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Revenue
12 Months Ended
Dec. 31, 2023
Disaggregation of Revenue [Line Items]  
Revenue Revenue
Presented in the following tables are the components of operating revenue:
In Millions
Year Ended December 31, 2023Electric UtilityGas Utility
NorthStar Clean Energy1
Consolidated
CMS Energy, including Consumers
Consumers utility revenue$4,686 $2,394 $— $7,080 
Other— — 181 181 
Revenue recognized from contracts with customers$4,686 $2,394 $181 $7,261 
Leasing income— — 116 116 
Financing income10 — 16 
Consumers alternative-revenue programs49 20 — 69 
Total operating revenue – CMS Energy$4,745 $2,420 $297 $7,462 
Consumers
Consumers utility revenue
Residential$2,236 $1,619 $3,855 
Commercial1,550 489 2,039 
Industrial660 60 720 
Other240 226 466 
Revenue recognized from contracts with customers$4,686 $2,394 $7,080 
Financing income10 16 
Alternative-revenue programs49 20 69 
Other non-segment revenue— — 
Total operating revenue – Consumers$4,745 $2,420 $7,166 
1Amounts represent NorthStar Clean Energy’s operating revenue from independent power production and its sales of energy commodities.
In Millions
Year Ended December 31, 2022Electric UtilityGas Utility
NorthStar Clean Energy1
Consolidated
CMS Energy, including Consumers
Consumers utility revenue$5,395 $2,720 $— $8,115 
Other— — 205 205 
Revenue recognized from contracts with customers$5,395 $2,720 $205 $8,320 
Leasing income— — 240 240 
Financing income10 — 16 
Consumers alternative-revenue programs43 14 — 57 
Consumers revenues to be refunded(29)(8)— (37)
Total operating revenue – CMS Energy$5,419 $2,732 $445 $8,596 
Consumers
Consumers utility revenue
Residential$2,523 $1,879 $4,402 
Commercial1,733 559 2,292 
Industrial792 75 867 
Other347 207 554 
Revenue recognized from contracts with customers$5,395 $2,720 $8,115 
Financing income10 16 
Alternative-revenue programs43 14 57 
Revenues to be refunded(29)(8)(37)
Total operating revenue – Consumers$5,419 $2,732 $8,151 
1Amounts represent NorthStar Clean Energy’s operating revenue from independent power production and its sales of energy commodities.
In Millions
Year Ended December 31, 2021Electric UtilityGas Utility
NorthStar Clean Energy1
Consolidated
CMS Energy, including Consumers
Consumers utility revenue$4,915 $2,046 $— $6,961 
Other— — 114 114 
Revenue recognized from contracts with customers$4,915 $2,046 $114 $7,075 
Leasing income— — 194 194 
Financing income10 — 15 
Consumers alternative-revenue programs33 12 — 45 
Total operating revenue – CMS Energy$4,958 $2,063 $308 $7,329 
Consumers
Consumers utility revenue
Residential$2,402 $1,396 $3,798 
Commercial1,573 396 1,969 
Industrial624 54 678 
Other316 200 516 
Revenue recognized from contracts with customers$4,915 $2,046 $6,961 
Financing income10 15 
Alternative-revenue programs33 12 45 
Total operating revenue – Consumers$4,958 $2,063 $7,021 
1Amounts represent NorthStar Clean Energy’s operating revenue from independent power production and its sales of energy commodities.
Electric and Gas Utilities
Consumers Utility Revenue: Consumers recognizes revenue primarily from the sale of electric and gas utility services at tariff-based rates regulated by the MPSC. Consumers’ customer base consists of a mix of residential, commercial, and diversified industrial customers. Consumers’ tariff-based sales performance obligations are described below.
Consumers has performance obligations for the service of standing ready to deliver electricity or natural gas to customers, and it satisfies these performance obligations over time. Consumers recognizes revenue at a fixed rate as it provides these services. These arrangements generally do not have fixed terms and remain in effect as long as the customer consumes the utility service. The rates are set by the MPSC through the rate-making process and represent the stand-alone selling price of Consumers’ service to stand ready to deliver.
Consumers has performance obligations for the service of delivering the commodity of electricity or natural gas to customers, and it satisfies these performance obligations upon delivery. Consumers recognizes revenue at a price per unit of electricity or natural gas delivered, based on the tariffs established by the MPSC. These arrangements generally do not have fixed terms and remain in effect as long as the customer consumes the utility service. The rates are set by the MPSC through the rate-making process and represent the stand-alone selling price of a bundled product comprising the commodity, electricity or natural gas, and the service of delivering such commodity.
In some instances, Consumers has specific fixed-term contracts with large commercial and industrial customers to provide electricity or gas at certain tariff rates or to provide gas transportation services at contracted rates. The amount of electricity and gas to be delivered under these contracts and the associated future revenue to be received are generally dependent on the customers’ needs. Accordingly, Consumers recognizes revenues at the tariff or contracted rate as electricity or gas is delivered to the customer. Consumers also has other miscellaneous contracts with customers related to pole and other property rentals, appliance service plans, and utility contract work. Generally, these contracts are short term or evergreen in nature.
Accounts Receivable and Unbilled Revenues: Accounts receivable comprise trade receivables and unbilled receivables. CMS Energy and Consumers record their accounts receivable at cost less an allowance for uncollectible accounts. The allowance is increased for uncollectible accounts expense and decreased for account write-offs net of recoveries. CMS Energy and Consumers establish the allowance based on historical losses, management’s assessment of existing economic conditions, customer payment trends, and reasonable and supported forecast information. CMS Energy and Consumers assess late payment fees on trade receivables based on contractual past-due terms established with customers. Accounts are written off when deemed uncollectible, which is generally when they become six months past due.
CMS Energy and Consumers recorded uncollectible accounts expense of $34 million for the year ended December 31, 2023, $50 million for the year ended December 31, 2022, and $22 million for the year ended December 31, 2021. Uncollectible accounts expense for the year ended December 31, 2022 included a commitment to contribute $10 million to directly assist vulnerable customers with utility bills.
Consumers’ customers are billed monthly in cycles having billing dates that do not generally coincide with the end of a calendar month. This results in customers having received electricity or natural gas that they have not been billed for as of the month-end. Consumers estimates its unbilled revenues by applying an average billed rate to total unbilled deliveries for each customer class. Unbilled revenues, which are recorded as accounts receivable and accrued revenue on CMS Energy’s and Consumers’ consolidated balance sheets, were $494 million at December 31, 2023 and $663 million at December 31, 2022.
Alternativerevenue Programs: Consumers accounts for its energy waste reduction incentive mechanism and financial compensation mechanism as alternative-revenue programs. Consumers recognizes revenue related to the energy waste reduction incentive as soon as energy savings exceed the annual targets established by the MPSC and recognizes revenue related to the financial compensation mechanism as payments are made on MPSC-approved PPAs. For additional information on these mechanisms, see Note 2, Regulatory Matters.
Consumers does not reclassify revenue from its alternative-revenue program to revenue from contracts with customers at the time the amounts are collected from customers.
Revenues to Be Refunded: In December 2022, the MPSC issued an order authorizing Consumers to refund $22 million voluntarily to utility customers. Additionally, in the settlement of its 2022 electric rate case, Consumers agreed to refund voluntarily $15 million of 2022 revenues to utility customers through a onetime bill credit. For additional information, see Note 2, Regulatory Matters.
Consumers Energy Company  
Disaggregation of Revenue [Line Items]  
Revenue Revenue
Presented in the following tables are the components of operating revenue:
In Millions
Year Ended December 31, 2023Electric UtilityGas Utility
NorthStar Clean Energy1
Consolidated
CMS Energy, including Consumers
Consumers utility revenue$4,686 $2,394 $— $7,080 
Other— — 181 181 
Revenue recognized from contracts with customers$4,686 $2,394 $181 $7,261 
Leasing income— — 116 116 
Financing income10 — 16 
Consumers alternative-revenue programs49 20 — 69 
Total operating revenue – CMS Energy$4,745 $2,420 $297 $7,462 
Consumers
Consumers utility revenue
Residential$2,236 $1,619 $3,855 
Commercial1,550 489 2,039 
Industrial660 60 720 
Other240 226 466 
Revenue recognized from contracts with customers$4,686 $2,394 $7,080 
Financing income10 16 
Alternative-revenue programs49 20 69 
Other non-segment revenue— — 
Total operating revenue – Consumers$4,745 $2,420 $7,166 
1Amounts represent NorthStar Clean Energy’s operating revenue from independent power production and its sales of energy commodities.
In Millions
Year Ended December 31, 2022Electric UtilityGas Utility
NorthStar Clean Energy1
Consolidated
CMS Energy, including Consumers
Consumers utility revenue$5,395 $2,720 $— $8,115 
Other— — 205 205 
Revenue recognized from contracts with customers$5,395 $2,720 $205 $8,320 
Leasing income— — 240 240 
Financing income10 — 16 
Consumers alternative-revenue programs43 14 — 57 
Consumers revenues to be refunded(29)(8)— (37)
Total operating revenue – CMS Energy$5,419 $2,732 $445 $8,596 
Consumers
Consumers utility revenue
Residential$2,523 $1,879 $4,402 
Commercial1,733 559 2,292 
Industrial792 75 867 
Other347 207 554 
Revenue recognized from contracts with customers$5,395 $2,720 $8,115 
Financing income10 16 
Alternative-revenue programs43 14 57 
Revenues to be refunded(29)(8)(37)
Total operating revenue – Consumers$5,419 $2,732 $8,151 
1Amounts represent NorthStar Clean Energy’s operating revenue from independent power production and its sales of energy commodities.
In Millions
Year Ended December 31, 2021Electric UtilityGas Utility
NorthStar Clean Energy1
Consolidated
CMS Energy, including Consumers
Consumers utility revenue$4,915 $2,046 $— $6,961 
Other— — 114 114 
Revenue recognized from contracts with customers$4,915 $2,046 $114 $7,075 
Leasing income— — 194 194 
Financing income10 — 15 
Consumers alternative-revenue programs33 12 — 45 
Total operating revenue – CMS Energy$4,958 $2,063 $308 $7,329 
Consumers
Consumers utility revenue
Residential$2,402 $1,396 $3,798 
Commercial1,573 396 1,969 
Industrial624 54 678 
Other316 200 516 
Revenue recognized from contracts with customers$4,915 $2,046 $6,961 
Financing income10 15 
Alternative-revenue programs33 12 45 
Total operating revenue – Consumers$4,958 $2,063 $7,021 
1Amounts represent NorthStar Clean Energy’s operating revenue from independent power production and its sales of energy commodities.
Electric and Gas Utilities
Consumers Utility Revenue: Consumers recognizes revenue primarily from the sale of electric and gas utility services at tariff-based rates regulated by the MPSC. Consumers’ customer base consists of a mix of residential, commercial, and diversified industrial customers. Consumers’ tariff-based sales performance obligations are described below.
Consumers has performance obligations for the service of standing ready to deliver electricity or natural gas to customers, and it satisfies these performance obligations over time. Consumers recognizes revenue at a fixed rate as it provides these services. These arrangements generally do not have fixed terms and remain in effect as long as the customer consumes the utility service. The rates are set by the MPSC through the rate-making process and represent the stand-alone selling price of Consumers’ service to stand ready to deliver.
Consumers has performance obligations for the service of delivering the commodity of electricity or natural gas to customers, and it satisfies these performance obligations upon delivery. Consumers recognizes revenue at a price per unit of electricity or natural gas delivered, based on the tariffs established by the MPSC. These arrangements generally do not have fixed terms and remain in effect as long as the customer consumes the utility service. The rates are set by the MPSC through the rate-making process and represent the stand-alone selling price of a bundled product comprising the commodity, electricity or natural gas, and the service of delivering such commodity.
In some instances, Consumers has specific fixed-term contracts with large commercial and industrial customers to provide electricity or gas at certain tariff rates or to provide gas transportation services at contracted rates. The amount of electricity and gas to be delivered under these contracts and the associated future revenue to be received are generally dependent on the customers’ needs. Accordingly, Consumers recognizes revenues at the tariff or contracted rate as electricity or gas is delivered to the customer. Consumers also has other miscellaneous contracts with customers related to pole and other property rentals, appliance service plans, and utility contract work. Generally, these contracts are short term or evergreen in nature.
Accounts Receivable and Unbilled Revenues: Accounts receivable comprise trade receivables and unbilled receivables. CMS Energy and Consumers record their accounts receivable at cost less an allowance for uncollectible accounts. The allowance is increased for uncollectible accounts expense and decreased for account write-offs net of recoveries. CMS Energy and Consumers establish the allowance based on historical losses, management’s assessment of existing economic conditions, customer payment trends, and reasonable and supported forecast information. CMS Energy and Consumers assess late payment fees on trade receivables based on contractual past-due terms established with customers. Accounts are written off when deemed uncollectible, which is generally when they become six months past due.
CMS Energy and Consumers recorded uncollectible accounts expense of $34 million for the year ended December 31, 2023, $50 million for the year ended December 31, 2022, and $22 million for the year ended December 31, 2021. Uncollectible accounts expense for the year ended December 31, 2022 included a commitment to contribute $10 million to directly assist vulnerable customers with utility bills.
Consumers’ customers are billed monthly in cycles having billing dates that do not generally coincide with the end of a calendar month. This results in customers having received electricity or natural gas that they have not been billed for as of the month-end. Consumers estimates its unbilled revenues by applying an average billed rate to total unbilled deliveries for each customer class. Unbilled revenues, which are recorded as accounts receivable and accrued revenue on CMS Energy’s and Consumers’ consolidated balance sheets, were $494 million at December 31, 2023 and $663 million at December 31, 2022.
Alternativerevenue Programs: Consumers accounts for its energy waste reduction incentive mechanism and financial compensation mechanism as alternative-revenue programs. Consumers recognizes revenue related to the energy waste reduction incentive as soon as energy savings exceed the annual targets established by the MPSC and recognizes revenue related to the financial compensation mechanism as payments are made on MPSC-approved PPAs. For additional information on these mechanisms, see Note 2, Regulatory Matters.
Consumers does not reclassify revenue from its alternative-revenue program to revenue from contracts with customers at the time the amounts are collected from customers.
Revenues to Be Refunded: In December 2022, the MPSC issued an order authorizing Consumers to refund $22 million voluntarily to utility customers. Additionally, in the settlement of its 2022 electric rate case, Consumers agreed to refund voluntarily $15 million of 2022 revenues to utility customers through a onetime bill credit. For additional information, see Note 2, Regulatory Matters.