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

                                 March 13, 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
1-1401                    PECO ENERGY COMPANY                                           23-0970240
                          (a Pennsylvania corporation)
                          P.O. Box 8699
                          2301 Market Street
                          Philadelphia, Pennsylvania 19101-8699
                          (215) 841-4000
333-85496                 EXELON GENERATION COMPANY, LLC                                23-3064219
                          (a Pennsylvania limited liability company)
                          300 Exelon Way
                          Kennett Square, Pennsylvania 19348
                          (610) 765-8200






Item 9. Regulation FD Disclosure

On March 13, 2003, John W. Rowe, Chairman, President and CEO, met with investors
and presented the information in Exhibits 99.1 and 99.2.

This combined Form 8-K is being filed separately by Exelon Corporation,
Commonwealth Edison Company, PECO Energy Company and Exelon Generation Company,
LLC (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.

This presentation contains certain forward-looking statements within the meaning
of the Private Securities Litigation Reform Act of 1995. These statements are
based on management's current expectations and are subject to uncertainty and
changes in circumstances. Actual results may vary materially from the
expectations contained herein. The forward-looking statements herein include
statements about future financial and operating results of Exelon. Economic,
business, competitive and/or regulatory factors affecting Exelon's businesses
generally could cause actual results to differ materially from those described
herein. For a discussion of the factors that could cause actual results to
differ materially, please see Exelon's filings with the Securities and Exchange
Commission, particularly those factors discussed in "Management's Discussion and
Analysis of Financial Condition and Results of Operations - Business Outlook and
the Challenges in Managing Our Business" in Exelon's 2002 Annual Report included
in current report on Form 8-K filed on 2/21/03, those discussed in "Risk
Factors" and "Management's Discussion and Analysis of Financial Condition and
Results of Operations" in Exelon Generation Company's Registration Statement on
Form S-4, Reg. No. 333-85496, those discussed in "Risk Factors" in PECO Energy
Company's Registration Statement on Form S-3, Reg. No. 333-99361, and those
discussed in "Risk Factors" in Commonwealth Edison Company's Registration
Statement on Form S-3, Reg. No. 333-99363. Readers are cautioned not to place
undue reliance on these forward-looking statements, which speak only as of the
date of this presentation. Exelon does not undertake any obligation to publicly
release any revisions to these forward-looking statements to reflect events or
circumstances after the date of this presentation.




                                   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
                           PECO ENERGY COMPANY
                           EXELON GENERATION COMPANY, LLC

                           /S/  Robert S. Shapard
                           -------------------------------------
                           Robert S. Shapard
                           Executive Vice President and Chief Financial Officer
                           Exelon Corporation


March 13, 2003