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 26, 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 26, 2003, J. Barry  Mitchell,  SVP & Treasurer,  met with investors and
presented the information in Exhibit 99.1.

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 26, 2003