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


In the Matter of                                                 CERTIFICATE
Exelon Corporation                                                    OF
File No. 70-10189                                                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  financing and investment  orders.  This  certificate
reports  activity in File No.  70-10189  for the period  January 1, 2005 through
March 31, 2005.  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 A for Glossary of Defined Terms

1.   Financing  Order - The sales of any common stock,  Preferred  Securities or
     Equity-Linked Securities by Exelon and the purchase price per share and the
     market  price per share at the date of the  agreement  of sale which  shall
     also separately show the amount issued during the Authorization  Period for
     each type of issued  securities  (common  stock,  Preferred  Securities  or
     Equity-Linked Securities).

     None.

2.   Financing  Order - The total number of shares of Exelon common stock issued
     or issuable  under the options  granted  during the quarter under  employee
     benefit plans and dividend  reinvestment  plans including  employee benefit
     plans or dividend reinvestment plans later adopted together with the number
     of shares issued or issuable during the Authorization Period.

     Total  number  of  shares  issuable  through  the   Authorization   Period:
     42,000,000.

     Shares of common stock issued during the quarter: 4,504,411.

     Total number of shares issued through the Authorization Period: 10,705,163.





                                       1




3.   Financing  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.

     None.

4.   Financing  Order - If a guaranty is issued  during the quarter,  where such
     guarantee is not exempt under Rule 52, the name of the guarantor,  the name
     of the  beneficiary  of the guarantee and the amount,  terms and purpose of
     the guaranty.




                                                                                            

     ------------------ -------------------------------- ----------------- -------------- ---------------------
         Guarantor                Beneficiary                 Amount           Term             Purpose
     ------------------ -------------------------------- ----------------- -------------- ---------------------
     Exelon             Exelon Investment Holdings            $37,768,986     Five to 17  Surety bond
     Corporation                                                                   years
     ------------------ -------------------------------- ----------------- -------------- ---------------------
     Exelon             PECO                                  $30,623,567       One year  Surety bond
     Corporation
     ------------------ -------------------------------- ----------------- -------------- ---------------------




     The  total  amount of  guaranties  outstanding  at March 31,  2005 was $1.7
     billion.

5.   Financing  Order - The amount and terms of any Exelon  indebtedness  issued
     during  the  quarter  which  shall  also  separately  show  the  amount  of
     indebtedness issued during the Authorization Period.

     Exelon issued  commercial  paper during the quarter at an average  interest
     rate of 2.56%.  Exelon had $290 million in commercial paper  outstanding at
     March 31,  2005.  On March 7, 2005,  Exelon  entered into a $2 billion term
     loan  agreement,  which was fully  borrowed  as of March  31,  2005,  at an
     average  interest  rate of  3.40%.  The  loan  proceeds  were  used to fund
     discretionary contributions of $2 billion to Exelon's pension plans.

     Exelon has $6.8 billion of authority  remaining to issue securities  during
     the authorization period.

6.   Financing Order - The amount and terms of any short-term debt issued by any
     Utility  Subsidiary during the quarter which shall also separately show the
     outstanding  amount as of the end of the  applicable  period of  short-term
     debt of each Utility Subsidiary.

     a.   Overnight commercial paper issued through JP Morgan Chase on behalf of
          PECO during the first quarter:  Daily balances  ranged from $0 to $136
          million at an average interest rate of 2.71%.
     b.   Overnight  commercial paper issued on behalf of ComEd during the first
          quarter: ComEd had no commercial paper activity during the quarter.
     c.   Exelon, ComEd, PECO and Generation maintain a $1 billion 5-year credit
          facility  and  a  $500  million  3-year  credit  facility  to  support
          commercial  paper  issuances.  At March 31, 2005,  sublimits under the
          credit facility were $700 million, $50 million,  $300 million and $450
          million for Exelon, ComEd, PECO and 



                                       2



          Generation,  respectively.  Exelon,  ComEd,  PECO and  Generation  had
          approximately $700 million, $24 million, $300 million and $347 million
          of available  capacity under the credit  facilities at March 31, 2005.
          At March 31, 2005,  commercial  paper  outstanding was $290 million at
          Exelon and $36 million at PECO.  ComEd and Generation did not have any
          commercial paper outstanding at March 31, 2005.
     d.   Contributions  to and loans from the Utility Money Pool:  The activity
          below reflects  contributions to and loans from the Utility Money Pool
          for the quarter ending March 31, 2005.

       Contributions to the Utility Money Pool




                                                                                                  

        ----------------------------- ------------------------------------- --------------------------------
        Company                           Maximum Daily Contribution            Average Interest Rate
        ----------------------------- ------------------------------------- --------------------------------
        ComEd                                                 $517,000,000                            2.56%
        ----------------------------- ------------------------------------- --------------------------------
        PECO                                                  $210,000,000                            2.51%
        ----------------------------- ------------------------------------- --------------------------------
        Generation                                                      --                               NA
        ----------------------------- ------------------------------------- --------------------------------
        Unicom Investments                                      $2,500,000                            2.37%
        ----------------------------- ------------------------------------- --------------------------------

       Loans from the Utility Money Pool

        ----------------------------- ------------------------------------- --------------------------------
        Company                            Maximum Daily Borrowing               Average Interest Rate
        ----------------------------- ------------------------------------- --------------------------------
        ComEd                                                           --                               NA
        ----------------------------- ------------------------------------- --------------------------------
        Generation                                            $540,000,000                            2.56%
        ----------------------------- ------------------------------------- --------------------------------
        EBSC                                                  $156,000,000                            2.56%
        ----------------------------- ------------------------------------- --------------------------------
        PECO                                                            --                               NA
        ----------------------------- ------------------------------------- --------------------------------



     e.   Short-term debt outstanding at March 31, 2005.

         ---------------------------------- --------------------------------
                      Utility                           Amount
         ---------------------------------- --------------------------------
         ComEd                                                           --
         ---------------------------------- --------------------------------
         ComEd of Indiana                                                --
         ---------------------------------- --------------------------------
         Generation                                             $37,000,000
         ---------------------------------- --------------------------------
         PECO                                                   $36,000,000
         ---------------------------------- --------------------------------

7.   Financing Order - The amount and terms of any financings consummated by any
     Non-Utility  Subsidiary  that is not  exempt  under  rule  52  (see  U-6B-2
     requirement  in number 15 below  regarding  reports of  issuances  that are
     exempt)  which  shall  also  show   separately  the  amount  of  non-exempt
     securities  issued by  Non-Utility  Subsidiaries  during the  Authorization
     Period.

     None.

8.   Financing  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  which  shall  also
     separately show



                                       3



     the  outstanding  amount  of  Hedge  Instruments  or  Anticipatory   Hedges
     previously reported under this item.

     In the first  quarter of 2005,  Exelon  entered  into ten  forward-starting
     interest  rate swaps in the  aggregate  notional  amount of $1.0 billion to
     hedge interest rate exposure associated with future debt issuances. A table
     summarizing these transactions is presented below:




                                                                                                  

     ------------ --------------- ---------------- --------------------- -------------- ---------------------
       Entity       Trade Date    Effective Date     Notional Amount         Term           Counterparty
     ------------ --------------- ---------------- --------------------- -------------- ---------------------
     Exelon         1/13/2005        4/30/2005         $100,000,000        10 years     Citibank
     ------------ --------------- ---------------- --------------------- -------------- ---------------------
     Exelon         1/28/2005        6/30/2005         $100,000,000        10 years     Morgan Stanley
     ------------ --------------- ---------------- --------------------- -------------- ---------------------
     Exelon         2/08/2005        6/30/2005         $100,000,000        30 years     Morgan Stanley
     ------------ --------------- ---------------- --------------------- -------------- ---------------------
     Exelon         2/10/2005        6/30/2005         $100,000,000        30 years     Morgan Stanley
     ------------ --------------- ---------------- --------------------- -------------- ---------------------
     Exelon         2/10/2005        6/30/2005         $100,000,000        10 years     Dresdner
     ------------ --------------- ---------------- --------------------- -------------- ---------------------
     Exelon         2/15/2005        6/30/2005         $100,000,000        30 years     Lehman
     ------------ --------------- ---------------- --------------------- -------------- ---------------------
     Exelon         2/17/2005        6/30/2005         $100,000,000        10 years     Lehman
     ------------ --------------- ---------------- --------------------- -------------- ---------------------
     Exelon         2/23/2005        6/30/2005         $100,000,000        30 years     Lehman
     ------------ --------------- ---------------- --------------------- -------------- ---------------------
     Exelon         2/24/2005        6/30/2005         $100,000,000        10 years     JP Morgan
     ------------ --------------- ---------------- --------------------- -------------- ---------------------
     Exelon         3/01/2005        6/30/2005         $100,000,000        10 years     UBS
     ------------ --------------- ---------------- --------------------- -------------- ---------------------




     Exelon has  forward-starting  interest-rate swaps in the aggregate notional
     amount of $1,200 million.  At March 31, 2005,  these  interest-rate  swaps,
     designated as cash-flow  hedges,  had an aggregate fair market value of $42
     million  based on the present  value  difference  between the  contract and
     market rates at March 31, 2005. If these  derivative  instruments  had been
     terminated at March 31, 2005,  this  estimated  fair value  represents  the
     amount counterparties would pay Exelon.

     The  aggregate  fair value of Exelon's  interest-rate  swaps  designated as
     cash-flow  hedges that would have  resulted  from a  hypothetical  50 basis
     point  decrease in the spot yield at March 31, 2005 is  estimated to be $20
     million in the counterparties'  favor. If these derivative  instruments had
     been terminated at March 31, 2005, this estimated fair value represents the
     amount Exelon would pay the counterparties.

     The  aggregate  fair value of Exelon's  interest-rate  swaps  designated as
     cash-flow  hedges that would have  resulted  from a  hypothetical  50 basis
     point  increase in the spot yield at March 31, 2005 is  estimated to be $99
     million  in  Exelon's  favor.  If  these  derivative  instruments  had been
     terminated at March 31, 2005,  this  estimated  fair value  represents  the
     amount the counterparties would pay Exelon.

     In the first  quarter of 2005,  ComEd  entered  into four  forward-starting
     interest-rate  swaps in the  aggregate  notional  amount of $280 million to
     lock in interest-rate levels in anticipation of a future financing. A table
     summarizing these transactions is presented below:


                                       4





                                                                                

     ------------ --------------- ---------------- --------------------- -------------- ---------------------
     ComEd          3/21/2005       10/31/2005         $70,000,000         30 years     Merrill Lynch
     ------------ --------------- ---------------- --------------------- -------------- ---------------------
     ComEd          3/22/2005       10/31/2005         $70,000,000         30 years     Citibank
     ------------ --------------- ---------------- --------------------- -------------- ---------------------
     ComEd          3/29/2005       10/31/2005         $70,000,000         30 years     Citibank
     ------------ --------------- ---------------- --------------------- -------------- ---------------------
     ComEd          3/29/2005       10/31/2005         $70,000,000         30 years     Dresdner
     ------------ --------------- ---------------- --------------------- -------------- ---------------------




     These forward-starting interest-rate swaps, designated as cash-flow hedges,
     had an aggregate  fair market  value of $(3)  million  based on the present
     value  difference  between the contract and market rates at March 31, 2005.
     If these derivative instruments had been terminated at March 31, 2005, this
     estimated   fair  value   represents   the  amount   ComEd  would  pay  the
     counterparties.

     The  aggregate  fair value of ComEd's  interest-rate  swaps  designated  as
     cash-flow  hedges that would have  resulted  from a  hypothetical  50 basis
     point  decrease in the spot yield at March 31, 2005 is  estimated to be $25
     million in the counterparties'  favor. If these derivative  instruments had
     been terminated at March 31, 2005, this estimated fair value represents the
     amount ComEd would pay the counterparties.

     The  aggregate  fair value of ComEd's  interest-rate  swaps  designated  as
     cash-flow  hedges that would have  resulted  from a  hypothetical  50 basis
     point  increase in the spot yield at March 31, 2005 is  estimated to be $17
     million  in  ComEd's  favor.  If  these  derivative  instruments  had  been
     terminated at March 31, 2005,  this  estimated  fair value  represents  the
     amount the counterparties would pay ComEd.

9.   Financing  Order - (a) The  name and  parent  company  of any  Intermediate
     Subsidiary  or Financing  Subsidiary  created  during the quarter;  (b) the
     amount  invested in any  Intermediate  Subsidiary  or Financing  Subsidiary
     during the quarter,  and (c) the amount and terms of any securities  issued
     by  any  financing   subsidiaries  during  the  quarter  which  shall  also
     separately  show the amount of all securities  issued by such  subsidiaries
     during the Authorization Period.

a)   None.

b)   1.   PECO contributed $154,614,192 to PECO Wireless, LP.

     2.   PECO contributed $1,546,142 to ExTel Corporation, LLC.

     3.   Generation contributed $7,010,730 to Nuclear U.S. Holdings, Inc.

     4.   Nuclear  U.S.  Holdings,  Inc.  contributed  $70,107 to  Nuclear  U.S.
          Investments, LLC.

     5.   Nuclear U.S. Holdings, Inc. contributed $7,010,730 to Nuclear, LP.

     6.   Generation contributed $218,500 to Exelon SHC, Inc.

     7.   Generation   contributed   $4,168,400  to  Exelon  Peaker  Development
          Limited, LLC.



                                       5



     8.   AmerGen contributed $8,000 to AmerGen Consolidation, LLC.

c)   PEC Financial Services, LLC issued $145 million in intercompany debt during
     the quarter ended March 31, 2005.  PEC  Financial  Services has issued $423
     million of intercompany notes during the Authorization Period.

10.  Financing Order - If any Subsidiaries are Variable Interest Entities (VIEs)
     as that term is used in FASB Interpretation 46R,  Consolidation of Variable
     Interest  Entities,  provide a description  of any  financing  transactions
     conducted during the reporting period that were used to fund such VIEs.

     None.

11.  Financing  Order  -  If  any  financing  proceeds  are  used  for  VIEs,  a
     description   of  the   accounting   for  such   transactions   under  FASB
     Interpretation 46R.

     None.

12.  Financing 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 for the quarter ended March 31, 2005 for Exelon,  PECO, ComEd
     and  Generation,  Commission  File  Numbers  1-16169,  1-1401,  1-1839  and
     333-85496, respectively.





                                       6




13.  Financing 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. ($ in millions)


     ------------------------------------- ----------------- ------------

     Exelon                                     Amount          Ratio
     ------------------------------------- ----------------- ------------

     Common Equity                                   $9,713       40.24%
     ------------------------------------- ----------------- ------------

     Preferred Securities and Minority                   88        0.36%
     Interests
     ------------------------------------- ----------------- ------------

     Long-Term Debt (includes current                12,088        49.76
     maturities)
     ------------------------------------- ----------------- ------------

     Short-Term Debt                                  2,326        9.64%
     ------------------------------------- ----------------- ------------

     Total Capitalization                           $24,135      100.00%
     ------------------------------------- ----------------- ------------




     ------------------------------------ ------------------ ------------

     ComEd                                     Amount           Ratio
     ------------------------------------ ------------------ ------------

     Common Equity                                   $7,497       61.09%
     ------------------------------------ ------------------ ------------

     Preferred Securities and Minority                    7        0.05%
     Interests
     ------------------------------------ ------------------ ------------

     Long-Term Debt (includes current                 4,769       38.86%
     maturities)
     ------------------------------------ ------------------ ------------

     Short-Term Debt                                     --         n.m.
     ------------------------------------ ------------------ ------------

     Total Capitalization                           $12,273      100.00%
     ------------------------------------ ------------------ ------------





                                       7









     ------------------------------------ ------------------ ------------

     PECO                                      Amount           Ratio
     ------------------------------------ ------------------ ------------

     Common Equity                                   $1,468       23.23%
     ------------------------------------ ------------------ ------------

     Preferred                                           87        1.38%
     ------------------------------------ ------------------ ------------

     Long-Term Debt (includes current                 4,727       74.82%
     maturities)
     ------------------------------------ ------------------ ------------

     Short-Term Debt                                     36        0.57%
     ------------------------------------ ------------------ ------------

     Total Capitalization                            $6,318      100.00%
     ------------------------------------ ------------------ ------------




     ------------------------------------ ------------------ ------------

     Generation                                Amount           Ratio
     ------------------------------------ ------------------ ------------

     Member's Equity                                 $3,824       67.41%
     ------------------------------------ ------------------ ------------

     Minority Interest                                    2        0.03%
     ------------------------------------ ------------------ ------------

     Long-Term Debt (includes current                 1,810       31.91%
     maturities)
     ------------------------------------ ------------------ ------------

     Short-Term Debt                                     37        0.65%
     ------------------------------------ ------------------ ------------

     Total Capitalization                            $5,673      100.00%
     ------------------------------------ ------------------ ------------




     ------------------------------------ ------------------ ------------

     ComEd Indiana                             Amount           Ratio
     ------------------------------------ ------------------ ------------

     Common Equity                                       $5      100.00%
     ------------------------------------ ------------------ ------------

     Preferred                                           --         n.m.
     ------------------------------------ ------------------ ------------

     Long-Term Debt (includes current                    --         n.m.
     maturities)
     ------------------------------------ ------------------ ------------

     Short-Term Debt                                     --         n.m.
     ------------------------------------ ------------------ ------------

     Total Capitalization                                $5      100.00%

     ------------------------------------ ------------------ ------------



                                       8



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

     Retained Earnings analysis at March 31, 2005 (in millions):

     -------------------------------------- --------------------------------
     Exelon
     ------
     -------------------------------------- --------------------------------
     Beginning Balance                                               $3,353
     -------------------------------------- --------------------------------
     Net Income                                                         521
     -------------------------------------- --------------------------------
     Dividends:
     -------------------------------------- --------------------------------
        Common Stock                                                  (267)
     -------------------------------------- --------------------------------
     Ending Balance                                                  $3,607
     -------------------------------------- --------------------------------



     -------------------------------------- --------------------------------
     PECO
     -------------------------------------- --------------------------------
     Beginning Balance                                                 $607
     -------------------------------------- --------------------------------
     Net Income                                                         129
     -------------------------------------- --------------------------------
     Dividends:
     -------------------------------------- --------------------------------
        Common Stock                                                  (115)
     -------------------------------------- --------------------------------
        Preferred Stock                                                 (1)
     -------------------------------------- --------------------------------
     Ending Balance                                                    $620
     -------------------------------------- --------------------------------



     -------------------------------------- --------------------------------
     ComEd (a)
     -------------------------------------- --------------------------------
     Beginning Balance                                               $1,102
     -------------------------------------- --------------------------------
     Net Income                                                          70
     -------------------------------------- --------------------------------
     Dividends:
     -------------------------------------- --------------------------------
        Common Stock                                                  (138)
     -------------------------------------- --------------------------------
     Ending Balance                                                  $1,034
     -------------------------------------- --------------------------------

     (a)  As of March  31,  2005,  ComEd  had  appropriated  $1,034  million  of
          retained earnings for future dividend payments.

     -------------------------------------- --------------------------------
     ComEd of Indiana
     -------------------------------------- --------------------------------
     Beginning Balance                                                   $3
     -------------------------------------- --------------------------------
     Net Income                                                          --
     -------------------------------------- --------------------------------
     Dividends:
     -------------------------------------- --------------------------------
        Common Stock                                                     --
     -------------------------------------- --------------------------------
     Ending Balance                                                      $3
     -------------------------------------- --------------------------------



     -------------------------------------- --------------------------------
     Generation
     -------------------------------------- --------------------------------
     Beginning Balance                                                 $761
     -------------------------------------- --------------------------------
     Net Income                                                         320
     -------------------------------------- --------------------------------
     Distribution to Member                                            (239)
     -------------------------------------- --------------------------------
     Ending Balance                                                    $842
     -------------------------------------- --------------------------------



                                       9



15.  Investment Order - U-6B-2 (Financings Exempt from SEC Approval)

     o    Information that would be reported on a U-6B-2 for security  issuances
          by Utility  Subsidiaries  that are  exempt  from  approval  by the SEC
          (i.e., securities (long-term debt) approved by the State commissions).

         See Exhibit B, Item F.

     o    Securities issued by a Non-Utility Subsidiary (including  intercompany
          notes; but not money pool  transactions  which are reported under Item
          6)  that  are  exempt  from  approval  by the SEC  (i.e.,  Non-Utility
          Subsidiary securities issuances exempt under Rule 52).

         See Exhibit B, Items A through E.

16.  Financing 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 Exelon's Form S-4  Registration  Statement  under the Securities Act of
     1933 filed on February 10, 2005, File No. 333-12270 and as amended on April
     14, 2005 and May 16, 2005.

17.  Financing  Order  -  A  copy  of  relevant  documents  (e.g.,  underwriting
     agreements,  indentures,  bank agreements) for the relevant quarter will be
     filed with, or  incorporated by reference from 1933 Act or 1934 Act filings
     in such Rule 24 Certificates.

     From Exelon's March 31, 2005 10-Q:

     1.   Exhibit  No.  4-3-1  dated  February  15,  2005,   ComEd  $91  million
          tax-exempt First Mortgage Bond refinancing.

     2.   Exhibit No. 10-1 dated March 7, 2005,  Exelon  Corp.  $2 billion  term
          loan with Citibank.


18.  Financing 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 (i.e., $4 billion).

     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 Financing
     Order,  which  provides for a Modified Rule 53 Test  applicable to Exelon's
     investments  in EWGs and  FUCOs of  $4,000  million.  At  March  31,  2005,
     Exelon's  "aggregate  investment" (as defined in



                                       10



     rule  53(a)  under  PUHCA) in all EWGs and FUCOs was  approximately  $1,418
     million and, accordingly,  at March 31, 2005, Exelon's remaining investment
     capacity under the Modified Rule 53 Test was approximately  $2,582 million.
     At March 31, 2005, Exelon's "consolidated retained earnings" (as defined in
     rule 53(a) under PUHCA) was $3,276 million.

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

     Pursuant  to a request  for  confidential  treatment  under rule  104(b) of
     PUHCA,  Exelon is  concurrently  filing in paper  format as  Attachment  1,
     certain  information   concerning  the  aggregate  investment  by  EWG/FUCO
     Project.

20.  Financing Order - Total  capitalization  ratio of Exelon, with consolidated
     debt to include all short-term  debt and  nonrecourse  debt of all EWGs and
     FUCOs.

     At  March  31,  2005,  Exelon's  consolidated  capitalization  ratio  as so
     calculated was 49.76% debt,  40.24% common equity,  9.64%  short-term debt,
     and 0.36% minority interests and preferred securities. (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.)

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

     At March 31, 2005, the  market-to-book  ratio of Exelon's  common stock was
     3.19 to 1.00.

22.  Financing 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 preceding quarter.

     There was one  acquisition and one disposition of an EWG during the quarter
     ending March 31, 2005, as follows:

     On January  31,  2005,  subsidiaries  of  Generation  completed a series of
     transactions that resulted in Generation's sale of its investment in Sithe.
     Specifically,  subsidiaries  of  Generation  closed on the  acquisition  of
     Reservoir  Capital  Group's  50%  interest in Sithe and the sale of 100% of
     Sithe to  Dynegy,  Inc.  (Dynegy).  Prior to closing on the sale to Dynegy,
     subsidiaries of Generation received from Sithe approximately $65 million in
     cash  distributions.  As a  result  of  the  sale,  Exelon  and  Generation
     deconsolidated from their balance sheets approximately $820 million of debt
     and were released from approximately $125 million of credit support. Dynegy
     acquired  $32  million of cash as part of the sale of Sithe.  Additionally,
     Exelon  has  recorded  $53  million  of  liabilities   related  to  certain
     indemnifications   provided  to  Dynegy  and


                                       11



     other   liabilities   directly   resulting  from  the  transaction.   These
     liabilities  were taken into account in the final  determination of the net
     gain on the  sale of $21  million  (before  income  taxes).  See  Note 3 of
     Exelon's Notes to Consolidated  Financial  Statements  within Exelon's 2004
     Form  10-K  for  further  historical   information  regarding  Generation's
     investment in Sithe.

23.  Financing 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 Attachment 1 total
     earnings growth by EWG and FUCO project in the first quarter of 2005.

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

     Pursuant  to a request  for  confidential  treatment  under rule  104(b) of
     PUHCA,  Exelon is  concurrently  filing in paper format as  Attachment 1, a
     statement  of  revenue  and net income for each EWG and FUCO for the twelve
     months ended March 31, 2005.

25.  Investment  Order - Provide a copy of the  consolidated  balance  sheet and
     income statement for Ventures, Generation and Enterprises.

     Pursuant  to a request  for  confidential  treatment  under rule 104 (b) of
     PUHCA,  Exelon is  concurrently  filing in paper format as  Attachment 1, a
     consolidated   balance   sheet  and  income   statement  for  Ventures  and
     Enterprises  as of and for the quarter ended March 31, 2005.  See Form 10-Q
     for Generation filed on April 26, 2005.

26.  Investment  Order - A narrative  description of Development  Activities and
     amount expended on Development Activities during the quarter just ended.

     Pursuant  to a request  for  confidential  treatment  under rule 104 (b) of
     PUHCA,  Exelon is  concurrently  filing in paper format as  Attachment 1, a
     description  of Development  Activities and amount  expended on Development
     Activities during the quarter ended March 31, 2005.




27.  Investment  Order - A narrative  description of each investment made during
     the quarter just ended including:

     o    Name of the company and its immediate parent;


                                       12



     o    Method  of  investment   (e.g.,   (1)  purchases  of  capital  shares,
          partnership   interests,   member   interests  in  limited   liability
          companies,  trust  certificates or other forms of voting or non-voting
          equity interests; (2) capital contributions; (3) open account advances
          without interest;  (4) loans; and (5) guarantees  issued,  provided or
          arranged  in respect of the  securities  or other  obligations  of any
          Intermediate Subsidiaries;
     o    Type of company and/or its business  (e.g.,  EWG,  FUCO,  ETC, Rule 58
          Subsidiary,   Non-U.S.   Energy   related   Subsidiary,   Intermediate
          Subsidiary, Financing Subsidiary);
     o    With respect to Intermediate  Subsidiaries and Financing Subsidiaries,
          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; and
     o    With respect to Non-U.S.  Energy  Related  Subsidiaries,  the business
          engaged in and the location (countries) where it does business.




                                                                                                

---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
   Immediate       Company /    Type of Company      Method of     Rate of        Amount          Purpose
    Parent        Subsidiary      / Subsidiary      Investment     Interest
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
EED              ComEd          Utility           Capital             NA        $709,132,326  Used for
                                                  contribution                                pension funding
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           Ventures       Registered        Short-term loan  LIBOR        $842,145,936  Fund
                                holding company                    plus 110                   subsidiaries
                                                                   basis                      pension
                                                                    points
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           EED            Registered        Capital             NA        $759,648,603  Fund
                                holding company   contribution                                subsidiaries
                                                                                              pension
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           EBSC           Service company   Capital             NA        $245,709,130  Used for
                                                  contribution                                pension funding
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Ventures         Generation     Utility           Capital             NA        $842,145,936  Used for
                                                  contribution                                pension funding
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Generation       Susquehanna    EWG               Capital             NA          $3,396,736  Used for
                 Electric                         contribution                                pension funding
                 company
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Generation       AmerGen        EWG               Capital             NA         $14,021,460  Used for
                                                  contribution                                pension funding
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Generation       Nuclear U.S.   Intermediate      Capital             NA          $7,010,730  Fund
                 Holdings,      subsidiary        contribution                                subsidiaries
                 Inc.                                                                         pension
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Nuclear U.S.     Nuclear U.S.   Intermediate      Capital             NA             $70,107  Fund
Holdings, Inc    Investments,   subsidiary        contribution                                subsidiaries
                 LLC                                                                          pension
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Nuclear U.S.     Nuclear, LP    Intermediate      Capital             NA          $7,010,730  Fund
Holdings, Inc                   subsidiary        contribution                                subsidiaries
                                                                                              pension
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Generation       Exelon SHC,    Intermediate      Capital             NA          $1,021,800  Operating funds
                 Inc.           subsidiary        contribution
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Generation       Exelon         Intermediate      Capital             NA          $4,168,400  Operating funds
                 Peaker         subsidiary        contribution
                 Development
                 Limited, LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon Peaker    ExTex          EWG               Capital             NA          $4,210,500  Used for
Development      LaPorte                          contribution                                pension funding
Limited, LLC     Limited
                 Partnership
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
PECO             PECO           Intermediate      Capital             NA        $154,614,192  Used for
                 Wireless, LP   subsidiary        contribution                                investments
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
PECO             ExTel          Intermediate      Capital             NA          $1,546,142  Used for
                 Corporation,   subsidiary        contribution                                investments
                 LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon AOG       Exelon New     Rule 58           Capital             NA         $95,929,000  Operating funds
Holding 2, Inc.  England                          Contribution
                 Power
                 Marketing, LP
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon AOG       Exelon New     Rule 58           Capital             NA         $   969,000  Operating funds
Holding 1, Inc.  England                          Contribution
                 Power
                 Marketing, LP
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------



                                       13




---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Generation       Exelon         Rule 58           Capital             NA          $3,902,606  Used for
                 Energy                           contribution                                pension funding
                 Company
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Generation       Exelon Capital Intermediate      Capital             NA          $1,055,688  Fund
                 Consolidation  subsidiary        contribution                                decommissioning 
                                                                                              trusts
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           Limerick I     Decommissioning   Capital             NA              $1,000  Investments in
Generation       NQF, LLC       trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           PeachBottom    Decommissioning   Capital             NA            $274,000  Investments in
Generation       I NQF, LLC     trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           PeachBottom    Decommissioning   Capital             NA              $1,000  Investments in
Generation       II NQF, LLC    trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           PeachBottom    Decommissioning   Capital             NA              $1,000  Investments in
Generation       III NQF, LLC   trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           Dresden I      Decommissioning   Capital             NA          $1,721,600  Investments in
Generation       NQF, LLC       trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           Dresden II     Decommissioning   Capital             NA            $103,800  Investments in
Generation       NQF, LLC       trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           Dresden III    Decommissioning   Capital             NA            $354,000  Investments in
Generation       NQF, LLC       trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           LaSalle I      Decommissioning   Capital             NA             $77,700  Investments in
Generation       NQF, LLC       trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           LaSalle II     Decommissioning   Capital             NA             $56,300  Investments in
Generation       NQF, LLC       trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           Byron I NQF,   Decommissioning   Capital             NA              $1,800  Investments in
Generation       LLC            trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC

---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           Byron II       Decommissioning   Capital             NA             $34,000  Investments in
Generation       NQF, LLC       trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC

---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           Braidwood I    Decommissioning   Capital             NA              $6,300  Investments in
Generation       NQF, LLC       trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           Braidwood II   Decommissioning   Capital             NA              $1,000  Investments in
Generation       NQF, LLC       trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           Quad Cities    Decommissioning   Capital             NA             $91,300  Investments in
Generation       I NQF, LLC     trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           Quad Cities    Decommissioning   Capital             NA             $92,000  Investments in
Generation       II NQF, LLC    trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           Zion I NQF,    Decommissioning   Capital             NA            $113,800  Investments in
Generation       LLC            trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC

---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------




                                       14




---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           Zion II NQF,   Decommissioning   Capital             NA            $112,700  Investments in
Generation       LLC            trust             contribution                                decommissioning
Consolidation,                                                                                trusts
LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
AmerGen Energy   AmerGen        Intermediate      Capital             NA              $8,000  Investments in
Company          Consolidation, company           contribution                                decommissioning
                 LLC                                                                          trust
                                                                                              subsidiaries
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
AmerGen          AmerGen TMI    Decommissioning   Capital             NA              $2,000  Investments in
                 NQF, LLC       trust             contribution                                decommissioning
                                                                                              trusts
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
AmerGen          AmerGen        Decommissioning   Capital             NA              $2,000  Investments in
                 Oyster Creek   trust             contribution                                decommissioning
                 NQF, LLC                                                                     trusts
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
AmerGen          AmerGen        Decommissioning   Capital             NA              $2,000  Investments in
                 Clinton NQF,   trust             contribution                                decommissioning
                 LLC                                                                          trusts
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Generation       Exelon         Rule 58           Capital          NA             $4,547,988  Used for
                 PowerLabs,                       contribution                                pension funding
                 LLC
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Exelon           Enterprises    Intermediate      Revolving        Exelon's       $1,000,000  Operating
                                holding company   credit loan      commercial                 funds
                                                                     rate
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Enterprises      F&M Holdings   Rule 58           Revolving        LIBOR          $8,690,074  Operating funds
                 Company, LLC                     credit loan      plus 50
                                                                   basis
                                                                   points
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
F&M Holdings     II Services,   Rule 58           Revolving        LIBOR              $4,465  Operating funds
Company, LLC     Inc.                             credit loan      plus 50
                                                                   basis
                                                                   points
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
F&M Holdings     Fischbach &    Rule 58           Revolving        LIBOR         $12,146,390  Operating funds
Company, LLC     Moore                            credit loan      plus 50
                 Electric,                                         basis
                 Inc.                                               points
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------
Enterprises       Exelon        Rule 58           Revolving        LIBOR          $1,256,622  Operating
                 Services,                        credit loan      plus 50                    funds
                 Inc.                                               basis points
---------------- -------------- ----------------- ---------------- ---------- --------------- ----------------



28.  Investment Order - With respect to  reorganizations  during the quarter,  a
     narrative  description of the reorganization  together with specifics as to
     the assets or securities transferred,  the method of transfer and the price
     or other  consideration  for the  transfer,  and the names of the companies
     involved in the transfer.

     None.



29.  Investment Order - A chart showing,  as of the end of such quarterly period
     and  reflecting any  reorganization  accomplished  during the quarter,  all
     associated  companies  of  Exelon,  in  addition  to  Ventures,   that  are
     Non-Utility Subsidiaries and identifying each as an EWG, FUCO, ETC, Rule 58
     Subsidiary, Non-U.S.


                                       15



     Energy Related Subsidiary, Intermediate Subsidiary or Financing Subsidiary,
     as applicable,  and indicating Exelon's percentage equity ownership in each
     such entity.




                                                                                            

-------- ---------------------------------- ------------ ------------- -------------- ---------------------
 Tier                 Company                 Common        Parent     Other Voting      PUHCA Type of
                                              Shares                                      Business and
                                               Owned     Voting Power      Power           Authority
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Public Utility
         Exelon                                                                       Holding Company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   1     Exelon Business Services Company        1           100%           NA        Service Company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (Captive
   1     Unicom Assurance Company, Ltd.*        NA           100%           NA        insurance company)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Intermediate
   1     Exelon Investment Holdings, LLC        NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   1     Exelon Capital Trust I*                NA           100%           NA        Financing company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   1     Exelon Capital Trust II*               NA           100%           NA        Financing company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   1     Exelon Capital Trust III*              NA           100%           NA        Financing company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (tax
                                                                                      advantaged
   1     UII, LLC                               100          100%           NA        transactions)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (tax
                                                                                      advantaged
   2     Scherer Holdings 1, LLC                NA           100%           NA        transactions)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (tax
                                                                                      advantaged
   2     Scherer Holdings 2, LLC                NA           100%           NA        transactions)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (tax
                                                                                      advantaged
   2     Scherer Holdings 3, LLC                NA           100%           NA        transactions)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (tax
   2     Spruce Holdings, G.P.2000, LLC         NA           100%           NA        advantaged
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (tax
   2     Spruce Holdings, L.P.2000, LLC         NA           100%           NA        advantaged
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (tax
   3     Spruce Equity Holdings, L.P.           NA          99.0%       Spruce, LP    advantaged
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                NA          1.00%       Spruce, GP
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (tax
   4     Spruce Holdings Trust                  NA           100%           NA        advantaged
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (tax
   2     Wansley Holdings 1, LLC                NA           100%           NA        advantaged
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (tax
   2     Wansley Holdings 2, LLC                NA           100%           NA        advantaged
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Public utility
                                                                                      holding company,
   1     Exelon Ventures Company, LLC           NA           100%           NA        first tier
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   2     URI, LLC                               NA           100%           NA        Financing
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   2     Exelon Synfuel I, LLC                  NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                          Voting
                                                                        limited to
                                                                        tax credit
   3     DTE Buckeye, LLC                       NA           59%        activities    Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   2     Exelon Synfuel II, LLC                 NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                          Voting
                                                                        limited to
                                                                        tax credit
   3     DTE Belews Creek, LLC                  NA           99%        activities    Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   2     Exelon Synfuel III, LLC                NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                          Voting
                                                                        limited to
         Carbontronics Synfuels                                         tax credit
   3     Investors, L.P.                        NA          16.65%      activities    Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Public utility
   2     Exelon Generation Company, LLC         NA           100%           NA        company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in
         Exelon Generation Finance                                                    Financing
   3     Company, LLC                           NA           100%           NA        Order(Financing)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     NuStart Energy Development, LLC        NA          ~ 10%           NA        Development company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         ExTex Retail Services Company,
   3     LLC                                    NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     Penesco Company, LLC                   NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (Development
   3     Port City Power, LLC                   NA           100%           NA        Company)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------



                                       16




-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Southeast Chicago Energy
   3     Project, LLC                           NA           100%           NA        EWG
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (captive
   3     Concomber, Ltd.                        NA           100%           NA        insurance company)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     Cenesco Company, LLC                   NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Exelon Allowance Management
   3     Company, LLC                           NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     Susquehanna Electric Company          1,000         100%           NA        EWG
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Intermediate
   3     Exelon SHC, Inc.                       NA          85.00%      Generation    subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                NA          14.00%     Peaker DG, LP
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                NA          1.00%        Ventures
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Keystone Fuels, LLC                    NA          20.99%          NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Conemaugh Fuels, LLC                   NA          2.072%          NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Intermediate
   3     Nuclear US Holdings, Inc.            73,000         100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Intermediate
   4     Nuclear US Investments, LLC            NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                        Nuclear US
                                                                         Holdings,    Intermediate
   4     Nuclear, Limited Partnership           NA          99.00       Inc. as LP    subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                        Nuclear US
                                                                       Investments,
                                                            1.00%        LLC as GP
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   5     AmerGen Energy Company, LLC            NA          50.00%      Generation    EWG
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                         Nuclear,
                                                                          Limited
                                                NA          50.00%      Partnership
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Intermediate
   6     AmerGen Consolidation, LLC             NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   7     AmerGen TMI NQF, LLC                   NA           100%           NA        Intermediate
                                                                                      subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   7     AmerGen Oyster Creek NQF, LLC          NA           100%           NA        Intermediate
                                                                                      subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         AmerGen Clinton NQF, LLC                                                     Intermediate
   7                                            NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     TEG Holdings, LLC                      NA           100%           NA        Intermediate
                                                                                      subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Intermediate
   4     Tamuin International, Inc.             NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         North America Power Services,                                                Rule 58
   5     Inc.                                   NA           100%           NA
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Sithe Overseas Power Services,                                               Rule 58
   5     Ltd.                                   NA           100%           NA
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   5     Tamuin International Finance, LLC      NA           100%           NA        Financing
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Tamuin International Finance II,                                             Financing
   5     LLC                                    NA           100%           NA
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Tamuin Energy Management                                                     Rule 58
   5     Services, Inc.                         NA           100%           NA
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Tamuin Energy Management                                                     Rule 58
   5     Services II, Inc.                      NA           100%           NA
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Sithe Latin America Holdings,                                                Intermediate
   5     Ltd.                                   NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Intermediate
   6     Sithe Pardo Holdings, Ltd.             NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   7     Tamuin Holdings A, LLC                 NA           100%           NA        Financing
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Sithe Tamuin Energy Services II,                                             EWG
   8     S. de R.L. de C.V.                     NA           100%           NA
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   8     Tamuin Holdings III, LLC               NA           100%           NA        Financing
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Sithe Tamuin Investments II, S.                                              Intermediate
   9     de R.L. de C.V.                        NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
  10     Tamuin Mexican Business Trust II       NA          49.50%          NA        EWG
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Termoelectricia Penoles, S. de                                               EWG
  11     R.L. de C.V.                           NA          98.00%          NA
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   7     Sithe Tamuin Holdings, LLC             NA           100%           NA        Financing
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Sithe Tamuin Energy Services, S.                                             EWG
   8     de R.L. de C.V.                        NA           100%           NA
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   8     Tamuin Holdings II, LLC                NA           100%           NA        Financing
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Sithe Tamuin Investments, S. de                                              Intermediate
   9     R.L. de C.V.                           NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Tamuin Development, S. de R.L.                                               Rule 58
  10     de C.V.                                NA          50.00%          NA
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
  10     Tamuin Mexican Business Trust          NA          49.50%          NA        EWG
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Termoelectricia del Golfo, S. de                                             EWG
  11     R.L. de C.V.                           NA          98.00%          NA
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     PECO Energy Power Company            984,000        100%           NA        EWG
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Susquehanna Power Company           1,273,000       100%           NA        EWG
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         The Proprietors of the
   5     Susquehanna Canal                      NA           100%           NA        Inactive
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Exelon Generation International,                                             Intermediate
   3     Inc.                                   NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Exelon Peaker Development                                                    Intermediate
   3     General, LLC                           NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------



                                       17





-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Exelon Peaker Development                                                    Intermediate
   3     Limited, LLC                           NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                          Exelon
                                                                          Peaker
                                                                        Development
         ExTex LaPorte Limited                                           Limited,
   4     Partnership                            NA          99.00%          LLC       EWG
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                          Exelon
                                                                          Peaker
                                                                        Development
                                                            1.00%      General, LLC
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     ExTex Marketing, LLC                   NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                           ExTex
                                                                        Marketing,
   4     ExTex Power, LP                        NA          99.00%          LLC       Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                NA          1.00%       Generation
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Intermediate
   3     Exelon AOG Holdings # 1, Inc.          NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Intermediate
   3     Exelon AOG Holdings # 2, Inc.          NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                        Exelon AOG
         Exelon New England Power                                       Holdings #
   4     Marketing, LP                          NA          99.00%      2, Inc. LP    Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                        Exelon AOG
                                                                        Holdings #
                                                NA          1.00%       1, Inc. GP
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Intermediate
   3     Exelon New England Holdings, LLC       NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     ENEH Services, LLC                     NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Exelon New England Development,
   4     LLC                                    NA           100%           NA        Development company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Exelon Wyman, LLC                      NA           100%           NA        EWG
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Exelon Edgar, LLC                      NA           100%           NA        EWG
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Exelon Framingham, LLC                 NA           100%           NA        EWG
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Exelon Framingham Development,
   4     LLC                                    NA           100%           NA        Development company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Exelon West Medway, LLC                NA           100%           NA        EWG
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Exelon West Medway Expansion, LLC      NA           100%           NA        Development company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Exelon West Medway Development,
   4     LLC                                    NA           100%           NA        Development company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Exelon New Boston, LLC                 NA           100%           NA        EWG
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Exelon Hamilton, LLC                   NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     Exelon PowerLabs, LLC                  NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Exelon Generation Consolidation,                                             Intermediate
   3     LLC                                    NA           100%           NA        subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Braidwood 1 NQF, LLC                   NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Braidwood 2 NQF, LLC                   NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Byron 1 NQF, LLC                       NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Byron 2 NQF, LLC                       NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Dresden 1 NQF, LLC                     NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Dresden 2 NQF, LLC                     NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Dresden 3 NQF, LLC                     NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     LaSalle 1 NQF, LLC                     NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     LaSalle 2 NQF, LLC                     NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Limerick 1  NQF, LLC                   NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Limerick 2 NQF, LLC                    NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------



                                       18




-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     PeachBottom 1 NQF, LLC                 NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     PeachBottom 2 NQF, LLC                 NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     PeachBottom 3 NQF, LLC                 NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Quad Cities 1 NQF, LLC                 NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Quad Cities 2 NQF, LLC                 NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Salem 1 NQF, LLC                       NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Salem 2 NQF, LLC                       NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Zion 1 NQF, LLC                        NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Successor to trusts
                                                                                      approved in the
   4     Zion 2 NQF, LLC                        NA           100%           NA        merger order
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     Exelon Energy Company                  100          100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         AllEnergy Gas & Electric
   4     Marketing Company, LLC                 NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   5     Texas Ohio Gas, Inc.                   100          100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Non-utility holding
   2     Exelon Enterprises Company, LLC        NA           100%           NA        company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
         Exelon Enterprises Management,                                               Order (Rule 58 and
   3     Inc.                                                100%           NA        Telecommunications)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     CIC Global, LLC                        NA          50.00           NA        ETC
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     UniGrid Energy, LLC                    NA          50.00%          NA        ETC
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Phoenix Foods, LLC                     NA          5.00%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     ECPH, LLC                              NA           100%           NA        Hold ETC investments
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (energy
         UTECH Climate Challenge Fund,                                                related - venture
   5     L.P.                                   NA          24.30%          NA        capital Rule 58)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         ECP Telecommunications Holdings,
   5     LLC                                    NA           100%           NA        Hold ETCs
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   6     Everest Broadband Networks             NA          15.50%          NA        ETC
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   6     Exotrope, Inc.                         NA          < 10%           NA        ETC
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   6     Media Station, Inc.                    NA          2.48%           NA        ETC
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   6     SoftComp, Inc. (Permits Now)           NA          15.51%          NA        Inactive
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   6     VITTS Network Group, Inc.              NA          20.26%          NA        ETC
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   6     OmniChoice.com, Inc.                               30.10%          NA        ETC
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   6     WorldWide Web Network Corp                        < 10.00%         NA        ETC
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
         Exelon Enterprises Investments,                                              Order (Rule 58 and
   5     Inc.                                                100%           NA        ETCs)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     F&M Holdings Company, LLC              NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Oldco VSI, Inc.                        100          100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   5     EGW Meter Services, LLC                NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     II Services, Inc.                                   100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   5     EIS Engineering, Inc.                               100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   6     InfraSource Field Services, LLC        NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     NEWCOSY, Inc.                           1           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Fischbach and Moore Electric,
   4     Inc.                                    1           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     NEWCOTRA, Inc.                          1           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   5     Fischbach and Moore, Inc.               1           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Fischbach and Moore Electrical
   6     Contracting, Inc.                       1           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------



                                       19



-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   6     T.H. Green Electric Co, Inc.            1           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   5     Rand-Bright Corporation                 1           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   5     OSP Servicios S.A. de C.V.*                         100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     EIS Investments, LLC*                  NA           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     Exelon Services, Inc.                               100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     Unicom Power Marketing, Inc.           100          100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     Adwin Equipment Company                             100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3      Exelon Thermal Holdings, Inc.         100          100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     ETT North America, Inc.                10           100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Merger Order
                                                                                      Reserved
                                                                                      Jurisdiction;
                                                                                      Investment U-1 in
                                                                                      Docket 70-9691
         Northwind Thermal Technologies                                               (Rule 58 operating
   5     Canada, Inc.                           10           100%           NA        outside the U.S.)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Merger Order
                                                                                      Reserved
                                                                                      Jurisdiction;
                                                                                      Investment U-1 in
                                                                                      Docket 70-9691
                                                                                      (Rule 58 operating
   6     ETT Canada, Inc.                       10           100%           NA        outside the U.S.)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Merger Order
                                                                                      Reserved
                                                                                      Jurisdiction;
                                                                                      Investment U-1 in
                                                                                      Docket 70-9691
                                                                                      (Rule 58 operating
   7     Northwind Windsor                      NA          50.00%          NA        outside the U.S.)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Exelon Thermal Development, Inc.       100          100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     ETT Boston, Inc.                       100          100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Northwind Boston, LLC                  NA          25.00%          NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Intermediate public
          Exelon Energy Delivery Company,                                             utility holding
   1     LLC                                    NA           100%           NA        company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Electric and gas
   2     PECO Energy Company                170,478,507      100%           NA        utility company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         East Coast Natural Gas
   3     Cooperative, LLP                       NA          41.12%          NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     Horizon Energy Company*               1,000         100%           NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Merger Order
                                                                                      reserved
                                                                                      jurisdiction (real
   3     Adwin Realty Company                  1,000         100%           NA        estate)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     Ambassador II Joint Venture*           NA          50.00%          NA        Merger Order
                                                                                      reserved
                                                                                      jurisdiction (real
                                                                                      estate)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Merger Order
                                                                                      reserved
                                                                                      jurisdiction (real
   4     Bradford Associates                    NA          50.00%          NA        estate)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Merger Order
                                                                                      reserved
                                                                                      jurisdiction (real
   4     Henderson Ambassador Associates        NA          50.00%          NA        estate)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     PECO Energy Transition Trust           NA           100%           NA        Approved in Merger
                                                                                      Order (financing)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     PECO Energy Capital Corp              1,000         100%           NA        Approved in Merger
                                                                                      Order (financing)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
   4     PECO Energy Capital Trust III          NA           100%           NA        Order (financing)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
   4     PECO Energy Capital, LP                NA          3.00%           NA        Order (financing)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     PECO Energy Capital Trust IV           NA           100%           NA        Financing
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     PECO Energy Capital Trust V            NA           100%           NA        Financing
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     PECO Energy Capital Trust VI           NA           100%           NA        Financing
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Intermediate
   3     ExTel Corporation, LLC                 NA           100%           NA        Subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Intermediate
   4     PECO Wireless, LP                      NA          99.00%         PECO       subsidiary
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                            1.00%          ExTel
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
   5     ATNP Finance Company                   100          100%           NA        Order (financing)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
   5     PEC Financial Services, LLC            NA           100%           NA        Order (financing)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Adwin (Schuykill) Cogeneration,
   3     Inc.                                               50.00%          NA        Rule 58
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Public utility
                                                                                      holding company,
                                                                                      second tier,
                                                                                      electric utility
   2     Commonwealth Edison Company        127,016,488     99.90%          NA        company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         Commonwealth Edison Company of                                               Electric utility
   3     Indiana, Inc.                        908,084        100%           NA        company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   3     ComEd Financing II                     NA           100%           NA        Approved in Merger
                                                                                      Order (financing)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------




                                       20



-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
   3     ComEd Financing III                    NA           100%           NA        Order (financing)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
   3     ComEd Funding, LLC                     NA           100%           NA        Order (financing)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
   4     ComEd Transitional Funding Trust       NA           100%           NA        Approved in Merger
                                                                                      Order (financing)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Approved in Merger
                                                                                      Order (economic and
                                                                                      community
   3     Edison Development Company             741          100%           NA        development)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Merger Order
                                                                                      Reserved
                                                                                      Jurisdiction;
                                                                                      Investment U-1 in
                                                                                      Docket 70-9691
                                                                                      (economic and
                                                                                      community
   3     Edison Development Canada, Inc.      15,158         100%           NA        development)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
                                                                                      Merger Order
                                                                                      Reserved
                                                                                      Jurisdiction;
                                                                                      Investment U-1 in
                                                                                      Docket 70-9691
                                                                                      (economic and
                                                                                      community
   4     Edison Finance Partnership             NA           100%           NA        development)
-------- ---------------------------------- ------------ ------------- -------------- ---------------------
         * Inactive company
-------- ---------------------------------- ------------ ------------- -------------- ---------------------



Changes During the Quarter

Name Changes
------------
Sithe International, Inc. name changed to
Tamuin International, Inc.
January 26, 2005

Sithe Energy Management Services, Inc. name changed to
Tamuin Energy Management Services, Inc.
January 1, 2005

Sithe Energy Management Services II, Inc. name changed to
Tamuin Energy Management Services II, Inc.
January 1, 2005

Sithe Tamuin Holdings II, LLC name changed to
Tamuin Holdings II, LLC
January 26, 2005

Sithe Tamuin Development Services, S. de R.L. de C.V. name changed to
Tamuin Development Services, S. de R.L. de C.V.
January 1, 2005

Sithe Tamuin Holdings III, LLC name changed to
Tamuin Holdings III, LLC
January 26, 2005




                                       21



Sithe Tamuin Holdings A, LLC name changed to
Tamuin Holdings A, LLC
January 1, 2005

Sithe Tamuin Holdings, LLC name changed to 
Tamuin Holdings, LLC March 15, 2005

Sithe International Finance II, LLC name changed to 
Tamuin International Finance II, LLC
March 29, 2005

Sithe International Finance, LLC name changed to
Tamuin International Finance, LLC
March 15, 2005

Dissolutions
------------

EEI Telecommunications Holdings, LLC
Dissolved March 31, 2005

Exelon Communications Holdings, LLC
Dissolved March 31, 2005

PHT Holdings, LLC
Dissolved March 31, 2005

Exelon Communications Company, LLC
Dissolved March 31, 2005

Dispositions During the Year
----------------------------

ExRES Power Holdings, Inc.
Sold on January 31, 2005

Sithe Energies, Inc.
Sold on January 31, 2005

EXRES SHC, Inc.
Sold on January 31, 2005


                                       22




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 31, 2005

                                                  EXELON CORPORATION

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


                                       23





                                    Exhibit A
                                    ---------

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

AmerGen                    AmerGen Energy Company, LLC
AOG # 1                    Exelon AOG Holding # 1, Inc.
AOG # 2                    Exelon AOG Holding # 2, Inc.
Authorization Period       April 1, 2004 through April 15, 2007
ComEd                      Commonwealth Edison Company
ComEd of Indiana           Commonwealth Edison Company of Indiana, Inc.
EBSC                       Exelon Business Services Company
Exelon                     Exelon Corporation
Enterprises                Exelon Enterprises Company, LLC
EED                        Exelon Energy Delivery Company, LLC
Equity                     Linked Securities Securities, including units
                           consisting of a combination of incorporated options,
                           warrants and/or forward equity purchase contracts
                           with debt, preferred stock, or Preferred Securities.
ERCs                       Energy Related Companies
ETCs                       Exempt telecommunications companies
EWGs                       Exempt wholesale generators
ExTel                      ExTel Corporation, LLC
Financing Order            SEC financing order issued to Exelon on April 1, 
                           2004, for the period April 1, 2004 through 
                           April 15, 2007
FUCO                       Foreign utility company
ExTex                      ExTex LaPorte Limited Partnership
Generation                 Exelon Generation Company, LLC
GenFinance                 Exelon Generation Finance Company
GP                         General partner
Investment Order           SEC investment order issued to Exelon on 
                           June 27, 2002, for the period June 30, 2000 through
                           June 30, 2005
LIBOR                      London interbank offered rate
LP                         Limited Partner
n.m.                       Not meaningful
Peaker DG                  Exelon Peaker Development General, LLC
Peaker DL                  Exelon Peaker Development Limited, LLC
PECO                       PECO Energy Company
PEPCO                      PECO Energy Power Company
Power Holdings             Exelon Power Holdings, LP
PETT                       PECO Energy Transition Trust
Preferred Securities       Including, specifically, trust preferred securities, 
                           or monthly income preferred securities. 
Sithe                      Sithe Energies, Inc.
ENEH                       Exelon New England Holdings, LLC
Southeast Chicago          Southeast Chicago Energy Project, LLC
SECO                       Susquehanna Electric Company
SPCO                       Susquehanna Power Company
Spruce, GP                 Spruce Holdings GP 2000, LLC
Spruce, LP                 Spruce Holdings LP 2000, LLC
Ventures                   Exelon Ventures Company, LLC



                                       24




                               Exhibit B - Item 15
                               -------------------
A.  
--
Enterprises has issued the security described herein which issue was exempted
from the provisions of section 6(a) of the Act and was neither the subject of a
declaration or application on Form U-1 nor included within the exemption
provided by Rule U-48.

1.   Type of securities (draft, promissory note): Revolving credit loan.

2.   Issue, renewal or guaranty: Issue.

3.   Principal amount of each security: $1,000,000.

4.   Rate of interest per annum of each security: Exelon's commercial rate.

5.   Date of issue, renewal or guaranty of each security: March 25, 2005.

6.   If renewal of security, give date of original issue: Not applicable.

7.   Date of maturity of each security (in the case of demand notes, indicate
     demand): Revolving credit.

8.   Name of the person to whom each security was issued, renewed or guaranteed:
     Exelon.

9.   Collateral given with each security: None.

10.  Consideration given for each security: Cash.

11.  Application of proceeds for each security: The proceeds from this issuance
     were used for operating funds.

12.  Indicate by a check after the applicable statement below whether the issue,
     renewal or guaranty of each security was exempt from the provisions of
     Section (a) because of:
     a.   the provisions contained in the first sentence of section 6 (b): [ ]
     b.   the provisions contained in the fourth sentence 6 (b): [ ]
     c.   the provisions in any rule of the Commission other than Rule U-48: [X]

13.  If the security or securities are exempt from the provisions of section
     6(a) by virtue of Section 6(b), give the figures that indicate that the
     securities or securities aggregate (together with all other then
     outstanding notes and drafts of a maturity of nine months or less,
     exclusive of days of grace, as to which such company is primarily or
     secondarily liable) not more than 5 per centum of the principle amount and
     par value of the other securities of such company then outstanding. (Demand
     notes, regardless of how long they may have been outstanding, shall be
     considered as maturing in not more than nine months for



                                       25



     the purpose of the exemption from Section 6(a) of the Act granted by the 
     first sentence of section 6(b): Not Applicable.

14.  If the securities are exempt from the provisions of section 6 (a) because
     of the fourth sentence of section 6 (b), name the security outstanding on
     January 1, 1935, pursuant to the terms of which the security or securities
     herein described have been issued: Not Applicable.

15.  If the securities are exempt from the provisions of section 6 (a) because
     of any rule of the Commission other than Rule U-48 designate the rule under
     which exemption is claimed: Rule 52 (b).


                                       26




B.
--

II Services has issued the security described herein which issue was exempted
from the provisions of section 6(a) of the Act and was neither the subject of a
declaration or application on Form U-1 nor included within the exemption
provided by Rule U-48.

1.   Type of securities (draft, promissory note): Revolving credit loan.

2.   Issue, renewal or guaranty: Issue.

3.   Principal amount of each security: $4,465.

4.   Rate of interest per annum of each security: One month LIBOR plus 50 basis
     points.

5.   Date of issue, renewal or guaranty of each security: Various, first quarter
     2005, 2004.

6.   If renewal of security, give date of original issue: Not applicable.

7.   Date of maturity of each security (in the case of demand notes, indicate
     demand): Revolving credit.

8.   Name of the person to whom each security was issued, renewed or guaranteed:
     F&M Holdings Company, LLC.

9.   Collateral given with each security: None.

10.  Consideration given for each security: Cash.

11.  Application of proceeds for each security: The proceeds from the revolving
     credit loan were used to provide operating funds.

12.  Indicate by a check after the applicable statement below whether the issue,
     renewal or guaranty of each security was exempt from the provisions of
     Section (a) because of:
     a.   the provisions contained in the first sentence of section 6 (b): [ ]
     b.   the provisions contained in the fourth sentence 6 (b): [ ]
     c.   the provisions in any rule of the Commission other than Rule U-48: [X]

13.  If the security or securities are exempt from the provisions of section
     6(a) by virtue of Section 6(b), give the figures that indicate that the
     securities or securities aggregate (together with all other then
     outstanding notes and drafts of a maturity of nine months or less,
     exclusive of days of grace, as to which such company is primarily or
     secondarily liable) not more than 5 per centum of the principle amount and
     par value of the other securities of such company then outstanding. (Demand
     notes, regardless of how long they may have been 



                                       27



     outstanding,  shall be  considered as maturing in not more than nine months
     for the purpose of the  exemption  from  Section 6(a) of the Act granted by
     the first sentence of section 6(b): Not Applicable.

14.  If the securities are exempt from the provisions of section 6 (a) because
     of the fourth sentence of section 6 (b), name the security outstanding on
     January 1, 1935, pursuant to the terms of which the security or securities
     herein described have been issued: Not Applicable.

15.  If the securities are exempt from the provisions of section 6 (a) because
     of any rule of the Commission other than Rule U-48 designate the rule under
     which exemption is claimed: Rule 52 (b).






                                       28




C.  
--
Exelon Services, Inc. has issued the security described herein which issue was
exempted from the provisions of section 6(a) of the Act and was neither the
subject of a declaration or application on Form U-1 nor included within the
exemption provided by Rule U-48.

1.   Type of securities (draft, promissory note): Revolving credit loan.

2.   Issue, renewal or guaranty: Issue.

3.   Principal amount of each security: $1,256,622.

4.   Rate of interest per annum of each security: LIBOR plus 50 basis points.

5.   Date of issue,  renewal or guaranty of each  security:  January 14, 2005 in
     the amount of $316,533 and March 16, 2005 in the amount of $940,089.

6.   If renewal of security, give date of original issue: Not applicable.

7.   Date of maturity of each  security (in the case of demand  notes,  indicate
     demand): Revolving credit.

8.   Name of the person to whom each security was issued, renewed or guaranteed:
     Enterprises.

9.   Collateral given with each security: None.

10.  Consideration given for each security: Cash.

11.  Application of proceeds for each security:  The proceeds from the revolving
     credit loan were used to provide operating funds.

12.  Indicate by a check after the applicable statement below whether the issue,
     renewal or guaranty of each security was exempt from the provisions of
     Section (a) because of:         
     a.   the provisions contained in the first sentence of section 6 (b): [ ]
     b.   the provisions contained in the fourth sentence 6 (b): [ ]
     c.   the provisions in any rule of the Commission other than Rule U-48: [X]

13.  If the security or  securities  are exempt from the  provisions  of section
     6(a) by virtue of Section  6(b),  give the figures that  indicate  that the
     securities  or  securities   aggregate   (together   with  all  other  then
     outstanding  notes  and  drafts  of a  maturity  of nine  months  or  less,
     exclusive  of days of grace,  as to which  such  company  is  primarily  or
     secondarily  liable) not more than 5 per centum of the principle amount and
     par value of the other securities of such company then outstanding. (Demand
     notes,  regardless  of how long  they may have been  outstanding,  shall be
     considered  as maturing in not more than nine months for


                                       29



     the purpose of the  exemption  from  Section 6(a) of the Act granted by the
     first sentence of section 6(b): Not applicable.

14.  If the  securities  are exempt from the provisions of section 6 (a) because
     of the fourth  sentence of section 6 (b), name the security  outstanding on
     January 1, 1935,  pursuant to the terms of which the security or securities
     herein described have been issued: Not applicable.

15.  If the  securities  are exempt from the provisions of section 6 (a) because
     of any rule of the Commission other than Rule U-48 designate the rule under
     which exemption is claimed: Rule 52 (b).





                                       30




D.  
----
Fischbach & Moore Electric, Inc. has issued the security described herein which
issue was exempted from the provisions of section 6(a) of the Act and was
neither the subject of a declaration or application on Form U-1 nor included
within the exemption provided by Rule U-48.

1.   Type of securities (draft, promissory note): Revolving credit loan.

2.   Issue, renewal or guaranty: Issue.

3.   Principal amount of each security: $12,146,390.

4.   Rate of interest per annum of each security: LIBOR plus 50 basis points.

5.   Date of issue,  renewal or guaranty of each security:  January 10, 2005, in
     the amount of $2,250,000 and March 16, 2005 in the amount of $9,896,390.

6.   If renewal of security, give date of original issue: Not applicable.

7.   Date of maturity of each  security (in the case of demand  notes,  indicate
     demand): Revolving credit.

8.   Name of the person to whom each security was issued, renewed or guaranteed:
     Enterprises.

9.   Collateral given with each security: None.

10.  Consideration given for each security: Cash.

11.  Application of proceeds for each security:  The proceeds from this issuance
     were used for operating funds.

12.    Indicate by a check after the applicable statement below whether the
       issue, renewal or guaranty of each security was exempt from the
       provisions of Section
      (a) because of:
     a.   the provisions contained in the first sentence of section 6 (b): [ ]
     b.   the provisions contained in the fourth sentence 6 (b): [ ]
     c.   the provisions in any rule of the Commission other than Rule U-48: [X]

13.  If the security or  securities  are exempt from the  provisions  of section
     6(a) by virtue of Section  6(b),  give the figures that  indicate  that the
     securities  or  securities   aggregate   (together   with  all  other  then
     outstanding  notes  and  drafts  of a  maturity  of nine  months  or  less,
     exclusive  of days of grace,  as to which  such  company  is  primarily  or
     secondarily  liable) not more than 5 per centum of the principle amount and
     par value of the other securities of such company then 



                                       31



     outstanding.  (Demand  notes,  regardless  of how long  they may have  been
     outstanding,  shall be  considered as maturing in not more than nine months
     for the purpose of the  exemption  from  Section 6(a) of the Act granted by
     the first sentence of section 6(b): Not Applicable.

14.  If the  securities  are exempt from the provisions of section 6 (a) because
     of the fourth  sentence of section 6 (b), name the security  outstanding on
     January 1, 1935,  pursuant to the terms of which the security or securities
     herein described have been issued: Not Applicable.

15.  If the  securities  are exempt from the provisions of section 6 (a) because
     of any rule of the Commission other than Rule U-48 designate the rule under
     which exemption is claimed: Rule 52 (b).




                                       32




E.  
--
F&M Holdings Company, LLC has issued the security described herein which issue
was exempted from the provisions of section 6(a) of the Act and was neither the
subject of a declaration or application on Form U-1 nor included within the
exemption provided by Rule U-48.

1.   Type of securities (draft, promissory note): Revolving credit loan.

2.   Issue, renewal or guaranty: Issue.

3.   Principal amount of each security: $8,690,074.

4.   Rate of interest per annum of each security: LIBOR plus 50 basis points.

5.   Date of issue, renewal or guaranty of each security: March 16, 2005.

6.   If renewal of security, give date of original issue: Not applicable.

7.   Date of maturity of each  security (in the case of demand  notes,  indicate
     demand): Revolving credit.

8.   Name of the person to whom each security was issued, renewed or guaranteed:
     Enterprises.

9.   Collateral given with each security: None.

10.  Consideration given for each security: Cash.

11.  Application of proceeds for each security:  The proceeds from this issuance
     were used for operating funds.

12.  Indicate by a check after the applicable statement below whether the issue,
     renewal or guaranty of each  security  was exempt  from the  provisions  of
     Section (a) because of: 
     a.   the provisions contained in the first sentence of section 6 (b): [ ]
     b.   the provisions contained in the fourth sentence 6 (b): [ ]
     c.   the provisions in any rule of the Commission other than Rule U-48: [X]

13.  If the security or  securities  are exempt from the  provisions  of section
     6(a) by virtue of Section  6(b),  give the figures that  indicate  that the
     securities  or  securities   aggregate   (together   with  all  other  then
     outstanding  notes  and  drafts  of a  maturity  of nine  months  or  less,
     exclusive  of days of grace,  as to which  such  company  is  primarily  or
     secondarily  liable) not more than 5 per centum of the principle amount and
     par value of the other securities of such company then outstanding. (Demand
     notes,  regardless  of how long  they may have been  outstanding,  shall be
     considered  as maturing in not more than nine months for



                                       33



     the purpose of the  exemption  from  Section 6(a) of the Act granted by the
     first sentence of section 6(b): Not Applicable.

14.  If the  securities  are exempt from the provisions of section 6 (a) because
     of the fourth  sentence of section 6 (b), name the security  outstanding on
     January 1, 1935,  pursuant to the terms of which the security or securities
     herein described have been issued: Not Applicable.

15.  If the  securities  are exempt from the provisions of section 6 (a) because
     of any rule of the Commission other than Rule U-48 designate the rule under
     which exemption is claimed: Rule 52 (b).







                                       34



F.  
--
ComEd has issued the security described herein which issue was exempted from the
provisions of section 6(a) of the Act and was neither the subject of a
declaration or application on Form U-1 nor included within the exemption
provided by Rule U-48.

1.   Type of securities  (draft,  promissory  note):  Illinois Finance Authority
     Pollution Control Revenue Refunding Bonds.

2.   Issue, renewal or guaranty: Issue.

3.   Principal amount of each security: $91,000,000.

4.   Rate of interest per annum of each security: Auction rate.

5.   Date of issue, renewal or guaranty of each security: March 17, 2005.

6.   If renewal of security, give date of original issue: Not applicable.

7.   Date of maturity of each  security (in the case of demand  notes,  indicate
     demand): March 1, 2017.

8.   Name of the person to whom each security was issued, renewed or guaranteed:
     Various.

9.   Collateral given with each security: First mortgage bond.

10.  Consideration given for each security: Cash.

11.  Application of proceeds for each security:  The proceeds from this issuance
     were used to refinance previously issued pollution control revenue bonds.

12.    Indicate by a check after the applicable statement below whether the
       issue, renewal or guaranty of each security was exempt from the
       provisions of Section
      (a) because of:
          a.   the provisions  contained in the first sentence of section 6 (b):
               [ ]
          b.   the provisions contained in the fourth sentence 6 (b): [ ] 
          c.   the  provisions  in any rule of the  Commission  other  than Rule
               U-48: [X]

13.  If the security or  securities  are exempt from the  provisions  of section
     6(a) by virtue of Section  6(b),  give the figures that  indicate  that the
     securities  or  securities   aggregate   (together   with  all  other  then
     outstanding  notes  and  drafts  of a  maturity  of nine  months  or  less,
     exclusive  of days of grace,  as to which  such  company  is  primarily  or
     secondarily  liable) not more than 5 per centum of the principle amount and
     par value of the other securities of such company then outstanding. (Demand
     notes,  regardless  of how long  they may have been  outstanding,  shall be
     considered  as maturing in not more than nine months for



                                       35


     the purpose of the  exemption  from  Section 6(a) of the Act granted by the
     first sentence of section 6(b): Not Applicable.

14.  If the  securities  are exempt from the provisions of section 6 (a) because
     of the fourth  sentence of section 6 (b), name the security  outstanding on
     January 1, 1935,  pursuant to the terms of which the security or securities
     herein described have been issued: Not Applicable.

15.  If the  securities  are exempt from the provisions of section 6 (a) because
     of any rule of the Commission other than Rule U-48 designate the rule under
     which exemption is claimed: Rule 52 (a).






                                       36