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                                  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 January 1, 2002
through March 31, 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.

1.     As determined  pursuant to the December 8, 2000 Order,  the Modified Rule
       53 Test  applicable to Exelon's  investments  in EWGs and FUCOs is $4,000
       million. At March 31, 2002,  Exelon's "aggregate  investment" (as defined
       in rule 53(a) under PUHCA) in all EWGs and FUCOs was approximately $1,353
       million,   and  accordingly,   at  March  31,  2002,  Exelon's  remaining
       investment  capacity  under the Modified  Rule 53 Test was  approximately
       $2,647  million.  At March  31,  2002,  Exelon's  "consolidated  retained
       earnings"  (as defined in rule 53(a)  under the PUHCA) was  approximately
       $1,006 million.

2.     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.     At March 31, 2002, Exelon's  consolidated  capitalization ratio was: debt
       63%,  common equity 34%, 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).

4.     At March 31, 2002, the market-to-book  ratio of Exelon's common stock was
       2.12 to 1.

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

6.     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 first quarter.

7.     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 March 31, 2002.

8.     Sale of any Common Stock or Preferred  Securities issued by Exelon during
       the  first  quarter  of 2002,  and the  purchase  price per share and the
       market price per share at the date of the agreement of sale.





             During the first  quarter of 2002,  674,184  shares of common stock
             were issued under various employee  compensation plans with a price
             range of $43.63 to $53.63  per  share.  The  average  price for the
             period was $49.86.

9.     Options issued or issuable during the quarter.

             Exelon granted 3,729,630 stock options in the first quarter of 2002
             at an exercise price of $46.93 per share.


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

11.   Guarantees issued.

      The following guarantees were issued during the first quarter of 2001:



       Name of Parent
          Purpose          Name of Subsidiary                   Amount                Terms
                                                                           
       Exelon              Exelon Power Team                  $30,314,922            12 months
          Power trading
          and marketing

       Exelon              Exelon Enterprises                  14,047,792            12-36 months
          Surety bonds

       Exelon              Exelon Generation                   43,902,034            12-36 months
          Surety bonds


12.    Exelon indebtedness issued during the first quarter of 2002.

A.              Overnight  commercial  paper issued through Chase Manhattan Bank
                on behalf of Exelon  during the first  quarter.  Daily  balances
                ranged from $200 million to $280 million at an average  interest
                rate of 2.13%.

13.    Amount and terms of any short-term debt issued by any Utility  Subsidiary
       during the first quarter of 2002.

       A.     Overnight  commercial  paper issued  through Bank One on behalf of
              PECO during the first quarter.  Daily  balances  ranged from $0 to
              $115 million at an average interest rate of 1.87%.

       B.     Overnight  commercial paper issued through Chase Manhattan Bank on
              behalf of ComEd during the first quarter.  Daily  balances  ranged
              from $0 to $50 million at an average interest rate of 2.13%.

       B.     Contributions  to and  Loans  from the  Utility  Money  Pool:  The
              activity below reflects a contribution  to the money pool by ComEd
              of  Indiana,  Inc.  and a  loan  to  Commonwealth  Edison  Company
              (ComEd.)



                                                                                             ComEd of
                                                                    ComEd                    Indiana
                        Daily               Interest               Interest                  Interest
      Date             Balance                Rate                 Expense                    Income
-----------------  -----------------    -----------------   -----------------------    ---------------------
                                                                                  
       28-Dec-01         13,000,000          2.09%                   754.72                     754.72

       29-Dec-01         13,000,000          2.09%                   754.72                     754.72

       30-Dec-01         13,000,000          2.09%                   754.72                     754.72

       31-Dec-01         13,000,000          2.09%                   754.72                     754.72
                                                            -----------------------    ---------------------

AVG/Total                                    2.09%                $3,018.89                  $3,018.89
                                                            =======================    =====================





                                                                                      ComEd of
                                                             ComEd                    Indiana
                        Daily               Interest        Interest                  Interest
      Date             Balance                Rate          Expense                    Income
-----------------  -----------------    -------------     ------------         ---------------------
                                                                        
        1-Jan-02    $13,000,000              2.09%         $754.72                    $754.72

        2-Jan-02    $13,000,000              2.09%          754.72                     754.72

        3-Jan-02    $13,000,000              2.07%          747.50                     747.50

        4-Jan-02    $13,000,000              2.04%          736.67                     736.67

        5-Jan-02    $13,000,000              2.04%          736.67                     736.67

        6-Jan-02    $13,000,000              2.04%          736.67                     736.67

        7-Jan-02    $13,000,000              2.03%          733.06                     733.06

        8-Jan-02    $13,000,000              2.02%          729.44                     729.44

        9-Jan-02    $13,000,000              2.03%          733.06                     733.06

       10-Jan-02    $13,000,000              2.02%          729.44                     729.44

       11-Jan-02    $13,000,000              2.01%          725.83                     725.83

       12-Jan-00    $13,000,000              2.01%          725.83                     725.83

       13-Jan-02    $13,000,000              2.01%          725.83                     725.83

       14-Jan-02    $13,000,000              2.00%          722.22                     722.22

       15-Jan-02    $13,000,000              2.01%          725.83                     725.83

       16-Jan-02    $13,000,000              1.98%          715.00                     715.00

       17-Jan-02    $13,000,000              1.93%          696.94                     696.94

       18-Jan-02    $13,000,000              1.92%          693.33                     693.33

       19-Jan-02    $13,000,000              1.92%          693.33                     693.33

       20-Jan-02    $13,000,000              1.92%          693.33                     693.33

       21-Jan-02    $13,000,000              1.92%          693.33                     693.33

       22-Jan-02    $13,000,000              1.89%          682.50                     682.50

       23-Jan-02    $13,000,000              1.90%          686.11                     686.11

       24-Jan-02    $13,000,000              1.90%          686.11                     686.11

       25-Jan-02    $13,000,000              1.88%          678.89                     678.89

       26-Jan-02    $13,000,000              1.88%          678.89                     678.89

       27-Jan-02    $13,000,000              1.88%          678.89                     678.89

       28-Jan-02    $13,000,000              1.88%          678.89                     678.89

       29-Jan-02    $13,000,000              1.88%          678.89                     678.89

       30-Jan-02    $13,000,000              1.87%          675.28                     675.28

       31-Jan-02    $13,000,000              1.88%          678.89                     678.89
                                                      ------------               -------------

AVG/Total                                    1.97%     $22,006.11                  $22,006.11
                                                      ============               =============


                                                                                      ComEd of
                                                             ComEd                    Indiana
                        Daily               Interest        Interest                  Interest
      Date             Balance                Rate          Expense                    Income
-----------------  -----------------    -------------     ------------         ---------------------
        1-Feb-02    $13,000,000              1.87%         $675.28                    $675.28

        2-Feb-02    $13,000,000              1.87%          675.28                     675.28

        3-Feb-02    $13,000,000              1.87%          675.28                     675.28

        4-Feb-02    $13,000,000              1.86%          671.67                     671.67

        5-Feb-02    $13,000,000              1.84%          664.44                     664.44

        6-Feb-02    $13,000,000              1.83%          660.83                     660.83

        7-Feb-02    $13,000,000              1.83%          660.83                     660.83

        8-Feb-02    $13,000,000              1.82%          657.22                     657.22

        9-Feb-02    $13,000,000              1.82%          657.22                     657.22

       10-Feb-02    $13,000,000              1.82%          657.22                     657.22

       11-Feb-02    $13,000,000              1.82%          657.22                     657.22

       12-Feb-02    $13,000,000              1.82%          657.22                     657.22

       13-Feb-02    $13,000,000              1.82%          657.22                     657.22

       14-Feb-02    $13,000,000              1.82%          657.22                     657.22

       15-Feb-02    $13,000,000              1.84%          664.44                     664.44

       16-Feb-02    $13,000,000              1.84%          664.44                     664.44

       17-Feb-02    $13,000,000              1.84%          664.44                     664.44

       18-Feb-02    $13,000,000              1.84%          664.44                     664.44

       19-Feb-02    $13,000,000              1.82%          657.22                     657.22

       20-Feb-02    $13,000,000              1.79%          646.39                     646.39

       21-Feb-02    $13,000,000              1.79%          646.39                     646.39

       22-Feb-02    $13,000,000              1.78%          642.78                     642.78

       23-Feb-02    $13,000,000              1.78%          642.78                     642.78

       24-Feb-02    $13,000,000              1.78%          642.78                     642.78

       25-Feb-02    $13,000,000              1.77%          639.17                     639.17

       26-Feb-02    $13,000,000              1.78%          642.78                     642.78

       27-Feb-02    $13,000,000              1.77%          639.17                     639.17

       28-Feb-02    $13,000,000              1.75%          631.94                     631.94
                                                      ------------               -------------

AVG/Total                                    1.82%      $18,373.33                 $18,373.33
                                                      ============               =============






                                                                                      ComEd of
                                                             ComEd                    Indiana
                        Daily               Interest        Interest                  Interest
      Date             Balance                Rate          Expense                    Income
-----------------  -----------------    -------------     ------------         ---------------------
        1-Mar-02    $13,000,000              1.74%         $628.33                    $628.33

        2-Mar-02    $13,000,000              1.74%          628.33                     628.33

        3-Mar-02    $13,000,000              1.74%          628.33                     628.33

        4-Mar-02    $13,000,000              1.73%          624.72                     624.72

        5-Mar-02    $13,000,000              1.71%          617.50                     617.50

        6-Mar-02    $13,000,000              1.72%          621.11                     621.11

        7-Mar-02    $13,000,000              1.73%          624.72                     624.72

        8-Mar-02    $20,500,000              1.73%          985.14                     985.14

        9-Mar-02    $20,500,000              1.73%          985.14                     985.14

       10-Mar-02    $20,500,000              1.73%          985.14                     985.14

       11-Mar-02    $20,500,000              1.73%          985.14                     985.14

       12-Mar-02    $20,500,000              1.73%          985.14                     985.14

       13-Mar-02    $20,500,000              1.73%          985.14                     985.14

       14-Mar-02    $20,500,000              1.75%          996.53                     996.53

       15-Mar-02    $20,500,000              1.75%          996.53                     996.53

       16-Mar-02    $20,500,000              1.75%          996.53                     996.53

       17-Mar-02    $20,500,000              1.75%          996.53                     996.53

       18-Mar-02    $20,500,000              1.75%          996.53                     996.53

       19-Mar-02    $20,500,000              1.75%          996.53                     996.53

       20-Mar-02    $20,500,000              1.72%          979.44                     979.44

       21-Mar-02    $20,500,000              1.73%          985.14                     985.14

       22-Mar-02    $20,500,000              1.72%          979.44                     979.44

       23-Mar-02    $20,500,000              1.72%          979.44                     979.44

       24-Mar-02    $20,500,000              1.72%          979.44                     979.44

       25-Mar-02    $20,500,000              1.74%          990.83                     990.83

       26-Mar-02    $20,500,000              1.73%          985.14                     985.14

       27-Mar-02    $20,500,000              1.73%          985.14                     985.14

       28-Mar-02    $20,500,000              1.75%          996.53                     996.53

       29-Mar-02    $20,500,000              1.75%          996.53                     996.53

       30-Mar-02    $20,500,000              1.75%          996.53                     996.53

       31-Mar-02    $20,500,000              1.75%          996.53                     996.53

AVG/Total                                    1.74%      $28,113.19                 $28,113.19
                                                      ============               =============





14.    During the first quarter of 2002, no financings  were  consummated by any
       Non-Utility Subsidiary not exempt under Rule 52.

15.    Notional  amount  and  principal  terms  of  any  hedge   instruments  or
       anticipatory  hedges  entered  into during the first  quarter of 2002 and
       parties thereto.

         In January 2002,  ComEd entered into two  fixed-floating  interest rate
         swaps with  Credit  Suisse  First  Boston and JP Morgan.  These  swaps,
         carrying  a  notional   amount  of  $150  million  and  $100   million,
         respectively,  hedge ComEd's future fair value risk associated with the
         change in the value of 7.625%  Notes,  $150  million,  due  1/15/07 and
         8.25% First Mortgage Bonds, $100 million,  due 10/01/06.  The terms and
         payment  structure of the swap are designed to exactly mirror the terms
         and the remaining  payment structure for the underlying bond. This swap
         is designated as a fair value hedge.

         In January  2002,  ComEd entered into a 10-year  forward  starting swap
         with J. P. Morgan . This  forward  starting  swap,  carrying a notional
         amount of $125  million,  hedged a portion of ComEd's  future  interest
         rate exposure associated with its anticipated  issuance of $400 million
         in long-term debt in March 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  February  2002,  ComEd  entered  into  10-year  and 5-year  forward
         starting  swaps with  Morgan  Stanley (in two  separate  transactions).
         These forward starting swaps, carrying a notional amount of $75 million
         and $100  million  respectively,  hedged a portion  of  ComEd's  future
         interest  rate  exposure  associated  with its issuance of $200 million
         reopening in the third  quarter of 2002 and a $700 million  issuance in
         the  fourth  quarter  of  2002  respectively.  These  swaps  have  been
         designated  as  cash  flow  hedges  in  the  attempt  to  minimize  the
         variability of the future interest  expense  associated with changes in
         the 3 month LIBOR rate.


16.    The  name,  parent  company  and  amount  invested  in  any  intermediate
       subsidiary or financing  subsidiary  during the first quarter of 2002 and
       the amount and terms of any securities issued by such subsidiaries during
       the quarter.

                  None.

17.    A list of U-6B-2 forms filed with the Commission since the last quarterly
       Rule 24 Certificate, including the name of the filing entity and the date
       of filing.

                  None.





18.    The consolidated and separate balance sheets of each company that engaged
       in  jurisdictional  financing  transactions  during the first  quarter of
       2002.

            None.

19.    Capital Structure of Exelon and its utility  subsidiaries as of March 31,
       2002 are as follows (in millions, except percentage data):



                       Debt 1              Common Equity                   Preferred Securities of Subsidiaries
                  Amount     Percentage  Amount     Percentage                     Amount       Percentage
                                                                                  
Exelon           $14,660       63%       $8,051         34%                         $613            3%




                                                                   Preferred Stock and Mandatorily Redeemable
                        Debt 1              Common Equity                Preferred Stock of a Subsidiary
                  Amount     Percentage  Amount     Percentage               Amount       Percentage

                                                                            
PECO              $5,985        91%         $356        5%                       $284          4%

ComEd             $6,803        55%       $5,124       42%                       $336          3%

Genco             $1,025        26%       $2,932       74%                         -            -

PECO Energy
Power Co.            -            -         $128      100%                         -            -

Susquehanna
Power Co.            -            -         $120      100%                         -            -

Susquehanna
Electric Co.         -            -          $(1)     100%                         -            -


       1 see definition under Item 3.



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

21.    Registration  statements  filed  under  the  Securities  Act of 1933 with
       respect  to  securities  that  are  the  subject  of the  Financing  U-1,
       incorporated by reference into this Certificate of Notification.

         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:  May 30, 2002

                                                 EXELON CORPORATION

                                                 By: /s/ Ruth Ann M. Gillis
                                                 Senior Vice President and
                                                 Chief Financial Officer

























































                                                                       Exhibit B
                                                                     Page 1 of 1


                   Exelon Corporation and Subsidiary Companies
                           Retained Earnings Analysis
                      For the Quarter Ended March 31, 2002
                                  (In millions)


Beginning Balance                                    $1,200
Net Income                                                8
Dividends:
  Common Stock                                         (141)
Tax benefit on stock options exercised                    7
                                                     ------
  Ending Balance                                     $1,073
                                                     ======




                  PECO Energy Company and Subsidiary Companies
                           Retained Earnings Analysis
                      For the Quarter Ended March 31, 2002
                                  (In millions)


Beginning Balance                                      $270
Net Income                                               89
Dividends:
   Common Stock                                         (85)
   Preferred Stock                                       (2)
                                                     ------
Ending Balance                                         $272
                                                     ======


                  Commonwealth Edison and Subsidiary Companies
                           Retained Earnings Analysis
                      For the Quarter Ended March 31, 2002
                                  (In millions)


Beginning Balance                                      $257
  Net Income                                            129
  Dividends:
     Common Stock                                      (118)
                                                     ------
Ending Balance                                         $268
                                                     ======


                                Exelon Generation
                           Retained Earnings Analysis
                      For the Quarter Ended March 31, 2002
                                  (In millions)


Beginning Balance                                      $524
  Net Income                                             79
  Dividends:
     Common Stock                                         0
                                                     ------
Ending Balance                                         $603
                                                     ======






                            PECO Energy Power Company
                           Retained Earnings Analysis
                      For the Quarter Ended March 31, 2002
                                  (In millions)


Beginning Balance                                       $26
  Net Income                                              3
  Dividends:
     Common Stock                                         0
                                                       ----
Ending Balance                                          $29
                                                       ====


                            Susquehanna Power Company
                           Retained Earnings Analysis
                      For the Quarter Ended March 31, 2002
                                  (In millions)


Beginning Balance                                       $23
  Net Income                                              2
  Dividends:
     Common Stock                                         0
                                                       ----
Ending Balance                                          $25
                                                       ====


                          Susquehanna Electric Company
                           Retained Earnings Analysis
                      For the Quarter Ended March 31, 2002
                                  (In millions)


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