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


                                November 10, 2003
                                (Date of earliest
                                 event reported)





Commission File Name of Registrant; State of Incorporation; Address of IRS Employer Number Principal Executive Offices; and Telephone Number Identification Number - --------------------- ---------------------------------------------------------- ------------------------ 1-16169 EXELON CORPORATION 23-2990190 (a Pennsylvania corporation) 10 South Dearborn Street - 37th Floor P.O. Box 805379 Chicago, Illinois 60680-5379 (312) 394-7398 1-1839 COMMONWEALTH EDISON COMPANY 36-0938600 (an Illinois corporation) 10 South Dearborn Street - 37th Floor P.O. Box 805379 Chicago, Illinois 60680-5379 (312) 394-4321 333-85496 EXELON GENERATION COMPANY, LLC 23-3064219 (a Pennsylvania limited liability company) 300 Exelon Way Kennett Square, Pennsylvania 19348 (610) 765-6900
Item 5. Other Events On November 10, 2003, Exelon Corporation (Exelon) and its Commonwealth Edison Company (ComEd) subsidiary announced important modifications to legislation they are seeking to facilitate Exelon's proposed acquisition of Illinois Power. A copy of Exelon's news release is attached hereto as Exhibit 99. This combined Form 8-K is being furnished separately by Exelon, ComEd and Exelon Generation Company, LLC (Generation) (Registrants). Information contained herein relating to any individual registrant has been filed by such registrant on its own behalf. No registrant makes any representation as to information relating to any other registrant. Except for the historical information contained herein, certain of the matters discussed in this Report are 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 the forward-looking statements made by a registrant include those factors discussed herein, as well as the items discussed in (a) the Registrants' 2002 Annual Report on Form 10-K - ITEM 7. Management's Discussion and Analysis of Financial Condition and Results of Operations--Business Outlook and the Challenges in Managing Our Business for each of Exelon, ComEd, PECO and Generation, (b) the Registrants' 2002 Annual Report on Form 10-K - ITEM 8. Financial Statements and Supplementary Data: Exelon - Note 19, ComEd - Note 16, PECO - Note 18 and Generation - Note 13 and (c) other factors discussed in filings with the United States Securities and Exchange Commission (SEC) 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 Report. None 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 Report. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. EXELON CORPORATION COMMONWEALTH EDISON COMPANY EXELON GENERATION COMPANY, LLC /s/ Robert S. Shapard ---------------------------------- Robert S. Shapard Executive Vice President and Chief Financial Officer Exelon Corporation November 10, 2003
Exhibit 99

                                                                    [COMED LOGO]
- --------------------------------------------------------------------------------
                                                               An Exelon Company

     News Release

From:    Commonwealth Edison                          FOR IMMEDIATE RELEASE
         Media Relations                              Monday, November 10, 2003
         Chicago, IL 60680-5379

Contact: Tabrina Davis
         312.394.7919
         312.394.3500

 ComEd's Parent Company, Exelon, Announces Key Modifications to House Bill 2200
 ------------------------------------------------------------------------------

CHICAGO - Exelon Corporation and its ComEd subsidiary today announced important
modifications to legislation they are seeking to facilitate Exelon's proposed
acquisition of Illinois Power. The modifications address concerns expressed by
legislators last week - the first week of the Illinois General Assembly's fall
session.

ComEd will no longer submit a rate proposal in conjunction with the Illinois
Commerce Commission's review of Exelon's proposed acquisition of Illinois Power.
Until now, ComEd had planned to ask the ICC to set its rates for the 2007
through 2010 period in conjunction with the acquisition review.

"We have listened carefully to the concerns of the Governor, legislative
leaders, constitutional officers, lawmakers and the bill sponsors and have made
these modifications to address any misperceptions that the ComEd rate plan was
designed to finance the acquisition of Illinois Power," said Frank M. Clark,
President of ComEd. "While the modified legislation is not as desirable to us as
our original plan, Exelon could proceed with the acquisition of Illinois Power
under this scenario. We continue to believe that this transaction will be good
for Exelon and ComEd's customers, employees and investors and Illinois Power's
customers and employees."

If the legislation, House Bill 2200, is passed into law, Exelon officials said
that they would ask the ICC to determine rates for Illinois Power in conjunction
with the acquisition review, as previously planned.

In response to concerns regarding power purchases, Exelon would submit for ICC
review all power purchase agreements that ComEd and Illinois Power will have
with Exelon Generation that would be addressed in rates when the rate freeze
expires at the end of 2006. The ICC would be charged with determining the
prudence of electricity acquisitions under the power purchase agreements and if
they are in the public interest. Even after the transaction is completed, the
ICC will retain this authority to review future power purchase agreements.

Other important provisions of the legislation remain unchanged from the previous
version. Exelon will continue to seek an expedited nine-month ICC review process
for its acquisition of Illinois Power.

Exelon remains committed to renewable energy and environmental stewardship.

"These modifications should make clear that the acquisition of Illinois Power
and the ComEd rate plan are separate issues and each stands on its own merits,"
Clark said. "While this modified approach provides Exelon with less certainty,
it reflects our strong desire to find a solution that balances the interests of
all stakeholders. We are optimistic that this latest proposal will do just that.
These latest modifications should leave no doubt about the sincerity of our
intentions to purchase Illinois Power."


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ComEd
Page 2 of 2

Exelon also will remain committed to maintaining a strong Illinois Power
presence in Decatur, and to protecting jobs through its acquisition.

"We hope to provide stability for the working men and women of Illinois Power,"
Clark said.

                                       ###

     Except for the historical information contained herein, certain of the
  matters discussed in this news release are 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 the forward-looking statements
              made by a registrant include those factors discussed
   herein, as well as the items discussed in (a) the Registrants' 2002 Annual
 Report on Form 10-K - ITEM 7. Management's Discussion and Analysis of Financial
   Condition and Results of Operations-Business Outlook and the Challenges in
  Managing Our Business for each of Exelon, ComEd, PECO and Generation, (b) the
   Registrants' 2002 Annual Report on Form 10-K - ITEM 8. Financial Statements
    and Supplementary Data: Exelon - Note 19, ComEd - Note 16, PECO - Note 18
    and Generation - Note 13 and (c) other factors discussed in filings with
 the United States Securities and Exchange Commission (SEC) 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 release. None 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 release.

                                       ###

Commonwealth Edison is a unit of Chicago-based Exelon Corporation (NYSE, EXC),
one of the nation's largest electric utilities with more than $15 billion in
revenues and a customer base of five million. ComEd provides service to
approximately 3.5 million customers across Northern Illinois, or 70 percent of
the state's population.