UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


In the Matter of                                                CERTIFICATE
Exelon Corporation                                                  OF
File No. 70-9693                                               NOTIFICATION

Public Utility Holding Company Act of 1935 (PUHCA)

         Exelon Corporation,  a Pennsylvania  corporation and registered holding
company  (Exelon),  hereby  submits the following  Certificate  of  Notification
pursuant  to Rule  24.  This  filing  is made  pursuant  to  Exelon's  Form  U-1
Application-Declaration, as amended (the "Financing U-1") and the Securities and
Exchange  Commission's  orders dated November 2, 2000 and December 8, 2000. This
certificate  reports  activity in File No.  70-9693 for the period April 1, 2002
through June 30, 2002. Any capitalized  terms used herein but not defined herein
have the  respective  meanings  given in the Financing  U-1 or the  Commission's
Orders.

See Exhibit C for Glossary of Defined Terms

1.     Order - A  computation  in  accordance  with  rule  53(a)  setting  forth
       Exelon's "aggregate  investment" in all EWGs and FUCOs, its "consolidated
       retained  earnings" and a calculation of the amount  remaining  under the
       Requested EWG/FUCO Authority.

       Rule  53(a)  provides  that  a  registered  holding  company's  aggregate
       investment in EWGs and FUCOs may not exceed 50% of its retained earnings.
       Exelon was granted partial relief from this rule pursuant to the December
       8, 2000 Order,  which provides for a Modified Rule 53 Test  applicable to
       Exelon's  investments  in EWGs and FUCOs of $4,000  million.  At June 30,
       2002,  Exelon's  "aggregate  investment"  (as defined in rule 53(a) under
       PUHCA)  in all EWGs and  FUCOs  was  approximately  $2,106  million,  and
       accordingly,  at June 30, 2002,  Exelon's remaining  investment  capacity
       under the Modified Rule 53 Test was approximately $1,894 million. At June
       30, 2002, Exelon's  "consolidated  retained earnings" (as defined in rule
       53(a) under the PUHCA) was $1,172 million.

2.     Order - A breakdown showing Exelon's aggregate  investment in each EWG or
       FUCO counting against the Requested EWG/FUCO Authority.

       Pursuant to a request  for  confidential  treatment  under rule 104(b) of
       PUHCA,  Exelon is  concurrently  filing in paper  format  as  Exhibit  A,
       certain  information  concerning  the  aggregate  investment  by EWG/FUCO
       Project.

3.     Order  -  Identification  of any new EWG or  FUCO  counting  against  the
       requested EWG/FUCO Authority in which Exelon has invested or committed to
       invest during the quarter.

       In the second quarter of 2002,  Exelon  invested in one EWG and committed
       to invest in a second EWG that would count  against the Modified  Rule 53
       Test.  On June 26, 2002,  Genco signed an agreement to acquire  Sithe New
       England Holdings, a subsidiary of Sithe Energies, Inc., for $543 million.
       The parties are seeking FERC and other required  approvals by October 31,
       2002. If approved,  the transaction  could be completed in November 2002.
       In addition,  on June 19, 2002, Genco committed to invest $178 million in
       Southeast Chicago Energy Project, LLC.

       In the second quarter of 2002,  Exelon did not invest or commit to invest
       in a FUCO that would count against the Modified Rule 53 Test.



4.     Order - Analysis of the growth in  consolidated  retained  earnings  that
       segregates total earnings growth of EWGs and FUCOs from that attributable
       to other subsidiaries of Exelon.

       Pursuant to a request  for  confidential  treatment  under rule 104(b) of
       PUHCA,  Exelon is concurrently filing in paper format as Exhibit A, total
       earnings growth by EWG and FUCO project in the second quarter.

5.     Order - A statement  of revenues and net income for each EWG and FUCO for
       the twelve months ending as of that quarter.

       Pursuant to a request  for  confidential  treatment  under rule 104(b) of
       PUHCA,  Exelon is  concurrently  filing in paper format as Exhibit A, net
       income and  revenues of  Exelon's  EWG and FUCO  Projects  for the twelve
       months ending June 30, 2002.

6.     Order - Consolidated  capitalization  ratios of Exelon, with consolidated
       debt to include all short-term debt and nonrecourse  debt of all EWGs and
       FUCOs.

       At June 30, 2002, Exelon's  consolidated  capitalization  ratio was: debt
       62%,  common equity 35%, and preferred  securities of subsidiaries of 3%.
       (For  these  purposes,  "consolidated  debt"  means all  long-term  debt,
       long-term  debt due within one year,  notes payable and other  short-term
       obligations,  including  any  short-term  debt and  non-recourse  debt of
       EWG/FUCO Projects,  to the extent normally  consolidated under applicable
       financial reporting rules).




7.     Order - A table  showing,  as of the end of the  quarter,  the dollar and
       percentage   components   of  the  capital   structure  of  Exelon  on  a
       consolidated basis and of each Utility Subsidiary.

       Capital  Structure of Exelon and its utility  subsidiaries as of June 30,
       2002 are as follows (in millions, except percentage data):





                           Exelon    PECO      ComEd      Genco    PEPCO      SPCO        SECO        ComEd
                                                                                                      Indiana
                                                                               

    Debt 1
    ------

    Amount                 14,833    5,954     6,943      1,402                                        -0-

    Percentage             62%       90%       55%        32%                                          -0-

    Common Equity
    -------------

    Amount                 8,346     385       5,253      2,948    131        122         (3)          21

    Percentage             35%       6%        42%        68%      100%       100%        100%         100%

    Preferred
    ---------
    Securities of
    -------------
    Subsidiaries
    ------------

    Amount                 613       284       336        --

    Percentage             3%        4%        3%         --




8.     Order - The market-to-book ratio of Exelon's common stock.

       At June 30, 2002, the  market-to-book  ratio of Exelon's common stock was
       2.03 to 1.

9.     Order - The sale of any common  stock or preferred  securities  by Exelon
       and the  purchase  price per share and the market  price per share at the
       date of the agreement of sale.

       During the second quarter of 2002,  1,196,761 shares of common stock were
       issued under various employee stock purchase and compensation  plans with
       a price range of $47.07 to $56.52 per share.  The  average  price for the
       period was $53.36.




--------
    1 See definition under Item 3.



10.    Order - The total  number of shares  of  Exelon  common  stock  issued or
       issuable  under to options  granted  during the  quarter  under  employee
       benefit  plans and dividend  reinvestment  plans  including  any employee
       benefit plans or dividend reinvestment plans later adopted.

       Exelon  granted  34,500 stock options in the second quarter of 2002 at an
       exercise price of $53.96 per share.

11.    Order - If  Exelon  common  stock  has been  transferred  to a seller  of
       securities of a company being  acquired,  the number of shares so issued,
       the value per share and whether the shares are restricted in the hands of
       the acquirer.

       Exelon did not transfer any common stock to a seller of  securities  of a
       company being acquired during the second quarter of 2002.

12.    Order - If a  guarantee  is issued  during the  quarter,  the name of the
       guarantor,  the name of the  beneficiary of the guarantee and the amount,
       terms and purpose of the guaranty.



      Name of Parent
      --------------
          Purpose          Name of Subsidiary                    Amount                Terms
          -------          ------------------                    ------                -----

                                                                            
       Genco               Sithe                               30,000,000            12 months
          Power marketing
          and trading


13.    Order - The amount and terms of any Exelon indebtedness issued during the
       quarter.

       Overnight  commercial paper issued through Chase Manhattan Bank on behalf
       of Exelon  during the second  quarter.  Daily  balances  ranged from $110
       million to $447 million at an average interest rate of 2.03%.

14.    Order - The amount and terms of any short-term debt issued by any Utility
       Subsidiary during the quarter.

       A.     Overnight  commercial  paper issued  through Bank One on behalf of
              PECO during the second  quarter.  Daily balances ranged from $0 to
              $196 million at an average interest rate of 1.79%.


       B.     Contributions  to and  Loans  from the  Utility  Money  Pool:  The
              activity below reflects a contribution  to the money pool by ComEd
              of Indiana and a loan to ComEd.



                            Exelon Utility Money Pool
                  For the Period April 1 through June 30, 2002

Activity  for the  quarter  - ComEd of  Indiana  invested  surplus  funds in the
Utility  Money Pool during the fourth  quarter of 2001 and the first  quarter of
2002 and ComEd  borrowed such funds.  The activity  below  reflects the interest
expense  charged ComEd and the interest income earned by ComEd of Indiana during
the second  quarter of 2002.  Interest is based on J.P.  Morgan's  money  market
account.



                                                                    ComEd              ComEd of Indiana.
                       Daily              Applied              Interest Expense         Interest Income
        Date          Balance          Interest Rate               Accrual                  Accrual
  --------------  --------------     ----------------         ------------------      -------------------

                                                                           
       1-Apr-02  $   20,500,000            1.75%                $       996.53         $      996.53
       2-Apr-02      20,500,000            1.75%                        996.53                996.53
       3-Apr-02      20,500,000            1.75%                        996.53                996.53
       4-Apr-02      20,500,000            1.73%                        985.14                985.14
       5-Apr-02      20,500,000            1.74%                        990.83                990.83
       6-Apr-02      20,500,000            1.74%                        990.83                990.83
       7-Apr-02      20,500,000            1.74%                        990.83                990.83
       8-Apr-02      20,500,000            1.73%                        985.14                985.14
       9-Apr-02      20,500,000            1.75%                        996.53                996.53
      10-Apr-02      20,500,000            1.77%                      1,007.92              1,007.92
      11-Apr-02      20,500,000            1.78%                      1,013.61              1,013.61
      12-Apr-02      20,500,000            1.80%                      1,025.00              1,025.00
      13-Apr-02      20,500,000            1.80%                      1,025.00              1,025.00
      14-Apr-02      20,500,000            1.80%                      1,025.00              1,025.00
      15-Apr-02      20,500,000            1.80%                      1,025.00              1,025.00
      16-Apr-02      20,500,000            1.84%                      1,047.78              1,047.78
      17-Apr-02      20,500,000            1.82%                      1,036.39              1,036.39
      18-Apr-02      20,500,000            1.84%                      1,047.78              1,047.78
      19-Apr-02      20,500,000            1.84%                      1,047.78              1,047.78
      20-Apr-02      20,500,000            1.84%                      1,047.78              1,047.78
      21-Apr-02      20,500,000            1.84%                      1,047.78              1,047.78
      22-Apr-02      20,500,000            1.83%                      1,042.08              1,042.08
      23-Apr-02      20,500,000            1.84%                      1,047.78              1,047.78
      24-Apr-02      20,500,000            1.83%                      1,042.08              1,042.08
      25-Apr-02      20,500,000            1.83%                      1,042.08              1,042.08
      26-Apr-02      20,500,000            1.85%                      1,053.47              1,053.47
      27-Apr-02      20,500,000            1.85%                      1,053.47              1,053.47
      28-Apr-02      20,500,000            1.85%                      1,053.47              1,053.47
      29-Apr-02      20,500,000            1.85%                      1,053.47              1,053.47
      30-Apr-02      20,500,000            1.85%                      1,053.47              1,053.47
                                     --------------          ---------------------   -----------------

Total                                      1.80%                $    30,767.08         $   30,767.08
                                                             =====================   ==================


       1-May-02  $   20,500,000            1.86%                $     1,059.17         $    1,059.17
       2-May-02      20,500,000            1.85%                      1,053.47              1,053.47
       3-May-02      20,500,000            1.84%                      1,047.78              1,047.78
       4-May-02      20,500,000            1.84%                      1,047.78              1,047.78
       5-May-02      20,500,000            1.84%                      1,047.78              1,047.78
       6-May-02      20,500,000            1.83%                      1,042.08              1,042.08
       7-May-02      20,500,000            1.81%                      1,030.69              1,030.69
       8-May-02      20,500,000            1.81%                      1,030.69              1,030.69
       9-May-02      20,500,000            1.81%                      1,030.69              1,030.69
      10-May-02      20,500,000            1.81%                      1,030.69              1,030.69
      11-May-02      20,500,000            1.81%                      1,030.69              1,030.69
      12-May-02      20,500,000            1.81%                      1,030.69              1,030.69
      13-May-02      20,500,000            1.80%                      1,025.00              1,025.00
      14-May-02      20,500,000            1.79%                      1,019.31              1,019.31
      15-May-02      20,500,000            1.81%                      1,030.69              1,030.69
      16-May-02      20,500,000            1.80%                      1,025.00              1,025.00
      17-May-02      20,500,000            1.77%                      1,007.92              1,007.92
      18-May-02      20,500,000            1.77%                      1,007.92              1,007.92
      19-May-02      20,500,000            1.77%                      1,007.92              1,007.92
      20-May-02      20,500,000            1.78%                      1,013.61              1,013.61
      21-May-02      20,500,000            1.74%                        990.83                990.83
      22-May-02      20,500,000            1.77%                      1,007.92              1,007.92
      23-May-02      20,500,000            1.75%                        996.53                996.53
      24-May-02      20,500,000            1.77%                      1,007.92              1,007.92
      25-May-02      20,500,000            1.77%                      1,007.92              1,007.92
      26-May-02      20,500,000            1.77%                      1,007.92              1,007.92
      27-May-02      20,500,000            1.77%                      1,007.92              1,007.92
      28-May-02      20,500,000            1.77%                      1,007.92              1,007.92
      29-May-02      20,500,000            1.78%                      1,013.61              1,013.61
      30-May-02      20,500,000            1.78%                      1,013.61              1,013.61
      31-May-02      20,500,000            1.78%                      1,013.61              1,013.61
                                     --------------          ---------------------   -----------------

Total                                      1.80%                $    31,695.28         $   31,695.28
                                                             =====================   ==================

       1-Jun-02  $   20,500,000            1.78%                $     1,013.61         $    1,013.61
       2-Jun-02      20,500,000            1.78%                      1,013.61              1,013.61
       3-Jun-02      20,500,000            1.77%                      1,007.92              1,007.92
       4-Jun-02      20,500,000            1.78%                      1,013.61              1,013.61
       5-Jun-02      20,500,000            1.76%                      1,002.22              1,002.22
       6-Jun-02      20,500,000            1.75%                        996.53                996.53
       7-Jun-02      20,500,000            1.73%                        985.14                985.14
       8-Jun-02      20,500,000            1.73%                        985.14                985.14
       9-Jun-02      20,500,000            1.73%                        985.14                985.14
      10-Jun-02      20,500,000            1.72%                        979.44                979.44
      11-Jun-02      20,500,000            1.73%                        985.14                985.14
      12-Jun-02      20,500,000            1.73%                        985.14                985.14
      13-Jun-02      20,500,000            1.73%                        985.14                985.14
      14-Jun-02      20,500,000            1.74%                        990.83                990.83



      15-Jun-02      20,500,000            1.74%                        990.83                990.83
      16-Jun-02      20,500,000            1.74%                        990.83                990.83
      17-Jun-02      20,500,000            1.72%                        979.44                979.44
      18-Jun-02      20,500,000            1.73%                        985.14                985.14
      19-Jun-02      20,500,000            1.72%                        979.44                979.44
      20-Jun-02      20,500,000            1.72%                        979.44                979.44
      21-Jun-02      20,500,000            1.72%                        979.44                979.44
      22-Jun-02      20,500,000            1.72%                        979.44                979.44
      23-Jun-02      20,500,000            1.72%                        979.44                979.44
      24-Jun-02      20,500,000            1.74%                        990.83                990.83
      25-Jun-02      20,500,000            1.74%                        990.83                990.83
      26-Jun-02      20,500,000            1.75%                        996.53                996.53
      27-Jun-02      20,500,000            1.75%                        996.53                996.53
      28-Jun-02      20,500,000            1.75%                        996.53                996.53
      29-Jun-02      20,500,000            1.75%                        996.53                996.53
      30-Jun-02      20,500,000            1.75%                        996.53                996.53
                                     --------------          ---------------------   -----------------

Total                                      1.74%                $    29,736.39         $   29,736.39
                                                             =====================   ==================


15.    Order  - The  amount  and  terms  of any  financings  consummated  by any
       Nonutility Subsidiary that is not exempt under rule 52.

       None.

16.    Order - A list of U-6B-2  forms  filed  with the  Commission  during  the
       quarter, including the name of the filing entity and the date of filing.

       1.     Certificate  filed by Exelon and Genco on August 2, 2002 regarding
              $29,530,000 of Montgomery County Industrial  Development Authority
              Pollution Control Revenue Refunding Bonds.

       2.     Certificate  filed by Exelon and ComEd on July 26, 2002  regarding
              $100,000,000 of Pollution Control Revenue Refunding Bonds.

       3.     Certificate  filed by Exelon and ComEd on July 26, 2002  regarding
              $200,000,000 of First Mortgage Bonds.

17.    Order - Future registration  statements filed under the Securities Act of
       1933  with  respect  to  securities  that  are  subject  of  the  instant
       application-declaration  will be filed or  incorporated  by  reference as
       exhibits to the next certificate filed under rule 24.

       See Forms S-4 dated  April 4, 2002 and S-4/A dated April 24, 2002 for the
       Registration Statement of Genco regarding $700,000,000 6.95% Senior Notes
       due 2011.



18.    Order -  Consolidated  balance  sheets as of the end of the  quarter  and
       separate  balance  sheets as of the end of the quarter for each  company,
       including   Exelon,   that  has  engaged  in   jurisdictional   financing
       transactions during the quarter.

       See form 10-Q filed on August 6, 2002 for Genco,  Commission  File Number
       333-85496.

       See form 10-Q filed on August 6, 2002 for Exelon,  Commission File Number
       1-6169.

19.    Order - A retained  earnings  analysis of Exelon on a consolidated  basis
       and  of  each  Utility  Subsidiary  detailing  gross  earnings,  goodwill
       amortization, dividend paid out of each capital account and the resulting
       capital account balances the end of the quarter.

       The  consolidated  retained  earnings  analyses of Exelon,  ComEd,  PECO,
       Genco, PECO Energy Power Company,  Susquehanna Power Company, Susquehanna
       Electric Company and ComEd of Indiana are attached as Exhibit B.

20.    Order - The notional amount and principal terms of any Hedge  Instruments
       or  Anticipatory  Hedges entered into during the quarter and the identity
       of the other parties to the transaction.

       In April 2002,  ComEd  entered into a 5-year  forward  starting swap with
       Citigroup.  The swap carries a notional amount of $100 million and hedges
       a portion of the Company's future interest rate exposure  associated with
       its  anticipated  issuance of $700 million in  long-term  debt during the
       fourth  quarter  of 2002.  This swap has been  designated  as a cash flow
       hedge in the attempt to minimize the  variability of the future  interest
       expense associated with changes in the 3 month LIBOR rate.

       In May 2002,  ComEd  entered  into a 5-year  forward  starting  swap with
       Barclays.  This swap carries a notional amount of $125 million and hedges
       a portion of the Company's future interest rate exposure  associated with
       its  anticipated  issuance of $700 million in  long-term  debt during the
       fourth  quarter  of 2002.  This swap has been  designated  as a cash flow
       hedge in the attempt to minimize the  variability of the future  interest
       expense associated with changes in the 3 month LIBOR rate.

21.    Order - The name,  parent company and amount invested in any intermediate
       subsidiary or financing  subsidiary during the quarter and the amount and
       terms of any securities issued by those subsidiaries during the quarter.

       None.

22.    Additional information.

       None.




                                S I G N A T U R E

         Pursuant to the requirements of PUHCA, the undersigned company has duly
caused  this  document to be signed on its behalf by the  undersigned  thereunto
duly authorized.

Date: August 29, 2002

                                         EXELON CORPORATION

                                         By: /s/ Matthew F. Hilzinger
                                             -----------------------------------
                                         Vice President and Corporate Controller




                                                                       Exhibit B
                                                                     Page 1 of 1


                   Exelon Corporation and Subsidiary Companies
                           Retained Earnings Analysis
                       For the Quarter Ended June 30, 2002
                                  (In millions)


Beginning Balance                                    $1,073
Net Income                                              485
Dividends:
  Common Stock                                         (142)
Tax benefit on stock options exercised                    5
                                                     ------
  Ending Balance                                     $1,421
                                                     ======




                  PECO Energy Company and Subsidiary Companies
                           Retained Earnings Analysis
                       For the Quarter Ended June 30, 2002
                                  (In millions)


Beginning Balance                                      $272
Net Income                                               93
Dividends:
   Common Stock                                         (86)
   Preferred Stock                                       (2)
                                                     ------
Ending Balance                                         $277
                                                     ======


                  Commonwealth Edison and Subsidiary Companies
                           Retained Earnings Analysis
                       For the Quarter Ended June 30, 2002
                                  (In millions)


Beginning Balance                                      $268
  Net Income                                            231
  Dividends:
     Common Stock                                      (117)
                                                     ------
Ending Balance                                         $382
                                                     ======


                                Exelon Generation
                           Retained Earnings Analysis
                       For the Quarter Ended June 30, 2002
                                  (In millions)


Beginning Balance                                      $603
  Net Income                                             84
  Dividends:
     Common Stock                                         0
                                                     ------
Ending Balance                                         $687
                                                     ======



                            PECO Energy Power Company
                           Retained Earnings Analysis
                       For the Quarter Ended June 30, 2002
                                  (In millions)


Beginning Balance                                       $29
  Net Income                                              3
  Dividends:
     Common Stock                                         0
                                                     ------
Ending Balance                                          $32
                                                     ======


                            Susquehanna Power Company
                           Retained Earnings Analysis
                       For the Quarter Ended June 30, 2002
                                  (In millions)


Beginning Balance                                       $25
  Net Income                                              3
  Dividends:
     Common Stock                                         0
                                                     ------
Ending Balance                                          $28
                                                     ======


                          Susquehanna Electric Company
                           Retained Earnings Analysis
                       For the Quarter Ended June 30, 2002
                                  (In millions)


Beginning Balance                                      $ (2)
  Net Income                                             (2)
  Dividends:
     Common Stock                                         0
                                                     ------
Ending Balance                                          $(4)
                                                     ======

                                ComEd of Indiana
                           Retained Earnings Analysis
                       For the Quarter Ended June 30, 2002
                                  (In millions)


Beginning Balance                                     $   1
  Net Income
  Dividends:
     Common Stock                                         0
                                                     ------
Ending Balance                                           $1
                                                     ======



                                                                       Exhibit C
                                                                     Page 1 of 1


Glossary of Defined Terms
-------------------------

AmerGen                    AmerGen Energy Company, L.L.C.
ComEd                      Commonwealth Edison Company
ComEd of Indiana           Commonwealth Edison Company of Indiana, Inc.
Exelon                     Exelon Corporation
EWGs                       Exempt wholesale generators
FUCO                       Foreign utility company
ExTex                      ExTex LaPorte Limited Partnership
Genco                      Exelon Generation Company, LLC
PECO                       PECO Energy Company
PEPCO                      PECO Energy Power Company
Power Holdings             Exelon Power Holdings, LP
PETT                       PECO Energy Transition Trust (a subsidiary of PECO)
Sithe                      Sithe Energy, Inc.
Sithe NEH                  Sithe New England Holdings, LLC
Southeast Chicago          Southeast Chicago Energy Project, LLC
SECO                       Susquehanna Electric Company
SPCO                       Susquehanna Power Company