8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

October 17, 2007

Date of Report (Date of earliest event reported)

Commission File Number	Exact Name of Registrant as Specified in Its Charter; State of Incorporation; Address of Principal Executive Offices; and Telephone Number	IRS Employer Identification Number
1-16169	EXELON CORPORATION (a Pennsylvania corporation)	23-2990190
	10 South Dearborn Street P.O. Box 805379 Chicago, Illinois 60680-5379 (312) 394-7398
1-1839	COMMONWEALTH EDISON COMPANY (an Illinois corporation)	36-0938600
	440 South LaSalle Street Chicago, Illinois 60605-1028 (312) 394-4321

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Section 8 – Other Events

Item 8.01 Other Events.

On October 17, 2007, Commonwealth Edison Company (ComEd) filed a request with the Illinois Commerce Commission (ICC) seeking approval to increase its delivery service rates to reflect ComEd’s continued substantial investment in delivery service assets since rates were last determined. If approved by the ICC, the total proposed increase of $361.3 million (or approximately $358.9 million adjusted for normal weather) in the annual revenue requirement, which was based on a 2006 test year, would increase an average ComEd residential customer bill about 7.7%. The ICC proceedings relating to the proposed delivery service rates will take place over a period of up to 11 months. ComEd cannot predict how much of a delivery service rate increase the ICC may approve, if any, when any rate increase may go into effect, or whether any rate increase that may eventually be approved will be sufficient for ComEd to adequately recover its costs when the increase goes into effect. Attached as Exhibit 99.1 to this Current Report on Form 8-K is ComEd’s press release regarding its filing with the ICC.

Section 9 – Financial Statements and Exhibits

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.	Description
99.1	Press Release

* * * * *

This combined Form 8-K is being furnished separately by Exelon Corporation (Exelon) and ComEd (Registrants). Information contained herein relating to any individual Registrant has been furnished by such Registrant on its own behalf. No Registrant makes any representation as to information relating to any other Registrant.

This Current Report includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, that are subject to risks and uncertainties. The factors that could cause actual results to differ materially from these forward-looking statements include those discussed herein as well as those discussed in (1) Exelon’s and ComEd’s 2006 Annual Report on Form 10-K in (a) ITEM 1A. Risk Factors, (b) ITEM 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations and (c) ITEM 8. Financial Statements and Supplementary Data: Note 18; (2) Exelon’s and ComEd’s Second Quarter 2007 Quarterly Report on Form 10-Q in (a) Part II, Other Information, ITEM 1A. Risk Factors and (b) Part I, Financial Information, ITEM 1. Financial Statements: Note 13; and (3) other factors discussed in filings with the Securities and Exchange Commission by the Registrants. Readers are cautioned not to place undue reliance on these forward-looking statements, which apply only as of the date of this Current Report. Neither of the Registrants undertakes any obligation to publicly release any revision to its forward-looking statements to reflect events or circumstances after the date of this Current Report.

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 hereunto duly authorized.

EXELON CORPORATION

/s/ John F. Young

John F. Young

Executive Vice President, Finance and Markets

and Chief Financial Officer

Exelon Corporation

COMMONWEALTH EDISON COMPANY

/s/ Robert K. McDonald

Robert K. McDonald

Senior Vice President, Chief Financial Officer,

Treasurer and Chief Risk Officer

Commonwealth Edison Company

October 17, 2007

EXHIBIT INDEX

Exhibit No.	Description
99.1	Press Release

EX-99.1

Exhibit 99.1

Contact:	FOR IMMEDIATE RELEASE
ComEd Media Relations
(312) 394-3500

ComEd Requests Rate Increase to Continue Modernizing and Expanding System

New technologies and system investments needed to improve reliability, meet growing demand

CHICAGO (October 17, 2007) ComEd today filed a delivery service rate increase request with the Illinois Commerce Commission (ICC) that would allow the utility to continue expanding and upgrading its system to meet growing demand for electricity. The rate case allows ComEd to recover costs for everything from storm repairs to new infrastructure development.

“Whether it’s repairing damage done by severe weather or expanding our infrastructure to meet the growing population and increasing daily usage of electricity, our commitment is to provide our 3.8 million customers with safe, reliable and affordable electric service,” said Anne Pramaggiore, executive vice president of customer operations, regulatory and external affairs for ComEd. “By continuing to invest in our electric infrastructure, we will ensure that a robust, modern and reliable delivery system is available for our customers now and in the future.”

ComEd is modernizing its system for the 21^st century

Today’s rate filing begins an 11-month ICC process to determine ComEd delivery rates. By the time that process ends, ComEd will have invested an additional $1.7 billion in an expanded and more efficient, modern system that is not reflected in current rates. Improving system performance means implementation of new technologies and equipment. Some of these enhancements include remote substation controls, “smart switches” that can restore service automatically, and mobile dispatch technology that can more quickly direct crews to job sites. These investments help to prevent outages or reduce restoration times when outages do occur.

In addition to infrastructure investments, ComEd’s Call Center has introduced “virtual hold,” which gives customers an option to receive a call back from ComEd instead of being placed on hold. ComEd also is seeking to pilot an advanced metering system, which would automatically read meters and report customer outages, without requiring customers to call and report their outage, allowing for faster restorations.

Investments needed to keep up with growing demand

The average home today uses more electricity than ever before because homes are bigger, with central air conditioning, computers, large-screen TVs, and modern appliances. In fact, from 1995 to 2006, the average ComEd residential household’s electricity usage increased by 18 percent. More electricity use requires ComEd to expand and modernize its electric infrastructure, including wires and poles, and systems for metering, billing and customer service.

Six of the top 100 fastest-growing U.S. counties are in the ComEd service territory. While those new homes and businesses translate into more Illinois jobs and a strong economy, it also requires a modernized infrastructure that can keep up with growing demand.

“ComEd has been investing billions of dollars to maintain the delivery system, meet our customers’ growing needs and keep the lights on,” said Pramaggiore. “These investments ensure that ComEd has the infrastructure to support new housing starts and business growth that are driving the Northern Illinois economy.”

In addition, ComEd must devote increasing financial resources to maintain its system because general maintenance expenses and materials costs have risen significantly. From 2004 to 2006, transformer costs have more than doubled; overhead wire is up 59 percent; underground cable is up 48 percent; and utility poles are up 43 percent. These costs are increasing faster than inflation.

Rate increase request is for delivery only

ComEd is an energy delivery company and must present delivery service rate requests to the ICC to recover its costs from customers. The current rate increase request is related only to the costs that ComEd incurs to deliver electricity to its customers. Starting in 2009, the Illinois Power Agency will handle the purchase of the electricity that ComEd delivers to customers, and those electricity supply costs are passed through to customers without mark-up.

ComEd is requesting a delivery rate increase that will impact the average residential customer’s monthly bill by about 8 percent, about $6 more on an average $75 monthly bill, or about 20 cents per day.

This is the second delivery service rate case that ComEd has filed since emerging from the nearly decade-long rate freeze. The first delivery rate case was based on 2004 costs; the current request is based on 2006 costs. After an 11-month process involving thousands of hours of testimony from all stakeholders, the ICC will determine any increase in ComEd’s delivery rates. Subject to the approval of the ICC, the rate increase will not take effect until September 2008.

ComEd has put into place assistance programs to help those most in need with their bills. Over the next three years, ComEd will continue to offer financial assistance programs to help customers adjust to any increase. For more information on ComEd’s rate relief and assistance programs, visit www.ComEdCARE.com or call 888-806-CARE (2273).

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Commonwealth Edison Company (ComEd) is a unit of Chicago-based Exelon Corporation (NYSE: EXC), one of the nation’s largest electric utilities with approximately 5.4 million customers. ComEd provides service to approximately 3.8 million customers across Northern Illinois, or 70 percent of the state’s population.