, 2011.

CMS Energy's derivative liabilities subject to credit-risk-related contingent features were $3 million at June 30, 2012 and $4 million at December 31, 2011.

XML

Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income	$ 101	$ 101	$ 168	$ 236
Income Attributable to Noncontrolling Interests	1	1	1	1
Net income available to common stockholders	100	100	167	235
Retirement benefits liability adjustments	1	1	2	1
Unrealized gain (loss) on investments, net of tax	1	1	2	1
Other Comprehensive Income	2	2	4	2
Total Comprehensive Income	102	102	171	237
Consumers Energy Company [Member]
Net income	122	92	198	245
Net income available to common stockholders	121	91	197	244
Retirement benefits liability adjustments			1	1
Unrealized gain (loss) on investments, net of tax	3			(1)
Other Comprehensive Income	3	0	1	0
Total Comprehensive Income	$ 125	$ 92	$ 199	$ 245

XML

Fair Value Measurements

6 Months Ended

Jun. 30, 2012

Fair Value Measurements

2:     FAIR VALUE MEASUREMENTS

Accounting standards define fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. When measuring fair value, CMS Energy and Consumers are required to incorporate all assumptions that market participants would use in pricing an asset or liability, including assumptions about risk. A fair value hierarchy prioritizes inputs used to measure fair value according to their observability in the market. The three levels of the fair value hierarchy are as follows:

— Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities.

— Level 2 inputs are observable, market-based inputs, other than Level 1 prices. Level 2 inputs may include quoted prices for similar assets or liabilities in active markets, quoted prices in inactive markets, interest rates and yield curves observable at commonly quoted intervals, forward prices, credit risks, default rates, and inputs derived from or corroborated by observable market data.

— Level 3 inputs are unobservable inputs that reflect CMS Energy's or Consumers' own assumptions about how market participants would value their assets and liabilities.

To the extent possible, CMS Energy and Consumers use quoted market prices or other observable market pricing data in valuing assets and liabilities measured at fair value. If this information is unavailable, they use market-corroborated data or reasonable estimates about market participant assumptions. CMS Energy and Consumers classify fair value measurements within the fair value hierarchy based on the lowest level of input that is significant to the fair value measurement in its entirety.

ASSETS AND LIABILITIES MEASURED AT FAIR VALUE ON A RECURRING BASIS

Presented in the following tables are CMS Energy's and Consumers' assets and liabilities, by level within the fair value hierarchy, reported at fair value on a recurring basis:

In Millions
June 30, 2012	Total		Level 1		Level 2		Level 3
CMS Energy, including Consumers
Assets
Cash equivalents		$    141		$    141		$        -		$        -
Restricted cash equivalents		14		14		-		-
Nonqualified deferred compensation plan assets		5		5		-		-
SERP
Mutual funds		127		127		-		-
Derivative instruments
Commodity contracts		7		1		1		5
Total		$    294		$    288		$        1		$        5
Liabilities
Nonqualified deferred compensation plan liabilities		$        5		$        5		$        -		$        -
Derivative instruments
Commodity contracts		6		-		4		2
Total		$      11		$        5		$       4		$        2
Consumers
Assets
Cash equivalents		$    122		$    122		$        -		$        -
Restricted cash equivalents		14		14		-		-
CMS Energy common stock		30		30		-		-
Nonqualified deferred compensation plan assets		3		3		-		-
SERP
Mutual funds		86		86		-		-
Derivative instruments
Commodity contracts		5		-		-		5
Total		$    260		$    255		$        -		$        5
Liabilities
Nonqualified deferred compensation plan liabilities		$        3		$        3		$        -		$        -
Total		$        3		$        3		$        -		$        -

In Millions
December 31, 2011	Total		Level 1		Level 2		Level 3
CMS Energy, including Consumers
Assets
Cash equivalents	$	109	$	109	$	-	$	-
Restricted cash equivalents		15		15		-		-
Nonqualified deferred compensation plan assets		4		4		-		-
SERP
Cash equivalents		1		1		-		-
Mutual funds		113		113		-		-
Derivative instruments
Commodity contracts		3		1		-		2
Total	$	245	$	243	$	-	$	2
Liabilities
Nonqualified deferred compensation plan liabilities	$	4	$	4	$	-	$	-
Derivative instruments
Commodity contracts		7		-		3		4
Total	$	11	$	4	$	3	$	4
Consumers
Assets
Cash equivalents	$	56	$	56	$	-	$	-
Restricted cash equivalents		14		14		-		-
CMS Energy common stock		35		35		-		-
Nonqualified deferred compensation plan assets		3		3		-		-
SERP
Cash equivalents		1		1		-		-
Mutual funds		74		74		-		-
Derivative instruments
Commodity contracts		2		-		-		2
Total	$	185	$	183	$	-	$	2
Liabilities
Nonqualified deferred compensation plan liabilities	$	3	$	3	$	-	$	-
Total	$	3	$	3	$	-	$	-

Cash Equivalents: Cash equivalents and restricted cash equivalents consist of money market funds with daily liquidity.

Nonqualified Deferred Compensation Plan Assets: The nonqualified deferred compensation plan assets consist of various mutual funds that are valued using a market approach. CMS Energy and Consumers value these assets using the daily quoted net asset values that are the basis for transactions to buy or sell shares in each fund. CMS Energy and Consumers report these assets in other non-current assets on their consolidated balance sheets.

SERP Assets: CMS Energy and Consumers value their SERP assets using a market approach, incorporating prices and other relevant information from market transactions. The SERP invests in mutual funds that hold primarily fixed-income instruments of varying maturities. In order to meet their investment objectives, the funds hold investment-grade debt securities, and may invest a portion of their assets in high-yield securities, foreign debt, and derivative instruments. CMS Energy and Consumers value these funds using the daily quoted net asset values that are the basis for transactions to buy or sell shares in each fund. The SERP cash equivalents at December 31, 2011 consisted of a money market fund with daily liquidity. CMS Energy and Consumers report their SERP assets in other non-current assets on their consolidated balance sheets. For additional details about SERP securities, see Note 7: Financial Instruments.

Nonqualified Deferred Compensation Plan Liabilities: CMS Energy and Consumers value their nonqualified deferred compensation plan liabilities based on the fair values of the plan assets, as they reflect what is owed to the plan participants in accordance with their investment elections. CMS Energy and Consumers report these liabilities in other non-current liabilities on their consolidated balance sheets.

Derivative Instruments: CMS Energy and Consumers value their derivative instruments using either a market approach that incorporates information from market transactions, or an income approach that discounts future expected cash flows to a present value amount. CMS Energy has exchange-traded derivative contracts that are valued based on Level 1 quoted prices, as well as derivatives valued using Level 2 inputs, including commodity forward prices, interest rates, credit ratings, default rates, and market-based seasonality factors. CMS Energy and Consumers have classified certain derivatives as Level 3 since the fair value measurements incorporate assumptions that cannot be observed or confirmed through market transactions.

The most significant derivatives classified as Level 3 are a power option sold by CMS ERM and FTRs held by Consumers. The power option sold by CMS ERM is valued using unobservable assumptions about price volatility and the pricing differential between the delivery point and the nearest active market. Due to the lack of quoted pricing information, Consumers determines the fair value of its FTRs based on Consumers' average historical settlements. Under regulatory accounting, all changes in fair value associated with FTRs are deferred as regulatory assets or liabilities until the instruments are settled. In valuing their derivative instruments not classified as Level 1, CMS Energy and Consumers may incorporate adjustments for credit risk, or the risk of nonperformance, as deemed appropriate. CMS Energy and Consumers apply credit risk adjustments, where appropriate, to the net receivable from or payable to each counterparty. For additional details about derivative contracts, see Note 8: Derivative Instruments.

ASSETS AND LIABILITIES MEASURED AT FAIR VALUE ON A RECURRING BASIS USING SIGNIFICANT LEVEL 3 INPUTS

Presented in the following tables are reconciliations of changes in the fair values of Level 3 assets and liabilities at CMS Energy and Consumers:

In Millions
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Balance at beginning of period		$       (1	)		$       (2	)		$       (2	)		$       (3	)
Total gains included in earnings1		-			-			2			-
Total gains offset through regulatory accounting		9			2			7			2
Purchases		-			-			-			1
Settlements		(5	)		-			(4	)		-
Balance at end of period		$        3			$         -			$        3			$         -
Unrealized gains included in earnings relating to assets and liabilities still held at end of period1		$         -			$         -			$        2			$        1
Consumers
Balance at beginning of period		$        1			$         -			$        2			$        1
Total gains offset through regulatory accounting		9			2			7			2
Purchases		-			1			-			1
Settlements		(5	)		-			(4	)		(1	)
Balance at end of period		$        5			$        3			$        5			$        3

¹ CMS Energy records realized and unrealized gains and losses for Level 3 recurring fair value measurements in earnings as a

component of operating revenue or maintenance and other operating expenses on its consolidated statements of income.

Consumers Energy Company [Member]

Fair Value Measurements

2:     FAIR VALUE MEASUREMENTS

Accounting standards define fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. When measuring fair value, CMS Energy and Consumers are required to incorporate all assumptions that market participants would use in pricing an asset or liability, including assumptions about risk. A fair value hierarchy prioritizes inputs used to measure fair value according to their observability in the market. The three levels of the fair value hierarchy are as follows:

— Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities.

— Level 2 inputs are observable, market-based inputs, other than Level 1 prices. Level 2 inputs may include quoted prices for similar assets or liabilities in active markets, quoted prices in inactive markets, interest rates and yield curves observable at commonly quoted intervals, forward prices, credit risks, default rates, and inputs derived from or corroborated by observable market data.

— Level 3 inputs are unobservable inputs that reflect CMS Energy's or Consumers' own assumptions about how market participants would value their assets and liabilities.

To the extent possible, CMS Energy and Consumers use quoted market prices or other observable market pricing data in valuing assets and liabilities measured at fair value. If this information is unavailable, they use market-corroborated data or reasonable estimates about market participant assumptions. CMS Energy and Consumers classify fair value measurements within the fair value hierarchy based on the lowest level of input that is significant to the fair value measurement in its entirety.

ASSETS AND LIABILITIES MEASURED AT FAIR VALUE ON A RECURRING BASIS

Presented in the following tables are CMS Energy's and Consumers' assets and liabilities, by level within the fair value hierarchy, reported at fair value on a recurring basis:

In Millions
June 30, 2012	Total		Level 1		Level 2		Level 3
CMS Energy, including Consumers
Assets
Cash equivalents		$    141		$    141		$        -		$        -
Restricted cash equivalents		14		14		-		-
Nonqualified deferred compensation plan assets		5		5		-		-
SERP
Mutual funds		127		127		-		-
Derivative instruments
Commodity contracts		7		1		1		5
Total		$    294		$    288		$        1		$        5
Liabilities
Nonqualified deferred compensation plan liabilities		$5		$        5		$        -		$        -
Derivative instruments
Commodity contracts		6		-		4		2
Total		$      11		$        5		$       4		$        2
Consumers
Assets
Cash equivalents		$    122		$    122		$        -		$        -
Restricted cash equivalents		14		14		-		-
CMS Energy common stock		30		30		-		-
Nonqualified deferred compensation plan assets		3		3		-		-
SERP
Mutual funds		86		86		-		-
Derivative instruments
Commodity contracts		5		-		-		5
Total		$    260		$    255		$        -		$        5
Liabilities
Nonqualified deferred compensation plan liabilities		$        3		$        3		$        -		$        -
Total		$        3		$        3		$        -		$        -

In Millions
December 31, 2011	Total		Level 1		Level 2		Level 3
CMS Energy, including Consumers
Assets
Cash equivalents	$	109	$	109	$	-	$	-
Restricted cash equivalents		15		15		-		-
Nonqualified deferred compensation plan assets		4		4		-		-
SERP
Cash equivalents		1		1		-		-
Mutual funds		113		113		-		-
Derivative instruments
Commodity contracts		3		1		-		2
Total	$	245	$	243	$	-	$	2
Liabilities
Nonqualified deferred compensation plan liabilities	$	4	$	4	$	-	$	-
Derivative instruments
Commodity contracts		7		-		3		4
Total	$	11	$	4	$	3	$	4
Consumers
Assets
Cash equivalents	$	56	$	56	$	-	$	-
Restricted cash equivalents		14		14		-		-
CMS Energy common stock		35		35		-		-
Nonqualified deferred compensation plan assets		3		3		-		-
SERP
Cash equivalents		1		1		-		-
Mutual funds		74		74		-		-
Derivative instruments
Commodity contracts		2		-		-		2
Total	$	185	$	183	$	-	$	2
Liabilities
Nonqualified deferred compensation plan liabilities	$	3	$	3	$	-	$	-
Total	$	3	$	3	$	-	$	-

Cash Equivalents: Cash equivalents and restricted cash equivalents consist of money market funds with daily liquidity.

Nonqualified Deferred Compensation Plan Assets: The nonqualified deferred compensation plan assets consist of various mutual funds that are valued using a market approach. CMS Energy and Consumers value these assets using the daily quoted net asset values that are the basis for transactions to buy or sell shares in each fund. CMS Energy and Consumers report these assets in other non-current assets on their consolidated balance sheets.

SERP Assets: CMS Energy and Consumers value their SERP assets using a market approach, incorporating prices and other relevant information from market transactions. The SERP invests in mutual funds that hold primarily fixed-income instruments of varying maturities. In order to meet their investment objectives, the funds hold investment-grade debt securities, and may invest a portion of their assets in high-yield securities, foreign debt, and derivative instruments. CMS Energy and Consumers value these funds using the daily quoted net asset values that are the basis for transactions to buy or sell shares in each fund. The SERP cash equivalents at December 31, 2011 consisted of a money market fund with daily liquidity. CMS Energy and Consumers report their SERP assets in other non-current assets on their consolidated balance sheets. For additional details about SERP securities, see Note 7: Financial Instruments.

Nonqualified Deferred Compensation Plan Liabilities: CMS Energy and Consumers value their nonqualified deferred compensation plan liabilities based on the fair values of the plan assets, as they reflect what is owed to the plan participants in accordance with their investment elections. CMS Energy and Consumers report these liabilities in other non-current liabilities on their consolidated balance sheets.

Derivative Instruments: CMS Energy and Consumers value their derivative instruments using either a market approach that incorporates information from market transactions, or an income approach that discounts future expected cash flows to a present value amount. CMS Energy has exchange-traded derivative contracts that are valued based on Level 1 quoted prices, as well as derivatives valued using Level 2 inputs, including commodity forward prices, interest rates, credit ratings, default rates, and market-based seasonality factors. CMS Energy and Consumers have classified certain derivatives as Level 3 since the fair value measurements incorporate assumptions that cannot be observed or confirmed through market transactions.

The most significant derivatives classified as Level 3 are a power option sold by CMS ERM and FTRs held by Consumers. The power option sold by CMS ERM is valued using unobservable assumptions about price volatility and the pricing differential between the delivery point and the nearest active market. Due to the lack of quoted pricing information, Consumers determines the fair value of its FTRs based on Consumers' average historical settlements. Under regulatory accounting, all changes in fair value associated with FTRs are deferred as regulatory assets or liabilities until the instruments are settled. In valuing their derivative instruments not classified as Level 1, CMS Energy and Consumers may incorporate adjustments for credit risk, or the risk of nonperformance, as deemed appropriate. CMS Energy and Consumers apply credit risk adjustments, where appropriate, to the net receivable from or payable to each counterparty. For additional details about derivative contracts, see Note 8: Derivative Instruments.

ASSETS AND LIABILITIES MEASURED AT FAIR VALUE ON A RECURRING BASIS USING SIGNIFICANT LEVEL 3 INPUTS

Presented in the following tables are reconciliations of changes in the fair values of Level 3 assets and liabilities at CMS Energy and Consumers:

In Millions
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Balance at beginning of period		$       (1	)		$       (2	)		$       (2	)		$       (3	)
Total gains included in earnings1		-			-			2			-
Total gains offset through regulatory accounting		9			2			7			2
Purchases		-			-			-			1
Settlements		(5	)		-			(4	)		-
Balance at end of period		$        3			$         -			$        3			$         -
Unrealized gains included in earnings relating to assets and liabilities still held at end of period1		$         -			$         -			$        2			$        1
Consumers
Balance at beginning of period		$        1			$         -			$        2			$        1
Total gains offset through regulatory accounting		9			2			7			2
Purchases		-			1			-			1
Settlements		(5	)		-			(4	)		(1	)
Balance at end of period		$        5			$        3			$        5			$        3

¹ CMS Energy records realized and unrealized gains and losses for Level 3 recurring fair value measurements in earnings as a

component of operating revenue or maintenance and other operating expenses on its consolidated statements of income.

XML

New Accounting Standards

6 Months Ended

Jun. 30, 2012

New Accounting Standards

1:     NEW ACCOUNTING STANDARDS

IMPLEMENTATION OF NEW ACCOUNTING STANDARDS

ASU 2011-05, Presentation of Comprehensive Income: This standard, which became effective January 1, 2012 for CMS Energy and Consumers, eliminates the option of reporting other comprehensive income and its components on the statement of changes in equity. Prior to the implementation of this standard, both CMS Energy and Consumers used this option for their consolidated financial statements. Under the standard, entities are required to present either a single continuous statement of comprehensive income, containing both net income and components of other comprehensive income, or two separate consecutive statements. CMS Energy and Consumers have chosen to present two separate consecutive statements. This standard affects only the presentation of comprehensive income on CMS Energy's and Consumers' consolidated financial statements.

ASU 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs: This standard, which became effective January 1, 2012 for CMS Energy and Consumers, is the result of a joint project of the Financial Accounting Standards Board and the International Accounting Standards Board. The primary objective of the standard is to ensure that fair value has the same meaning under GAAP and International Financial Reporting Standards and to establish common fair value measurement guidance in the two sets of standards. The standard does not change the overall fair value model in GAAP, but it amends various fair value principles and establishes additional disclosure requirements. This standard did not impact CMS Energy's or Consumers' consolidated income, cash flows, or financial position, but did require additional disclosures.

Consumers Energy Company [Member]

New Accounting Standards

1:     NEW ACCOUNTING STANDARDS

IMPLEMENTATION OF NEW ACCOUNTING STANDARDS

ASU 2011-05, Presentation of Comprehensive Income: This standard, which became effective January 1, 2012 for CMS Energy and Consumers, eliminates the option of reporting other comprehensive income and its components on the statement of changes in equity. Prior to the implementation of this standard, both CMS Energy and Consumers used this option for their consolidated financial statements. Under the standard, entities are required to present either a single continuous statement of comprehensive income, containing both net income and components of other comprehensive income, or two separate consecutive statements. CMS Energy and Consumers have chosen to present two separate consecutive statements. This standard affects only the presentation of comprehensive income on CMS Energy's and Consumers' consolidated financial statements.

ASU 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs: This standard, which became effective January 1, 2012 for CMS Energy and Consumers, is the result of a joint project of the Financial Accounting Standards Board and the International Accounting Standards Board. The primary objective of the standard is to ensure that fair value has the same meaning under GAAP and International Financial Reporting Standards and to establish common fair value measurement guidance in the two sets of standards. The standard does not change the overall fair value model in GAAP, but it amends various fair value principles and establishes additional disclosure requirements. This standard did not impact CMS Energy's or Consumers' consolidated income, cash flows, or financial position, but did require additional disclosures.

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Notes Receivable (Policy)

6 Months Ended

Jun. 30, 2012

Notes Receivable [Abstract]

Allowance for Loan Losses Policy

EnerBank notes receivable are unsecured consumer installment loans for financing home improvements.

The allowance for loan losses is a valuation allowance to reflect estimated credit losses. The allowance is increased by the provision for loan losses and decreased by loan charge-offs net of recoveries. Management estimates the allowance balance required by taking into consideration historical loan loss experience, the nature and volume of the portfolio, economic conditions, and other factors. Loan losses are charged against the allowance when the loss is confirmed, but no later than the point at which a loan becomes 120 days past due.

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Notes Receivable

6 Months Ended

Jun. 30, 2012

Notes Receivable

9:     NOTES RECEIVABLE

Presented in the following table are details of CMS Energy's and Consumers' current and non-current notes receivable:

In Millions
	June 30, 2012		December 31, 2011
CMS Energy, including Consumers
Current
EnerBank notes receivable, net of allowance for loan losses		$      26		$      19
Other		14		30
Non-current
EnerBank notes receivable, net of allowance for loan losses		460		461
Other		1		1
Total notes receivable		$    501		$    511
Consumers
Current
Other		$      13		$      23
Non-current
Other		1		1
Total notes receivable		$      14		$      24

EnerBank notes receivable are unsecured consumer installment loans for financing home improvements.

The allowance for loan losses is a valuation allowance to reflect estimated credit losses. The allowance is increased by the provision for loan losses and decreased by loan charge-offs net of recoveries. Management estimates the allowance balance required by taking into consideration historical loan loss experience, the nature and volume of the portfolio, economic conditions, and other factors. Loan losses are charged against the allowance when the loss is confirmed, but no later than the point at which a loan becomes 120 days past due.

Presented in the following table are the changes in the allowance for loan losses:

In Millions
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
Balance at beginning of period		$    5		$    5		$    5		$    5
Charge-offs		(1)		(1)		(2)		(2)
Recoveries		-		-		-		-
Provision for loan losses		1		1		2		2
Balance at end of period		$    5		$    5		$    5		$    5

Loans that are 30 days or more past due are considered delinquent. Presented in the following table is the delinquency status of EnerBank's consumer loans:

In Millions
	Past Due 30-59 Days		Past Due 60-89 Days		Past Due Over 90 Days		Total Delinquent		Current		Total Outstanding
June 30, 2012		$      1		$      1		$      -		$      2		$    484		$    486
December 31, 2011		1		-		1		2		478		480

At June 30, 2012 and December 31, 2011, $1 million of EnerBank's loans had been modified as troubled debt restructurings.

Consumers Energy Company [Member]

Notes Receivable

9:     NOTES RECEIVABLE

Presented in the following table are details of CMS Energy's and Consumers' current and non-current notes receivable:

In Millions
	June 30, 2012		December 31, 2011
CMS Energy, including Consumers
Current
EnerBank notes receivable, net of allowance for loan losses		$      26		$      19
Other		14		30
Non-current
EnerBank notes receivable, net of allowance for loan losses		460		461
Other		1		1
Total notes receivable		$    501		$    511
Consumers
Current
Other		$      13		$      23
Non-current
Other		1		1
Total notes receivable		$      14		$      24

EnerBank notes receivable are unsecured consumer installment loans for financing home improvements.

The allowance for loan losses is a valuation allowance to reflect estimated credit losses. The allowance is increased by the provision for loan losses and decreased by loan charge-offs net of recoveries. Management estimates the allowance balance required by taking into consideration historical loan loss experience, the nature and volume of the portfolio, economic conditions, and other factors. Loan losses are charged against the allowance when the loss is confirmed, but no later than the point at which a loan becomes 120 days past due.

Presented in the following table are the changes in the allowance for loan losses:

In Millions
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
Balance at beginning of period		$    5		$    5		$    5		$    5
Charge-offs		(1)		(1)		(2)		(2)
Recoveries		-		-		-		-
Provision for loan losses		1		1		2		2
Balance at end of period		$    5		$    5		$    5		$    5

Loans that are 30 days or more past due are considered delinquent. Presented in the following table is the delinquency status of EnerBank's consumer loans:

In Millions
	Past Due 30-59 Days		Past Due 60-89 Days		Past Due Over 90 Days		Total Delinquent		Current		Total Outstanding
June 30, 2012		$      1		$      1		$      -		$      2		$    484		$    486
December 31, 2011		1		-		1		2		478		480

At June 30, 2012 and December 31, 2011, $1 million of EnerBank's loans had been modified as troubled debt restructurings.

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Financings and Capitalization

6 Months Ended

Jun. 30, 2012

Financings and Capitalization

5:     FINANCINGS AND CAPITALIZATION

Presented in the following table is a summary of major long-term debt transactions during the six months ended June 30, 2012:

	Principal (In Millions)		Interest Rate			Issue/Retirement Date		Maturity Date
Debt Issuances
CMS Energy
Senior notes		$      300		5.05	%		March 2012		March 2022
Term loan facility1,2		30		variable			February 2012		December 2016
Consumers
FMB		375		2.85	%		May 2012		May 2022
Total		$      705
Debt Retirements
CMS Energy
Contingently convertible senior notes3		$      226		2.88	%		January 2012 and April 2012		December 2024
Trust Preferred Securities		29		7.75	%		February 2012		July 2027
Consumers
FMB		300		5.00	%		February 2012		February 2012
FMB		375		5.38	%		May 2012		April 2013
Total		$      930

¹  In December 2011, CMS Energy entered into a $180 million term loan credit agreement that provides for delayed draws through July 20, 2012. Outstanding borrowings bear interest at an annual interest rate of LIBOR plus 2.5 percent. 

²  CMS Energy used these proceeds to retire the 7.75 percent Trust Preferred Securities.

³  CMS Energy's contingently convertible notes. See the "Contingently Convertible Securities" section in this Note for further discussion of the conversions.

In May 2012, CMS Energy called for redemption its $150 million floating-rate senior notes due January 2013. The notes were redeemed in July 2012 using proceeds from the $180 million term loan facility entered into in December 2011.

In June 2012, Consumers entered into a short-term credit agreement permitting Consumers to borrow up to $375 million. Consumers borrowed $350 million under this agreement in July 2012. This facility will mature in March 2013.

In July 2012, Consumers executed a bond purchase agreement under which it will issue, in a December 2012 private placement, $52 million of 3.19 percent FMBs due 2024, $35 million of 3.39 percent FMBs due 2027, and $263 million of 4.31 percent FMBs due 2042.

Revolving Credit Facilities: The following secured revolving credit facilities with banks were available at June 30, 2012:

In Millions
Expiration Date	Amount of Facility		Amount Borrowed		Letters of Credit Outstanding		Amount Available
CMS Energy
March 31, 20161		$    550		$    25		$      2		$    523
Consumers
March 31, 20162		$    500		$       -		$      3		$    497
April 18, 20172		150		-		-		150
September 9, 20142		30		-		30		-

¹  Obligations under this facility are secured by Consumers common stock. CMS Energy's average borrowings during the six months ended June 30, 2012 totaled $13 million, with a weighted-average annual interest rate of 2.27 percent, representing LIBOR plus 2.00 percent.

²  Obligations under this facility are secured by FMBs of Consumers.

Short-term Borrowings: Under Consumers' revolving accounts receivable sales program, Consumers may transfer up to $250 million of accounts receivable, subject to certain eligibility requirements. These transactions are accounted for as short-term secured borrowings. At June 30, 2012, $250 million of accounts receivable were eligible for transfer, and no accounts receivable had been transferred under the program. During the six months ended June 30, 2012, Consumers' average short-term borrowings totaled $16 million, with a weighted average annual interest rate of 0.9 percent.

Contingently Convertible Securities: Presented in the following table are the significant terms of CMS Energy's contingently convertible securities at June 30, 2012:

Security	Maturity		Outstanding (In Millions)			Adjusted Conversion Price		Adjusted Trigger Price
5.50% senior notes		2029		$	172		13.94		18.12

During 20 of the last 30 trading days ended June 30, 2012, the adjusted trigger-price contingencies were met for the contingently convertible senior notes, and as a result, the senior notes are convertible at the option of the note holders for the three months ending September 30, 2012.

Presented in the following table are details about conversions of contingently convertible securities during the six months ended June 30, 2012:

	Conversion Date		Principal Converted (In Millions)		Conversion Value per $1,000 of principal		Shares of Common Stock Issued on Settlement		Cash Paid on Settlement (In Millions)
2.875% senior notes due 2024		January 2012		$        73		$    1,738.99		2,464,138		$        73
		April 2012		153		1,774.98		5,381,349		153

Dividend Restrictions: Under provisions of CMS Energy's senior notes indenture, at June 30, 2012, payment of common stock dividends by CMS Energy was limited to $1.3 billion.

Under the provisions of its articles of incorporation, at June 30, 2012, Consumers had $532 million of unrestricted retained earnings available to pay common stock dividends to CMS Energy. Provisions of the Federal Power Act and the Natural Gas Act appear to restrict dividends payable by Consumers to the amount of Consumers' retained earnings. Several decisions from FERC suggest that under a variety of circumstances common stock dividends from Consumers would not be limited to amounts in Consumers' retained earnings. Any decision by Consumers to pay common stock dividends in excess of retained earnings would be based on specific facts and circumstances and would result only after a formal regulatory filing process.

For the six months ended June 30, 2012, CMS Energy received $158 million of common stock dividends from Consumers.

Issuance of Common Stock: In June 2011, CMS Energy entered into a continuous equity offering program under which CMS Energy may sell, from time to time in "at the market" offerings, common stock having an aggregate sales price of up to $50 million. In June 2012, under this program, CMS Energy issued 650,235 shares of common stock at an average price of $23.07 per share, resulting in net proceeds of $15 million. In June 2011, under this program, CMS Energy issued 762,925 shares of common stock at an average price of $19.66 per share, resulting in net proceeds of $15 million.

Consumers Energy Company [Member]

Financings and Capitalization

5:     FINANCINGS AND CAPITALIZATION

Presented in the following table is a summary of major long-term debt transactions during the six months ended June 30, 2012:

	Principal (In Millions)		Interest Rate			Issue/Retirement Date		Maturity Date
Debt Issuances
CMS Energy
Senior notes		$      300		5.05	%		March 2012		March 2022
Term loan facility1,2		30		variable			February 2012		December 2016
Consumers
FMB		375		2.85	%		May 2012		May 2022
Total		$      705
Debt Retirements
CMS Energy
Contingently convertible senior notes3		$      226		2.88	%		January 2012 and April 2012		December 2024
Trust Preferred Securities		29		7.75	%		February 2012		July 2027
Consumers
FMB		300		5.00	%		February 2012		February 2012
FMB		375		5.38	%		May 2012		April 2013
Total		$      930

¹  In December 2011, CMS Energy entered into a $180 million term loan credit agreement that provides for delayed draws through July 20, 2012. Outstanding borrowings bear interest at an annual interest rate of LIBOR plus 2.5 percent.

²  CMS Energy used these proceeds to retire the 7.75 percent Trust Preferred Securities.

³  CMS Energy's contingently convertible notes. See the "Contingently Convertible Securities" section in this Note for further discussion of the conversions.

In May 2012, CMS Energy called for redemption its $150 million floating-rate senior notes due January 2013. The notes were redeemed in July 2012 using proceeds from the $180 million term loan facility entered into in December 2011.

In June 2012, Consumers entered into a short-term credit agreement permitting Consumers to borrow up to $375 million. Consumers borrowed $350 million under this agreement in July 2012. This facility will mature in March 2013.

In July 2012, Consumers executed a bond purchase agreement under which it will issue, in a December 2012 private placement, $52 million of 3.19 percent FMBs due 2024, $35 million of 3.39 percent FMBs due 2027, and $263 million of 4.31 percent FMBs due 2042.

Revolving Credit Facilities: The following secured revolving credit facilities with banks were available at June 30, 2012:

In Millions
Expiration Date	Amount of Facility		Amount Borrowed		Letters of Credit Outstanding		Amount Available
CMS Energy
March 31, 20161		$    550		$    25		$      2		$    523
Consumers
March 31, 20162		$    500		$       -		$      3		$    497
April 18, 20172		150		-		-		150
September 9, 20142		30		-		30		-

¹  Obligations under this facility are secured by Consumers common stock. CMS Energy's average borrowings during the six months ended June 30, 2012 totaled $13 million, with a weighted-average annual interest rate of 2.27 percent, representing LIBOR plus 2.00 percent.

²  Obligations under this facility are secured by FMBs of Consumers.

Short-term Borrowings: Under Consumers' revolving accounts receivable sales program, Consumers may transfer up to $250 million of accounts receivable, subject to certain eligibility requirements. These transactions are accounted for as short-term secured borrowings. At June 30, 2012, $250 million of accounts receivable were eligible for transfer, and no accounts receivable had been transferred under the program. During the six months ended June 30, 2012, Consumers' average short-term borrowings totaled $16 million, with a weighted average annual interest rate of 0.9 percent.

Contingently Convertible Securities: Presented in the following table are the significant terms of CMS Energy's contingently convertible securities at June 30, 2012:

Security	Maturity		Outstanding (In Millions)			Adjusted Conversion Price		Adjusted Trigger Price
5.50% senior notes		2029		$	172		13.94		18.12

During 20 of the last 30 trading days ended June 30, 2012, the adjusted trigger-price contingencies were met for the contingently convertible senior notes, and as a result, the senior notes are convertible at the option of the note holders for the three months ending September 30, 2012.

Presented in the following table are details about conversions of contingently convertible securities during the six months ended June 30, 2012:

	Conversion Date		Principal Converted (In Millions)		Conversion Value per $1,000 of principal		Shares of Common Stock Issued on Settlement		Cash Paid on Settlement (In Millions)
2.875% senior notes due 2024		January 2012		$        73		$    1,738.99		2,464,138		$        73
		April 2012		153		1,774.98		5,381,349		153

Dividend Restrictions: Under provisions of CMS Energy's senior notes indenture, at June 30, 2012, payment of common stock dividends by CMS Energy was limited to $1.3 billion.

Under the provisions of its articles of incorporation, at June 30, 2012, Consumers had $532 million of unrestricted retained earnings available to pay common stock dividends to CMS Energy. Provisions of the Federal Power Act and the Natural Gas Act appear to restrict dividends payable by Consumers to the amount of Consumers' retained earnings. Several decisions from FERC suggest that under a variety of circumstances common stock dividends from Consumers would not be limited to amounts in Consumers' retained earnings. Any decision by Consumers to pay common stock dividends in excess of retained earnings would be based on specific facts and circumstances and would result only after a formal regulatory filing process.

For the six months ended June 30, 2012, CMS Energy received $158 million of common stock dividends from Consumers.

Issuance of Common Stock: In June 2011, CMS Energy entered into a continuous equity offering program under which CMS Energy may sell, from time to time in "at the market" offerings, common stock having an aggregate sales price of up to $50 million. In June 2012, under this program, CMS Energy issued 650,235 shares of common stock at an average price of $23.07 per share, resulting in net proceeds of $15 million. In June 2011, under this program, CMS Energy issued 762,925 shares of common stock at an average price of $19.66 per share, resulting in net proceeds of $15 million.

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Contingencies and Commitments

6 Months Ended

Jun. 30, 2012

Contingencies and Commitments

3:     CONTINGENCIES AND COMMITMENTS

CMS Energy and Consumers are involved in various matters that give rise to contingent liabilities. Depending on the specific issues, the resolution of these contingencies could have a material effect on CMS Energy's and Consumers' liquidity, financial condition, and results of operations. In their disclosures of these matters, CMS Energy and Consumers provide an estimate of the possible loss or range of loss when such an estimate can be made. Disclosures that state that CMS Energy or Consumers cannot predict the outcome of a matter indicate that they are unable to estimate a possible loss or range of loss for the matter.

CMS ENERGY CONTINGENCIES

Gas Index Price Reporting Investigation: In 2002, CMS Energy notified appropriate regulatory and governmental agencies that some employees at CMS MST and CMS Field Services appeared to have provided inaccurate information regarding natural gas trades to various energy industry publications which compile and report index prices. Although CMS Energy has not received any formal notification that the DOJ has completed its investigation, the DOJ's last request for information occurred in 2003, and CMS Energy completed its response to this request in 2004. CMS Energy is unable to predict the outcome of the DOJ investigation and what effect, if any, the investigation will have on CMS Energy.

Gas Index Price Reporting Litigation: CMS Energy, along with CMS MST, CMS Field Services, Cantera Natural Gas, Inc., and Cantera Gas Company, are named as defendants in various lawsuits arising as a result of alleged inaccurate natural gas price reporting to publications that report trade information. Allegations include manipulation of NYMEX natural gas futures and options prices, price-fixing conspiracies, restraint of trade, and artificial inflation of natural gas retail prices in Colorado, Kansas, Missouri, and Wisconsin. The following provides more detail on these proceedings:

— In 2005, CMS Energy, CMS MST, and CMS Field Services were named as defendants in a putative class action filed in Kansas state court, Learjet, Inc., et al. v. Oneok, Inc., et al. The complaint alleges that during the putative class period, January 1, 2000 through October 31, 2002, the defendants engaged in a scheme to violate the Kansas Restraint of Trade Act. The plaintiffs are seeking statutory full consideration damages consisting of the full consideration paid by plaintiffs for natural gas allegedly purchased from defendants.

— In 2007, a class action complaint, Heartland Regional Medical Center, et al. v. Oneok, Inc. et al., was filed in Missouri state court alleging violations of Missouri antitrust laws. Defendants, including CMS Energy, CMS Field Services, and CMS MST, are alleged to have violated the Missouri antitrust law in connection with their natural gas reporting activities.

— Breckenridge Brewery of Colorado, LLC and BBD Acquisition Co. v. Oneok, Inc., et al., a class action complaint brought on behalf of retail direct purchasers of natural gas in Colorado, was filed in Colorado state court in 2006. Defendants, including CMS Energy, CMS Field Services, and CMS MST, are alleged to have violated the Colorado Antitrust Act of 1992 in connection with their natural gas reporting activities. Plaintiffs are seeking full refund damages.

— A class action complaint, Arandell Corp., et al. v. XCEL Energy Inc., et al., was filed in 2006 in Wisconsin state court on behalf of Wisconsin commercial entities that purchased natural gas between January 1, 2000 and October 31, 2002. The defendants, including CMS Energy, CMS ERM, and Cantera Gas Company, are alleged to have violated Wisconsin's antitrust statute.

The plaintiffs are seeking full consideration damages, plus exemplary damages and attorneys' fees. After dismissal on jurisdictional grounds in 2009, plaintiffs filed a new complaint in the U.S. District Court for the Eastern District of Michigan. In 2010, the MDL judge issued an opinion and order granting the CMS Energy defendants' motion to dismiss the Michigan complaint on statute-of-limitations grounds and all CMS Energy defendants have been dismissed from the Arandell (Michigan) action.

— Another class action complaint, Newpage Wisconsin System v. CMS ERM, et al., was filed in 2009 in circuit court in Wood County, Wisconsin, against CMS Energy, CMS ERM, Cantera Gas Company, and others. The plaintiff is seeking full consideration damages, treble damages, costs, interest, and attorneys' fees.

— In 2005, J.P. Morgan Trust Company, in its capacity as Trustee of the FLI Liquidating Trust, filed an action in Kansas state court against CMS Energy, CMS MST, CMS Field Services, and others. The complaint alleges various claims under the Kansas Restraint of Trade Act. The plaintiff is seeking statutory full consideration damages for its purchases of natural gas in 2000 and 2001.

After removal to federal court, all of the cases described above were transferred to the MDL. CMS Energy was dismissed from the Learjet, Heartland, and J.P. Morgan cases in 2009, but other CMS Energy defendants remained parties. All CMS Energy defendants were dismissed from the Breckenridge case in 2009. In 2010, CMS Energy and Cantera Gas Company were dismissed from the Newpage case and the Arandell (Wisconsin) case was reinstated against CMS ERM. In July 2011, all claims against remaining CMS Energy defendants in the MDL cases were dismissed based on FERC preemption. Plaintiffs have filed appeals in all of the cases. The issues on appeal are whether the district court erred in dismissing the cases based on FERC preemption and denying the plaintiffs' motions for leave to amend their complaints to add a federal Sherman Act antitrust claim. The plaintiffs did not appeal the dismissal of CMS Energy as a defendant in these cases, but other CMS Energy entities remain as defendants.

These cases involve complex facts, a large number of similarly situated defendants with different factual positions, and multiple jurisdictions. Presently, any estimate of liability would be highly speculative; the amount of CMS Energy's possible loss would be based on widely varying models previously untested in this context. If the outcome after appeals is unfavorable, these cases could have a material adverse impact on CMS Energy's liquidity, financial condition, and results of operations.

Bay Harbor: As part of the development of Bay Harbor by certain subsidiaries of CMS Energy, and under an agreement with the MDEQ, third parties constructed a golf course and park over several abandoned CKD piles left over from the former cement plant operations on the Bay Harbor site. The third parties also undertook a series of response activities, including constructing a leachate collection system in one area where CKD-impacted groundwater was entering Little Traverse Bay. Leachate is produced when water enters into the CKD piles. In 2002, CMS Energy sold its interest in Bay Harbor, but retained its obligations under environmental indemnities entered into at the start of the project.

In 2005, the EPA, along with CMS Land and CMS Capital, voluntarily executed an Administrative Order on Consent under Superfund, and the EPA approved a Removal Action Work Plan to address contamination issues. Collection systems required under the plan have been installed and effectiveness monitoring of the systems at the shoreline is ongoing. CMS Land, CMS Capital, and the EPA agreed upon augmentation measures to address areas where pH measurements were not satisfactory. Several augmentation measures were implemented and completed in 2009, with the remaining measure completed in 2010.

In May 2011, CMS Energy received approval from the EPA on a revised scope of remedies that CMS Energy had submitted in December 2010. CMS Energy reached a tentative agreement with the MDEQ in December 2011 that identifies the final remedies at the site. The EPA notified the MDEQ in March 2012 that it had no objections to this tentative agreement, and in June 2012, CMS Energy and the MDEQ finalized the agreement. Following the execution of this agreement, a change in Michigan law was enacted that included additional provisions regarding monitoring and compliance requirements for certain contaminants. As a consequence, and as allowed by the agreement with the MDEQ, CMS Energy eliminated certain remedies from its remediation plan that were previously required under the agreement. CMS Energy also agreed to perform additional monitoring and to modify certain areas of the collection systems.

In 2010, the MDEQ issued an NPDES permit that authorizes CMS Land to discharge treated leachate into Little Traverse Bay. This permit requires renewal every five years. Discharge of treated leachate under the permit has commenced. In 2010, CMS Land also committed to investigate the potential for a deep injection well on the Bay Harbor site as an alternative long-term method of leachate disposal. The agreement requiring this investigation was amended in June 2012 to require that CMS Land perform this investigation only if CMS Land is unable to meet the requirements of its NPDES discharge permit. In 2008, the MDEQ and the EPA granted permits for CMS Land or its wholly owned subsidiary, Beeland Group LLC, to construct and operate an off-site deep injection well in Antrim County, Michigan, to dispose of leachate from Bay Harbor. Certain environmental groups, a local township, and a local county filed lawsuits appealing the permits and seeking an injunction. A temporary restraining order was issued by the trial court. The legal proceeding was stayed in 2009 and can be renewed by either party at any time. CMS Land no longer expects to incur costs related to these proposed deep injection wells at either the Bay Harbor site or in Antrim County.

Following these developments, CMS Energy reassessed its remediation strategy and anticipated costs, and determined that no adjustment was required to the liability recorded for CMS Energy's remaining obligations at the site.

Various claims have been brought against CMS Land or its affiliates, including CMS Energy, alleging environmental damage to property, loss of property value, insufficient disclosure of environmental matters, breach of agreement relating to access, or other matters. In October 2010, CMS Land and other parties received a demand for payment from the EPA in the amount of $7 million, plus interest, whereby the EPA is seeking recovery, as allowed under Superfund, of the EPA's response costs incurred at the Bay Harbor site. CMS Land communicated to the EPA in November 2010 that it does not believe that this is a valid claim.

CMS Energy has recorded a cumulative charge related to Bay Harbor of $225 million, which includes accretion expense. At June 30, 2012, CMS Energy had a recorded liability of $68 million for its remaining obligations. CMS Energy calculated this liability based on discounted projected costs, using a discount rate of 4.34 percent and an inflation rate of one percent on annual operating and maintenance costs. CMS Energy based the discount rate on the interest rate for 30-year U.S. Treasury securities at December 31, 2010. The undiscounted amount of the remaining obligation is $89 million. CMS Energy expects to pay $11 million during the remainder of 2012, $8 million in 2013, $5 million in 2014, $4 million in 2015, $4 million in 2016, and the remaining amount thereafter on long-term liquid disposal and operating and maintenance costs.

CMS Energy's estimate of response activity costs and the timing of expenditures could change if there are additional major changes in circumstances or assumptions, including but not limited to:

— inability to complete the present long-term water disposal strategy at a reasonable cost;

— requirements to alter the present long-term water disposal strategy upon expiration of the NPDES permit if the MDEQ or EPA identify a more suitable alternative;

— an increase in the number of contamination areas;

— different remediation techniques;

— the nature and extent of contamination;

— delays in the receipt of requested permits;

— delays following the receipt of any requested permits due to legal appeals of third parties;

— additional or new legal or regulatory requirements; or

— new or different landowner claims.

Depending on the size of any indemnity obligation or liability under environmental laws, an adverse outcome of this matter could have a material adverse effect on CMS Energy's liquidity and financial condition and could negatively affect CMS Energy's financial results. Although a liability for its present estimate of remaining response activity costs has been recorded, CMS Energy cannot predict the ultimate financial impact or outcome of this matter.

Equatorial Guinea Tax Claim: In January 2002, CMS Energy sold its oil, gas, and methanol investments in Equatorial Guinea. The government of Equatorial Guinea claims that CMS Energy owes $142 million in taxes, plus interest, in connection with the sale. CMS Energy has concluded that the government's tax claim is without merit. The government of Equatorial Guinea indicated through a request for arbitration in October 2011 that it still intends to pursue its claim. CMS Energy is vigorously contesting the claim, and cannot predict the financial impact or outcome of this matter.

Panhandle Tax Indemnification: CMS Energy recorded a liability in 2003 for an indemnification provided in conjunction with the sale of Panhandle. As of March 31, 2012 the statute of limitations had expired for this indemnification. Accordingly, CMS Energy eliminated the liability during the three months ended March 31, 2012 and recognized an after-tax benefit of $7 million in discontinued operations.

CONSUMERS ELECTRIC UTILITY CONTINGENCIES

Electric Environmental Matters: Consumers' operations are subject to environmental laws and regulations. Historically, Consumers has generally been able to recover, in customer rates, the costs to operate its facilities in compliance with these laws and regulations.

Cleanup and Solid Waste: Consumers expects to incur remediation and other response activity costs at a number of sites under NREPA. Consumers believes that these costs should be recoverable in rates, but cannot guarantee that outcome. Consumers estimates that its liability for NREPA sites will be between $4 million and $7 million. At June 30, 2012, Consumers had a recorded liability of $4 million, the minimum amount in the range of its estimated probable NREPA liability.

Consumers is a potentially responsible party at a number of contaminated sites administered under the Superfund. Superfund liability is joint and several. In addition to Consumers, many other creditworthy parties with substantial assets are potentially responsible with respect to the individual sites. In 2010, Consumers received official notification from the EPA that identified Consumers as a potentially responsible party at the Kalamazoo River Superfund site. The notification claimed that the EPA has reason to believe Consumers disposed of PCBs and arranged for the disposal and treatment of PCB-containing materials at portions of the site. Consumers responded to the EPA in 2010, stating that it has no information showing that it disposed of PCBs or arranged for disposal or treatment of PCB-containing material at portions of the site and requesting further information from the EPA before Consumers would commit to perform or finance cleanup activities at the site. In April 2011, Consumers received a follow-up letter from the EPA requesting that Consumers, as a potentially responsible party at the Kalamazoo River Superfund site, agree to participate in a removal action plan along with several other companies for an area of lower Portage Creek. The letter also indicated that under Sections 106 and 107 of Superfund, Consumers may be liable for reimbursement of the EPA's costs and potential penalties for noncompliance with any unilateral order that the EPA may issue requiring performance under the removal action plan. All parties, including Consumers, that were asked to participate in the removal action plan declined to accept liability. In August 2011, the EPA announced that it would proceed with the removal action plan and would continue to pursue potentially responsible parties to perform or pay for some or all of the work. The EPA has provided limited information regarding Consumers' potential responsibility for contamination at the site and has not yet given an indication of the share of any cleanup costs for which Consumers could be held responsible. Consumers continues to investigate the EPA's claim that it disposed of PCBs or arranged for disposal or treatment of PCB-containing material at portions of the site. Until further information is received from the EPA, Consumers is unable to estimate a range of potential liability for cleanup of the river.

Based on its experience, Consumers estimates that its share of the total liability for other known Superfund sites will be between $2 million and $8 million. Various factors, including the number of potentially responsible parties involved with each site, affect Consumers' share of the total liability. At June 30, 2012, Consumers had a recorded liability of $2 million for its share of the total liability at these sites, the minimum amount in the range of its estimated probable Superfund liability.

The timing of payments related to Consumers' remediation and other response activities at its Superfund and NREPA sites is uncertain. Consumers periodically reviews these cost estimates. Any significant change in the underlying assumptions, such as an increase in the number of sites, different remediation techniques, the nature and extent of contamination, and legal and regulatory requirements, could affect its estimates of NREPA and Superfund liability.

Ludington PCB: In 1998, during routine maintenance activities, Consumers identified PCB as a component in certain paint, grout, and sealant materials at Ludington. Consumers removed and replaced part of the PCB material with non-PCB material. Since proposing a plan to take action with respect to the remaining materials, Consumers has had several communications with the EPA. Consumers is not able to predict when the EPA will issue a final ruling and cannot predict the financial impact or outcome of this matter.

Electric Utility Plant Air Permit Issues and Notices of Violation: In 2007, Consumers received an NOV/FOV from the EPA alleging that fourteen utility boilers exceeded the visible emission limits in their associated air permits. Consumers has responded formally to the NOV/FOV denying the allegations. In addition, in 2008, Consumers received an NOV for three of its coal-fueled facilities alleging, among other things, violations of NSR PSD regulations relating to ten projects from 1986 to 1998 allegedly subject to review under the NSR. The EPA has alleged that some utilities have classified incorrectly major plant modifications as RMRR rather than seeking permits from the EPA or state regulatory agencies to modify their plants. Consumers responded to the information requests from the EPA on this subject in the past. Consumers believes that it has properly interpreted the requirements of RMRR.

Consumers is engaged in discussions with the EPA on all of these matters. Depending upon the outcome of these discussions, the EPA could bring legal action against Consumers and/or Consumers could be required to install additional pollution control equipment at some or all of its coal-fueled electric generating plants, surrender emission allowances, engage in Supplemental Environmental Projects, and/or pay fines. Additionally, Consumers would need to assess the viability of continuing operations at certain plants. The potential costs relating to these matters could be material and the extent of cost recovery cannot be reasonably estimated. Although Consumers cannot predict the financial impact or outcome of these matters, Consumers expects that it would be able to recover some or all of the costs in rates, consistent with the recovery of other reasonable costs of complying with environmental laws and regulations.

Nuclear Matters: The matters discussed in this section relate to Consumers' previously owned nuclear generating plants.

In 1997, a U.S. Court of Appeals decision confirmed that the DOE was to begin accepting deliveries of spent nuclear fuel for disposal by January 1998. Subsequent U.S. Court of Appeals litigation, in which Consumers and other utilities participated, had not been successful in producing more specific relief for the DOE's failure to accept the spent nuclear fuel. A number of court decisions have supported the right of utilities to pursue damage claims in the U.S. Court of Claims against the DOE for failure to take delivery of spent nuclear fuel. Consumers filed a complaint in 2002.

In July 2011, Consumers entered into an agreement with the DOE to settle its claims for $120 million. In September 2011, Consumers filed an application with the MPSC regarding the regulatory treatment of the settlement amount. For further information, see Note 4: Regulatory Matters.

As part of the agreement with the DOE, Consumers settled its liability to the DOE to fund the disposal of spent nuclear fuel used at Palisades and Big Rock before 1983. This liability, which totaled $163 million, comprised $44 million collected from customers for spent nuclear fuel disposal fees and $119 million of interest accrued on those fees, and was to be paid no later than when the DOE began accepting delivery of spent nuclear fuel. CMS Energy and Consumers classified the liability as long-term debt on their consolidated balance sheets.

Following the settlement, Consumers terminated its letter of credit to Entergy, which Consumers had provided as security for its retained obligation to the DOE in connection with its sale of Palisades and the Big Rock ISFSI to Entergy in 2007.

In its November 2010 electric rate case order, the MPSC had directed Consumers to establish an independent trust fund for the amount payable to the DOE. Following its settlement with the DOE, Consumers petitioned the MPSC to relieve it of the obligation to fund the trust.

CONSUMERS GAS UTILITY CONTINGENCIES

Gas Environmental Matters: Consumers expects to incur remediation and other response activity costs at a number of sites under the NREPA. These sites include 23 former MGP facilities. Consumers operated the facilities on these sites for some part of their operating lives. For some of these sites, Consumers has no present ownership interest or may own only a portion of the original site.

At June 30, 2012, Consumers had a recorded liability of $128 million for its remaining obligations for these sites. This amount represents the present value of long-term projected costs, using a discount rate of 2.57 percent and an inflation rate of 2.5 percent. Consumers based the discount rate on the interest rate for 20-year U.S. Treasury securities at December 31, 2011. The undiscounted amount of the remaining obligation is $140 million. Consumers expects to incur remediation and other response activity costs during the remainder of 2012 and in each of the next four years as follows:

									In Millions
	2012		2013		2014		2015		2016
Consumers
Remediation and other response activity costs		$      10		$      11		$      11		$      20		$      11

Consumers periodically reviews these cost estimates. Any significant change in the underlying assumptions, such as an increase in the number of sites, changes in remediation techniques, or legal and regulatory requirements, could affect Consumers' estimates of annual response activity costs and the MGP liability.

Pursuant to orders issued by the MPSC, Consumers defers its MGP-related remediation costs and recovers them from its customers over a ten-year period. At June 30, 2012, Consumers had a regulatory asset of $154 million related to the MGP sites.

CONSUMERS OTHER CONTINGENCIES

Other Environmental Matters: Consumers is initiating preliminary investigations during 2012 at a number of potentially contaminated sites it presently owns with the intention of determining whether any contamination exists and the extent of any identified contamination. The sites to be investigated include combustion turbine sites, generating sites, compressor stations, and remote storage tanks. At June 30, 2012, evidence of contamination led Consumers to plan remedial investigations and certain interim response measures at some of these sites. The cost of these activities has been incorporated into Consumers' estimated liability for NREPA sites. Consumers will continue its preliminary investigations at other potentially contaminated sites through the remainder of 2012. Consumers cannot predict an outcome at this stage of the investigations.

GUARANTEES

Presented in the following table are CMS Energy's and Consumers' guarantees at June 30, 2012:

								In Millions
Guarantee Description	Issue Date		Expiration Date		Maximum Obligation			Carrying Amount
CMS Energy, including Consumers
Indemnity obligations from asset sales and other agreements		Various		Various through September 2029		$       512	1		$      16
Guarantees and put options2		Various		Various through March 2021		60			1
Consumers
Indemnity obligations and other guarantees		Various		Various through September 2029		$      30			$      1

¹  The majority of this amount arises from stock and asset sale agreements under which CMS Energy or a subsidiary of CMS Energy, other than Consumers, indemnified the purchaser for losses resulting from various matters, including claims related to tax disputes, claims related to power purchase agreements, and defects in title to the assets or stock sold to the purchaser by CMS Energy subsidiaries. Except for items described elsewhere in this Note, CMS Energy believes the likelihood of material loss to be remote for the indemnity obligations not recorded as liabilities.

²  At June 30, 2012, the carrying amount of CMS Land's put option agreements with certain Bay Harbor property owners was less than $1 million. If CMS Land is required to purchase a Bay Harbor property under a put option agreement, it may sell the property to recover the amount paid under the put option agreement.

Presented in the following table is additional information regarding CMS Energy's and Consumers' guarantees:

Guarantee Description	How Guarantee Arose	Events That  Would Require Performance
CMS Energy, including Consumers
Indemnity obligations from asset	Stock and asset sale	Findings of misrepresentation,
sales and other agreements	agreements	breach of warranties, tax claims, and
		other specific events or
		circumstances
Guarantees	Normal operating	Nonperformance or non-payment by a
	activity	subsidiary under a related contract
Put options	Bay Harbor	Owners exercising put options requiring
	remediation efforts	CMS Land to purchase property
Consumers
Guarantees and indemnity	Normal operating	Nonperformance or claims made by third
obligations	activity	party under a related contract

CMS Energy, Consumers, and certain other subsidiaries of CMS Energy also enter into various agreements containing tax and other indemnity provisions for which they are unable to estimate the maximum potential obligation. These factors include unspecified exposure under certain agreements. CMS Energy and Consumers consider the likelihood that they would be required to perform or incur substantial losses related to these indemnities to be remote.

OTHER CONTINGENCIES

Other: In addition to the matters disclosed in this Note and Note 4: Regulatory Matters, there are certain other lawsuits and administrative proceedings before various courts and governmental agencies arising in the ordinary course of business to which CMS Energy, Consumers, and certain other subsidiaries of CMS Energy are parties. These other lawsuits and proceedings may involve personal injury, property damage, contracts, environmental matters, federal and state taxes, rates, licensing, employment, and other matters. Further, CMS Energy and Consumers occasionally self-report certain regulatory non-compliance matters that may or may not eventually result in administrative proceedings. CMS Energy and Consumers believe that the outcome of any one of these proceedings will not have a material adverse effect on their consolidated results of operations, financial condition, or liquidity.

Consumers Energy Company [Member]

Contingencies and Commitments

3:     CONTINGENCIES AND COMMITMENTS

CMS Energy and Consumers are involved in various matters that give rise to contingent liabilities. Depending on the specific issues, the resolution of these contingencies could have a material effect on CMS Energy's and Consumers' liquidity, financial condition, and results of operations. In their disclosures of these matters, CMS Energy and Consumers provide an estimate of the possible loss or range of loss when such an estimate can be made. Disclosures that state that CMS Energy or Consumers cannot predict the outcome of a matter indicate that they are unable to estimate a possible loss or range of loss for the matter.

CMS ENERGY CONTINGENCIES

Gas Index Price Reporting Investigation: In 2002, CMS Energy notified appropriate regulatory and governmental agencies that some employees at CMS MST and CMS Field Services appeared to have provided inaccurate information regarding natural gas trades to various energy industry publications which compile and report index prices. Although CMS Energy has not received any formal notification that the DOJ has completed its investigation, the DOJ's last request for information occurred in 2003, and CMS Energy completed its response to this request in 2004. CMS Energy is unable to predict the outcome of the DOJ investigation and what effect, if any, the investigation will have on CMS Energy.

Gas Index Price Reporting Litigation: CMS Energy, along with CMS MST, CMS Field Services, Cantera Natural Gas, Inc., and Cantera Gas Company, are named as defendants in various lawsuits arising as a result of alleged inaccurate natural gas price reporting to publications that report trade information. Allegations include manipulation of NYMEX natural gas futures and options prices, price-fixing conspiracies, restraint of trade, and artificial inflation of natural gas retail prices in Colorado, Kansas, Missouri, and Wisconsin. The following provides more detail on these proceedings:

— In 2005, CMS Energy, CMS MST, and CMS Field Services were named as defendants in a putative class action filed in Kansas state court, Learjet, Inc., et al. v. Oneok, Inc., et al. The complaint alleges that during the putative class period, January 1, 2000 through October 31, 2002, the defendants engaged in a scheme to violate the Kansas Restraint of Trade Act. The plaintiffs are seeking statutory full consideration damages consisting of the full consideration paid by plaintiffs for natural gas allegedly purchased from defendants.

— In 2007, a class action complaint, Heartland Regional Medical Center, et al. v. Oneok, Inc. et al., was filed in Missouri state court alleging violations of Missouri antitrust laws. Defendants, including CMS Energy, CMS Field Services, and CMS MST, are alleged to have violated the Missouri antitrust law in connection with their natural gas reporting activities.

— Breckenridge Brewery of Colorado, LLC and BBD Acquisition Co. v. Oneok, Inc., et al., a class action complaint brought on behalf of retail direct purchasers of natural gas in Colorado, was filed in Colorado state court in 2006. Defendants, including CMS Energy, CMS Field Services, and CMS MST, are alleged to have violated the Colorado Antitrust Act of 1992 in connection with their natural gas reporting activities. Plaintiffs are seeking full refund damages.

— A class action complaint, Arandell Corp., et al. v. XCEL Energy Inc., et al., was filed in 2006 in Wisconsin state court on behalf of Wisconsin commercial entities that purchased natural gas between January 1, 2000 and October 31, 2002. The defendants, including CMS Energy, CMS ERM, and Cantera Gas Company, are alleged to have violated Wisconsin's antitrust statute.

The plaintiffs are seeking full consideration damages, plus exemplary damages and attorneys' fees. After dismissal on jurisdictional grounds in 2009, plaintiffs filed a new complaint in the U.S. District Court for the Eastern District of Michigan. In 2010, the MDL judge issued an opinion and order granting the CMS Energy defendants' motion to dismiss the Michigan complaint on statute-of-limitations grounds and all CMS Energy defendants have been dismissed from the Arandell (Michigan) action.

— Another class action complaint, Newpage Wisconsin System v. CMS ERM, et al., was filed in 2009 in circuit court in Wood County, Wisconsin, against CMS Energy, CMS ERM, Cantera Gas Company, and others. The plaintiff is seeking full consideration damages, treble damages, costs, interest, and attorneys' fees.

— In 2005, J.P. Morgan Trust Company, in its capacity as Trustee of the FLI Liquidating Trust, filed an action in Kansas state court against CMS Energy, CMS MST, CMS Field Services, and others. The complaint alleges various claims under the Kansas Restraint of Trade Act. The plaintiff is seeking statutory full consideration damages for its purchases of natural gas in 2000 and 2001.

After removal to federal court, all of the cases described above were transferred to the MDL. CMS Energy was dismissed from the Learjet, Heartland, and J.P. Morgan cases in 2009, but other CMS Energy defendants remained parties. All CMS Energy defendants were dismissed from the Breckenridge case in 2009. In 2010, CMS Energy and Cantera Gas Company were dismissed from the Newpage case and the Arandell (Wisconsin) case was reinstated against CMS ERM. In July 2011, all claims against remaining CMS Energy defendants in the MDL cases were dismissed based on FERC preemption. Plaintiffs have filed appeals in all of the cases. The issues on appeal are whether the district court erred in dismissing the cases based on FERC preemption and denying the plaintiffs' motions for leave to amend their complaints to add a federal Sherman Act antitrust claim. The plaintiffs did not appeal the dismissal of CMS Energy as a defendant in these cases, but other CMS Energy entities remain as defendants.

These cases involve complex facts, a large number of similarly situated defendants with different factual positions, and multiple jurisdictions. Presently, any estimate of liability would be highly speculative; the amount of CMS Energy's possible loss would be based on widely varying models previously untested in this context. If the outcome after appeals is unfavorable, these cases could have a material adverse impact on CMS Energy's liquidity, financial condition, and results of operations.

Bay Harbor: As part of the development of Bay Harbor by certain subsidiaries of CMS Energy, and under an agreement with the MDEQ, third parties constructed a golf course and park over several abandoned CKD piles left over from the former cement plant operations on the Bay Harbor site. The third parties also undertook a series of response activities, including constructing a leachate collection system in one area where CKD-impacted groundwater was entering Little Traverse Bay. Leachate is produced when water enters into the CKD piles. In 2002, CMS Energy sold its interest in Bay Harbor, but retained its obligations under environmental indemnities entered into at the start of the project.

In 2005, the EPA, along with CMS Land and CMS Capital, voluntarily executed an Administrative Order on Consent under Superfund, and the EPA approved a Removal Action Work Plan to address contamination issues. Collection systems required under the plan have been installed and effectiveness monitoring of the systems at the shoreline is ongoing. CMS Land, CMS Capital, and the EPA agreed upon augmentation measures to address areas where pH measurements were not satisfactory. Several augmentation measures were implemented and completed in 2009, with the remaining measure completed in 2010.

In May 2011, CMS Energy received approval from the EPA on a revised scope of remedies that CMS Energy had submitted in December 2010. CMS Energy reached a tentative agreement with the MDEQ in December 2011 that identifies the final remedies at the site. The EPA notified the MDEQ in March 2012 that it had no objections to this tentative agreement, and in June 2012, CMS Energy and the MDEQ finalized the agreement. Following the execution of this agreement, a change in Michigan law was enacted that included additional provisions regarding monitoring and compliance requirements for certain contaminants. As a consequence, and as allowed by the agreement with the MDEQ, CMS Energy eliminated certain remedies from its remediation plan that were previously required under the agreement. CMS Energy also agreed to perform additional monitoring and to modify certain areas of the collection systems.

In 2010, the MDEQ issued an NPDES permit that authorizes CMS Land to discharge treated leachate into Little Traverse Bay. This permit requires renewal every five years. Discharge of treated leachate under the permit has commenced. In 2010, CMS Land also committed to investigate the potential for a deep injection well on the Bay Harbor site as an alternative long-term method of leachate disposal. The agreement requiring this investigation was amended in June 2012 to require that CMS Land perform this investigation only if CMS Land is unable to meet the requirements of its NPDES discharge permit. In 2008, the MDEQ and the EPA granted permits for CMS Land or its wholly owned subsidiary, Beeland Group LLC, to construct and operate an off-site deep injection well in Antrim County, Michigan, to dispose of leachate from Bay Harbor. Certain environmental groups, a local township, and a local county filed lawsuits appealing the permits and seeking an injunction. A temporary restraining order was issued by the trial court. The legal proceeding was stayed in 2009 and can be renewed by either party at any time. CMS Land no longer expects to incur costs related to these proposed deep injection wells at either the Bay Harbor site or in Antrim County.

Following these developments, CMS Energy reassessed its remediation strategy and anticipated costs, and determined that no adjustment was required to the liability recorded for CMS Energy's remaining obligations at the site.

Various claims have been brought against CMS Land or its affiliates, including CMS Energy, alleging environmental damage to property, loss of property value, insufficient disclosure of environmental matters, breach of agreement relating to access, or other matters. In October 2010, CMS Land and other parties received a demand for payment from the EPA in the amount of $7 million, plus interest, whereby the EPA is seeking recovery, as allowed under Superfund, of the EPA's response costs incurred at the Bay Harbor site. CMS Land communicated to the EPA in November 2010 that it does not believe that this is a valid claim.

CMS Energy has recorded a cumulative charge related to Bay Harbor of $225 million, which includes accretion expense. At June 30, 2012, CMS Energy had a recorded liability of $68 million for its remaining obligations. CMS Energy calculated this liability based on discounted projected costs, using a discount rate of 4.34 percent and an inflation rate of one percent on annual operating and maintenance costs. CMS Energy based the discount rate on the interest rate for 30-year U.S. Treasury securities at December 31, 2010. The undiscounted amount of the remaining obligation is $89 million. CMS Energy expects to pay $11 million during the remainder of 2012, $8 million in 2013, $5 million in 2014, $4 million in 2015, $4 million in 2016, and the remaining amount thereafter on long-term liquid disposal and operating and maintenance costs.

CMS Energy's estimate of response activity costs and the timing of expenditures could change if there are additional major changes in circumstances or assumptions, including but not limited to:

— inability to complete the present long-term water disposal strategy at a reasonable cost;

— requirements to alter the present long-term water disposal strategy upon expiration of the NPDES permit if the MDEQ or EPA identify a more suitable alternative;

— an increase in the number of contamination areas;

— different remediation techniques;

— the nature and extent of contamination;

— delays in the receipt of requested permits;

— delays following the receipt of any requested permits due to legal appeals of third parties;

— additional or new legal or regulatory requirements; or

— new or different landowner claims.

Depending on the size of any indemnity obligation or liability under environmental laws, an adverse outcome of this matter could have a material adverse effect on CMS Energy's liquidity and financial condition and could negatively affect CMS Energy's financial results. Although a liability for its present estimate of remaining response activity costs has been recorded, CMS Energy cannot predict the ultimate financial impact or outcome of this matter.

Equatorial Guinea Tax Claim: In January 2002, CMS Energy sold its oil, gas, and methanol investments in Equatorial Guinea. The government of Equatorial Guinea claims that CMS Energy owes $142 million in taxes, plus interest, in connection with the sale. CMS Energy has concluded that the government's tax claim is without merit. The government of Equatorial Guinea indicated through a request for arbitration in October 2011 that it still intends to pursue its claim. CMS Energy is vigorously contesting the claim, and cannot predict the financial impact or outcome of this matter.

Panhandle Tax Indemnification: CMS Energy recorded a liability in 2003 for an indemnification provided in conjunction with the sale of Panhandle. As of March 31, 2012 the statute of limitations had expired for this indemnification. Accordingly, CMS Energy eliminated the liability during the three months ended March 31, 2012 and recognized an after-tax benefit of $7 million in discontinued operations.

CONSUMERS ELECTRIC UTILITY CONTINGENCIES

Electric Environmental Matters: Consumers' operations are subject to environmental laws and regulations. Historically, Consumers has generally been able to recover, in customer rates, the costs to operate its facilities in compliance with these laws and regulations.

Cleanup and Solid Waste: Consumers expects to incur remediation and other response activity costs at a number of sites under NREPA. Consumers believes that these costs should be recoverable in rates, but cannot guarantee that outcome. Consumers estimates that its liability for NREPA sites will be between $4 million and $7 million. At June 30, 2012, Consumers had a recorded liability of $4 million, the minimum amount in the range of its estimated probable NREPA liability.

Consumers is a potentially responsible party at a number of contaminated sites administered under the Superfund. Superfund liability is joint and several. In addition to Consumers, many other creditworthy parties with substantial assets are potentially responsible with respect to the individual sites. In 2010, Consumers received official notification from the EPA that identified Consumers as a potentially responsible party at the Kalamazoo River Superfund site. The notification claimed that the EPA has reason to believe Consumers disposed of PCBs and arranged for the disposal and treatment of PCB-containing materials at portions of the site. Consumers responded to the EPA in 2010, stating that it has no information showing that it disposed of PCBs or arranged for disposal or treatment of PCB-containing material at portions of the site and requesting further information from the EPA before Consumers would commit to perform or finance cleanup activities at the site. In April 2011, Consumers received a follow-up letter from the EPA requesting that Consumers, as a potentially responsible party at the Kalamazoo River Superfund site, agree to participate in a removal action plan along with several other companies for an area of lower Portage Creek. The letter also indicated that under Sections 106 and 107 of Superfund, Consumers may be liable for reimbursement of the EPA's costs and potential penalties for noncompliance with any unilateral order that the EPA may issue requiring performance under the removal action plan. All parties, including Consumers, that were asked to participate in the removal action plan declined to accept liability. In August 2011, the EPA announced that it would proceed with the removal action plan and would continue to pursue potentially responsible parties to perform or pay for some or all of the work. The EPA has provided limited information regarding Consumers' potential responsibility for contamination at the site and has not yet given an indication of the share of any cleanup costs for which Consumers could be held responsible. Consumers continues to investigate the EPA's claim that it disposed of PCBs or arranged for disposal or treatment of PCB-containing material at portions of the site. Until further information is received from the EPA, Consumers is unable to estimate a range of potential liability for cleanup of the river.

Based on its experience, Consumers estimates that its share of the total liability for other known Superfund sites will be between $2 million and $8 million. Various factors, including the number of potentially responsible parties involved with each site, affect Consumers' share of the total liability. At June 30, 2012, Consumers had a recorded liability of $2 million for its share of the total liability at these sites, the minimum amount in the range of its estimated probable Superfund liability.

The timing of payments related to Consumers' remediation and other response activities at its Superfund and NREPA sites is uncertain. Consumers periodically reviews these cost estimates. Any significant change in the underlying assumptions, such as an increase in the number of sites, different remediation techniques, the nature and extent of contamination, and legal and regulatory requirements, could affect its estimates of NREPA and Superfund liability.

Ludington PCB: In 1998, during routine maintenance activities, Consumers identified PCB as a component in certain paint, grout, and sealant materials at Ludington. Consumers removed and replaced part of the PCB material with non-PCB material. Since proposing a plan to take action with respect to the remaining materials, Consumers has had several communications with the EPA. Consumers is not able to predict when the EPA will issue a final ruling and cannot predict the financial impact or outcome of this matter.

Electric Utility Plant Air Permit Issues and Notices of Violation: In 2007, Consumers received an NOV/FOV from the EPA alleging that fourteen utility boilers exceeded the visible emission limits in their associated air permits. Consumers has responded formally to the NOV/FOV denying the allegations. In addition, in 2008, Consumers received an NOV for three of its coal-fueled facilities alleging, among other things, violations of NSR PSD regulations relating to ten projects from 1986 to 1998 allegedly subject to review under the NSR. The EPA has alleged that some utilities have classified incorrectly major plant modifications as RMRR rather than seeking permits from the EPA or state regulatory agencies to modify their plants. Consumers responded to the information requests from the EPA on this subject in the past. Consumers believes that it has properly interpreted the requirements of RMRR.

Consumers is engaged in discussions with the EPA on all of these matters. Depending upon the outcome of these discussions, the EPA could bring legal action against Consumers and/or Consumers could be required to install additional pollution control equipment at some or all of its coal-fueled electric generating plants, surrender emission allowances, engage in Supplemental Environmental Projects, and/or pay fines. Additionally, Consumers would need to assess the viability of continuing operations at certain plants. The potential costs relating to these matters could be material and the extent of cost recovery cannot be reasonably estimated. Although Consumers cannot predict the financial impact or outcome of these matters, Consumers expects that it would be able to recover some or all of the costs in rates, consistent with the recovery of other reasonable costs of complying with environmental laws and regulations.

Nuclear Matters: The matters discussed in this section relate to Consumers' previously owned nuclear generating plants.

In 1997, a U.S. Court of Appeals decision confirmed that the DOE was to begin accepting deliveries of spent nuclear fuel for disposal by January 1998. Subsequent U.S. Court of Appeals litigation, in which Consumers and other utilities participated, had not been successful in producing more specific relief for the DOE's failure to accept the spent nuclear fuel. A number of court decisions have supported the right of utilities to pursue damage claims in the U.S. Court of Claims against the DOE for failure to take delivery of spent nuclear fuel. Consumers filed a complaint in 2002.

In July 2011, Consumers entered into an agreement with the DOE to settle its claims for $120 million. In September 2011, Consumers filed an application with the MPSC regarding the regulatory treatment of the settlement amount. For further information, see Note 4: Regulatory Matters.

As part of the agreement with the DOE, Consumers settled its liability to the DOE to fund the disposal of spent nuclear fuel used at Palisades and Big Rock before 1983. This liability, which totaled $163 million, comprised $44 million collected from customers for spent nuclear fuel disposal fees and $119 million of interest accrued on those fees, and was to be paid no later than when the DOE began accepting delivery of spent nuclear fuel. CMS Energy and Consumers classified the liability as long-term debt on their consolidated balance sheets.

Following the settlement, Consumers terminated its letter of credit to Entergy, which Consumers had provided as security for its retained obligation to the DOE in connection with its sale of Palisades and the Big Rock ISFSI to Entergy in 2007.

In its November 2010 electric rate case order, the MPSC had directed Consumers to establish an independent trust fund for the amount payable to the DOE. Following its settlement with the DOE, Consumers petitioned the MPSC to relieve it of the obligation to fund the trust.

CONSUMERS GAS UTILITY CONTINGENCIES

Gas Environmental Matters: Consumers expects to incur remediation and other response activity costs at a number of sites under the NREPA. These sites include 23 former MGP facilities. Consumers operated the facilities on these sites for some part of their operating lives. For some of these sites, Consumers has no present ownership interest or may own only a portion of the original site.

At June 30, 2012, Consumers had a recorded liability of $128 million for its remaining obligations for these sites. This amount represents the present value of long-term projected costs, using a discount rate of 2.57 percent and an inflation rate of 2.5 percent. Consumers based the discount rate on the interest rate for 20-year U.S. Treasury securities at December 31, 2011. The undiscounted amount of the remaining obligation is $140 million. Consumers expects to incur remediation and other response activity costs during the remainder of 2012 and in each of the next four years as follows:

									In Millions
	2012		2013		2014		2015		2016
Consumers
Remediation and other response activity costs		$      10		$      11		$      11		$      20		$      11

Consumers periodically reviews these cost estimates. Any significant change in the underlying assumptions, such as an increase in the number of sites, changes in remediation techniques, or legal and regulatory requirements, could affect Consumers' estimates of annual response activity costs and the MGP liability.

Pursuant to orders issued by the MPSC, Consumers defers its MGP-related remediation costs and recovers them from its customers over a ten-year period. At June 30, 2012, Consumers had a regulatory asset of $154 million related to the MGP sites.

CONSUMERS OTHER CONTINGENCIES

Other Environmental Matters: Consumers is initiating preliminary investigations during 2012 at a number of potentially contaminated sites it presently owns with the intention of determining whether any contamination exists and the extent of any identified contamination. The sites to be investigated include combustion turbine sites, generating sites, compressor stations, and remote storage tanks. At June 30, 2012, evidence of contamination led Consumers to plan remedial investigations and certain interim response measures at some of these sites. The cost of these activities has been incorporated into Consumers' estimated liability for NREPA sites. Consumers will continue its preliminary investigations at other potentially contaminated sites through the remainder of 2012. Consumers cannot predict an outcome at this stage of the investigations.

GUARANTEES

Presented in the following table are CMS Energy's and Consumers' guarantees at June 30, 2012:

								In Millions
Guarantee Description	Issue Date		Expiration Date		Maximum Obligation			Carrying Amount
CMS Energy, including Consumers
Indemnity obligations from asset sales and other agreements		Various		Various through September 2029		$       512	1		$      16
Guarantees and put options2		Various		Various through March 2021		60			1
Consumers
Indemnity obligations and other guarantees		Various		Various through September 2029		$      30			$      1

¹  The majority of this amount arises from stock and asset sale agreements under which CMS Energy or a subsidiary of CMS Energy, other than Consumers, indemnified the purchaser for losses resulting from various matters, including claims related to tax disputes, claims related to power purchase agreements, and defects in title to the assets or stock sold to the purchaser by CMS Energy subsidiaries. Except for items described elsewhere in this Note, CMS Energy believes the likelihood of material loss to be remote for the indemnity obligations not recorded as liabilities.

²  At June 30, 2012, the carrying amount of CMS Land's put option agreements with certain Bay Harbor property owners was less than $1 million. If CMS Land is required to purchase a Bay Harbor property under a put option agreement, it may sell the property to recover the amount paid under the put option agreement.

Presented in the following table is additional information regarding CMS Energy's and Consumers' guarantees:

Guarantee Description	How Guarantee Arose	Events That  Would Require Performance
CMS Energy, including Consumers
Indemnity obligations from asset	Stock and asset sale	Findings of misrepresentation,
sales and other agreements	agreements	breach of warranties, tax claims, and
		other specific events or
		circumstances
Guarantees	Normal operating	Nonperformance or non-payment by a
	activity	subsidiary under a related contract
Put options	Bay Harbor	Owners exercising put options requiring
	remediation efforts	CMS Land to purchase property
Consumers
Guarantees and indemnity	Normal operating	Nonperformance or claims made by third
obligations	activity	party under a related contract

CMS Energy, Consumers, and certain other subsidiaries of CMS Energy also enter into various agreements containing tax and other indemnity provisions for which they are unable to estimate the maximum potential obligation. These factors include unspecified exposure under certain agreements. CMS Energy and Consumers consider the likelihood that they would be required to perform or incur substantial losses related to these indemnities to be remote.

OTHER CONTINGENCIES

Other: In addition to the matters disclosed in this Note and Note 4: Regulatory Matters, there are certain other lawsuits and administrative proceedings before various courts and governmental agencies arising in the ordinary course of business to which CMS Energy, Consumers, and certain other subsidiaries of CMS Energy are parties. These other lawsuits and proceedings may involve personal injury, property damage, contracts, environmental matters, federal and state taxes, rates, licensing, employment, and other matters. Further, CMS Energy and Consumers occasionally self-report certain regulatory non-compliance matters that may or may not eventually result in administrative proceedings. CMS Energy and Consumers believe that the outcome of any one of these proceedings will not have a material adverse effect on their consolidated results of operations, financial condition, or liquidity.

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Regulatory Matters (Consumers Energy Company [Member])

6 Months Ended

Jun. 30, 2012

Consumers Energy Company [Member]

Regulatory Matters

4:     REGULATORY MATTERS

Rate matters are critical to Consumers. The Michigan Attorney General, ABATE, the MPSC Staff, and certain other parties typically participate in MPSC proceedings concerning Consumers and often appeal significant MPSC orders. Depending upon the specific issues, the outcomes of rate cases and proceedings, including judicial proceedings challenging MPSC orders or other actions, could have a material adverse effect on CMS Energy's and Consumers' liquidity, financial condition, and results of operations. Consumers cannot predict the outcome of these proceedings.

CONSUMERS' ELECTRIC UTILITY

Electric Rate Case: In June 2011, Consumers filed an application with the MPSC seeking an annual rate increase of $195 million, based on a 10.7 percent authorized return on equity, in order to recover new investment in system reliability, environmental compliance, and technology enhancements. Consumers self-implemented an annual rate increase of $118 million in December 2011, subject to refund with interest. In June 2012, the MPSC authorized an annual rate increase of $118 million, based on a 10.3 percent return on equity. Consumers has until September 2012 to file a reconciliation of total revenues collected during self-implementation to those that would have been collected under final rates. While it cannot predict the outcome of this case, Consumers does not consider it probable that a refund of its self-implemented rates will be required.

The annual rate increase authorized by the MPSC included a $20 million increase in annual depreciation expense resulting from the new depreciation rates that the MPSC approved in June 2011 in Consumers' electric depreciation case. These new depreciation rates went into effect with the June 2012 electric rate case order.

Also included in the authorized annual rate increase was the recovery of $14 million of development costs associated with Consumers' proposed 830-MW coal-fueled plant. The MPSC authorized Consumers to recover these costs over a three-year period. Consumers canceled its plans to build this plant in December 2011, after having written off its development costs of $22 million in 2010. At June 30, 2012, Consumers recorded a $14 million regulatory asset for the recovery of these costs with a corresponding benefit recognized in earnings.

Big Rock Nuclear Decommissioning: The MPSC and FERC regulate the recovery of Consumers' costs to decommission Big Rock. Subsequent to 2000, Consumers stopped funding a Big Rock decommissioning trust fund because the collection period for an MPSC-authorized decommissioning surcharge expired.

In 2010, the MPSC concluded that certain revenues collected during a statutory rate freeze from 2001 through 2003 should have been deposited in the Big Rock decommissioning trust fund and ordered Consumers to refund $85 million of revenue collected in excess of decommissioning costs plus interest. Consumers completed this refund in 2011. Consumers filed an appeal with the Michigan Court of Appeals in 2010 to dispute the MPSC's conclusion that the collections received during the rate freeze should be subject to refund. In January 2012, the Michigan Court of Appeals rejected Consumers' appeal. In March 2012, Consumers filed an appeal with the Michigan Supreme Court to dispute this decision. The Michigan Supreme Court denied Consumers' appeal in June 2012.

Consumers has an $85 million regulatory asset recorded for $30 million it paid to Entergy to assume ownership responsibility for the Big Rock ISFSI and for $55 million of nuclear fuel storage costs it incurred as a result of the DOE's failure to accept nuclear fuel. Consumers filed a complaint against the DOE in 2002 for this failure. In July 2011, Consumers entered into an agreement with the DOE to settle its claims for $120 million; Consumers recorded a $120 million regulatory liability related to this settlement. In September 2011, Consumers filed an application with the MPSC requesting authority to utilize $85 million of the settlement amount as recovery of its regulatory asset, and to refund to customers $23 million previously collected through rates for spent nuclear fuel costs. Various parties are opposing this request, seeking additional refunds, or seeking other relief. If the MPSC concludes that Consumers may retain any portion of the remaining $12 million of the settlement amount, Consumers will recognize that amount in earnings. For further information, see Note 3: Contingencies and Commitments – Consumers Electric Utility Contingencies – Nuclear Matters.

Electric Revenue Decoupling Mechanism: The MPSC's 2009 electric rate case order authorized Consumers to implement an electric revenue decoupling mechanism, subject to certain conditions. This decoupling mechanism, which was extended through November 2011 in the 2010 electric rate case order, allowed Consumers to adjust future electric rates to compensate for changes in sales volumes resulting from the difference between the level of average sales per customer adopted in the order and actual average sales per customer. Various parties have filed appeals concerning Consumers' electric revenue decoupling mechanism.

In March 2011, Consumers filed its first reconciliation of the electric revenue decoupling mechanism with the MPSC, requesting recovery of $27 million from customers for the period December 2009 through November 2010. In February 2012, the administrative law judge recommended that the MPSC approve Consumers' reconciliation of the electric revenue decoupling mechanism for the full amount of its request. Consumers filed its second reconciliation of the electric revenue decoupling mechanism in March 2012, requesting recovery of $32 million from customers for the period December 2010 through November 2011.

In April 2012, the Michigan Court of Appeals ruled in an appeal filed by ABATE that disputed the MPSC's decision to authorize an electric revenue decoupling mechanism for Detroit Edison. The Court concluded that the MPSC lacks statutory authority to approve or direct the use of a revenue decoupling mechanism for electric providers. Consumers cannot predict whether this decision will be appealed to the Michigan Supreme Court or the timing or outcome of any such appeal. As a result, Consumers determined that it no longer met the accounting criteria for recognition of a regulatory asset under an alternative revenue program, and wrote off its $59 million electric revenue decoupling mechanism regulatory asset at March 31, 2012. Although the case before the Court of Appeals related specifically to Detroit Edison, Consumers will continue to pursue all of its legal and regulatory avenues to recover its decoupling revenues.

As a result of the Court of Appeals decision in the Detroit Edison case, the MPSC requested all interested parties to submit comments regarding the future use of electric revenue decoupling mechanisms in Michigan. In May 2012, Consumers filed its comments with the MPSC. Consumers is unable to predict the outcome of this matter.

Renewable Energy Plan: In June 2011, Consumers filed with the MPSC its second annual report and reconciliation for its renewable energy plan, requesting approval of its plan costs for 2010. In March 2012, the MPSC approved Consumers' renewable energy plan reconciliation.

Consumers filed its third annual report and reconciliation with the MPSC in June 2012, requesting approval of its reconciliation of renewable energy plan costs for 2011.

In October 2011, Consumers filed an application for the biennial review and approval of its renewable energy plan. In May 2012, the MPSC approved Consumers' settlement agreement in this case, reducing the renewable energy surcharge by an annual amount of $3 million, to $20 million.

Energy Optimization Plan: In August 2011, Consumers filed an amended energy optimization plan with the MPSC, requesting approval of the additional spending necessary to exceed the statutory savings targets for 2012 through 2015 specified in the 2008 Energy Law. The MPSC approved Consumers' amended energy optimization plan in April 2012.

In May 2012, Consumers filed its third annual report and reconciliation for its energy optimization plan, requesting approval of Consumers' reconciliation of energy optimization plan costs for 2011. Consumers also requested approval to collect $15 million from customers as an incentive payment for exceeding statutory savings targets under both its gas and electric energy optimization plans during 2011. Consumers estimates that, through its gas and electric energy optimization programs, its customers realized $115 million in energy savings during 2011.

CONSUMERS' GAS UTILITY

Gas Rate Case: In September 2011, Consumers filed an application with the MPSC seeking an annual rate increase of $49 million, based on a 10.7 percent authorized return on equity, in order to recover investments made to enhance safety, system reliability, and operational efficiencies that improve service to customers. Consumers self-implemented an annual rate increase of $23 million in March 2012, subject to refund with interest.

In June 2012, the MPSC approved Consumers' settlement agreement and authorized an annual rate increase of $16 million, based on a 10.3 percent return on equity. The MPSC directed Consumers to refund to customers the difference between the rates it self-implemented in March 2012 and the rates authorized in the June 2012 order, plus interest, subject to a reconciliation proceeding. At June 30, 2012, CMS Energy and Consumers had a $1 million regulatory liability recorded for this refund.

Gas Revenue Decoupling Mechanism: The MPSC's 2009 gas rate case order authorized Consumers to implement a gas revenue decoupling mechanism, subject to certain conditions. This decoupling mechanism, which was extended through April 2012, allowed Consumers to adjust future gas rates to compensate for changes in sales volumes resulting from the difference between the level of average sales per customer adopted in the order and actual average weather-adjusted sales per customer. This mechanism was not affected by the Court of Appeals decision on electric decoupling.

In September 2011, Consumers filed its first reconciliation of the gas revenue decoupling mechanism with the MPSC, requesting recovery of $16 million from customers for the period June 2010 through May 2011. The matter remains pending before the MPSC. Certain parties have filed in opposition to this reconciliation.

At June 30, 2012, Consumers had a $33 million non-current regulatory asset recorded for gas revenue decoupling. If the MPSC were to reject all or a major portion of Consumers' requested recovery from its gas revenue decoupling mechanism or if the recovery period were to be substantially delayed, Consumers could be required to write off all or portions of the related regulatory asset.

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Earnings Per Share - CMS Energy

6 Months Ended

Jun. 30, 2012

Earnings Per Share - CMS Energy [Abstract]

Earnings Per Share - CMS Energy

6:     EARNINGS PER SHARE – CMS ENERGY

Presented in the following table are CMS Energy's basic and diluted EPS computations based on income from continuing operations:

In Millions, Except Per Share Amounts
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
Income Available to Common Stockholders
Income from continuing operations	$	101	$	101	$	161	$	234
Less income attributable to noncontrolling interest		1		1		1		1
Income from Continuing Operations Available to Common Stockholders – Basic and Diluted	$	100	$	100	$	160	$	233
Average Common Shares Outstanding
Weighted average shares – basic		261.2		250.3		258.4		250.2
Add dilutive contingently convertible securities		5.9		11.3		8.3		11.0
Add dilutive non-vested stock awards and options		1.1		0.3		1.0		0.3
Weighted average shares – diluted		268.2		261.9		267.7		261.5
Income from Continuing Operations per Average Common Share Available to Common Stockholders
Basic	$	0.38	$	0.40	$	0.61	$	0.93
Diluted		0.37		0.38		0.59		0.89

CONTINGENTLY CONVERTIBLE SECURITIES

When CMS Energy has earnings from continuing operations, its contingently convertible securities dilute EPS to the extent that the conversion value of a security, which is based on the average market price of CMS Energy common stock, exceeds the principal value of that security.

NON-VESTED STOCK AWARDS

CMS Energy's non-vested stock awards are composed of participating and non-participating securities. The participating securities accrue cash dividends when common stockholders receive dividends. Since the recipient is not required to return the dividends to CMS Energy if the recipient forfeits the award, the non-vested stock awards are considered participating securities. As such, the participating non-vested stock awards were included in the computation of basic EPS. The non-participating securities accrue stock dividends that vest concurrently with the stock award. If the recipient forfeits the award, the stock dividends accrued on the non-participating securities are also forfeited. Accordingly, the non-participating awards and stock dividends were included in the computation of diluted EPS, but not basic EPS.

CONVERTIBLE DEBENTURES

CMS Energy redeemed all of its outstanding 7.75 percent Trust Preferred Securities in February 2012.  For the six-month period ended June 30, 2012 and for each of the three-month and six-month periods ended June 30, 2011, the Trust Preferred Securities would have increased diluted EPS had they been included in the calculation. Using the if-converted method, the debentures would have had the following impacts on the calculation of diluted EPS:

In Millions
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
Increase to numerator from assumed reduction in interest expense		$        -		$        -		$        -		$        1
Increase to denominator from assumed conversion of debentures into common shares		-		0.7		0.2		0.7

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Fair Value Measurements (Assets and Liabilties Measured at Fair Value on a Recurring Basis) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Cash equivalents	$ 141	$ 109
Restricted cash equivalents	14	15
Nonqualified deferred compensation plan assets	5	4
Available for sale - fair value	127	113
Commodity contracts	7	3
Asset Total	294	245
Nonqualified deferred compensation plan liabilities	5	4
Commodity contracts	6	7
Liabilities Total	11	11
Consumers Energy Company [Member]
Cash equivalents	122	56
Restricted cash equivalents	14	14
Nonqualified deferred compensation plan assets	3	3
Available for sale - fair value	116	109
Commodity contracts	5	2
Asset Total	260	185
Nonqualified deferred compensation plan liabilities	3	3
Liabilities Total	3	3
Fair Value, Inputs, Level 1 [Member]
Cash equivalents	141	109
Restricted cash equivalents	14	15
Nonqualified deferred compensation plan assets	5	4
Available for sale - fair value	127
Commodity contracts	1	1
Asset Total	288	243
Nonqualified deferred compensation plan liabilities	5	4
Commodity contracts
Liabilities Total	5	4
Fair Value, Inputs, Level 1 [Member] | Consumers Energy Company [Member]
Cash equivalents	122	56
Restricted cash equivalents	14	14
Nonqualified deferred compensation plan assets	3	3
Available for sale - fair value	116
Asset Total	255	183
Nonqualified deferred compensation plan liabilities	3	3
Liabilities Total	3	3
Fair Value, Inputs, Level 2 [Member]
Cash equivalents
Restricted cash equivalents
Nonqualified deferred compensation plan assets
Commodity contracts	1
Asset Total	1
Nonqualified deferred compensation plan liabilities
Commodity contracts	4	3
Liabilities Total	4	3
Fair Value, Inputs, Level 2 [Member] | Consumers Energy Company [Member]
Cash equivalents
Restricted cash equivalents
Nonqualified deferred compensation plan assets
Available for sale - fair value
Asset Total
Nonqualified deferred compensation plan liabilities
Liabilities Total
Fair Value, Inputs, Level 3 [Member]
Cash equivalents
Restricted cash equivalents
Nonqualified deferred compensation plan assets
Commodity contracts	5	2
Asset Total	5	2
Nonqualified deferred compensation plan liabilities
Commodity contracts	2	4
Liabilities Total	2	4
Fair Value, Inputs, Level 3 [Member] | Consumers Energy Company [Member]
Cash equivalents
Restricted cash equivalents
Nonqualified deferred compensation plan assets
Available for sale - fair value
Commodity contracts	5	2
Asset Total	5	2
Nonqualified deferred compensation plan liabilities
Liabilities Total
Supplemental Executive Retirement Plan [Member] | Cash Equivalents [Member]
Available for sale - fair value		1
Supplemental Executive Retirement Plan [Member] | Cash Equivalents [Member] | Consumers Energy Company [Member]
Available for sale - fair value		1
Supplemental Executive Retirement Plan [Member] | Mutual Fund [Member]
Available for sale - fair value	127	113
Supplemental Executive Retirement Plan [Member] | Mutual Fund [Member] | Consumers Energy Company [Member]
Available for sale - fair value	86	74
Supplemental Executive Retirement Plan [Member] | Fair Value, Inputs, Level 1 [Member] | Cash Equivalents [Member]
Available for sale - fair value		1
Supplemental Executive Retirement Plan [Member] | Fair Value, Inputs, Level 1 [Member] | Cash Equivalents [Member] | Consumers Energy Company [Member]
Available for sale - fair value		1
Supplemental Executive Retirement Plan [Member] | Fair Value, Inputs, Level 1 [Member] | Mutual Fund [Member]
Available for sale - fair value	127	113
Supplemental Executive Retirement Plan [Member] | Fair Value, Inputs, Level 1 [Member] | Mutual Fund [Member] | Consumers Energy Company [Member]
Available for sale - fair value	86	74
Supplemental Executive Retirement Plan [Member] | Fair Value, Inputs, Level 2 [Member] | Cash Equivalents [Member]
Available for sale - fair value
Supplemental Executive Retirement Plan [Member] | Fair Value, Inputs, Level 2 [Member] | Cash Equivalents [Member] | Consumers Energy Company [Member]
Available for sale - fair value
Supplemental Executive Retirement Plan [Member] | Fair Value, Inputs, Level 2 [Member] | Mutual Fund [Member]
Available for sale - fair value
Supplemental Executive Retirement Plan [Member] | Fair Value, Inputs, Level 2 [Member] | Mutual Fund [Member] | Consumers Energy Company [Member]
Available for sale - fair value
Supplemental Executive Retirement Plan [Member] | Fair Value, Inputs, Level 3 [Member] | Cash Equivalents [Member]
Available for sale - fair value
Supplemental Executive Retirement Plan [Member] | Fair Value, Inputs, Level 3 [Member] | Cash Equivalents [Member] | Consumers Energy Company [Member]
Available for sale - fair value
Supplemental Executive Retirement Plan [Member] | Fair Value, Inputs, Level 3 [Member] | Mutual Fund [Member]
Available for sale - fair value
Supplemental Executive Retirement Plan [Member] | Fair Value, Inputs, Level 3 [Member] | Mutual Fund [Member] | Consumers Energy Company [Member]
Available for sale - fair value
CMS Energy Common Stock [Member] | Consumers Energy Company [Member]
Available for sale - fair value	30	35
CMS Energy Common Stock [Member] | Fair Value, Inputs, Level 1 [Member] | Consumers Energy Company [Member]
Available for sale - fair value	30	35
CMS Energy Common Stock [Member] | Fair Value, Inputs, Level 2 [Member] | Consumers Energy Company [Member]
Available for sale - fair value
CMS Energy Common Stock [Member] | Fair Value, Inputs, Level 3 [Member] | Consumers Energy Company [Member]
Available for sale - fair value

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Notes Receivable (Current and Non-Current) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Current notes receivable	$ 40	$ 49
Noncurrent notes receivable	461	462
Total notes receivable	501	511
Consumers Energy Company [Member]
Current notes receivable	13	23
Noncurrent notes receivable	1	1
Total notes receivable	14	24
EnerBank USA [Member]
Current notes receivable	26	19
Noncurrent notes receivable	460	461
Other [Member]
Current notes receivable	14	30
Noncurrent notes receivable	$ 1	$ 1

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Income Taxes

6 Months Ended

Jun. 30, 2012

Income Taxes

11:  INCOME TAXES

Presented in the following table is a reconciliation of the statutory U.S. federal income tax rate to the effective income tax rate from continuing operations, excluding noncontrolling interests:

Six Months Ended June 30	2012			2011
CMS Energy, including Consumers
U.S. federal income tax rate		35.0	%		35.0	%
Increase (decrease) in income taxes from:
MCIT law change, net of federal expense		-			(9.9	)
Other state and local income taxes, net of federal benefit		4.7			3.5
Other, net		(0.2	)		(1.4	)
Effective income tax rate		39.5	%		27.2	%
Consumers
U.S. federal income tax rate		35.0	%		35.0	%
Increase (decrease) in income taxes from:
State and local income taxes, net of federal benefit		5.3			3.4
Other, net		(0.3	)		(1.4	)
Effective income tax rate		40.0	%		37.0	%

In May 2012, the Internal Revenue Service completed its audit of CMS Energy and its subsidiaries for 2008 and 2009, as well as its audit of research and development tax credit claims for 2001 through 2009. The audits resulted in a $45 million increase in the net operating loss carryforward. The impact to net income as a result of the completion of the audits was $1 million.

Consumers Energy Company [Member]

Income Taxes

11:  INCOME TAXES

Presented in the following table is a reconciliation of the statutory U.S. federal income tax rate to the effective income tax rate from continuing operations, excluding noncontrolling interests:

Six Months Ended June 30	2012			2011
CMS Energy, including Consumers
U.S. federal income tax rate		35.0	%		35.0	%
Increase (decrease) in income taxes from:
MCIT law change, net of federal expense		-			(9.9	)
Other state and local income taxes, net of federal benefit		4.7			3.5
Other, net		(0.2	)		(1.4	)
Effective income tax rate		39.5	%		27.2	%
Consumers
U.S. federal income tax rate		35.0	%		35.0	%
Increase (decrease) in income taxes from:
State and local income taxes, net of federal benefit		5.3			3.4
Other, net		(0.3	)		(1.4	)
Effective income tax rate		40.0	%		37.0	%

In May 2012, the Internal Revenue Service completed its audit of CMS Energy and its subsidiaries for 2008 and 2009, as well as its audit of research and development tax credit claims for 2001 through 2009. The audits resulted in a $45 million increase in the net operating loss carryforward. The impact to net income as a result of the completion of the audits was $1 million.

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Financings and Capitalization (Tables)

6 Months Ended

Jun. 30, 2012

Summary of Major Long-Term Debt Transactions

	Principal (In Millions)		Interest Rate			Issue/Retirement Date		Maturity Date
Debt Issuances
CMS Energy
Senior notes		$      300		5.05	%		March 2012		March 2022
Term loan facility1,2		30		variable			February 2012		December 2016
Consumers
FMB		375		2.85	%		May 2012		May 2022
Total		$      705
Debt Retirements
CMS Energy
Contingently convertible senior notes3		$      226		2.88	%		January 2012 and April 2012		December 2024
Trust Preferred Securities		29		7.75	%		February 2012		July 2027
Consumers
FMB		300		5.00	%		February 2012		February 2012
FMB		375		5.38	%		May 2012		April 2013
Total		$      930

¹  In December 2011, CMS Energy entered into a $180 million term loan credit agreement that provides for delayed draws through July 20, 2012. Outstanding borrowings bear interest at an annual interest rate of LIBOR plus 2.5 percent. 

²  CMS Energy used these proceeds to retire the 7.75 percent Trust Preferred Securities.

³  CMS Energy's contingently convertible notes. See the "Contingently Convertible Securities" section in this Note for further discussion of the conversions.

Revolving Credit Facilities

In Millions
Expiration Date	Amount of Facility		Amount Borrowed		Letters of Credit Outstanding		Amount Available
CMS Energy
March 31, 20161		$    550		$    25		$      2		$    523
Consumers
March 31, 20162		$    500		$       -		$      3		$    497
April 18, 20172		150		-		-		150
September 9, 20142		30		-		30		-

¹  Obligations under this facility are secured by Consumers common stock. CMS Energy's average borrowings during the six months ended June 30, 2012 totaled $13 million, with a weighted-average annual interest rate of 2.27 percent, representing LIBOR plus 2.00 percent.

²  Obligations under this facility are secured by FMBs of Consumers.

Contingently Convertible Securities

Security	Maturity		Outstanding (In Millions)			Adjusted Conversion Price		Adjusted Trigger Price
5.50% senior notes		2029		$	172		13.94		18.12

Conversions of Contingently Convertible Securities Details

	Conversion Date		Principal Converted (In Millions)		Conversion Value per $1,000 of principal		Shares of Common Stock Issued on Settlement		Cash Paid on Settlement (In Millions)
2.875% senior notes due 2024		January 2012		$        73		$    1,738.99		2,464,138		$        73
		April 2012		153		1,774.98		5,381,349		153

Consumers Energy Company [Member]

Summary of Major Long-Term Debt Transactions

	Principal (In Millions)		Interest Rate			Issue/Retirement Date		Maturity Date
Debt Issuances
CMS Energy
Senior notes		$      300		5.05	%		March 2012		March 2022
Term loan facility1,2		30		variable			February 2012		December 2016
Consumers
FMB		375		2.85	%		May 2012		May 2022
Total		$      705
Debt Retirements
CMS Energy
Contingently convertible senior notes3		$      226		2.88	%		January 2012 and April 2012		December 2024
Trust Preferred Securities		29		7.75	%		February 2012		July 2027
Consumers
FMB		300		5.00	%		February 2012		February 2012
FMB		375		5.38	%		May 2012		April 2013
Total		$      930

¹  In December 2011, CMS Energy entered into a $180 million term loan credit agreement that provides for delayed draws through July 20, 2012. Outstanding borrowings bear interest at an annual interest rate of LIBOR plus 2.5 percent.

²  CMS Energy used these proceeds to retire the 7.75 percent Trust Preferred Securities.

³  CMS Energy's contingently convertible notes. See the "Contingently Convertible Securities" section in this Note for further discussion of the conversions.

Revolving Credit Facilities

In Millions
Expiration Date	Amount of Facility		Amount Borrowed		Letters of Credit Outstanding		Amount Available
CMS Energy
March 31, 20161		$    550		$    25		$      2		$    523
Consumers
March 31, 20162		$    500		$       -		$      3		$    497
April 18, 20172		150		-		-		150
September 9, 20142		30		-		30		-

¹  Obligations under this facility are secured by Consumers common stock. CMS Energy's average borrowings during the six months ended June 30, 2012 totaled $13 million, with a weighted-average annual interest rate of 2.27 percent, representing LIBOR plus 2.00 percent.

²  Obligations under this facility are secured by FMBs of Consumers.

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Derivative Instruments (Narrative) (Details) (USD $) In Millions, unless otherwise specified			3 Months Ended		6 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2012 Financial Transmission Right [Member] Consumers Energy Company [Member]	Jun. 30, 2011 Financial Transmission Right [Member] Consumers Energy Company [Member]	Jun. 30, 2012 Financial Transmission Right [Member] Consumers Energy Company [Member]	Jun. 30, 2011 Financial Transmission Right [Member] Consumers Energy Company [Member]	Jun. 30, 2012 Other Assets [Member] Commodity Contracts [Member]	Dec. 31, 2011 Other Assets [Member] Commodity Contracts [Member]	Jun. 30, 2012 Other Assets [Member] Commodity Contracts [Member] Consumers Energy Company [Member]	Dec. 31, 2011 Other Assets [Member] Commodity Contracts [Member] Consumers Energy Company [Member]	Jun. 30, 2012 Other Liabilities [Member] Commodity Contracts [Member]	Dec. 31, 2011 Other Liabilities [Member] Commodity Contracts [Member]	Jun. 30, 2012 Other Liabilities [Member] Commodity Contracts [Member] Consumers Energy Company [Member]
Derivative Assets							$ 7	$ 3	$ 5	$ 2
Derivative Liabilities (Less than at 6/30/12 for Consumers)											6	7	1
Gain Or Loss Deferred In Regulatory Accounts			9	2	7	2
Derivative Liabilities Subject to Credit-Related-Contingent Features	$ 3	$ 4

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Financings and Capitalization (Short-term Borrowings) (Details) (Short-term Borrowings [Member], Consumers Energy Company [Member], USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Short-term Borrowings [Member] | Consumers Energy Company [Member]
Accounts receivable sales facility, maximum borrowing capacity	$ 250
Accounts receivable sales facility, current borrowing capacity	250
Maximum outstanding during the period	0
Average short-term borrowings	$ 16
Weighted average annual interest rate	0.90%

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Consolidated Statements of Comprehensive Income (Parenthetical) (Consumers Energy Company [Member], USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Consumers Energy Company [Member]
Unrealized gain (loss) on investments, tax expense (tax benefit)	$ (2)	$ (1)

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Basis of Presentation

6 Months Ended

Jun. 30, 2012

Basis of Presentation

These interim consolidated financial statements have been prepared by CMS Energy and Consumers in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. As a result, CMS Energy and Consumers have condensed or omitted certain information and note disclosures normally included in consolidated financial statements prepared in accordance with GAAP. CMS Energy and Consumers have reclassified certain prior period amounts to conform to the presentation in the current period. In management's opinion, the unaudited information contained in this report reflects all adjustments of a normal recurring nature necessary to ensure the fair presentation of financial position, results of operations, and cash flows for the periods presented. The notes to the consolidated financial statements and the related consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in the 2011 Form 10-K. Due to the seasonal nature of CMS Energy's and Consumers' operations, the results presented for this interim period are not necessarily indicative of results to be achieved for the fiscal year.

Consumers Energy Company [Member]

Basis of Presentation

These interim consolidated financial statements have been prepared by CMS Energy and Consumers in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. As a result, CMS Energy and Consumers have condensed or omitted certain information and note disclosures normally included in consolidated financial statements prepared in accordance with GAAP. CMS Energy and Consumers have reclassified certain prior period amounts to conform to the presentation in the current period. In management's opinion, the unaudited information contained in this report reflects all adjustments of a normal recurring nature necessary to ensure the fair presentation of financial position, results of operations, and cash flows for the periods presented. The notes to the consolidated financial statements and the related consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in the 2011 Form 10-K. Due to the seasonal nature of CMS Energy's and Consumers' operations, the results presented for this interim period are not necessarily indicative of results to be achieved for the fiscal year.

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Earnings Per Share - CMS Energy (Tables)

6 Months Ended

Jun. 30, 2012

Earnings Per Share - CMS Energy [Abstract]

Basic and Diluted EPS Computation

In Millions, Except Per Share Amounts
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
Income Available to Common Stockholders
Income from continuing operations	$	101	$	101	$	161	$	234
Less income attributable to noncontrolling interest		1		1		1		1
Income from Continuing Operations Available to Common Stockholders – Basic and Diluted	$	100	$	100	$	160	$	233
Average Common Shares Outstanding
Weighted average shares – basic		261.2		250.3		258.4		250.2
Add dilutive contingently convertible securities		5.9		11.3		8.3		11.0
Add dilutive non-vested stock awards and options		1.1		0.3		1.0		0.3
Weighted average shares – diluted		268.2		261.9		267.7		261.5
Income from Continuing Operations per Average Common Share Available to Common Stockholders
Basic	$	0.38	$	0.40	$	0.61	$	0.93
Diluted		0.37		0.38		0.59		0.89

Schedule of Potential Impacts on the Calculation of Diluted EPS using the If-Converted Method

In Millions
	Three Months Ended				Six Months Ended
June 30	2012		2011		2012		2011
Increase to numerator from assumed reduction in interest expense		$        -		$        -		$        -		$        1
Increase to denominator from assumed conversion of debentures into common shares		-		0.7		0.2		0.7

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Regulatory Matters (Narrative) (Details) (USD $) In Millions, unless otherwise specified			1 Months Ended	12 Months Ended			1 Months Ended															1 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Dec. 31, 2010 Consumers Energy Company [Member]	Dec. 31, 2011 Consumers Energy Company [Member]	Jun. 30, 2012 Consumers Energy Company [Member]	May 31, 2012 Consumers Energy Company [Member]	Jun. 30, 2012 2011 Electric Rate Case [Member] Consumers Energy Company [Member]	Dec. 31, 2011 2011 Electric Rate Case [Member] Consumers Energy Company [Member]	Jun. 30, 2011 2011 Electric Rate Case [Member] Consumers Energy Company [Member]	Mar. 31, 2011 2009-2010 Electric Revenue Decoupling Mechanism [Member] Consumers Energy Company [Member]	Mar. 31, 2012 2010-2011 Electric Revenue Decoupling Mechanism [Member] Consumers Energy Company [Member]	Mar. 31, 2012 Electric Revenue Decoupling Mechanism [Member] Consumers Energy Company [Member]	Jun. 30, 2012 2011 Gas Rate Case [Member] Consumers Energy Company [Member]	Mar. 31, 2012 2011 Gas Rate Case [Member] Consumers Energy Company [Member]	Sep. 30, 2011 2011 Gas Rate Case [Member] Consumers Energy Company [Member]	Sep. 30, 2011 2010-2011 Gas Revenue Decoupling Mechanism [Member] Consumers Energy Company [Member]	Jun. 30, 2012 Gas Revenue Decoupling Mechanism [Member] Consumers Energy Company [Member]	Jun. 30, 2012 Big Rock Decommissioning And Related Costs [Member] Consumers Energy Company [Member]	Sep. 30, 2011 Big Rock Decommissioning And Related Costs [Member] Consumers Energy Company [Member]	Apr. 30, 2010 Big Rock Decommissioning And Related Costs [Member] Consumers Energy Company [Member]	Jun. 30, 2012 DOE Settlement [Member] Consumers Energy Company [Member]	Jul. 31, 2011 Nuclear Fuel Disposal Cost [Member] Consumers Energy Company [Member]
Annual Rate Increase Authorized by the MPSC							$ 118						$ 16
Annual Rate Increase Requested by Consumers									195						49
Requested Recovery										27	32					16
Write-Off of Regulatory Asset												59
Regulatory assets, noncurrent	2,335	2,466		2,466	2,335												33	85
Regulatory asset							14
Amount Paid to Transfer Ownership and Responsibility																		30
Regulatory Liability, Current	122	125		125	122								1								120
Regulatory Liability, Noncurrent	1,933	1,875		1,875	1,933
Amended Annual Renewable Energy Plan Surcharge Billed To Customers						20
Litigation Settlement, Gross																						120
Proposed Recovery Of Regulatory Asset																			85
Proposed Refund Of Spent Nuclear Fuel Disposal Costs Collected																			23
Remaining Portion of Litigation Settlement																			12
Revenue Collected in Excess of the Costs Incurred to Decommission Big Rock, Plus Interest, and Ordered for Refund																				85
Nuclear Fuel Storage Costs Incurred as a Result of the DOE's Failure to Accept Spent Nuclear Fuel																		55
Annual Amount Of Reduction Of Renewable Energy Plan Surcharge Billed To Customers						3
Energy Optimization Incentive Requested for Exceeding 2011 Savings Targets						15
Customer Energy Optimization Savings for 2011				115
Increase in Annual Depreciation Expense Authorized by the MPSC							20
Rate of Return on Equity Requested by Consumers									10.70%						10.70%
Public Utilities, Property, Plant and Equipment, Amount of Loss (Recovery) on Plant Abandonment			22				(14)
Annual Rate Increase Self-Implemented by Consumers								$ 118						$ 23
Rate of Return On Equity Authorized by the MPSC							10.30%
Rate of Return Authorized by the MPSC													10.30%

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Retirement Benefits

6 Months Ended

Jun. 30, 2012

Retirement Benefits

10:  RETIREMENT BENEFITS

CMS Energy and Consumers provide pension, OPEB, and other retirement benefits to employees under a number of different plans.

Presented in the following tables are the costs and other changes in plan assets and benefit obligations incurred in CMS Energy's and Consumers' retirement benefits plans:

							In Millions
	Pension
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Net periodic pension cost
Service cost		$     12			$     12			$     24			$     24
Interest expense		25			25			50			50
Expected return on plan assets		(32	)		(28	)		(63	)		(56	)
Amortization of:
Net loss		19			15			38			31
Prior service cost		2			2			3			3
Net periodic pension cost		$     26			$     26			$     52			$     52
Consumers
Net periodic pension cost
Service cost		$     11			$     11			$     23			$     23
Interest expense		24			25			48			49
Expected return on plan assets		(31	)		(28	)		(61	)		(55	)
Amortization of:
Net loss		19			16			37			31
Prior service cost		2			2			3			3
Net periodic pension cost		$     25			$     26			$     50			$     51

CMS Energy's and Consumers' expected long-term rate of return on Pension Plan assets is 7.75 percent. For the twelve months ended June 30, 2012, the actual return on Pension Plan assets was 4.7 percent, and for the twelve months ended June 30, 2011, the actual return was 19.5 percent. The expected rate of return is an assumption about long-term asset performance that CMS Energy and Consumers review annually for reasonableness and appropriateness.

							In Millions
	OPEB
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Net periodic OPEB cost
Service cost		$       8			$       6			$     16			$     13
Interest expense		20			19			41			38
Expected return on plan assets		(16	)		(16	)		(33	)		(33	)
Amortization of:
Net loss		12			8			23			16
Prior service credit		(5	)		(5	)		(10	)		(10	)
Net periodic OPEB cost		$     19			$     12			$     37			$     24
Consumers
Net periodic OPEB cost
Service cost		$       8			$       7			$     16			$     13
Interest expense		20			19			40			37
Expected return on plan assets		(16	)		(16	)		(31	)		(31	)
Amortization of:
Net loss		12			8			23			16
Prior service credit		(5	)		(5	)		(10	)		(10	)
Net periodic OPEB cost		$     19			$     13			$     38			$     25

Consumers Energy Company [Member]

Retirement Benefits

10:  RETIREMENT BENEFITS

CMS Energy and Consumers provide pension, OPEB, and other retirement benefits to employees under a number of different plans.

Presented in the following tables are the costs and other changes in plan assets and benefit obligations incurred in CMS Energy's and Consumers' retirement benefits plans:

							In Millions
	Pension
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Net periodic pension cost
Service cost		$     12			$     12			$     24			$     24
Interest expense		25			25			50			50
Expected return on plan assets		(32	)		(28	)		(63	)		(56	)
Amortization of:
Net loss		19			15			38			31
Prior service cost		2			2			3			3
Net periodic pension cost		$     26			$     26			$     52			$     52
Consumers
Net periodic pension cost
Service cost		$     11			$     11			$     23			$     23
Interest expense		24			25			48			49
Expected return on plan assets		(31	)		(28	)		(61	)		(55	)
Amortization of:
Net loss		19			16			37			31
Prior service cost		2			2			3			3
Net periodic pension cost		$     25			$     26			$     50			$     51

CMS Energy's and Consumers' expected long-term rate of return on Pension Plan assets is 7.75 percent. For the twelve months ended June 30, 2012, the actual return on Pension Plan assets was 4.7 percent, and for the twelve months ended June 30, 2011, the actual return was 19.5 percent. The expected rate of return is an assumption about long-term asset performance that CMS Energy and Consumers review annually for reasonableness and appropriateness.

							In Millions
	OPEB
	Three Months Ended						Six Months Ended
June 30	2012			2011			2012			2011
CMS Energy, including Consumers
Net periodic OPEB cost
Service cost		$       8			$       6			$     16			$     13
Interest expense		20			19			41			38
Expected return on plan assets		(16	)		(16	)		(33	)		(33	)
Amortization of:
Net loss		12			8			23			16
Prior service credit		(5	)		(5	)		(10	)		(10	)
Net periodic OPEB cost		$     19			$     12			$     37			$     24
Consumers
Net periodic OPEB cost
Service cost		$       8			$       7			$     16			$     13
Interest expense		20			19			40			37
Expected return on plan assets		(16	)		(16	)		(31	)		(31	)
Amortization of:
Net loss		12			8			23			16
Prior service credit		(5	)		(5	)		(10	)		(10	)
Net periodic OPEB cost		$     19			$     13			$     38			$     25