Document:

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EXHIBIT 10.8

                     PERFORMANCE RESTRICTED STOCK AGREEMENT

PERFORMANCE RESTRICTED STOCK AGREEMENT made as of the 28th day of January, 2003,
between RPC, Inc., a Delaware corporation (hereinafter called the "Company"),
and ((Employee Name)), an employee of the Company or one or more of its
subsidiaries (hereinafter called the "Employee").

WHEREAS, the Company desires to grant to the Employee, as an incentive for
Employee to promote the interests of the Company and its subsidiaries, the right
to receive shares of its Common Stock, par value $0.10 per share (hereinafter
called the "Common Stock"), subject to certain performance and continued
employment vesting criteria, pursuant to the terms and provisions of the
Company's 1994 Employee Stock Incentive Plan (hereinafter called the "Plan"), as
hereinafter provided.

NOW, THEREFORE, in consideration of the mutual covenants hereinafter set forth
and Employee's employment by the Company, the parties hereto agree as follows:

         THE PLAN. This Agreement is made pursuant to and in accordance with the
terms and provisions of the Plan. Anything in this Agreement to the contrary
notwithstanding, the terms and provisions of the Plan, all of which are hereby
incorporated herein by reference, shall be controlling in the event of any
inconsistency herewith.

       1.     ADMINISTRATION. Unless administration of the Plan is assumed by
              the Board of Directors of the Company, the Plan shall be
              administered by a committee of the Board of Directors of the
              Company, hereinafter referred to as the "Committee". The Committee
              is authorized and empowered to administer and interpret the Plan
              and this Agreement. Any interpretations of this Agreement or of
              the Plan made by the Committee shall be final and binding upon the
              parties hereto.

       2.     GRANT OF PERFORMANCE RESTRICTED STOCK. Effective as of January 28,
              2003 (the "Grant Date"), the Company hereby irrevocably grants to
              the Employee the right to receive the following five grants of
              shares of Common Stock, subject to satisfaction of the vesting
              requirements and the terms and conditions hereinafter set forth
              (such shares of Common Stock being hereinafter referred to in the
              aggregate as the "Performance Restricted Stock"):

<TABLE>
<CAPTION>

                            # OF       AVERAGE STOCK                NORMAL
                GRANT      SHARES      PRICE CONDITION           AWARD DATE
                -----      ------      ---------------           ----------
               <S>         <C>         <C>                   <C>
                  1                        $  10.91          January 28, 2004 *
                  2                           12.55          January 28, 2005 *
                  3                           14.43          January 28, 2006 *
</TABLE>

<PAGE>

<TABLE>
               <S>         <C>         <C>                   <C>
                  4                           16.60          January 28, 2007 *
                  5                           19.09          January 28, 2008 *
       Total Shares
</TABLE>

                                                o   (Refer to Paragraph 3 Below)

       3.     STOCK PERFORMANCE. No Performance Restricted Stock will be issued
              pursuant to any of the aforementioned grants unless and until the
              performance criteria set forth below in this Section 3 with
              respect to such grant have been satisfied:

                  (a) With respect to the first grant, the Average Closing Price
                  (defined to be the average closing price of the Common Stock
                  on the New York Stock Exchange for 10 consecutive trading days
                  occurring from and after the Grant Date) must equal or exceed
                  the Average Stock Price Condition for such grant (as disclosed
                  in the table in Section 2 above) on or before January 28,
                  2004.

                  (b) With respect to grants 2, 3 and 4, the Average Closing
                  Price must equal or exceed the Average Stock Price Condition
                  for such grant at some point within the twelve month period
                  beginning on the earlier to occur of (i) the Normal Award Date
                  for such grant (as disclosed in the table in Section 2 above),
                  or (ii) the date that the Average Closing Price first equaled
                  or exceeded the Average Stock Price Condition with respect to
                  the next previous grant.

                  (c) With respect to grant 5, the Average Closing Price must
                  equal or exceed the Average Stock Price Condition for such
                  grant on or before January 28, 2008.

              Subject to the provisions hereof and of the Plan, as soon as
              practicable after the performance conditions set forth above have
              been satisfied with respect to any grant the Performance
              Restricted Stock pertaining to such grant shall be issued in the
              name of Employee and held in escrow by the Company in accordance
              with Section 6 hereof. The date on which the Company becomes
              obligated to issue shares of Performance Restricted Stock with
              respect to any grant hereunder pursuant to the terms of this
              Section 3 is hereinafter referred to as the "Obligation Date" with
              respect to such Performance Restricted Stock. Should the
              Employee's employment with the Company terminate for any reason
              prior to the Obligation Date of any Performance Restricted Stock
              that is the subject of this Agreement, such Performance Restricted
              Stock shall not be issued and all rights hereunder with respect to
              such Performance Restricted Stock shall be forfeited.

              With respect to each grant, if the Average Closing Price does not
              equal or exceed the Average Stock Price Condition for such grant
              within the required time period, the shares of Performance
              Restricted Stock to which the grant pertains shall not be issued;
              provided, however, that if the Average Closing Price equals or
              exceeds the Average Stock Price Condition with respect to

<PAGE>

              grant 5 at any time on or before January 28, 2008, all shares of
              Performance Restricted Stock pertaining to all five grants made
              pursuant to this Agreement shall be issued in accordance with the
              provisions of the foregoing paragraph hereof. If the Average
              Closing Price does not equal or exceed the Average Stock Price
              Condition with respect to grant 5 at any time on or before January
              28, 2008, all shares of Performance Restricted Stock pertaining to
              grants made pursuant to this Agreement which have not previously
              been issued shall be forfeited by Employee.

       4.     SERVICE/EMPLOYMENT. Once issued in accordance with Section 3
              above, each Performance Restricted Stock award shall vest upon
              that date which is the earlier of (a) the fifth (5th) anniversary
              of the Obligation Date applicable to such award, or (b) the date
              Employee reaches age 65, but only if, through such date, Employee
              shall have been in the continuous employ of the Company or a
              subsidiary thereof, in a position of equivalent or greater
              responsibility as on the Grant Date. If Employee's employment with
              the Company terminates at any time prior to the vesting pursuant
              to this Section 4 of any Performance Restricted Stock issued in
              his or her name, he or she shall forfeit all such unvested
              Performance Restricted Stock, unless the Employee's employment
              terminates due to his or her death or permanent disability (as
              determined by the Committee in accordance with the Plan), in which
              case any such unvested Performance Restricted Stock shall vest
              immediately. Any Performance Restricted Stock that is issued
              pursuant to Section 3 after age 65, but before Retirement (as
              defined in the Plan), shall vest immediately upon the issuance
              thereof. The transfer of employment by Employee between the
              Company and a subsidiary thereof shall not be deemed a termination
              of employment under the Plan or this Agreement.

       5.     ESCROW; DIVIDENDS AND VOTING RIGHTS. Prior to the completion of
              the vesting period referenced in Section 4 above, all issued
              (earned) shares of Performance Restricted Stock shall be held in
              escrow by the Company for the benefit of Employee. During such
              period, prior to any forfeiture of the shares, Employee shall
              receive all cash dividends declared with respect to the shares and
              shall have the right to exercise all voting rights with respect to
              the shares. At the discretion of the Company, any share
              certificates so held in escrow shall be inscribed with a legend
              referencing the transfer restrictions contained in this Agreement
              and any other applicable transfer restrictions. Any share
              certificates issued pursuant to a stock split or as dividends with
              respect to the Performance Restricted Stock held in escrow shall
              also be held in escrow on the same terms as the Performance
              Restricted Stock and shall be released at the same time as, and
              subject to the same risk of forfeiture as, the shares with respect
              to which they were issued. Any issued Performance Restricted Stock
              which the Employee does not forfeit pursuant to Section 4 above
              shall be transferred to the Employee free of any forfeiture
              conditions under the Plan or this Agreement as soon as practicable
              after the service vesting condition under Section 4 above has been
              satisfied or no longer applies; provided, however, that if the
              Committee at any time before such transfer reasonably determines
              that the Employee might have violated any applicable criminal law,
              the Committee shall have the right to cause all of Employee's
              Performance

<PAGE>

              Restricted Stock then held in escrow to be forfeited, without
              regard to whether (i) Employee has satisfied the service vesting
              condition set forth in Section 4 before the date the Committee
              makes such determination, or (ii) Employee's employment is (or
              might have been) terminated as a result of such conduct.

       6.     NON-TRANSFERABILITY. No rights granted pursuant to this Agreement
              shall be assignable or transferable, and such rights shall not be
              subject to execution, attachment or other process until that date
              on which the Performance Restricted Stock vests pursuant to
              Section 4. The Company may, at its discretion, place a legend to
              such effect on the certificates representing the shares of
              Performance Restricted Stock and issue appropriate stop transfer
              instructions to the Company's transfer agent.

       7.     CHANGE IN CAPITALIZATION. In general, if the Company is merged
              into or consolidated with another corporation under circumstances
              in which the Company is not the surviving corporation, or if the
              Company is liquidated, or sells or otherwise disposes of
              substantially all of its assets to another corporation (any such
              merger, consolidation, etc. being hereinafter referred to as a
              "Non-Acquiring Transaction") while the Performance Restricted
              Stock is outstanding under the Plan, after the effective date of a
              Non-Acquiring Transaction Employee shall be entitled to receive
              such stock or other securities as the holders of the same class of
              stock as the Performance Restricted Stock shall be entitled to
              receive in such Non-Acquiring Transaction based upon the agreed
              upon conversion ratio or per share distribution. However, in the
              discretion of the Board of Directors, any vesting restrictions on
              the Performance Restricted Stock may continue in full force and
              effect, subject to whatever adjustments the Board of Directors
              deems appropriate. To the extent that the foregoing adjustments
              relate to stock or securities of the Company, such adjustments
              shall be made by the Board of Directors, whose determination in
              that respect shall be final, binding and conclusive. The Committee
              need not treat other holders of Performance Restricted Stock in
              the same manner as Employee is treated.

       8.     REQUIREMENT OF LAW. If any law, regulation of the Securities and
              Exchange Commission, or any regulation of any other commission or
              agency having jurisdiction shall require the Company or the
              Employee to take any action prior to the issuance or release from
              escrow of any shares of Performance Restricted Stock, then the
              date upon which the Company shall deliver or cause to be issued or
              released from escrow the certificate or certificates for such
              shares of Performance Restricted Stock shall be postponed until
              full compliance has been made with all such requirements or law or
              regulations. Further, at or before the time of issuance of any
              shares of Performance Restricted Stock, the Employee shall, if
              requested by the Company, deliver to the Company his/her written
              statement that he/she intends to hold such shares for investment
              and not with a view to resale or other distribution thereof to the
              public. Further, in the event the Company shall determine that, in
              compliance with the Securities Act of 1933, as amended, or other
              applicable statute or regulation, it is necessary to register any
              of the shares of Performance Restricted Stock, or to qualify any
              such shares for

<PAGE>

              exemption from any of the requirements of the Securities Act of
              1933, as amended, or other applicable statute or regulations, then
              the Company shall take such action at its own expense, but not
              until such action has been completed shall the shares be issued in
              the name of the Employee.

       9.     WITHHOLDING. Employee shall have the right (absent any contrary
              action by the Committee and subject to satisfying the
              requirements, if any, of Rule 16b-3 promulgated pursuant to
              Section 16 of the Securities Exchange Act of 1934, as amended) to
              elect that the minimum tax withholding requirements applicable to
              the receipt of any award pursuant to this Agreement be satisfied
              through a reduction in the number of shares of Performance
              Restricted Stock issued or transferred to him or her, and the
              Committee shall have the right to reduce the number of shares of
              Performance Restricted Stock issued or transferred to the Employee
              in order to satisfy such minimum applicable tax withholding
              requirements.

      10.     NO EFFECT ON EMPLOYMENT. Nothing herein shall be construed to
              grant Employee the right to continued employment with the Company
              or to limit or restrict the right of the Company or any of its
              subsidiaries to terminate an Employee's employment at any time,
              with or without cause, or to increase or decrease the compensation
              of the Employee from the rate in existence at the date hereof.

       11.    GOVERNING LAW. This Agreement and all awards made and actions
              taken hereunder shall be governed by and construed in accordance
              with the Delaware General Corporation Law, to the extent
              applicable, and in accordance with the laws of the State of
              Georgia in all other respects.

         IN WITNESS WHEREOF, the Company has caused this Performance Restricted
Stock Agreement to be duly executed by an authorized officer, and the Employee
has hereunto set his/her hand, all as of the day and year first above written.

                                      RPC, Inc.

                                      By:
                                         ------------------------------------
                                      Its:  President

                                      ---------------------------------------
                                      Employee NameQuickLinks
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Exhibit 4-1    
    

        $1,500,000,000

CREDIT AGREEMENT

dated as of November 22, 2002

among

EXELON CORPORATION,

COMMONWEALTH EDISON COMPANY,

PECO ENERGY COMPANY

and

EXELON GENERATION COMPANY, LLC

  as Borrowers

VARIOUS FINANCIAL INSTITUTIONS

  as Lenders

BANK ONE, NA

  as Administrative Agent

ABN AMRO BANK, N.V.

and

DRESDNER BANK AG, NEW YORK AND GRAND CAYMAN BRANCHES

 as Co-Documentation Agents

and

CITIBANK, N.A.

and

WACHOVIA BANK, NATIONAL ASSOCIATION

  as Co-Syndication Agents

BANC ONE CAPITAL MARKETS, INC.

  Lead Arranger and Sole Book Runner

CREDIT AGREEMENT

dated as of November 22, 2002 

        EXELON
CORPORATION, COMMONWEALTH EDISON COMPANY, PECO ENERGY COMPANY, EXELON GENERATION COMPANY, LLC, the banks listed on the signature pages hereof, BANK ONE, NA, as Administrative
Agent, ABN AMRO BANK, N.V. and DRESDNER BANK AG, NEW YORK AND GRAND CAYMAN BRANCHES, as Co-Documentation Agents, and CITIBANK, N.A. and WACHOVIA BANK, NATIONAL ASSOCIATION, as
Co-Syndication Agents, hereby agree as follows: 

ARTICLE I

DEFINITIONS AND ACCOUNTING TERMS 

        SECTION
1.01    Certain Defined Terms.    As used in this Agreement, each of the following terms shall have the
meaning set forth below (each such meaning to be equally applicable to both the singular and plural forms of the term defined): 

        "Adjusted Funds From Operations" means, for any Borrower for any period, such Borrower's Net Cash Flows From Operating Activities for such
period minus such Borrower's Transitional Funding Instrument Revenue for such period plus such
Borrower's Net Interest Expense for such period minus, to the extent applicable, the portion (but, if such Borrower or any of its Subsidiaries (other
than Sithe Holdings and its Subsidiaries) has made any loans or advances to, or investments in, Sithe Holdings or any of its Subsidiaries during such period, not less than zero) of such Borrower's Net
Cash Flows From Operating Activities attributable to Sithe Holdings and its Subsidiaries. 

        "Administrative Agent" means Bank One in its capacity as administrative agent for the Lenders pursuant to  Article VII, and not in its individual capacity as a
Lender, and any successor Administrative Agent appointed pursuant to  Section 7.06. 

        "Advance" means an advance by a Lender to a Borrower hereunder. An Advance may be a Base Rate Advance or a Eurodollar Rate Advance, each
of which shall be a "Type" of Advance. 

        "Affiliate" means, as to any Person, any other Person that, directly or indirectly, controls, is controlled by or is under common control
with such Person or is a director or officer of such Person. 

        "Agents" means the Administrative Agent, the Co-Documentation Agents and the Co-Syndication Agents; and
"Agent" means any one of the foregoing. 

        "Applicable Lending Office" means, with respect to each Lender, such Lender's Domestic Lending Office in the case of a Base Rate Advance
and such Lender's Eurodollar Lending Office in the case of a Eurodollar Rate Advance. 

        "Applicable Margin"—see Schedule II. 

        "Assignment and Acceptance" means an assignment and acceptance entered into by a Lender and an Eligible Assignee, and accepted by the
Administrative Agent, in substantially the form of Exhibit C. 

        "Bank One" means Bank One, NA, a national banking association with its main office in Chicago, Illinois. 

        "Base Rate" means, for any period, a fluctuating interest rate per annum which rate per annum shall at all times be equal to the higher
of: 

        (a)  the
Prime Rate; and 

        (b)  the
sum of 0.5% per annum plus the Federal Funds Rate in effect from time to time. 

        "Base Rate Advance" means an Advance that bears interest as provided in  Section 2.06(a). 

 

        "Borrowers" means Exelon, ComEd, PECO and Genco; and "Borrower" means any one of the
foregoing. 

        "Borrowing" means a group of Advances to the same Borrower of the same Type made, continued or converted on the same day by the Lenders
ratably according to their Pro Rata Shares and, in the case of a Borrowing of Eurodollar Rate Advances, having the same Interest Period. 

        "Business Day" means a day on which banks are not required or authorized to close in Philadelphia, Pennsylvania, Chicago, Illinois or New
York, New York, and, if the applicable Business Day relates to any Eurodollar Rate Advances, on which dealings are carried on in the London interbank market. 

        "Closing Date" shall mean the date on which all conditions precedent to the initial Credit Extension have been satisfied. 

        "Code" means the Internal Revenue Code of 1986, and the regulations promulgated thereunder, in each case as amended, reformed or otherwise
modified from time to time. 

        "Co-Documentation Agent" means each of ABN AMRO Bank, N.V. and Dresdner Bank AG, New York and Grand Cayman Branches in its
capacity as a co-documentation agent hereunder. 

        "Commitment" means, for any Lender, such Lender's commitment to make Advances and participate in Facility LCs for the account of each
Borrower hereunder. 

        "Commitment Amount" means, for any Lender at any time, the amount set forth opposite such Lender's name on the signature pages hereof or,
if such Lender has entered into any Assignment and Acceptance, set forth for such Lender in the Register maintained by the Administrative Agent pursuant to  Section 8.07(c), as such amount may be
reduced pursuant to Section 2.04. 

        "Commitment Termination Date" means, with respect to any Borrower, the earlier of (i) November 21, 2003 or such later date
to which the scheduled Commitment Termination Date for such Borrower may be extended pursuant to Section 2.17 (or, if any such date is not a
Business Day, the next preceding Business Day) or (ii) the date of termination in whole of the Commitments to such Borrower pursuant to  Section 2.04 or 6.01. 

        "ComEd" means Commonwealth Edison Company, an Illinois corporation, or any Eligible Successor thereof. 

        "ComEd Sublimit" means $200,000,000, subject to adjustment as provided in  Section 2.04(c). 

        "ComEd Mortgage" means the Mortgage, dated July 1, 1923, as amended and supplemented by supplemental indentures, including the
Supplemental Indenture, dated August 1, 1944, from ComEd to Harris Trust and Savings Bank and D.G. Donovan, as trustees; provided that no effect
shall be given to any amendment, supplement or refinancing after the date of this Agreement that would broaden the definition of "permitted liens" as defined in the ComEd Mortgage as constituted on
the date of this Agreement. 

        "Controlled Group" means all members of a controlled group of corporations and all trades or businesses (whether or not incorporated)
under common control that, together with Exelon or any Subsidiary, are treated as a single employer under Section 414(b) or 414(c) of the Code. 

        "Co-Syndication Agent" means each of Citibank, N.A. and Wachovia Bank, National Association in its capacity as a
co-syndication agent hereunder. 

        "Credit Extension" means the making of an Advance or the issuance or modification of a Facility LC hereunder. 

2

 

        "Debt" means (i) indebtedness for borrowed money, (ii) obligations evidenced by bonds, debentures, notes or other similar
instruments, (iii) obligations to pay the deferred purchase price of property or services (other than trade payables incurred in the ordinary course of business), (iv) obligations as
lessee under leases that shall have been or are required to be, in accordance with GAAP, recorded as capital leases, (v) obligations (contingent or otherwise) under reimbursement or similar
agreements with respect to the issuance of letters of credit (other than obligations in respect of documentary letters of credit opened to provide for the payment of goods or services purchased in the
ordinary course of business) and (vi) obligations under direct or indirect guaranties in respect of, and obligations (contingent or otherwise) to purchase or otherwise acquire, or otherwise to
assure a creditor against loss in respect of, indebtedness or obligations of others of the kinds referred to in clauses (i) through  (v) above.

        "Distributions on Preferred Securities" means, for any period, (a) in the case of Exelon, "Distributions on Preferred Securities of
Subsidiaries" as shown on a consolidated statement of income of Exelon for such period; (b) in the case of ComEd, "Distributions on Company-Obligated Mandatorily Redeemable Preferred Securities
of Subsidiary Trusts holding solely the Company's Subordinated Debt Securities" as shown on a consolidated statement of income of ComEd for such period; and (c) in the case of PECO,
"Distributions on Company-Obligated Mandatorily Redeemable Preferred Securities of a Partnership, which holds solely Subordinated Debentures of the Company" as shown on a consolidated statement of
income of PECO for such period. 

        "Domestic Lending Office" means, with respect to any Lender, the office of such Lender specified as its "Domestic Lending Office" opposite
its name on Schedule I hereto or in the Assignment and Acceptance pursuant to which it became a Lender, or such other office of such Lender as
such Lender may from time to time specify to the Borrowers and the Administrative Agent. 

        "Eligible Assignee" means (i) a commercial bank organized under the laws of the United States, or any State thereof; (ii) a
commercial bank organized under the laws of any other country that is a member of the OECD or has concluded special lending arrangements with the International Monetary Fund associated with its
General Arrangements to Borrow, or a political subdivision of any such country, provided that such bank is acting through a branch or agency located in
the United States; (iii) a finance company, insurance company or other financial institution or fund (whether a corporation, partnership or other entity) engaged generally in making, purchasing
or otherwise investing in commercial loans in the ordinary course of its business; or (iv) the central bank of any country that is a member of the OECD;  provided that, unless otherwise agreed by
Exelon and the Administrative Agent in their sole discretion, (A) any Person described in  clause (i), (ii) or (iii)
 above
shall also (x) have outstanding unsecured long-term debt that is rated BBB- or better by S&P and Baa3 or better by Moody's (or an equivalent rating by another nationally
recognized credit rating agency of similar standing if either such corporation is no longer in the business of rating unsecured indebtedness of entities engaged in such businesses) and (y) have
combined capital and surplus (as established in its most recent report of condition to its primary regulator) of not less than $100,000,000 (or its equivalent in foreign currency), and (B) any
Person described in clause (ii), (iii) or  (iv) above shall, on the date on which it is to
become a Lender hereunder, be entitled to receive payments hereunder without deduction or
withholding of any United States Federal income taxes (as contemplated by Section 2.14(e)). 

        "Eligible Successor" means a Person which (i) is a corporation, limited liability company or business trust duly incorporated or
organized, validly existing and in good standing under the laws of one of the states of the United States or the District of Columbia, (ii) as a result of a contemplated acquisition,
consolidation or merger, will succeed to all or substantially all of the consolidated business and assets of a Borrower and its Subsidiaries, (iii) upon giving effect to such contemplated
acquisition, consolidation or merger, will have all or substantially all of its consolidated business and assets 

3

 

conducted and located in the United States and (iv) is acceptable to the Majority Lenders as a credit matter. 

        "ERISA" means the Employee Retirement Income Security Act of 1974, as amended from time to time, and the regulations promulgated and
rulings issued thereunder, each as amended and modified from time to time. 

        "Eurocurrency Liabilities" has the meaning assigned to that term in Regulation D of the Board of Governors of the Federal Reserve
System, as in effect from time to time. 

        "Eurodollar Lending Office" means, with respect to any Lender, the office of such Lender specified as its "Eurodollar Lending Office"
opposite its name on Schedule I hereto or in the Assignment and Acceptance pursuant to which it became a Lender (or, if no such office is
specified, its Domestic Lending Office), or such other office of such Lender as such Lender may from time to time specify to the Borrowers and the Administrative Agent. 

        "Eurodollar Rate" means, for each Interest Period for each Eurodollar Rate Advance made as part of a Borrowing, an interest rate per annum
equal to the average (rounded upward to the nearest whole multiple of 1/16 of 1% per annum, if such average is not such a multiple) of the rates per annum at which deposits in U.S.
dollars are offered by the principal office of each of the Reference Banks in London, England, to prime banks in the London interbank market at 11:00 A.M. (London time) two Business Days before
the first day of such Interest Period in an amount substantially equal to such Reference Bank's Eurodollar Rate Advance made as part of such Borrowing and for a period equal to such Interest Period.
The Eurodollar Rate for each Interest Period for each Eurodollar Rate Advance made as part of a Borrowing shall be determined by the Administrative Agent on the basis of applicable rates furnished to
and received by the Administrative Agent from the Reference Banks two Business Days before the first day of such Interest Period, subject,  however, to the
provisions of Section 2.08. 

        "Eurodollar Rate Advance" means any Advance that bears interest as provided in  Section 2.06(b). 

        "Eurodollar Rate Reserve Percentage" of any Lender for any Interest Period means the reserve percentage applicable during such Interest
Period (or if more than one such percentage shall be so applicable, the daily average of such percentages for those days in such Interest Period during which any such percentage shall be so
applicable) under regulations issued from time to time by the Board of Governors of the Federal Reserve System (or any successor) for determining the maximum reserve requirement (including any
emergency, supplemental or other marginal reserve requirement) for such Lender with respect to liabilities or assets consisting of or including Eurocurrency Liabilities having a term equal to such
Interest Period. 

        "Event of Default"—see Section 6.01. 

        "Exchange Act" means the Securities Exchange Act of 1934, as amended and modified from time to time. 

        "Exelon" means Exelon Corporation, a Pennsylvania corporation, or any Eligible Successor thereof. 

        "Exelon Sublimit" means $900,000,000, subject to adjustment as provided in  Section 2.04(c). 

        "Existing Agreement" means the 364-Day Credit Agreement dated as of December 12, 2001 among the Borrowers, various
financial institutions and Bank One, as Administrative Agent, as amended prior to the Closing Date. 

        "Facility Fee Rate"—see Schedule II. 

        "Facility LC"—see Section 2.16.1. 

        "Facility LC Application"—see Section 2.16.3. 

4

 

        "Federal Funds Rate" means, for any period, a fluctuating interest rate per annum equal for each day during such period to the weighted
average of the rates on overnight Federal funds transactions with members of the Federal Reserve System arranged by Federal funds brokers, as published for such day (or, if such day is not a Business
Day, for the next preceding Business Day) by the Federal Reserve Bank of New York, or, if such rate is not so published for any day which is a Business Day, the average of the quotations for such day
on such transactions received by the Administrative Agent from three Federal funds brokers of recognized standing selected by it. 

        "Final Termination Date" means, with respect to any Borrower, the earlier of (i) the date on or after the Maturity Date for such
Borrower on which all of such Borrower's obligations hereunder have been paid in full and all Facility LC's issued for the account of such Borrower have expired or been terminated and (ii) the
date on which all of such Borrower's obligations hereunder have become due and payable (pursuant to Section 6.01 or otherwise). 

        "GAAP"—see Section 1.03. 

        "Genco" means Exelon Generation Company, LLC, a Pennsylvania limited liability company, or any Eligible Successor thereof. 

        "Genco Sublimit" means zero, subject to adjustment as provided in Section 2.04(c). 

        "Granting Bank"—see Section 8.07(h). 

        "Interest Coverage Ratio" means, with respect to any Borrower for any period of four consecutive fiscal quarters, the ratio of such
Borrower's Adjusted Funds From Operations for such period to such Borrower's Net Interest Expense for such period. 

        "Interest Expense" means, for any Borrower for any period, "interest expense" as shown on a consolidated statement of income of such
Borrower for such period prepared in accordance with GAAP. 

        "Interest Period" means, for each Eurodollar Rate Advance, the period commencing on the date of such Eurodollar Rate Advance is made or is
converted from a Base Rate Advance and ending on the last day of the period selected by the applicable Borrower pursuant to the provisions below and, thereafter, each subsequent period commencing on
the last day of the immediately preceding Interest Period and ending on the last day of the period selected by such Borrower pursuant to the provisions below. The duration of each such Interest Period
shall be 1, 2, 3 or 6 months, as the applicable Borrower may select in accordance with Section 2.02 or  2.09; provided that: 

	(i)
	no
Borrower may select any Interest Period that ends after the scheduled Maturity Date for such Borrower;

	(ii)
	Interest
Periods commencing on the same date for Advances made as part of the same Borrowing shall be of the same duration;

	(iii)
	whenever
the last day of any Interest Period would otherwise occur on a day other than a Business Day, the last day of such Interest Period shall be
extended to occur on the next succeeding Business Day, unless such extension would cause the last day of such Interest Period to occur in the next following calendar month, in which case the last day
of such Interest Period shall occur on the next preceding Business Day; and

	(iv)
	if
there is no day in the appropriate calendar month at the end of such Interest Period numerically corresponding to the first day of such Interest
Period, then such Interest Period shall end on the last Business Day of such appropriate calendar month. 

        "LC Fee Rate"—see Schedule II. 

        "LC Issuer" means Bank One in its capacity as issuer of Facility LCs hereunder. 

5

 

        "LC Obligations" means, with respect to any Borrower at any time, the sum, without duplication, of (i) the aggregate undrawn stated
amount under all Facility LCs issued for the account of such Borrower outstanding at such time plus (ii) the aggregate unpaid amount at such time of all Reimbursement Obligations of such
Borrower. 

        "LC Payment Date"—see Section 2.16.5. 

        "Lead Arranger" means Banc One Capital Markets in its capacity as Lead Arranger and Sole Book Runner. 

        "Lenders" means each of the financial institutions listed on the signature pages hereof and each Eligible Assignee that shall become a
party hereto pursuant to Section 8.07. 

        "Letter of Credit Sublimit" means $150,000,000. 

        "Lien" means any lien (statutory or other), mortgage, pledge, security interest or other charge or encumbrance, or any other type of
preferential arrangement (including the interest of a vendor or lessor under any conditional sale, capitalized lease or other title retention agreement). 

        "Majority Lenders" means Lenders having Pro Rata Shares of more than 50% (provided that,
for purposes of this definition, no Borrower nor any Affiliate of a Borrower, if a Lender, shall be included in calculating the amount of any Lender's Pro Rata Share or the amount of the Commitment
Amounts or Outstanding Credit Extensions, as applicable, required to constitute more than 50% of the Pro Rata Shares). 

        "Material Adverse Change" and "Material Adverse Effect" each means, relative to any
occurrence, fact or circumstances of whatsoever nature (including any determination in any litigation, arbitration or governmental investigation or proceeding) with respect to any Borrower,
(i) any materially adverse change in, or materially adverse effect on, the financial condition, operations, assets or business of such Borrower and its consolidated Subsidiaries, taken as a
whole, or (ii) any materially adverse effect on the validity or enforceability against such Borrower of this Agreement or any applicable Note. 

        "Material Subsidiary" means, with respect to Exelon, each of ComEd, PECO and Genco and any holding company for any of the foregoing. 

        "Maturity Date" means (a) with respect to Exelon, ComEd and Genco, the date which is one year after the Commitment Termination Date
for such Borrower (or, if such date is not a Business Day, the next preceding Business Day); and (b) with respect to PECO, the Commitment Termination Date for PECO;  provided that, if PECO has
delivered to the Administrative Agent evidence, reasonably satisfactory to the Administrative Agent, that the Pennsylvania
Utility Commission has approved the maintenance of Advances to, and Facility LCs for the account of, PECO hereunder during the period from the Commitment Termination Date for PECO to the date which is
one year after such Commitment Termination Date, then PECO may, by notice to the Administrative Agent (which shall promptly advise each Lender of its receipt of such notice), elect to extend the
"Maturity Date" for PECO to the date which is one year after the Commitment Termination Date for PECO (or, if such date is not a Business Day, the next preceding Business Day). 

        "Modify" and "Modification"—see  Section 2.16.1. 

        "Moody's" means Moody's Investors Service, Inc. 

        "Moody's Rating" means, at any time for any Borrower, the rating issued by Moody's and then in effect with respect to such Borrower's
senior unsecured long-term public debt securities without third-party credit enhancement (it being understood that if such Borrower does not have any outstanding debt securities of the
type described above but has an indicative rating from Moody's for debt securities of such type, then such indicative rating shall be used for determining the "Moody's Rating"). 

6

 

        "Multiemployer Plan" means a Plan maintained pursuant to a collective bargaining agreement or any other arrangement to which Exelon or any
other member of the Controlled Group is a party to which more than one employer is obligated to make contributions. 

        "Net Cash Flows From Operating Activities" means, for any Borrower for any period, "Net Cash Flows provided by Operating Activities" as
shown on a consolidated statement of cash flows of such Borrower for such period prepared in accordance with GAAP, excluding any "working capital
changes" (as shown on such statement of cash flows) taken into account in determining such Net Cash Flows provided by Operating Activities. 

        "Net Interest Expense" means, for any Borrower for any period, the total of (a) such Borrower's Interest Expense for such period  minus (b) such Borrower's
Distributions on Preferred Securities for such period minus
(c) such Borrower's Transitional Funding Instrument Interest for such period minus (d) in the case of Exelon and Genco, interest on Sithe Project Debt for such period. 

        "Nonrecourse Indebtedness" means any Debt that finances the acquisition, development, ownership or operation of an asset in respect of
which the Person to which such Debt is owed has no recourse whatsoever to any Borrower or any of their respective Affiliates other than: 

	(i)
	recourse
to the named obligor with respect to such Debt (the "Debtor") for amounts limited to the cash
flow or net cash flow (other than historic cash flow) from the asset;

	(ii)
	recourse
to the Debtor for the purpose only of enabling amounts to be claimed in respect of such Debt in an enforcement of any security interest or lien
given by the Debtor over the asset or the income, cash flow or other proceeds deriving from the asset (or given by any shareholder or the like in the Debtor over its shares or like interest in the
capital of the Debtor) to secure the Debt, but only if the extent of the recourse to the Debtor is limited solely to the amount of any recoveries made on any such enforcement; and 

        recourse
to the Debtor generally or indirectly to any Affiliate of the Debtor, under any form of assurance, undertaking or support, which recourse is limited to a claim for damages
(other than liquidated damages and damages required to be calculated in a specified way) for a breach of an obligation (other than a payment obligation or an obligation to comply or to procure
compliance by another with any financial ratios or other tests of financial condition) by the Person against which such recourse is available. 

        "Note" means a promissory note of a Borrower payable to the order of a Lender, in substantially the form of  Exhibit A, evidencing the aggregate indebtedness of such
Borrower to such Lender resulting from the Advances made by such Lender to such
Borrower. 

        "Notice of Borrowing"—see Section 2.02(a). 

        "OECD" means the Organization for Economic Cooperation and Development. 

        "Outstanding Credit Extensions" means, with respect to any Borrower, the sum of the aggregate principal amount of all outstanding Advances
to such Borrower plus all LC Obligations of such Borrower. 

        "PBGC" means the Pension Benefit Guaranty Corporation and any entity succeeding to any or all of its functions under ERISA. 

        "PECO" means PECO Energy Company, a Pennsylvania corporation, or any Eligible Successor thereof. 

        "PECO Mortgage" means the First and Refunding Mortgage, dated as of May 1, 1923, between The Counties Gas & Electric Company
(to which PECO is successor) and Fidelity Trust Company, Trustee (to which First Union National Bank is successor), as amended, supplemented or refinanced 

7

 

from time to time, provided that no effect shall be given to any amendment, supplement or refinancing after the date of this Agreement that would
broaden the definition of "excepted encumbrances" as defined in the PECO Mortgage as constituted on the date of this Agreement. 

        "PECO Sublimit" means $400,000,000, subject to adjustment as provided in  Section 2.04(c). 

        "Person" means an individual, partnership, corporation (including a business trust), joint stock company, trust, unincorporated
association, joint venture, limited liability company or other entity, or a government or any political subdivision or agency thereof. 

        "Plan" means an employee pension benefit plan that is covered by Title IV of ERISA or subject to the minimum funding standards under
Section 412 of the Code as to which Exelon or any other member of the Controlled Group may have any liability. 

        "Prime Rate" means a rate per annum equal to the prime rate of interest announced by Bank One or by its parent, BANK ONE CORPORATION
(which is not necessarily the lowest rate charged to any customer), changing when and as said prime rate changes. 

        "Principal Subsidiary" means, with respect to a Borrower, (i) each Utility Subsidiary of such Borrower (other than Commonwealth
Edison Company of Indiana, Inc., so long as it does not qualify as a Principal Subsidiary under the following clause (ii)) and
(ii) each other Subsidiary of such Borrower the assets of which exceeded $150,000,000 in book value at any time during the preceding 24-month period. 

        "Pro Rata Share" means, with respect to a Lender, a portion equal to a fraction the numerator of which is such Lender's Commitment Amount
(plus, after the Commitments have terminated with respect to any Borrower, the principal amount of such Lender's outstanding Advances to such Borrower plus the amount of such Lender's participation in
all of such Borrower's LC Obligations) and the denominator of which is the aggregate amount of the Commitment Amounts (plus, after the Commitments have terminated with respect to any Borrower, the
principal amount of all outstanding Advances to such Borrower plus all LC Obligations of such Borrower). 

        "Reference Banks" means Bank One, Citibank, N.A. and Wachovia Bank, National Association. 

        "Register"—see Section 8.07(c). 

        "Reimbursement Obligations" means, with respect to any Borrower at any time, the aggregate of all obligations of such Borrower then
outstanding under Section 2.16 to reimburse the LC Issuer for amounts paid by the LC Issuer in respect of any one or more drawings under Facility
LCs. 

        "Reportable Event" means a reportable event as defined in Section 4043 of ERISA and regulations issued under such section with
respect to a Plan, excluding, however, such events as to which the PBGC by regulation waived the requirement of Section 4043(a) of ERISA that it be notified within 30 days of the
occurrence of such event, provided that a failure to meet the minimum funding standard of Section 412 of the Code and Section 302 of ERISA
shall be a Reportable Event regardless of the issuance of any such waivers in accordance with either Section 4043(a) of ERISA or Section 412(d) of the Code. 

        "S&P" means Standard & Poor's Ratings Services, a division of The McGraw-Hill Companies, Inc. 

        "S&P Rating" means, at any time for any Borrower, the rating issued by S&P and then in effect with respect to such Borrower's senior
unsecured long-term public debt securities without third-party credit enhancement (it being understood that if such Borrower does not have any outstanding debt securities of the type
described above but has an indicative rating from S&P for debt securities of such type, then such indicative rating shall be used for determining the "S&P Rating"). 

8

 

        "Single Employer Plan" means a Plan maintained by Exelon or any other member of the Controlled Group for employees of Exelon or any other
member of the Controlled Group. 

        "Sithe Holdings" means Exelon New England Holdings LLC (formerly known as Sithe New England Holdings LLC). 

        "Sithe Project Debt" means Debt of Sithe Holdings and its Subsidiaries for which none of the Borrowers nor any of their Subsidiaries
(other than Sithe Holdings and its Subsidiaries) has any liability, contingent or otherwise. 

        "SPC"—see Section 8.07(h). 

        "Special Purpose Subsidiary" means a direct or indirect wholly owned corporate Subsidiary of ComEd or PECO, substantially all of the
assets of which are "intangible transition property" (as defined in Section 18-102 of the Illinois Public Utilities Law, as amended, or in 66 Pa. Cons. Stat. Ann. ss.2812(g) (West
Supp. 1997) or any successor provision of similar import), and proceeds thereof, formed solely for the purpose of holding such assets and issuing such Transitional Funding Instruments, and which
complies with the requirements customarily imposed on bankruptcy-remote corporations in receivables securitizations. 

        "Sublimit" means the Exelon Sublimit, the ComEd Sublimit, the PECO Sublimit or the Genco Sublimit. 

        "Subsidiary" means, with respect to any Person, any corporation or unincorporated entity of which more than 50% of the outstanding capital
stock (or comparable interest) having ordinary voting power (irrespective of whether or not at the time capital stock, or comparable interests, of any other class or classes of such corporation or
entity shall or might have voting power upon the occurrence of any contingency) is at the time directly or indirectly owned by such Person (whether directly or through one or more other Subsidiaries). 

        "Taxes"—see Section 2.14. 

        "Transitional Funding Instrument" means any instruments, pass-through certificates, notes, debentures, certificates of
participation, bonds, certificates of beneficial interest or other evidences of indebtedness
or instruments evidencing a beneficial interest which (i) in the case of ComEd (A) are issued pursuant to a "transitional funding order" (as such term is defined in
Section 18-102 of the Illinois Public Utilities Act, as amended) issued by the Illinois Commerce Commission at the request of an electric utility and (B) are secured by or
otherwise payable from non-bypassable cent per kilowatt hour charges authorized pursuant to such order to be applied and invoiced to customers of such utility and (ii) in the case
of PECO, are "transition bonds" (as defined in 66 Pa. Cons. Stat. Ann. ss.2812(g) (West Supp. 1997), or any successor provision of similar import), representing a securitization of "intangible
transition property" (as defined in the foregoing statute). The instrument funding charges so applied and invoiced must be deducted and stated separately from the other charges invoiced by such
utility against its customers. 

        "Transitional Funding Instrument Interest" means, for any Borrower for any period, the portion of such Borrower's Interest Expense for
such period which was payable in respect of Transitional Funding Instruments. 

        "Transitional Funding Instrument Revenue" means, for any Borrower for any period, the portion of such Borrower's consolidated revenue for
such period attributable to charges invoiced to customers in respect of Transitional Funding Instruments. 

        "Type"—see the definition of Advance. 

        "Unfunded Liabilities" means, (i) in the case of any Single Employer Plan, the amount (if any) by which the present value of all
vested nonforfeitable benefits under such Plan exceeds the fair market 

9

 

value of all Plan assets allocable to such benefits, all determined as of the then most recent evaluation date for such Plan, and (ii) in the case of any Multiemployer Plan, the withdrawal
liability that would be incurred by the Controlled Group if all members of the Controlled Group completely withdrew from such Multiemployer Plan. 

        "Unmatured Event of Default" means any event which (if it continues uncured) will, with lapse of time or notice or both, became an Event
of Default. 

        "Utility Subsidiary" means, with respect to a Borrower, each Subsidiary of such Borrower that is engaged principally in the generation,
transmission, or distribution of electricity or gas and is subject to rate regulation as a public utility by federal or state regulatory authorities. 

        "Utilization Fee Rate"—see Schedule II. 

        SECTION
1.02    Other Interpretive Provisions.    In this Agreement, (a) in the computation of periods of time
from a specified date to a later specified date, the word "from" means "from and including" and the words "to" and "until" each means "to but excluding"; (b) unless otherwise indicated, any
reference to an Article, Section, Exhibit or  Schedule means
an Article or Section hereof or an Exhibit or Schedule hereto; and (c) the term "including" means "including without limitation". 

        SECTION
1.03    Accounting Principles.    (a) As used in this Agreement, "GAAP" shall mean generally accepted
accounting principles in the United States, applied on a basis consistent with the principles used in preparing Exelon's audited consolidated financial statements as of December 31, 2001 and
for the fiscal year then ended. In this Agreement, except to the extent, if any, otherwise provided herein, all accounting and financial terms shall have the meanings ascribed to such terms by GAAP,
and all computations and determinations as to accounting and financial matters shall be made in accordance with GAAP. In the event that the financial statements generally prepared by any Borrower
apply accounting principles other than GAAP (including as a result of any event described in Section 1.03(b)), the compliance certificate
delivered pursuant to Section 5.01(b)(iv) accompanying such financial statements shall include information in reasonable detail
reconciling such financial statements to GAAP to the extent relevant to the calculations set forth in such compliance certificate. 

        (b)  If
at any time any change in GAAP would affect the computation of any financial ratio or requirement set forth herein and the applicable Borrower or the Majority Lenders
shall so request, the Administrative Agent, the Lenders and such Borrower shall negotiate in good faith to amend such ratio or requirement to preserve the original intent thereof in light of such
change in GAAP (subject to the approval of the Majority Lenders); provided that, until so amended, such ratio or requirement shall continue to be
computed in accordance with GAAP prior to such change therein. 

10

   ARTICLE II

AMOUNTS AND TERMS OF THE COMMITMENTS 

        SECTION
2.01    Commitments.    Each Lender severally agrees, on the terms and conditions hereinafter set forth, to
(a) make Advances to any Borrower and (b) to participate in Facility LCs issued upon the request of any Borrower, in each case from time to time during the period from the date hereof to
the Commitment Termination Date for such Borrower, in an aggregate amount not to exceed such Lender's Commitment Amount as in effect from time to time;  provided that (i) the aggregate principal
amount of all Advances by such Lender to any Borrower shall not exceed such Lender's Pro Rata Share of
the aggregate principal amount of all Advances to such Borrower; (ii) such Lender's participation in Facility LCs issued for the account of any Borrower shall not exceed such Lender's Pro Rata
Share of all LC Obligations of such Borrower; (iii) the Outstanding Credit Extensions to Exelon shall not at any time exceed the Exelon Sublimit; (iv) the Outstanding Credit Extensions
to ComEd shall not any time exceed the ComEd Sublimit; (v) the Outstanding Credit Extensions to PECO shall not at any time exceed the PECO Sublimit; (vi) the Outstanding Credit
Extensions to Genco shall not at any time exceed the Genco Sublimit; and (vii) the LC Obligations of all Borrowers collectively shall not at any time exceed the Letter of Credit Sublimit.
Within the foregoing limits, each Borrower may from time to time borrow, prepay pursuant to Section 2.10 and reborrow hereunder prior to the
Commitment Termination Date for such Borrower. 

        SECTION
2.02    Procedures for Advances; Limitations on Borrowings.    

        (a)  Any
Borrower may request Advances hereunder by giving notice (a "Notice of Borrowing") to the Administrative Agent (which
shall promptly advise each Lender of its receipt thereof) not later than 10:00 A.M. (Chicago time) on the third Business Day prior to the date of any proposed borrowing of Eurodollar Rate
Advances and on the date of any proposed borrowing of Base Rate Advances. Each Notice of Borrowing shall be sent by telecopier, confirmed immediately in writing, and shall be in substantially the form
of Exhibit B, specifying therein the Borrower which is requesting Advances and the requested (i) date of borrowing (which shall be a
Business Day), (ii) Type of Advances to be borrowed, (iii) the aggregate amount of such Advances, and (iv) in the case of a borrowing of Eurodollar Rate Advances, the initial
Interest Period therefor. Each Lender shall, before 12:00 noon (Chicago time) on the date of such borrowing, make available for the account of its Applicable Lending Office to the Administrative Agent
at its address referred to in Section 8.02, in same day funds, such Lender's ratable portion of the requested borrowing. After the Administrative
Agent's receipt of such funds and
upon fulfillment of the applicable conditions set forth in Article III, the Administrative Agent will make such funds available to the applicable
Borrower at the Administrative Agent's aforesaid address. 

        (b)  Each
Notice of Borrowing shall be irrevocable and binding on the applicable Borrower. If a Notice of Borrowing requests Eurodollar Rate Advances, the applicable Borrower
shall indemnify each Lender against any loss, cost or expense incurred by such Lender as a result of any failure to fulfill on or before the requested borrowing date the applicable conditions set
forth in Article III, including any loss, cost or expense incurred by reason of the liquidation or reemployment of deposits or other funds
acquired by such Lender to fund the requested Advance to be made by such Lender. 

        (c)  Unless
the Administrative Agent shall have received notice from a Lender prior to the date of any requested borrowing that such Lender will not make available to the
Administrative Agent such Lender's ratable portion of such borrowing, the Administrative Agent may assume that such Lender has made such portion available to the Administrative Agent on the requested
borrowing date in accordance with Section 2.02(a) and the Administrative Agent may, in reliance upon such assumption, make available to the
applicable Borrower on such date a corresponding 

11

 

amount. If and to the extent that such Lender shall not have so made such ratable portion available to the Administrative Agent, such Lender and such Borrower severally agree to repay to the
Administrative Agent forthwith on demand such corresponding amount together with interest thereon, for each day from the date such amount is made available to such Borrower until the date such amount
is repaid to the Administrative Agent, at (i) in the case of such Borrower, the interest rate applicable at the time to Advances made in connection with such borrowing and (ii) in the
case of such Lender, the Federal Funds Rate. If such Lender shall repay to the Administrative Agent such corresponding amount, such amount so repaid shall constitute such Lender's Advance as part of
such Borrowing for purposes of this Agreement. 

        (d)  The
failure of any Lender to make the Advance to be made by it on any borrowing date shall not relieve any other Lender of its obligation, if any, hereunder to make its
Advance on such date, but no Lender shall be responsible for the failure of any other Lender to make any Advance to be made by such other Lender. 

        (e)  Each
Borrowing of Base Rate Advances shall at all times be in an aggregate amount not less than $5,000,000; and each Borrowing of Eurodollar Rate Advances shall at all
times be in an aggregate amount not less than $10,000,000. Notwithstanding anything to the contrary contained herein, the Borrowers collectively may not have more than 25 Borrowings of Eurodollar Rate
Advances outstanding at any time. 

        SECTION
2.03    Facility and Utilization Fees.    

        (a)  Each
Borrower agrees to pay to the Administrative Agent, for the account of the Lenders according to their Pro Rata Shares, a facility fee for the period from the
Closing Date to the Commitment Termination Date for such Borrower (or, if later, the date on which all Outstanding Credit Extensions to such Borrower have been paid in full) in an amount equal to the
Facility Fee Rate for such Borrower multiplied by such Borrower's Sublimit (or, after the Commitment Termination Date for such Borrower, the principal amount of all Outstanding Credit Extensions to
such Borrower), payable on the last day of each March, June, September and December and on the Final Termination Date for such Borrower (and, if applicable, thereafter on demand). 

        (b)  Utilization Fee. Each Borrower agrees to pay to the Administrative Agent, for the account of the Lenders according to
their Pro Rata Shares, a utilization fee for each day on which either (i) the Outstanding Credit Extensions to all Borrowers exceed 331/3% of the aggregate amount of the
Commitment Amounts or (ii) such Borrower's Outstanding Credit Extensions exceed 331/3% of such Borrower's Sublimit, in each case in an amount equal to the Utilization Fee Rate
for such Borrower multiplied by such Borrower's Outstanding Credit Extensions on such day, payable on the last day of each March, June, September and December and on the Commitment Termination Date
for such Borrower. 

        SECTION
2.04    Reduction of Commitment Amounts; Adjustment of Sublimits.    (a) Each Borrower shall have the
right, upon at least two Business Days' notice to the Administrative Agent, to ratably reduce the respective Commitment Amounts of the Lenders in accordance with their Pro Rata Shares;  provided that no
Borrower may reduce the Commitment Amounts by an aggregate amount that is greater than the remainder of the amount of such Borrower's
Sublimit minus the Outstanding Credit Extensions to such Borrower; and provided, further, that each
partial reduction of the Commitment Amounts shall be in the aggregate amount of $10,000,000 or an integral multiple thereof. Once reduced pursuant to this  Section 2.04, the Commitment Amounts may
not be increased. 

        (b)  Any
Borrower shall have the right at any time such Borrower's Sublimit has been reduced to zero, upon at least two Business Days' notice to the Administrative Agent, to
terminate the Commitment of each Lender with respect to such Borrower in its entirety (but only if such Borrower concurrently pays all of its obligations hereunder). Upon any such termination, such
Borrower shall cease to be a party hereto and shall no longer have any rights or obligations 

12

 

hereunder (except under provisions hereof which by their terms would survive any termination hereof). 

        (c)  The
Borrowers may from time to time so long as no Event of Default or Unmatured Event of Default exists with respect to any Borrower, upon not less than five Business
Days' notice to the Administrative Agent (which shall promptly notify each Lender), change their respective Sublimits; provided that (i) the sum
of the Sublimits shall at all times be equal to the aggregate amount of the Commitment Amounts; and (ii) after giving effect to any adjustment of the Sublimits, (A) each Sublimit shall
be an integral multiple of $50,000,000 (except that one Sublimit may not be such an integral multiple if the aggregate amount of the Commitment Amounts is not an integral multiple of $50,000,000);
(B) Genco's Sublimit shall not exceed $800,000,000 and no other Borrower's Sublimit shall exceed $1,000,000,000; (C) the Outstanding Credit Extensions to Exelon shall not exceed the
Exelon
Sublimit; (D) the Outstanding Credit Extensions to ComEd shall not exceed the ComEd Sublimit; (E) the Outstanding Credit Extensions to Genco shall not exceed the Genco Sublimit and
(F) the Outstanding Credit Extensions to PECO shall not exceed the PECO Sublimit. 

        SECTION
2.05    Repayment of Advances.    Each Borrower shall repay the principal amount of all Advances made to it on
or before the Maturity Date for such Borrower. 

        SECTION
2.06    Interest on Advances.    Each Borrower shall pay interest on the unpaid principal amount of each
Advance made to it from the date of such Advance until such principal amount shall be paid in full, at the following rates per annum: 

        (a)  At
all times such Advance is a Base Rate Advance, a rate per annum equal to the Base Rate in effect from time to time, payable quarterly on the last day of each March,
June, September and December and on the date such Base Rate Advance is converted to a Eurodollar Rate Advance or paid in full. 

        (b)  Subject
to Section 2.07, at all times such Advance is a Eurodollar Rate Advance, a rate per annum equal to the sum
of the Eurodollar Rate for each applicable Interest Period plus the Applicable Margin in effect from time to time for such Borrower, payable on the last
day of each Interest Period for such Eurodollar Rate Advance (and, if any Interest Period for such Advance is six months, on the day that is three months after the first day of such Interest Period)
or, if earlier, on the date such Eurodollar Rate Advance is converted to a Base Rate Advance or paid in full. 

        SECTION
2.07    Additional Interest on Eurodollar Advances.    Each Borrower shall pay to each Lender, so long as such
Lender shall be required under regulations of the Board of Governors of the Federal Reserve System to maintain reserves with respect to liabilities or assets consisting of or including Eurocurrency
Liabilities, additional interest on the unpaid principal amount of each Eurodollar Rate Advance of such Lender made to such Borrower, from the date of such Advance until such principal amount is paid
in full or converted to a Base Rate Advance, at an interest rate per annum equal to the remainder obtained by subtracting (i) the Eurodollar Rate for each Interest Period for such Advance from
(ii) the rate obtained by dividing such Eurodollar Rate by a percentage equal to 100% minus the Eurodollar Rate Reserve Percentage of such Lender for such Interest Period, payable on each date
on which interest is payable on such Advance; provided that no Lender shall be entitled to demand such additional interest more than 90 days
following the last day of the Interest Period in respect of which such demand is made; provided,  further, that the foregoing proviso shall in no way limit
the right of any Lender to demand or receive such additional interest to the extent that such
additional interest relates to the retroactive application of the reserve requirements described above if such demand is made within 90 days after the implementation of such retroactive reserve
requirements. Such additional interest shall be determined by the applicable Lender and notified to the applicable Borrower through the Administrative Agent, and such determination shall be conclusive
and binding for all purposes, absent manifest error. 

13

 

        SECTION
2.08    Interest Rate Determination.    (a) Each Reference Bank agrees to furnish to the Administrative
Agent timely information for the purpose of determining each Eurodollar Rate. If any one of the Reference Banks shall not furnish such timely information to the Administrative Agent for the purpose of
determining any such interest rate, the Administrative Agent shall determine such interest rate on the basis of timely information furnished by the remaining Reference Banks. 

        (b)  The
Administrative Agent shall give prompt notice to the applicable Borrower and the Lenders of each applicable interest rate determined by the Administrative Agent for
purposes of Section 2.06(a) or (b), and the applicable rate, if any, furnished by each Reference
Bank for the purpose of determining each applicable interest rate under Section 2.06(b).

        (c)  If
all of the Reference Banks fail to furnish timely information to the Administrative Agent for determining the Eurodollar Rate for any Eurodollar Rate Advances, 

        (i)    the
Administrative Agent shall forthwith notify the applicable Borrower and the Lenders that the interest rate cannot be determined for such Eurodollar Rate Advances, 

        (ii)  each
such Advance will automatically, on the last day of the then existing Interest Period therefor, convert into a Base Rate Advance (or if such Advance is then a Base
Rate Advance, will continue as a Base Rate Advance), and 

        (iii)  the
obligation of the Lenders to make, continue or convert into Eurodollar Rate Advances shall be suspended until the Administrative Agent shall notify the applicable
Borrower and the Lenders that the circumstances causing such suspension no longer exist. 

        (d)  If,
with respect to any Eurodollar Rate Advances, the Majority Lenders notify the Administrative Agent that the Eurodollar Rate for any Interest Period for such Advances
will not adequately reflect the cost to such Majority Lenders of making, funding or maintaining their respective Eurodollar Rate Advances for such Interest Period, the Administrative Agent shall
forthwith so notify the applicable Borrower and the Lenders, whereupon 

        (i)    each
Eurodollar Rate Advance will automatically, on the last day of the then existing Interest Period therefor (unless prepaid or converted to a Base Rate Advance prior
to such day), convert into a Base Rate Advance, and 

        (ii)  the
obligation of the Lenders to make, continue or convert into Eurodollar Rate Advances shall be suspended until the Administrative Agent shall notify the applicable
Borrower and the Lenders that the circumstances causing such suspension no longer exist. 

        SECTION
2.09    Continuation and Conversion of Advances.    (a) Any Borrower may on any Business Day, upon
notice given to the Administrative Agent not later than 10:00 A.M. (Chicago time) on the third Business Day prior to the date of any proposed continuation of or conversion into Eurodollar Rate
Advances, and on the date of any proposed conversion into Base Rate Advances, and subject to the provisions of Sections 2.08 and  2.12, continue Eurodollar
Rate Advances for a new Interest Period or convert a Borrowing of Advances of one Type into Advances of the other Type;
provided that any continuation of Eurodollar Rate Advances or conversion of Eurodollar Rate Advances into Base Rate Advances shall be made on, and only
on, the last day of an Interest Period for such Eurodollar Rate Advances, unless, in the case of such a conversion, such Borrower shall also reimburse the Lenders pursuant to  Section 8.04(b) on the
date of such conversion. Each such notice of a continuation or conversion shall, within the restrictions specified above,
specify (i) the date of such continuation or conversion, (ii) the Advances to be continued or converted, and (iii) in the case of continuation of or conversion into Eurodollar
Rate Advances, the duration of the Interest Period for such Advances. 

        (b)  If
a Borrower shall fail to select the Type of any Advance or the duration of any Interest Period for any Borrowing of Eurodollar Rate Advances in accordance with the
provisions 

14

 

contained in the definition of "Interest Period" in Section 1.01 and Section 2.09(a), the
Administrative Agent will forthwith so notify such Borrower and the Lenders and such Advances will automatically, on the last day of the then existing Interest Period therefor, convert into Base Rate
Advances. 

        SECTION
2.10    Prepayments.    Any Borrower may, upon notice to the Administrative Agent at least three Business Days
prior to any prepayment of Eurodollar Rate Advances, or one Business Day's notice prior to any prepayment of Base Rate Advances, in each case stating the proposed date and aggregate principal amount
of the prepayment, and if such notice is given that Borrower shall, prepay the outstanding principal amounts of the Advances made as part of the same Borrowing in whole or ratably in part, together
with accrued interest to the date of such prepayment on the principal amount prepaid; provided that (i) each partial prepayment shall be in an
aggregate principal amount not less than $10,000,000 or a higher integral multiple of $1,000,000 in the case of any prepayment of Eurodollar Rate Advances and $5,000,000 or a higher integral multiple
of $1,000,000 in the case of any prepayment of Base Rate Advances, and (ii) in the case of any such prepayment of a Eurodollar Rate Advance, such Borrower shall be obligated to reimburse the
Lenders pursuant to Section 8.04(b) on the date of such prepayment. After the Commitment Termination Date, amounts prepaid under this  Section 2.10 may not be reborrowed. 

        SECTION
2.11    Increased Costs.    (a) If on or after the date of this Agreement, any Lender or the LC Issuer
determines that (i) the introduction of or any change (other than, in the case of Eurodollar Rate Advances, any change by way of imposition or increase of reserve requirements, included in the
Eurodollar Rate Reserve Percentage) in or in the interpretation of any law or regulation or (ii) the
compliance with any guideline or request from any central bank or other governmental authority (whether or not having the force of law) shall increase the cost to such Lender or the LC Issuer, as the
case may be, of agreeing to make or making, funding or maintaining Eurodollar Rate Advances or of issuing or participating in any Facility LC, then the applicable Borrower shall from time to time,
upon demand by such Lender (with a copy of such demand to the Administrative Agent) or the LC Issuer, as applicable, pay to the Administrative Agent for the account of such Lender additional amounts
(without duplication of any amount payable pursuant to Section 2.14) sufficient to compensate such Lender or the LC Issuer, as applicable, for
such increased cost; provided that no Lender shall be entitled to demand such compensation more than 90 days following the last day of the
Interest Period in respect of which such demand is made and the LC Issuer shall not be entitled to demand such compensation more than 90 days following the expiration or termination (by a
drawing or otherwise) of the Facility LC in respect of which such demand is made; provided, further,
that the foregoing proviso shall in no way limit the right of any Lender or the LC Issuer to demand or receive such compensation to the extent that such compensation relates to the retroactive
application of any law, regulation, guideline or request described in clause (i) or  (ii) above if such demand is made within 90 days after
the implementation of such retroactive law, interpretation, guideline or request. A
certificate as to the amount of such increased cost, submitted to the applicable Borrower and the Administrative Agent by a Lender or the LC Issuer, shall be conclusive and binding for all purposes,
absent manifest error. 

        (b)  If
any Lender or the LC Issuer determines that, after the date of this Agreement, compliance with any law or regulation or any guideline or request from any central bank
or other governmental authority (whether or not having the force of law) regarding capital adequacy requirements affects or would affect the amount of capital required or expected to be maintained by
such Lender or the LC Issuer or any Person controlling such Lender or the LC Issuer (including, in any event, any determination after the date of this Agreement by any such governmental authority or
central bank that, for purposes of capital adequacy requirements, any Lender's Commitment to a Borrower or the LC Issuer's commitment to issue Facility LCs for the account of such Borrower as the case
may be does not constitute a commitment with an original 

15

 

maturity of less than one year) and that the amount of such capital is increased by or based upon the existence of such Lender's Commitment to such Borrower or the LC Issuer's commitment to issue
Facility LCs for the account of such Borrower, as applicable, or the Advances made by such Lender to such Borrower or Reimbursement Obligations owed to the LC Issuer by such Borrower, as the case may
be, then, upon demand by such Lender (with a copy of such demand to the Administrative Agent) or the LC Issuer, as applicable, such Borrower shall immediately pay to the Administrative Agent for the
account of such Lender or LC Issuer, as applicable, from time to time as specified by such Lender or the LC Issuer, as applicable, additional amounts sufficient to compensate such Lender, the LC
Issuer or such controlling Person, as applicable, in the light of such circumstances, to the extent that such Lender determines such increase in capital to be allocable to the existence of such
Lender's Commitment to such Borrower or the Advances made by such Lender to such Borrower or the LC Issuer determines such increase in capital to be allocable to the LC Issuer's commitment to issue
Facility LCs for the account of such Borrower or the Reimbursement Obligations owed by such Borrower to the LC Issuer; provided that no Lender or the LC
Issuer shall be entitled to demand such compensation more than one year following the payment to or for the account of such Lender of all other amounts payable hereunder by such Borrower and under any
Note of such Borrower held by such Lender and the termination of such Lender's Commitment to such Borrower and the LC Issuer shall not be entitled to demand such compensation more than one year after
the expiration or termination (by drawing or otherwise) of all Facility LCs issued for the account of such Borrower and the termination of the LC Issuer's commitment to issue Facility LCs for the
account of such Borrower; provided, further, that the foregoing proviso shall in no way limit the right
of any Lender or the LC
Issuer to demand or receive such compensation to the extent that such compensation relates to the retroactive application of any law, regulation, guideline or request described above if such demand is
made within one year after the implementation of such retroactive law, interpretation, guideline or request. A certificate as to such amounts submitted to the applicable Borrower and the
Administrative Agent by the applicable Lender or the LC Issuer shall be conclusive and binding, for all purposes, absent manifest error. 

        (c)  Any
Lender claiming compensation pursuant to this Section 2.11 shall use its best efforts (consistent with its
internal policy and legal and regulatory restrictions) to change the jurisdiction of its Applicable Lending Office if the making of such a change would avoid the need for, or reduce the amount of, any
such compensation that may thereafter accrue and would not, in the reasonable judgment of such Lender, be otherwise disadvantageous to such Lender. 

        SECTION
2.12    Illegality.    Notwithstanding any other provision of this Agreement, if any Lender shall notify the
Administrative Agent that the introduction of or any change in or in the interpretation of any law or regulation makes it unlawful, or any central bank or other governmental authority asserts that it
is unlawful, for such Lender or its Eurodollar Lending Office to perform its obligations hereunder to make Eurodollar Rate Advances or to fund or maintain Eurodollar Rate Advances hereunder,
(i) the obligation of such Lender to make, continue or convert Advances into Eurodollar Rate Advances shall be suspended (subject to the following paragraph of this  Section 2.12) until the
Administrative Agent shall notify the applicable Borrower and the Lenders that the circumstances causing such suspension
no longer exist and (ii) all Eurodollar Rate Advances of such Lender then outstanding shall, on the last day of the then applicable Interest Period (or such earlier date as such Lender shall
designate upon not less than five Business Days' prior written notice to the Administrative Agent), be automatically converted into Base Rate Advances. 

        If
the obligation of any Lender to make, continue or convert into Eurodollar Rate Advances has been suspended pursuant to the preceding paragraph, then, unless and until the
Administrative Agent shall notify the applicable Borrower and the Lenders that the circumstances causing such suspension no longer exist, (i) all Advances that would otherwise be made by such
Lender as Eurodollar Rate 

16

 

Advances shall instead be made as Base Rate Advances and (ii) to the extent that Eurodollar Rate Advances of such Lender have been converted into Base Rate Advances pursuant to the preceding
paragraph or made instead as Base Rate Advances pursuant to the preceding clause (i), all payments and prepayments of principal that would have
otherwise been applied to such Eurodollar Rate Advances of such Lender shall be applied instead to such Base Rate Advances of such Lender. 

        SECTION
2.13    Payments and Computations.    (a) Each Borrower shall make each payment hereunder and under any
Note issued by such Borrower not later than 10:00 A.M. (Chicago time) on the day when due in U.S. dollars to the Administrative Agent at its address referred to in  Section 8.02 in same day
funds without setoff, counterclaim or other deduction. The Administrative Agent will promptly thereafter cause to be
distributed like funds relating to the payment of principal, interest, facility fees, utilization fees and letter of credit fees ratably (other than amounts payable pursuant to  Section 2.02(b),
2.07, 2.11,
2.14 or 8.04(b)) to the Lenders for the account of their respective Applicable Lending Offices, and like
funds relating to the payment of any other amount payable to any Lender to such Lender for the account of its Applicable Lending Office, in each case to be applied in accordance with the terms of this
Agreement. Upon its acceptance of an Assignment and Acceptance and recording of the information contained therein in the Register pursuant to  Section 8.07(d), from and after the effective date
specified in such Assignment and Acceptance, the Administrative Agent shall make all payments
hereunder and under the Notes in respect of the interest assigned thereby to the Lender assignee thereunder, and the parties to such Assignment and Acceptance shall make all appropriate adjustments in
such payments for periods prior to such effective date directly between themselves. 

        (b)  Each
Borrower hereby authorizes each Lender, if and to the extent any payment owed to such Lender by such Borrower is not made when due hereunder, to charge from time to
time against any or all of such Borrower's accounts with such Lender any amount so due. 

        (c)  All
computations of interest based on the Prime Rate shall be made by the Administrative Agent on the basis of a year of 365 or 366 days, as the case may be, and
all computations of interest based on the Eurodollar Rate or the Federal Funds Rate and of fees shall be made by the Administrative Agent, and all computations of interest pursuant to  Section 2.07
shall be made by a Lender, on the basis of a year of 360 days, in each case for the actual number of days (including the
first day but excluding the last day) occurring in the period for which such interest or fees are payable. Each determination by the Administrative Agent (or, in the case of  Section 2.07, by a
Lender) of an interest rate hereunder shall be conclusive and binding for all purposes, absent manifest error. 

        (d)  Whenever
any payment hereunder or under the Notes shall be stated to be due on a day other than a Business Day, such payment shall be made on the next succeeding
Business Day, and such extension of time shall in such case be included in the computation of any interest or fees, as the case may be; provided that if
such extension would cause payment of interest on or principal of a Eurodollar Rate Advance to be made in the next following calendar month, such payment shall be made on the next preceding Business
Day. 

        (e)  Unless
the Administrative Agent shall have received notice from a Borrower prior to the date on which any payment is due by such Borrower to the Lenders hereunder that
such Borrower will not make such payment in full, the Administrative Agent may assume that such Borrower has made such payment in full to the Administrative Agent on such date and the Administrative
Agent may, in reliance upon such assumption, cause to be distributed to each Lender on such due date an amount equal to the amount then due such Lender. If and to the extent that such Borrower shall
not have so made such payment in full to the Administrative Agent, each Lender shall repay to the Administrative Agent forthwith on demand such amount distributed to such Lender together with interest
thereon, for each day from the date such amount is distributed to such 

17

 

Lender until the date such Lender repays such amount to the Administrative Agent, at the Federal Funds Rate. 

        (f)    Notwithstanding
anything to the contrary contained herein, any amount payable by a Borrower hereunder that is not paid when due (whether at stated maturity, by
acceleration or otherwise) shall (to the fullest extent permitted by law) bear interest from the date when due until paid in full at a rate per annum equal at all times to the Base Rate plus 2%,
payable upon demand. 

        SECTION
2.14    Taxes.    (a) Any and all payments by any Borrower hereunder or under any Note issued by such
Borrower shall be made, in accordance with Section 2.13, free and clear of and without deduction for any and all present or future taxes, levies,
imposts, deductions, charges or withholdings, and all liabilities with respect thereto, excluding, in the case of each Lender, the LC Issuer and the
Administrative Agent, taxes imposed on its income, and franchise taxes imposed on it, by the jurisdiction under the laws of which such Lender, the LC Issuer or the Administrative Agent (as the case
may be) is organized or any political subdivision thereof and, in the case of each Lender, taxes imposed on its income, and franchise taxes imposed on it, by the jurisdiction of such Lender's
Applicable Lending Office or any political subdivision thereof (all such non-excluded taxes, levies, imposts, deductions, charges, withholdings and liabilities being hereinafter referred
to as "Taxes"). If a Borrower shall be required by law to deduct any Taxes from or in respect of any sum payable hereunder or under any Note issued by
such Borrower to any Lender, the LC Issuer or the Administrative Agent, (i) the sum payable shall be increased as may be necessary so that after making all required deductions (including
deductions applicable to additional sums payable under this Section 2.14) such Lender, the LC Issuer or the Administrative Agent (as the case may
be) receives an amount equal to the sum it would have received had no such deductions been made, (ii) such Borrower shall make such deductions and (iii) such Borrower shall pay the full
amount deducted to the relevant taxation authority or other authority in accordance with applicable law. 

        (b)  In
addition, each Borrower severally agrees to pay any present or future stamp or documentary taxes or any other excise or property taxes, charges or similar levies to
the extent arising from the execution, delivery or registration of this Agreement or the Notes (hereinafter referred to as "Other Taxes"), in each case
to the extent attributable to such Borrower; it being understood that to the extent any Other Taxes so payable are not attributable to any particular
Borrower, each Borrower shall pay its proportionate share thereof according to the amounts of the Borrowers' respective Sublimits at the time such Other Taxes arose. 

        (c)  No
Lender may claim or demand payment or reimbursement in respect of any Taxes or Other Taxes pursuant to this  Section 2.14 if such Taxes or Other Taxes, as the case may be, were imposed solely as the
result of a voluntary change in the location of the
jurisdiction of such Lender's Applicable Lending Office. 

        (d)  Each
Borrower will indemnify each Lender, the LC Issuer and the Administrative Agent for the full amount of Taxes or Other Taxes (including any Taxes or Other Taxes
imposed by any jurisdiction on amounts payable under this Section 2.14) paid by such Lender, the LC Issuer or the Administrative Agent (as the case may be) and any liability (including
penalties, interest and expenses) arising therefrom or with respect thereto, whether or not such Taxes or Other Taxes were correctly or legally asserted, in each case to the extent attributable to
such Borrower; it being understood that to the extent any Taxes, Other Taxes or other liabilities described above are not attributable to a particular
Borrower, each Borrower shall pay its proportionate share thereof according to the amounts of the Borrowers' respective Sublimits at the time such Taxes, Other Taxes or other liability arose. This
indemnification
shall be made within 30 days from the date such Lender, the LC Issuer or the Administrative Agent (as the case may be) makes written demand therefor. 

18

 

        (e)  Prior
to the date of an initial borrowing hereunder in the case of each Lender listed on the signature pages hereof, and on the date of the Assignment and Acceptance
pursuant to which it became a Lender in the case of each other Lender, and from time to time thereafter within 30 days from the date of request if requested by any Borrower or the
Administrative Agent, each Lender organized under the laws of a jurisdiction outside the United States shall provide the Administrative Agent and each Borrower with the forms prescribed by the
Internal Revenue Service of the United States certifying that such Lender is exempt from United States withholding taxes with respect to all payments to be made to such Lender hereunder and under the
Notes. If for any reason during the term of this Agreement, any Lender becomes unable to submit the forms referred to above or the information or representations contained therein are no longer
accurate in any material respect, such Lender shall notify the Administrative Agent and the Borrowers in writing to that effect. Unless the Borrowers and the Administrative Agent have received forms
or other documents satisfactory to them indicating that payments hereunder or under any Note are not subject to United States withholding tax, the Borrowers or the Administrative Agent shall withhold
taxes from such payments at the applicable statutory rate in the case of payments to or for any Lender organized under the laws of a jurisdiction outside the United States and no Lender may claim or
demand payment or reimbursement for such withheld taxes pursuant to this Section 2.14. 

        (f)    Any
Lender claiming any additional amounts payable pursuant to this Section 2.14 shall use its best efforts
(consistent with its internal policy and legal and regulatory restrictions) to change the jurisdiction of its Applicable Lending Office if the making of such a change would avoid the need for, or
reduce the amount of, any such additional amounts which may thereafter accrue and would not, in the reasonable judgment of such Lender, be otherwise disadvantageous to such Lender. 

        (g)  If
a Borrower makes any additional payment to any Lender pursuant to this Section 2.14 in respect of any Taxes or
Other Taxes, and such Lender determines that it has received (i) a refund of such Taxes or Other Taxes or (ii) a credit against or relief or remission for, or a reduction in the amount
of, any tax or other governmental charge attributable solely to any deduction or credit for any Taxes or Other Taxes with respect to which it has received payments under this  Section 2.14, such
Lender shall, to the extent that it can do so without prejudice to the retention of such refund, credit, relief, remission or
reduction, pay to such Borrower such amount as such Lender shall have determined to be attributable to the deduction or withholding of such Taxes or Other Taxes. If, within one year after the payment
of any such amount to such Borrower, such Lender determines that it was not entitled to such refund, credit, relief, remission or reduction to the full extent of any payment made pursuant to the first
sentence of this Section 2.14(g), such Borrower shall upon notice and demand of such Lender promptly repay the amount of such overpayment. Any
determination made by a Lender pursuant to this Section 2.14(g) shall in the absence of bad faith or manifest error be conclusive, and nothing in
this Section 2.14(g) shall be construed as requiring any Lender to conduct its business or to arrange or alter in any respect its tax or
financial affairs (except as required by Section 2.14(f)) so that it is entitled to receive such a refund, credit or reduction or as allowing any
Person to inspect any records, including tax returns, of such Lender. 

        (h)  Without
prejudice to the survival of any other agreement of any Borrower or any Lender hereunder, the agreements and obligations of the Borrowers and the Lenders
contained in this Section 2.14 shall survive the payment in full of principal and interest hereunder and under the Notes;  provided that no Lender
shall be entitled to demand any payment from a Borrower under this  Section 2.14 more than one year following the payment to or for the account of such Lender of all other amounts payable by such
Borrower
hereunder and under any Note issued by such Borrower to such Lender and the termination of such Lender's Commitment to such Borrower; 

19

 

 provided, further, that the foregoing proviso shall in no way limit the right of any Lender to demand or receive any payment
under this Section 2.14 to the extent that such payment relates to the retroactive application of any Taxes or Other Taxes if such demand is made
within one year after the implementation of such Taxes or Other Taxes. 

        SECTION
2.15    Sharing of Payments, Etc.    If any Lender shall obtain any payment (whether voluntary, involuntary,
through the exercise of any right of set-off, or otherwise) on account of the Advances made by it to any Borrower or its participation interest in any Facility LC issued for the account of
any Borrower (other than pursuant to Section 2.02(b), 2.07,  2.11, 2.14 or 8.04(b)) in excess of its ratable share of
payments on account of the Advances to such Borrower and Facility LCs issued for the account of such Borrower obtained by all Lenders, such Lender shall forthwith purchase from the other Lenders such
participations in the Advances made by them to such Borrower and/or LC Obligations of such Borrower as shall be necessary to cause such purchasing Lender to share the excess payment ratably with each
of them, provided that if all or any portion of such excess payment is thereafter recovered from such purchasing Lender, such purchase from each Lender
shall be rescinded and such Lender shall repay to the purchasing Lender the purchase price to the extent of such recovery together with an amount equal to such Lender's ratable share (according to the
proportion of (i) the amount of such Lender's required repayment to (ii) the total amount so recovered from the purchasing Lender) of any interest or other amount paid or payable by the
purchasing Lender in respect of the total amount so recovered. The Borrowers agree that any Lender so purchasing a participation from another Lender pursuant to this  Section 2.15 may, to the
fullest extent permitted by law, exercise all its rights of payment (including the right of set-off) with
respect to such participation as fully as if such Lender were the direct creditor of the applicable Borrower in the amount of such participation. 

        SECTION
2.16    Facility LCs.    

        SECTION
2.16.1    Issuance.    The LC Issuer hereby agrees, on the terms and conditions set forth in this Agreement
(including the limitations set forth in Section 2.01), upon the request of any Borrower, to issue standby letters of credit (each a
"Facility LC") and to renew, extend, increase or otherwise modify Facility LCs ("Modify," and each such
action a "Modification") for such Borrower, from time to time from and including the date of this Agreement and prior to the Commitment Termination Date
for such Borrower. No Facility LC shall have an expiry date later than the earlier of (a) one year after the date of issuance, or of extension or renewal, thereof or (b) 360 days
after the scheduled Commitment Termination Date. No Facility LC may be renewed or extended, or increased in amount, after the Commitment Termination Date (but a Facility LC may be decreased in amount
or, subject to the foregoing provisions of this sentence, otherwise amended after such date). 

        SECTION
2.16.2    Participations.    Upon the issuance or Modification by the LC Issuer of a Facility LC in accordance
with this Section 2.16, the LC Issuer shall be deemed, without further action by any party hereto, to have unconditionally and irrevocably sold
to each Lender, and each Lender shall be deemed, without further action by any party hereto, to have unconditionally and irrevocably purchased from the LC Issuer, a participation in such Facility LC
(and each Modification thereof) and the related LC Obligations in proportion to its Pro Rata Share. 

        SECTION
2.16.3    Notice.    Subject to Section 2.16.1, the
applicable Borrower shall give the LC Issuer notice prior to 10:00 A.M. (Chicago time) at least five Business Days prior to the proposed date of issuance or Modification of each Facility LC,
specifying the beneficiary, the proposed date of issuance (or Modification) and the expiry date of such Facility LC, and describing the proposed terms of such Facility LC and the nature of the
transactions proposed to be supported thereby. Upon receipt of such notice, the LC Issuer shall promptly notify the Administrative Agent, and the Administrative Agent shall promptly notify each
Lender, of the contents thereof and of the amount of such Lender's participation in such proposed Facility LC. 

20

 

The issuance or Modification by the LC Issuer of any Facility LC shall, in addition to the applicable conditions precedent set forth in  Article III (the satisfaction of which the LC Issuer shall
have no duty to ascertain), be subject to the conditions precedent that such Facility
LC shall be satisfactory to the LC Issuer and that the applicable Borrower shall have executed and delivered such application agreement and/or such other instruments and agreements relating to such
Facility LC as the LC Issuer shall have reasonably requested (each a "Facility LC Application"). In the event of any conflict between the terms of this
Agreement and the terms of any Facility LC Application, the terms of this Agreement shall control. 

        SECTION
2.16.4    LC Fees.    Each Borrower shall pay to the Agent, for the account of the Lenders ratably in
accordance with their respective Pro Rata Shares, with respect to each Facility LC issued for the account of such Borrower, a letter of credit fee at a per annum rate equal to the LC Fee Rate to such
Borrower in effect from time to time on the average daily undrawn stated amount under such Facility LC, such fee to be payable in arrears on the last day of each March, June, September and December
and on the Final Termination Date for such Borrower (and thereafter on demand). Each Borrower shall also pay to the LC Issuer for its own account (x) a fronting fee in an amount and at the
times agreed upon between the LC Issuer and such Borrower and (y) documentary and processing charges in connection with the issuance or Modification of and draws under Facility LCs in
accordance with the LC Issuer's standard schedule for such charges as in effect from time to time. 

        SECTION
2.16.5    Administration; Reimbursement by Lenders.    Upon receipt from the beneficiary of any Facility LC of
any demand for payment under such Facility LC, the LC Issuer shall notify the Administrative Agent and the Administrative Agent shall promptly notify the applicable Borrower and each Lender as to the
amount to be paid by the LC Issuer as a result of such demand and the proposed payment date (the "LC Payment Date"). The responsibility of the LC Issuer
to the applicable Borrower and each Lender shall be only to determine that the documents (including each demand for payment) delivered under each Facility LC in connection with such presentment shall
be in conformity in all material respects with such Facility LC. The LC Issuer shall endeavor to exercise the same care in
the issuance and administration of the Facility LCs as it does with respect to letters of credit in which no participations are granted, it being understood that in the absence of any gross negligence
or willful misconduct by the LC Issuer, each Lender shall be unconditionally and irrevocably liable, without regard to the occurrence of the Commitment Termination Date or the Final Termination Date
for the applicable Borrower, the occurrence of any Event of Default or Unmatured Event of Default or any condition precedent whatsoever, to reimburse the LC Issuer on demand for (i) such
Lender's Pro Rata Share of the amount of each payment made by the LC Issuer under each Facility LC to the extent such amount is not reimbursed by the applicable Borrower pursuant to  Section 2.16.6,
plus (ii) interest on the foregoing amount to be reimbursed by such Lender, for each day from the date of the LC Issuer's
demand for such reimbursement (or, if such demand is made after 11:00 A.M. (Chicago time) on such day, from the next succeeding Business Day) to the date on which such Lender pays the amount to
be reimbursed by it, at a rate of interest per annum equal to the Federal Funds Rate for the first three days and, thereafter, at the Base Rate. 

        SECTION
2.16.6    Reimbursement by Borrowers.    Each Borrower shall be irrevocably and unconditionally obligated to
reimburse the LC Issuer on or before the applicable LC Payment Date for any amount to be paid by the LC Issuer upon any drawing under any Facility LC issued for the account of such Borrower, without
presentment, demand, protest or other formalities of any kind; provided that neither the applicable Borrower nor any Lender shall hereby be precluded
from asserting any claim for direct (but not consequential) damages suffered by such Borrower or such Lender to the extent, but only to the extent, caused by (i) the willful misconduct or gross
negligence of the LC Issuer in determining whether a request presented under any Facility LC 

21

 

complied with the terms of such Facility LC or (ii) the LC Issuer's failure to pay under any Facility LC after the presentation to it of a request strictly complying with the terms and
conditions of such Facility LC. All such amounts paid by the LC Issuer and remaining unpaid by the applicable Borrower shall bear interest, payable on demand, for each day until paid at a rate per
annum equal to the Base Rate plus 2%. The LC Issuer will pay to each Lender ratably in accordance with its Pro Rata Share all amounts received by it from any Borrower for application in payment, in
whole or in part, of the Reimbursement Obligation in respect of any Facility LC issued by the LC Issuer, but only to the extent such Lender has made payment to the LC Issuer in respect of such
Facility LC pursuant to Section 2.16.5. So long as the Commitment Termination Date has not occurred with respect to a Borrower, but subject to
the terms and conditions of this Agreement (including the submission of a Notice of Borrowing in compliance with Section 2.02 and the
satisfaction of the applicable conditions precedent set forth in Article III), such Borrower may request Advances hereunder for the purpose of
satisfying any Reimbursement Obligation. 

        SECTION
2.16.7    Obligations Absolute.    Each Borrower's obligations under this Section 2.16 shall be
absolute and unconditional under any and all circumstances and irrespective of any setoff, counterclaim or defense to payment which such Borrower may have against the LC Issuer, any Lender or any
beneficiary of a Facility LC. Each Borrower agrees with the LC Issuer and the Lenders that the LC Issuer and the Lenders shall not be responsible for, and such Borrower's Reimbursement Obligation in
respect of any Facility LC issued for its account shall not be affected by, among other things, the validity or genuineness of documents or of any endorsements thereon, even if such documents should
in fact prove to be in any or all respects invalid, fraudulent or forged, or any dispute between or among such Borrower, any of its Affiliates, the beneficiary of any Facility LC or any financing
institution or other party to whom any Facility LC may be transferred or any claims or defenses whatsoever of such Borrower or of any of its Affiliates against the beneficiary of any Facility LC or
any such transferee.
The LC Issuer shall not be liable for any error, omission, interruption or delay in transmission, dispatch or delivery of any message or advice, however transmitted, in connection with any Facility
LC. Each Borrower agrees that any action taken or omitted by the LC Issuer or any Lender under or in connection with any Facility LC issued for the account of such Borrower and the related drafts and
documents, if done without gross negligence or willful misconduct, shall be binding upon such Borrower and shall not put the LC Issuer or any Lender under any liability to such Borrower. Nothing in
this Section 2.16.7 is intended to limit the right of any Borrower to make a claim against the LC Issuer for damages as contemplated by the
proviso to the first sentence of Section 2.16.6. 

        SECTION
2.16.8    Actions of LC Issuer.    The LC Issuer shall be entitled to rely, and shall be fully protected in
relying, upon any Facility LC, draft, writing, resolution, notice, consent, certificate, affidavit, letter, cablegram, telegram, telecopy, telex or teletype message, statement, order or other document
believed by it to be genuine and correct and to have been signed, sent or made by the proper Person or Persons, and upon advice and statements of legal counsel, independent accountants and other
experts selected by the LC Issuer. The LC Issuer shall be fully justified in failing or refusing to take any action under this Agreement unless it shall first have received such advice or concurrence
of the Majority Lenders as it reasonably deems appropriate or it shall first be indemnified to its reasonable satisfaction by the Lenders against any and all liability and expense which may be
incurred by it by reason of taking or continuing to take any such action. Notwithstanding any other provision of this Section 2.16, the LC Issuer
shall in all cases be fully protected in acting, or in refraining from acting, under this Agreement in accordance with a request of the Majority Lenders, and such request and any action taken or
failure to act pursuant thereto shall be binding upon the Lenders and any future holder of a participation in any Facility LC. 

22

 

        SECTION
2.16.9    Indemnification.    Each Borrower hereby agrees to indemnify and hold harmless each Lender, the LC
Issuer and the Agent, and their respective directors, officers, agents and employees, from and against any and all claims and damages, losses, liabilities, costs or expenses which such Lender, the LC
Issuer or the Agent may incur (or which may be claimed against such Lender, the LC Issuer or the Agent by any Person whatsoever) by reason of or in connection with the issuance, execution and delivery
or transfer of or payment or failure to pay under any Facility LC issued for the account of such Borrower or any actual or proposed use of any such Facility LC, including any claims, damages, losses,
liabilities, costs or expenses which the LC Issuer may incur by reason of or in connection with (i) the failure of any other Lender to fulfill or comply with its obligations to the LC Issuer
hereunder (but nothing herein contained shall affect any right such Borrower may have against any defaulting Lender) or (ii) by reason of or on account of the LC Issuer issuing any such
Facility LC which specifies that the term "Beneficiary" included therein includes any successor by operation of law of the named Beneficiary, but which Facility LC does not require that any drawing by
any such successor Beneficiary be accompanied by a copy of a legal document, satisfactory to the LC Issuer, evidencing the appointment of such successor Beneficiary;  provided that no Borrower shall be
required to indemnify any Lender, the LC Issuer or the Agent for any claims, damages, losses, liabilities, costs or
expenses to the extent, but only to the extent, caused by (x) the willful misconduct or gross negligence of the LC Issuer in determining whether a request presented under any Facility LC
complied with the terms of such Facility LC or (y) the LC Issuer's failure to pay under any Facility LC after the presentation to it of a request strictly complying with the terms and
conditions of such Facility LC. Nothing in this Section 2.16.9 is intended to limit the obligations of any Borrower under any other provision of
this Agreement. 

        SECTION
2.16.10    Lenders' Indemnification.    Each Lender shall, ratably in accordance with its Pro Rata Share,
indemnify the LC Issuer, its affiliates and their respective directors, officers, agents and employees (to the extent not reimbursed by the Borrower) against any cost, expense (including reasonable
counsel fees and disbursements), claim, demand, action, loss or liability (except such as result from such indemnitees' gross negligence or willful misconduct or the LC Issuer's failure to pay under
any Facility LC after the presentation to it of a request strictly complying with the terms and conditions of the Facility LC) that such indemnitees may suffer or incur in connection with this  Section 2.16 or any action taken or omitted by such indemnitees hereunder. 

        SECTION
2.16.11    Rights as a Lender.    In its capacity as a Lender, the LC Issuer shall have the same rights and
obligations as any other Lender. 

        SECTION
2.17    Extension of Commitment Termination Date.    Exelon may request an extension of the scheduled
Commitment Termination Date for any or all Borrowers by submitting a request for an extension to the Administrative Agent (an "Extension Request") no
more than 60 days prior to the scheduled Commitment Termination Date then in effect. The Extension Request must specify the new scheduled Commitment Termination Date requested by Exelon and the
date (which must be at least 30 days after the Extension Request is delivered to the Administrative Agent) as of which the Lenders must respond to the Extension Request (the
"Response Date"). The new scheduled Commitment Termination Date shall be 364 days after the scheduled Commitment Termination Date in effect at
the time an Extension Request is received, including the scheduled Commitment Termination Date as one of the days in the calculation of the days elapsed. Promptly upon receipt of an Extension Request,
the Administrative Agent shall notify each Lender of the contents thereof and shall request each Lender to approve such Extension Request, which approval shall be at the sole discretion of each
Lender. Each Lender approving such Extension Request shall deliver its written consent no later than the Response Date. If the written consent of each of the Lenders (excluding any Person which ceases
to be a Lender pursuant to Section 8.07(g)(iii)) is received by the Administrative Agent, the new scheduled Commitment Termination Date specified
in the Extension Request shall become effective on the existing scheduled Commitment Termination Date and the Administrative Agent shall promptly notify each Borrower and each Lender of the new
scheduled Commitment Termination Date. If all Lenders (including any Person which becomes a Lender pursuant to Section 8.07(g)) do not consent to
an Extension Request, the scheduled Commitment Termination Date shall not be extended pursuant to such Extension Request. 

23

   ARTICLE III

CONDITIONS TO CREDIT EXTENSIONS 

        SECTION
3.01    Conditions Precedent to Initial Credit Extensions.    No Lender shall be obligated to make any
Advance, and the LC Issuer shall not be obligated to issue any Facility LC, unless the Administrative Agent shall have received (a) evidence, satisfactory to the Administrative Agent, that the
Borrowers have paid (or will pay with the proceeds of the initial Credit Extensions) all amounts then payable under the Existing Agreement and (b) each of the following documents, each dated
the date of the initial Credit Extension (or an earlier date satisfactory to the Administrative Agent, in form and substance satisfactory to the Administrative Agent and each (except for the Notes) in
sufficient copies to provide one for each Lender: 

          (i)  The
Notes payable to the order of each of the Lenders, respectively; 

        (ii)  Certified
copies of resolutions of the Board of Directors or equivalent managing body of each Borrower approving the transactions contemplated by this Agreement and the
Notes and of all documents evidencing other necessary organizational action of such Borrower with respect to this Agreement and the documents contemplated hereby; 

        (iii)  A
certificate of the Secretary or an Assistant Secretary of each Borrower certifying (A) the names and true signatures of the officers of such Borrower
authorized to sign this Agreement and the other documents to be delivered hereunder; (B) that attached thereto are true and correct copies of the articles or certificate of incorporation and
by-laws, or equivalent organizational documents, of such Borrower, in each case in effect on such date; and (C) that attached thereto are true and correct copies of all governmental
and regulatory authorizations and approvals required for the due execution, delivery and performance by such Borrower of this Agreement and the documents contemplated hereby; 

        (iv)  A
certificate signed by either the chief financial officer, principal accounting officer or treasurer of each Borrower stating that (A) the representations and
warranties contained in Section 4.01 are correct
on and as of the date of such certificate as though made on and as of such date and (B) no Event of Default or Unmatured Event of Default has occurred and is continuing on the date of such
certificate; and 

        (v)  A
favorable opinion of Ballard Spahr Andrews & Ingersoll LLC, special counsel for the Borrowers, substantially in the form of  Exhibit D-1; and a favorable opinion of Sidley Austin
Brown & Wood, special counsel to ComEd, substantially in the form of  Exhibit D-2. 

        SECTION
3.02    Conditions Precedent to All Credit Extensions.    The obligation of each Lender to make any Advance to
any Borrower and of the LC Issuer to issue or modify any Facility LC for the account of any Borrower shall be subject to the further conditions precedent that on the date of such Credit Extension the
following statements shall be true, and (a) the giving of the applicable Notice of Borrowing and the acceptance by the applicable Borrower of the proceeds of Advances pursuant thereto and
(b) the request by a Borrower for the issuance or Modification of a Facility LC shall, in each case, constitute a representation and warranty by such Borrower that on the date of the making of
such Advances or the issuance or Modification of such Facility LC such statements are true: 

        (A)  The
representations and warranties of such Borrower contained in Section 4.01 are correct on and as of the date of
such Credit Extension, before and after giving effect to such Credit Extension and, in the case of the making of Advances, the application of the proceeds therefrom, as though made on and as of such
date; provided that this Section 3.02(A) shall not apply to the representations and warranties
set forth in Sections 4.01(e)(i)(B), 4.01(e)(ii)(B),  4.01(e)(iii)(B) and 4.01(e)(iv)
(B) and the first sentence of  Section 4.01(f) with respect to a 

24

 

Borrowing if the proceeds of such Borrowing will be used exclusively to repay such Borrower's commercial paper (and, in the event of any such Borrowing, the Administrative Agent may require the
applicable Borrower to deliver information sufficient to disburse the proceeds of such Borrowing directly to the holders of such commercial paper or a paying agent therefor); and 

        (B)  No
event has occurred and is continuing, or would result from such Credit Extension or, in the case of the making of Advances, from the application of the proceeds
therefrom, that constitutes an Event of Default or Unmatured Event of Default with respect to such Borrower. 

ARTICLE IV

REPRESENTATIONS AND WARRANTIES 

        SECTION
4.01    Representations and Warranties of the Borrowers.    Each Borrower represents and warrants as follows: 

        (a)  Such
Borrower is a corporation, limited liability company or business trust duly organized, validly existing and in good standing under the laws of the jurisdiction of
its incorporation or organization. 

        (b)  The
execution, delivery and performance by such Borrower of this Agreement and the Notes issued by such Borrower are within such Borrower's powers, have been duly
authorized by all necessary organizational action on the part of such Borrower, and do not and will not contravene (i) the articles or certificate of incorporation, by-laws or the
organizational documents of such Borrower, (ii) applicable law or (iii) any contractual or legal restriction binding on or affecting the properties of such Borrower or any of its
Subsidiaries. 

        (c)  No
authorization or approval or other action by, and no notice to or filing with, any governmental authority or regulatory body is required for the due execution,
delivery and performance by such Borrower of this Agreement or the applicable Notes, except an appropriate order or orders of (i) the Securities and Exchange Commission under the Public Utility
Holding Company Act of 1935 and (ii) in the case of ComEd, the Illinois Commerce Commission under the Illinois Public Utilities Act, which order or orders have been duly obtained (or, in the
case of the order or orders referred to in clause (ii), will have been obtained prior to any Credit Extension to ComEd) and are (or, in the case
of the order or orders referred to in clause (ii), will be at the time of any Credit Extension to ComEd) (x) in full force and effect and
(y) sufficient for the purposes hereof. 

        (d)  This
Agreement is, and the applicable Notes when delivered hereunder will be, legal, valid and binding obligations of such Borrowers, enforceable against such Borrower
in accordance with their respective terms, except as the enforceability thereof may be limited by equitable principles or bankruptcy, insolvency, reorganization, moratorium or similar laws affecting
the enforcement of creditors' rights generally. 

(e)    (i)    In
the case of PECO, (A) the consolidated balance sheet of PECO and its Subsidiaries as at December 31, 2001, and the related statements of income and
retained earnings and of cash flows of PECO and its Subsidiaries for the fiscal year then ended, certified by Pricewaterhouse Coopers LLP, and the unaudited consolidated balance sheet of PECO and its
Subsidiaries as at September 30, 2002, and the related unaudited statements of income for the nine-month period then ended, copies of which have been furnished to each Lender,
fairly present in all material respects (subject, in the case of such balance sheet and statement of income for the period ended September 30, 2002, to year-end adjustments) the
consolidated financial condition of PECO and its Subsidiaries as at such dates and the consolidated results of the operations of PECO and its Subsidiaries for the periods ended on such dates, all in
accordance with GAAP; and (B) since December 31, 2001 there has been no Material Adverse Change with respect to PECO. 

25

 

        (ii)  In
the case of ComEd, (A) the consolidated balance sheet of ComEd and its Subsidiaries as at December 31, 2001 and the related consolidated statements of
income, retained earnings and cash flows of ComEd and its Subsidiaries for the fiscal year then ended, certified by Pricewaterhouse Coopers LLP, and the unaudited consolidated balance sheet of ComEd
and its Subsidiaries as of September 30, 2002 and the related unaudited statement of income for the nine-month period then ended, copies of which have been furnished to each Lender,
fairly present in all material respects (subject in the case of such balance sheet and statement of income for the period ended September 30, 2002, to year-end adjustments) the
consolidated financial condition of ComEd and its Subsidiaries as at such dates and the consolidated results of the operations of ComEd and its Subsidiaries for the periods ended on such dates in
accordance with GAAP; and (B) since December 31, 2001 there has been no Material Adverse Change with respect to ComEd. 

        (iii)  In
the case of Exelon, (A) the consolidated balance sheet of Exelon and its Subsidiaries as at December 31, 2001 and the related consolidated statements
of income, retained earnings and cash flows of Exelon for the fiscal year then ended, certified by Pricewaterhouse Coopers LLP, and the unaudited consolidated balance sheet of Exelon and its
Subsidiaries as of September 30, 2002 and the related unaudited statement of income for the nine-month period then ended, copies of which have been furnished to each Lender, fairly
present in all material respects (subject, in the case of such balance sheet and statement of income for the period ended September 30, 2002, to year-end adjustments) the
consolidated financial condition of Exelon and its Subsidiaries as at such dates and the consolidated results of the operations of Exelon and its Subsidiaries for the periods ended on such dates in
accordance with GAAP; and (B) since December 31, 2001 there has been no Material Adverse Change with respect to Exelon. 

        (iv)  In
the case of Genco, (A) the consolidated balance sheet of Genco and its Subsidiaries as at December 31, 2001 and the related consolidated statements of
income, retained earnings and cash flows of Genco for the fiscal year then ended, certified by Pricewaterhouse Coopers LLP, and the unaudited consolidated balance sheet of Genco and its Subsidiaries
as of September 30, 2002 and the related unaudited statement of income for the nine-month period then ended, copies of which have been furnished to each Lender, fairly present in
all material respects (subject, in the case of such balance sheet and statement of income for the period ended September 30, 2002, to year-end adjustments) the consolidated
financial condition of Genco and its Subsidiaries as at such dates and the consolidated results of the operations of Genco and its Subsidiaries for the periods ended on such dates in accordance with
GAAP; and (B) since December 31, 2001 there has been no Material Adverse Change with respect to Genco. 

        (f)    Except
as disclosed in such Borrower's Annual, Quarterly or Current Reports, each as filed with the Securities and Exchange Commission and delivered to the Lenders prior
to the later of the date of execution and delivery of this Agreement or the date of the most recent extension of the Commitment Termination Date pursuant to  Section 2.17, there is no pending or
threatened action, investigation or proceeding affecting such Borrower or any of its Subsidiaries before any
court, governmental agency or arbitrator that may reasonably be anticipated to have a Material Adverse Effect with respect to such Borrower. There is no pending or threatened action or proceeding
against such Borrower or any of its Subsidiaries that purports to affect the legality, validity, binding effect or enforceability against such Borrower of this Agreement or any Note issued by such
Borrower. 

        (g)  No
proceeds of any Advance to such Borrower have been or will be used directly or indirectly in connection with the acquisition of in excess of 5% of any class of equity
securities that is registered pursuant to Section 12 of the Exchange Act or any transaction subject to the requirements of Section 13 or 14 of the Exchange Act. 

        (h)  Such
Borrower is not engaged in the business of extending credit for the purpose of purchasing or carrying margin stock (within the meaning of Regulation U issued
by the Board of 

26

 

Governors of the Federal Reserve System), and no proceeds of any Advance to such Borrower will be used to purchase or carry any margin stock or to extend credit to others for the purpose of
purchasing or carrying any margin stock. Not more than 25% of the value of the assets of such Borrower and its Subsidiaries is represented by margin stock. 

        (i)    Such
Borrower is not an "investment company" or a company "controlled" by an "investment company" within the meaning of the Investment Company Act of 1940, as amended. 

        (j)    During
the twelve consecutive month period prior to the date of the execution and delivery of this Agreement and prior to the date of any borrowing of Advances by such
Borrower or the issuance or modification of any Facility LC for the account of such Borrower, no steps have been taken to terminate any Plan, and no contribution failure by such Borrower or any other
member of the Controlled Group has occurred with respect to any Plan. No condition exists or event or transaction has occurred with respect to any Plan (including any Multiemployer Plan) which might
result in the incurrence by such Borrower or any other member of the Controlled Group of any material liability, fine or penalty. 

ARTICLE V

COVENANTS OF THE BORROWERS 

        SECTION
5.01    Affirmative Covenants.    Each Borrower agrees that so long as any amount payable by such Borrower
hereunder remains unpaid, any Facility LC issued for the account of such Borrower remains outstanding or any Lender has any Commitment to such Borrower hereunder, such Borrower will, and, in the case
of Section 5.01(a), will cause its Principal Subsidiaries to, unless the Majority Lenders shall otherwise consent in writing: 

        (a)  Keep Books; Existence; Maintenance of Properties; Compliance with Laws; Insurance; Taxes. 

          (i)  keep
proper books of record and account, all in accordance with generally accepted accounting principles in the United States, consistently applied; 

        (ii)  subject
to Section 5.02(b), preserve and keep in full force and effect its existence; 

        (iii)  maintain
and preserve all of its properties (except such properties the failure of which to maintain or preserve would not have, individually or in the aggregate, a
Material Adverse Effect on such Borrower) which are used or useful in the conduct of its business in good working order and condition, ordinary wear and tear excepted; 

        (iv)  comply
in all material respects with the requirements of all applicable laws, rules, regulations and orders (including those of any governmental authority and including
with respect to environmental matters) to the extent the failure to so comply, individually or in the aggregate, would have a Material Adverse Effect on such Borrower; 

        (v)  maintain
insurance with responsible and reputable insurance companies or associations, or self-insure, as the case may be, in each case in such amounts and
covering such contingencies, casualties and risks as is customarily carried by or self-insured against by companies engaged in similar businesses and owning similar properties in the same
general areas in which such Borrower and its Principal Subsidiaries operate; 

        (vi)  at
any reasonable time and from time to time, pursuant to prior notice delivered to such Borrower, permit any Lender, or any agent or representative of any thereof, to
examine and, at such Lender's expense, make copies of, and abstracts from the records and books of account of, and visit the properties of, such Borrower and any of its Principal Subsidiaries and to
discuss the affairs, finances and accounts of such Borrower and any of its Principal Subsidiaries with any of 

27

 

their respective officers; provided that any non-public information (which has been identified as such by such Borrower or the applicable
Principal Subsidiary) obtained by any Lender or any of its agents or representatives pursuant to this clause (vi) shall be treated confidentially
by such Person; provided, further, that such Person may disclose such information to any other party to
this Agreement, its examiners, affiliates, outside auditors, counsel or other professional advisors in connection with the Agreement or if otherwise required to do so by law or regulatory process; and 

      (vii)  use
the proceeds of the Advances to it for general purposes of such corporation, limited liability company or business trust, as the case may be (including the
refinancing of its commercial paper and
the making of acquisitions), but in no event for any purpose which would be contrary to Section 4.01(g) or  4.01(h). 

        (b)  Reporting Requirements. Furnish to the Lenders: 

          (i)  as
soon as possible, and in any event within five Business Days after the occurrence of any Event of Default or Unmatured Event of Default with respect to such Borrower
continuing on the date of such statement, a statement of an authorized officer of such Borrower setting forth details of such Event of Default or Unmatured Event of Default and the action which such
Borrower proposes to take with respect thereto; 

        (ii)  as
soon as available and in any event within 60 days after the end of each of the first three quarters of each fiscal year of such Borrower (commencing with the
quarter ending March 31, 2002), a copy of such Borrower's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission with respect to such quarter (or, if
such Borrower is not required to file a Quarterly Report on Form 10-Q, copies of an unaudited consolidated balance sheet of such Borrower as of the end of such quarter and
the related consolidated statement of income of such Borrower for the portion of such Borrower's fiscal year ending on the last day of such quarter, in each case prepared in accordance with GAAP,
subject to the absence of footnotes and to year-end adjustments), together with a certificate of an authorized officer of such Borrower stating that no Event of Default or Unmatured Event
of Default with respect to such Borrower has occurred and is continuing or, if any such Event of Default or Unmatured Event of Default has occurred and is continuing, a statement as to the nature
thereof and the action which such Borrower proposes to take with respect thereto; 

        (iii)  as
soon as available and in any event within 105 days after the end of each fiscal year of such Borrower, a copy of such Borrower's Annual Report on
Form 10-K filed with the Securities and Exchange Commission with respect to such fiscal year (or, if such Borrower is not required to file an Annual Report on
Form 10-K, the consolidated balance sheet of such Borrower and its subsidiaries as of the last day of such fiscal year and the related consolidated statements of income, retained
earnings (if applicable) and cashflows of such Borrower for such fiscal year, certified by Pricewaterhouse Coopers LLP or other certified public accountants of recognized national standing), together
with a certificate of an authorized officer of such Borrower stating that no Event of Default or Unmatured Event of Default with respect to such Borrower has occurred and is continuing or, if any such
Event of Default or Unmatured Event of Default has occurred and is continuing, a statement as to the nature thereof and the action which such Borrower proposes to take with respect thereto; 

        (iv)  concurrently
with the delivery of the annual and quarterly reports referred to in Sections 5.01(b)(ii) and  5.01(b)(iii), a compliance certificate in substantially the
form set forth in Exhibit E, duly
completed and signed by the Chief Financial Officer, Treasurer or an Assistant Treasurer of such Borrower; 

        (v)  except
as otherwise provided in clause (ii) or (iii) above,
promptly after the sending or filing thereof, copies of all reports that such Borrower sends to any of its security holders, and 

28

 

copies of all Reports on Form 10-K, 10-Q or 8-K, and registration statements and prospectuses that such Borrower or any of its Subsidiaries files with the
Securities and Exchange Commission or any national securities exchange (except to the extent that any such registration statement or prospectus relates solely to the issuance of securities pursuant to
employee or dividend reinvestment plans of such Borrower or such Subsidiary); 

        (vi)  promptly
upon becoming aware of the institution of any steps by such Borrower or any other Person to terminate any Plan, or the failure to make a required contribution
to any Plan if such failure is sufficient to give rise to a lien under section 302(f) of ERISA, or the taking of any action with respect to a Plan which could result in the requirement that
such Borrower furnish a bond or other security to the PBGC or such Plan, or the occurrence of any event with respect to any Plan, which could result in the incurrence by such Borrower or any other
member of the Controlled Group of any material liability, fine or penalty, notice thereof and a statement as to the action such Borrower proposes to take with respect thereto; 

      (vii)  promptly
upon becoming aware thereof, notice of any change in the Moody's Rating or the S&P Rating for such Borrower; and 

      (viii)  such
other information respecting the condition, operations, business or prospects, financial or otherwise, of such Borrower or any of its Subsidiaries as any Lender,
through the Administrative Agent, may from time to time reasonably request. 

        (c)  ComEd Clean Up. During the period from the date hereof until the Commitment Termination Date, ComEd shall manage its
borrowings and Facility LC's hereunder so that, for a period of at least one day during any 364-day period, the outstanding principal amount of all Borrowings by ComEd plus the amount of
all unpaid reimbursement obligations under all Facility LCs issued for the account of ComEd shall be zero. 

        SECTION
5.02    Negative Covenants.    Each Borrower agrees that so long as any amount payable by such Borrower
hereunder remains unpaid, any Facility LC issued for the account of such Borrower remains outstanding or any Lender has any Commitment to such Borrower hereunder (except with respect to  Section 5.02(a), which shall be applicable only as of the date hereof and at any time any Advance to such Borrower or Facility LC issued for the
account of such Borrower is outstanding or is to be made or issued, as applicable), such Borrower will not, without the written consent of the Majority Lenders: 

        (a)  Limitation on Liens. Create, incur, assume or suffer to exist, or, in the case of Exelon, permit any of its Material
Subsidiaries to create, incur, assume or suffer to exist, any Lien on its respective property, revenues or assets, whether now owned or hereafter acquired except (i) Liens imposed by law, such
as carriers', warehousemen's and mechanics' Liens and other similar Liens arising in the ordinary course
of business; (ii) Liens on the capital stock of or any other equity interest in any of its Subsidiaries (excluding, in the case of Exelon, the stock of ComEd, PECO, Genco and any holding
company for any of the foregoing) or any such Subsidiary's assets to secure Nonrecourse Indebtedness; (iii) Liens upon or in any property acquired in the ordinary course of business to secure
the purchase price of such property or to secure any obligation incurred solely for the purpose of financing the acquisition of such property; (iv) Liens existing on such property at the time
of its acquisition (other than any such Lien created in contemplation of such acquisition unless permitted by the preceding clause (iii));
(v) Liens on the property, revenues and/or assets of any Person that exist at the time such Person becomes a Subsidiary and the continuation of such Liens in connection with any refinancing or
restructuring of the obligations secured by such Liens; (vi) Liens granted in connection with any financing arrangement for the purchase of nuclear fuel or the financing of pollution control
facilities, limited to the fuel or facilities so purchased or acquired; (vii) Liens arising in connection with sales or transfers of, or financing secured by, accounts receivable or related
contracts; provided that any such sale, transfer or financing shall be on arms' length terms; (viii) Liens granted by a Special Purpose 

29

 

Subsidiary to secure Transitional Funding Instruments of such Special Purpose Subsidiary; (ix) in the case of ComEd, Liens arising under the ComEd Mortgage and "permitted liens" as defined in
the ComEd Mortgage; (x) in the case of PECO, (A) Liens granted under the PECO Mortgage and "excepted encumbrances" as defined in the PECO Mortgage, and (B) Liens securing PECO's
notes collateralized solely by mortgage bonds of PECO issued under the terms of the PECO Mortgage; (xi) in the case of PECO, ComEd and Genco, Liens arising in connection with sale and leaseback
transactions entered into by such Borrower or a Subsidiary thereof, but only to the extent (I) in the case of PECO or ComEd or any Subsidiary thereof, the proceeds received from such sale shall
immediately be applied to retire mortgage bonds of PECO or ComEd issued under the terms of the PECO Mortgage or the ComEd Mortgage, as the case may be, or (II) the aggregate purchase price of
assets sold pursuant to such sale and leaseback transactions where such proceeds are not applied as provided in clause (I) shall not exceed, in
the aggregate for PECO, ComEd, Genco and their Subsidiaries, $1,000,000,000; and (xii) Liens, other than those described in clauses (i) through  (xi)
of this Section 5.02(a), granted by such Borrower or, in the case of Exelon, any of its
Material Subsidiaries in the ordinary course of business securing Debt of such Borrower and, if applicable, such Material Subsidiaries; provided that
the aggregate amount of all Debt secured by such Liens shall not exceed in the aggregate at any one time outstanding (I) in the case of Exelon and its Material Subsidiaries, $100,000,000,
(II) in the case of ComEd, $50,000,000, (III) in the case of Genco, $50,000,000, and (IV) in the case of PECO, $50,000,000. 

        (b)  Mergers and Consolidations; Disposition of Assets. Merge with or into or consolidate with or into, or sell, assign, lease
or otherwise dispose of (whether in one transaction or in a series of transactions) all or substantially all of its assets (whether now owned or hereafter acquired) to any Person or permit any
Principal Subsidiary to do so, except that (i) any of its Principal Subsidiaries may merge with or into or consolidate with or transfer assets to
any other Principal Subsidiary of such Borrower, (ii) any of its Principal Subsidiaries may merge with or into or consolidate with or transfer assets to such Borrower and (iii) such
Borrower or any of its Principal Subsidiaries may merge with or into or consolidate with or transfer assets to any other Person; provided that, in each
case, immediately before and after giving effect thereto, no Event of Default or Unmatured Event of Default with respect to such Borrower shall have occurred and be continuing and (A) in the
case of any such merger, consolidation or transfer of assets to which a Borrower is a party, either (x) such Borrower shall be the surviving entity or (y) the surviving entity shall be
an Eligible Successor and shall have assumed all of the obligations of such Borrower under this Agreement and the Notes issued by such Borrower and the Facility LCs issued for the account of such
Borrower pursuant to a written instrument in form and substance satisfactory to the Administrative Agent, (B) subject to clause (A) above,
in the case of any such merger, consolidation or transfer of assets to which any of its Principal Subsidiaries is a party, a Principal Subsidiary of such
Borrower shall be the surviving entity and (C) subject to clause (A) above, in the case of any such merger, consolidation or transfer of
assets to which a Material Subsidiary of Exelon is a party, a Material Subsidiary of Exelon shall be the surviving entity. 

        (c)  Interest Coverage Ratio.    Permit its Interest Coverage Ratio as of the last day of any fiscal quarter to be
less than (i) in the case of Exelon, 2.65 to 1.0; (ii) in the case of ComEd, 2.25 to 1.0; (ii) in the case of PECO, 2.25 to 1.0; and (iv) in the case of Genco, 3.25
to 1.0. 

        (d)  Continuation of Businesses.    Engage in, or permit any of its Subsidiaries to engage in, any line of business
which is material to Exelon and its Subsidiaries, taken as a whole, other than businesses engaged in by such Borrower and its Subsidiaries as of the date hereof and reasonable extensions thereof. 

        (e)  Capital Structure.    In the case of Exelon, fail at any time to own, free and clear of all Liens, at least 95%
of the issued and outstanding common shares or other common ownership interests of ComEd, 100% of the issued and outstanding common shares or other common ownership interests of PECO and 100% of the
issued and outstanding membership interests of Genco (or, in any such case, 

30

 

of a holding company which owns, free and clear of all Liens, at least 95% of the issued and outstanding shares of common stock of ComEd, 100% of the issued and outstanding common shares or other
common ownership interests of PECO or 100% of the issued and outstanding membership interests of Genco). 

        (f)    Restrictive Agreements.    In the case of Exelon, permit ComEd, Genco or PECO (or any holding company for any
of the foregoing described in the parenthetical clause at the end of Section 5.02(e)) to, directly or indirectly, enter into, incur or permit to
exist any agreement or other arrangement that prohibits, restricts or imposes any condition upon the ability of such entity to declare or pay dividends to Exelon (or, if applicable, to its holding
company), except for existing restrictions on (i) PECO relating to (A) the priority of payments on its subordinated debentures contained in the Indenture dated as of July 1, 1994
between PECO and First Union National Bank, as trustee, as amended and supplemented to the date hereof, and (B) the priority payment of quarterly dividends on its preferred stock contained in
its Amended and Restated Articles of Incorporation as in effect on the date hereof; and (ii) ComEd in connection with the securities described on its consolidated balance sheet as of
December 31, 2001 as "Company-Obligated Mandatorily Redeemable Preferred Securities of Subsidiary Trusts holding solely the Company's Subordinated Debt Securities". 

ARTICLE VI

EVENTS OF DEFAULT 

        SECTION
6.01    Events of Default.    If any of the following events shall occur and be continuing with respect to a
Borrower (any such event an "Event of Default" with respect to such Borrower): 

        (a)  Such
Borrower shall fail to pay (i) any principal of any Advance to such Borrower when the same becomes due and payable, (ii) any Reimbursement Obligation
of such Borrower within one Business Day after the same becomes due and payable or (iii) any interest on any Advance to such Borrower or any other amount payable by such Borrower under this
Agreement or any Note issued by such Borrower within three Business Days after the same becomes due and payable; or 

        (b)  Any
representation or warranty made by such Borrower herein or by such Borrower (or any of its officers) pursuant to the terms of this Agreement shall prove to have been
incorrect or misleading in any material respect when made; or 

        (c)  Such
Borrower shall fail to perform or observe (i) any term, covenant or agreement contained in  Section 5.02, Section 5.01(a)(vii) or 
Section 5.01(b)(i), in each case to the extent applicable to such Borrower, or (ii) any other term, covenant or agreement contained in
this Agreement on its part to be performed or observed if the failure to perform or observe such other term, covenant or agreement shall remain unremedied for 30 days after written notice
thereof shall have been given to such Borrower by the Administrative Agent (which notice shall be given by the Administrative Agent at the written request of any Lender); or 

        (d)  Such
Borrower or any Principal Subsidiary thereof shall fail to pay any principal of or premium or interest on any Debt that is outstanding in a principal amount in
excess of $50,000,000 in the aggregate (but excluding Sithe Project Debt and Debt evidenced by the Notes, Nonrecourse Indebtedness and Transitional Funding Instruments) of such Borrower or such
Principal Subsidiary (as the case may be) when the same becomes due and payable (whether by scheduled maturity, required prepayment, acceleration, demand or otherwise), and such failure shall continue
after the applicable grace period, if any, specified in the agreement or instrument relating to such Debt; or any other event shall occur or condition shall exist under any agreement or instrument
relating to any such Debt and shall continue after the applicable grace period, if any, specified in such agreement or instrument, if the effect of such event or condition is to accelerate, or to
permit the acceleration of, the maturity of such 

31

 

Debt; or any such Debt shall be declared to be due and payable, or required to be prepaid (other than by a regularly scheduled required prepayment), prior to the stated maturity thereof, other than
any acceleration of any Debt secured by equipment leases or fuel leases of such Borrower or a Principal Subsidiary thereof as a result of the occurrence of any event requiring a prepayment (whether or
not characterized as such) thereunder, which prepayment will not result in a Material Adverse Change with respect to such Borrower; or 

        (e)  Such
Borrower or any Principal Subsidiary thereof (other than (i) a Special Purpose Subsidiary and (ii) so long as such entity has no Debt other than Sithe
Project Debt, Sithe Holdings and any Subsidiary thereof) shall generally not pay its debts as such debts become due, or shall admit in writing its inability to pay its debts generally, or shall make a
general assignment for the benefit of creditors; or any proceeding shall be instituted by or against such Borrower or any Principal Subsidiary thereof (other than (i) a Special Purpose
Subsidiary and (ii) so long as such entity has no Debt other than Sithe Project Debt, Sithe Holdings and any Subsidiary thereof) seeking to adjudicate it as bankrupt or insolvent, or seeking
liquidation, winding up, reorganization, arrangement, adjustment, protection, relief, or composition of it or its debts under any law relating to bankruptcy, insolvency or reorganization or relief of
debtors, or seeking the entry of an order for relief or the appointment of a receiver, trustee, custodian or other similar official for it or for any substantial part of its property and, in the case
of any such proceeding instituted against it (but not instituted by it), either such proceeding shall remain undismissed or unstayed for a period of 60 days, or any of the actions sought in
such proceeding (including the entry of an order for relief against, or the appointment of a receiver, trustee, custodian or other similar official for, it or for any substantial part of its
property,) shall occur; or such Borrower or any Principal Subsidiary thereof (other than (i) a Special Purpose Subsidiary and (ii) so long as such entity has no Debt other than Sithe
Project Debt, Sithe Holdings and any Subsidiary thereof) shall take any action to authorize or to consent to any of the actions set forth above in this  Section 6.01(e); or 

        (f)    One
or more judgments or orders for the payment of money in an aggregate amount exceeding $50,000,000 (excluding any such judgments or orders which are fully covered by
insurance, subject to any customary deductible, and under which the applicable insurance carrier has acknowledged such full coverage in writing) shall be rendered against such Borrower or any
Principal Subsidiary thereof (other than, if applicable, Sithe Holdings) and either (i) enforcement proceedings shall have been commenced by any creditor upon such judgment or order or
(ii) there shall be any period of 30 consecutive days during which a stay of enforcement of such judgment or order, by reason of a pending appeal or otherwise, shall not be in effect; or 

        (g)  (i) Any
Reportable Event that the Majority Lenders determine in good faith might constitute grounds for the termination of any Plan or for the appointment by the
appropriate United States District Court of a trustee to administer a Plan shall have occurred and be continuing 30 days after written notice to such effect shall have been given to such
Borrower by the Administrative Agent or (ii) any Plan shall be terminated, or (iii) a Trustee shall be appointed by an appropriate United States District Court to administer any Plan or
(iv) the PBGC shall institute proceedings to terminate any Plan or to appoint a trustee to administer any Plan; provided that on the date of any
event described in clauses (i) through (iv) above, the Unfunded Liabilities of such Plan exceed
$20,000,000; or 

        (h)  In
the case of ComEd, Exelon (or a wholly owned Subsidiary of Exelon) shall fail to own, free and clear of all Liens, at least 95% of its issued and outstanding common
shares or other common ownership interests; 

        (i)    In
the case of PECO, Exelon (or a wholly owned Subsidiary of Exelon) shall fail to own, free and clear of all Liens, 100% of its issued and outstanding common shares or
other common ownership interests; or 

32

 

        (j)    In
the case of Genco, Exelon (or a wholly owned Subsidiary of Exelon) shall fail to own, free and clear of all Liens, 100% of the membership interests of Genco; 

then,
and in any such event, the Administrative Agent shall at the request, or may with the consent, of the Majority Lenders, by notice to such Borrower, (i) declare the respective Commitments
of the Lenders to such Borrower and the commitment of the LC Issuer to issue Facility LCs for the account of such Borrower to be terminated, whereupon the same shall forthwith terminate, and/or
(ii) declare the principal amount outstanding under the Notes issued by such Borrower, all interest thereon and all other amounts payable under this Agreement by such Borrower (including all
contingent LC Obligations) to be forthwith due and payable, whereupon the principal amount outstanding under such Notes, all such interest and all such other amounts shall become and be forthwith due
and payable, without presentment, demand, protest or further notice of any kind, all of which are hereby expressly waived by such Borrower; provided
that in the event of an Event of Default under Section 6.01(e), (A) the obligation of each Lender to make any Advance to such Borrower and
the obligation of the LC Issuer to issue Facility LCs for the account of such Borrower shall automatically be terminated and (B) the principal amount outstanding under the Notes issued by such
Borrower, all interest thereon and all other amounts payable by such Borrower hereunder (including all contingent LC Obligations of such Borrower) shall automatically and immediately become due and
payable, without presentment, demand, protest or any notice of any kind, all of which are hereby expressly waived by such Borrower. 

ARTICLE VII

THE AGENTS 

        SECTION
7.01    Authorization and Action.    Each Lender hereby appoints and authorizes the Administrative Agent to
take such action as administrative agent on its behalf and to exercise such powers under this Agreement as are delegated to the Administrative Agent by the terms hereof, together with such powers as
are reasonably incidental thereto. As to any matters not expressly provided for by this Agreement (including enforcement or collection of the Notes), the Administrative Agent shall not be required to
exercise any discretion or take any action, but shall be required to act or to refrain from acting (and shall be fully protected in so acting or refraining from acting) upon the instructions of the
Majority Lenders, and such instructions shall be binding upon all Lenders and all holders of Notes; provided that the Administrative Agent shall not be
required to take any action which exposes the Administrative Agent to personal liability or which is contrary to this Agreement or applicable law. The Administrative Agent agrees to give to each
Lender prompt notice of each notice given to it by a Borrower pursuant to the terms of this Agreement. 

        SECTION
7.02    Agents' Reliance, Etc.    Neither the Administrative Agent nor any of its directors, officers, agents
or employees shall be liable for any action taken or omitted to be taken by it or them under or in connection with this Agreement, except for its or their respective own gross negligence or willful
misconduct. Without limiting the generality of the foregoing: (i) the Administrative Agent may treat the payee of any Note as the holder thereof until the Administrative Agent receives and
accepts an Assignment and Acceptance entered into by the Lender which is the payee of such Note, as assignor, and an Eligible Assignee, as assignee, as provided in  Section 8.07; (ii) the
Administrative Agent may consult with legal counsel (including counsel for a Borrower), independent public
accountants and other experts selected by it and shall not be liable for any action taken or omitted to be taken in good faith by it in accordance with the advice of such counsel, accountants or
experts; (iii) the Administrative Agent makes no warranty or representation to any Lender and shall not be responsible to any Lender for any statements, warranties or representations (whether
written or oral) made in or in connection with this Agreement; (iv) the Administrative Agent shall not have any duty to ascertain or to inquire as to the performance or observance of any of the
terms, covenants or conditions of this Agreement on the part of any Borrower or to inspect the property (including the 

33

 

books and records) of any Borrower; (v) the Administrative Agent shall not be responsible to any Lender for the due execution, legality, validity, enforceability, genuineness, sufficiency or
value of this Agreement or any other instrument or document furnished pursuant hereto; and (vi) the Administrative Agent shall not incur any liability under or in respect of this Agreement by
acting upon any notice, consent, certificate or other instrument or writing (which may be by telecopier, telegram, cable or telex) believed by it to be genuine and signed or sent by the proper party
or parties. 

        SECTION
7.03    Agents and Affiliates.    With respect to its Commitment, Advances and Notes, Bank One shall have the
same rights and powers under this Agreement as any other Lender and may exercise the same as though it were not an Agent; and the term "Lender" or "Lenders" shall, unless otherwise expressly
indicated, include Bank One in its individual capacity. Bank One and its affiliates may accept deposits from, lend money to, act as trustee under indentures of, and generally engage in any kind of
business with, any Borrower, any subsidiary of any Borrower and any Person who may do business with or own securities of any Borrower or any such subsidiary, all as if it were not an Agent and without
any duty to account therefor to the Lenders. 

        SECTION
7.04    Lender Credit Decision.    Each Lender acknowledges that it has, independently and without reliance
upon the Administrative Agent or any other Lender and based on the financial statements referred to in Section 4.01(e) and such other documents
and information as it has deemed appropriate, made its own credit analysis and decision to enter into this Agreement. Each Lender also acknowledges that it will, independently and without reliance
upon the Administrative Agent or any other Lender and based on such documents and information as it shall deem appropriate at the time, continue to make its own credit decisions in taking or not
taking action under this Agreement. 

        SECTION
7.05    Indemnification.    The Lenders agree to indemnify each Agent (to the extent not reimbursed by a
Borrower), ratably according to their respective Pro Rata Shares, from and against any and all liabilities, obligations, losses, damages, penalties, actions, judgments, suits, costs, expenses or
disbursements of any kind or nature whatsoever which may be imposed on, incurred by, or asserted against any such Agent in any way relating to or arising out of this Agreement or any action taken or
omitted by any such Agent under this Agreement, provided that no Lender shall be liable for any portion of such liabilities, obligations, losses,
damages, penalties, actions, judgments, suits, costs, expenses or disbursements resulting from such Agent's gross negligence or willful misconduct. Without limiting the foregoing, each Lender agrees
to reimburse each such Agent promptly upon demand for its Pro Rata Share of any out-of-pocket expenses (including reasonable counsel fees) incurred by such Agent in connection
with the preparation, execution, delivery, administration, modification, amendment or enforcement (whether through negotiations, legal proceedings or otherwise) of, or legal advice in respect of
rights or responsibilities under, this Agreement, to the extent that such expenses are reimbursable by a Borrower but for which such Agent is not reimbursed by such Borrower. 

        SECTION
7.06    Successor Administrative Agent.    The Administrative Agent may resign at any time by giving written
notice thereof to the Lenders and the Borrowers and may be removed at any time with or without cause by the Majority Lenders. Upon any such resignation or removal, the Majority Lenders shall have the
right to appoint a successor Administrative Agent. If no successor Administrative Agent shall have been so appointed by the Majority Lenders, and shall have accepted such appointment, within
30 days after the retiring Administrative Agent's giving of notice of resignation or the Majority Lenders' removal of the retiring Administrative Agent, then the retiring Administrative Agent
may, on behalf of the Lenders, appoint a successor Administrative Agent, which shall be a commercial bank described in clause (i) or  (ii) of the
definition of "Eligible Assignee" and having a combined capital and surplus of at least $150,000,000. Upon the acceptance of any appointment
as Administrative Agent hereunder by a successor Administrative Agent, such successor Administrative Agent shall thereupon succeed to and become vested with all the rights, powers, privileges and
duties of the retiring Administrative Agent, and the retiring Administrative Agent shall be discharged from its duties and obligations under this Agreement. After any retiring Administrative Agent's
resignation or removal hereunder as Administrative Agent, the provisions of this Article VII shall inure to its benefit as to any actions taken
or omitted to be taken by it while it was Administrative Agent under this Agreement. Notwithstanding the foregoing, if no Event of Default or Unmatured Event of Default shall have occurred and be
continuing, then no successor Administrative Agent shall be appointed under this Section 7.06 without the prior written consent of the Borrowers,
which consent shall not be unreasonably withheld or delayed. 

34

   
        SECTION 7.07    Co-Documentation Agents, Co-Syndication Agents and Lead Arranger.    The
titles "Co-Documentation Agent," "Co-Syndication Agent" and "Lead Arranger and Sole Book Runner" are purely honorific, and no Person designated as a
"Co-Documentation Agent," a "Co-Syndication Agent" or the "Lead Arranger and Sole Book Runner" shall have any duties or responsibilities in such capacity. 

ARTICLE VIII

MISCELLANEOUS 

        SECTION
8.01    Amendments, Etc.    No amendment or waiver of any provision of this Agreement or the Notes, nor
consent to any departure by any Borrower therefrom, shall in any event be effective unless the same shall be in writing and signed by the Majority Lenders and, in the case of an amendment, the
Borrowers, and then such waiver or consent shall be effective only in the specific instance and for the specific purpose for which given; provided that
no amendment, waiver or consent shall, unless in writing and signed by all the Lenders (other than any Lender that is a Borrower or an Affiliate of a Borrower), do any of the following:
(a) waive any of the conditions specified in Section 3.01 or 3.02, (b) increase or
extend the Commitments of the Lenders, increase any Borrower's Sublimit to an amount greater than the amount specified in Section 2.04(c)(ii)(B)
or subject the Lenders to any additional obligations, (c) reduce the principal of, or interest on, the Notes or any fees or other amounts payable hereunder, (d) postpone any date fixed
for any payment of principal of, or interest on, the Notes or any fees or other amounts payable hereunder, (e) change the percentage of the Commitments or of the aggregate unpaid principal
amount of the Notes, or the number of Lenders, that shall be required for the Lenders or any of them to take any action hereunder, or (f) amend this  Section 8.01; provided, further, that
(i) no amendment, waiver or consent shall, unless in writing and signed by the Administrative Agent, in addition to the Lenders required above to take such action, affect the rights or duties
of the Administrative Agent under this Agreement or any Note; and (ii) no amendment, waiver or consent shall, unless in writing and signed by the LC Issuer, in addition to the Lenders required
above to take such action, affect the rights or duties of the LC Issuer under this Agreement. 

        SECTION
8.02    Notices, Etc.    All notices and other communications provided for hereunder shall be in writing
(including telecopier, telegraphic, telex or cable communication) and mailed, telecopied, telegraphed, telexed, cabled or delivered, if to any Borrower, at 10 S. Dearborn, 37th Floor, Chicago, IL
60603, Attention: J. Barry Mitchell, Telecopy: (312) 394-5440; if to any Lender listed on the signature pages hereof, at its Domestic Lending Office specified opposite its name on  Schedule I hereto; if to any
other Lender, at its Domestic Lending Office specified in the Assignment and Acceptance pursuant to which it became a Lender; and if to the Administrative Agent, at its address at 1 Bank One Plaza,
Mail Suite 0634, 1FPN-10, Chicago, Illinois 60670, Attention: Mr. Ron Cromey, Telecopy: (312) 732-4840 or, as to each party, at such other address as shall be
designated by such party in a written notice to the other parties. All such notices and communications shall, when mailed, telecopied, telegraphed, telexed or cabled, be effective when deposited in
the mails, telecopied, delivered to the telegraph company, confirmed by telex answerback or delivered to the cable company, respectively, except that notices and communications to the Administrative
Agent pursuant to Article II or VII shall not be effective until received by the Administrative
Agent. 

        SECTION
8.03    No Waiver; Remedies.    No failure on the part of any Lender, the LC Issuer or the Administrative
Agent to exercise, and no delay in exercising, any right hereunder or under any Note shall operate as a waiver thereof; nor shall any single or partial exercise of any such right preclude any other or
further exercise thereof or the exercise of any other right. The remedies herein provided are cumulative and not exclusive of any remedies provided by law. 

35

 

        SECTION
8.04    Costs and Expenses; Indemnification.    (a) Each Borrower severally agrees to pay on demand all
costs and expenses incurred by the Administrative Agent, the LC Issuer and the Lead Arranger in connection with the preparation, execution, delivery, administration, syndication, modification and
amendment of this Agreement, the Notes and the other documents to be delivered hereunder, including the reasonable fees, internal charges and out-of-pocket expenses of counsel
(including in-house counsel) for the Administrative Agent, the LC issuer and the Lead Arranger with respect thereto and with respect to advising the Administrative Agent, the LC Issuer and
the Lead Arranger as to their respective rights and responsibilities under this Agreement, in each case to the extent attributable to such Borrower; it being
understood that to the extent any such costs and expenses are not attributable to a particular Borrower, each Borrower shall pay its proportionate share thereof according to
the Borrowers' respective Sublimits at the time such costs and expenses were incurred. Each Borrower further severally agrees to pay on demand all costs and expenses, if any (including counsel fees
and expenses of outside counsel and of internal counsel), incurred by the Agent, the LC Issuer or any Lender in connection with the collection and enforcement (whether through negotiations, legal
proceedings or otherwise) of such Borrower's obligations this Agreement, the Notes issued by such Borrower and the other documents to be delivered by such Borrower hereunder, including reasonable
counsel fees and expenses in connection with the enforcement of rights under this Section 8.04(a), in each case to the extent attributable to
such Borrower; it being understood that to the extent any such costs and expenses are not attributable to a particular Borrower, each Borrower shall pay
its proportionate share thereof according to the Borrowers' respective Sublimits at the time such costs and expenses were incurred. 

        (b)  If
any payment of principal of, or any conversion of, any Eurodollar Rate Advance is made other than on the last day of the Interest Period for such Advance, as a result
of a payment or conversion pursuant to Section 2.09 or 2.12 or acceleration of the maturity of
the Notes pursuant to Section 6.01 or for any other reason, the applicable Borrower shall, upon demand by any Lender (with a copy of such demand
to the Administrative Agent), pay to the Administrative Agent for the account of such Lender any amount required to compensate such Lender for any additional losses, costs or expenses which it
may reasonably incur as a result of such payment or conversion, including any loss, cost or expense incurred by reason of the liquidation or reemployment of deposits or other funds acquired by any
Lender to fund or maintain such Advance. 

        (c)  Each
Borrower hereby severally agrees to indemnify and hold each Lender, the LC Issuer, each Agent and each of their respective Affiliates, officers, directors and
employees (each, an "Indemnified Person") harmless from and against any and all claims, damages, losses, liabilities, costs or expenses (including
reasonable attorney's fees and expenses, whether or not such Indemnified Person is named as a party to any proceeding or is otherwise subjected to judicial or legal process arising from any such
proceeding) that any of them may pay or incur arising out of or relating to this Agreement, the Notes or the transactions contemplated thereby, or the use by such Borrowers or any of its Subsidiaries
of the proceeds of any Advance to such Borrower, in each case to the extent such claims damages, losses, liabilities, costs or expenses are attributable to such Borrower, it
being understood that to the extent any such claims, damages, losses, liabilities, costs or expenses are not attributable to a particular Borrower, each Borrower shall pay its
proportionate share thereof according to the Borrowers' respective Sublimits at the time such claims, damages, losses, liabilities, costs or expenses arose;  provided that no Borrower shall be liable for
any portion of such claims, damages, losses, liabilities, costs or expenses resulting from such
Indemnified Person's gross negligence or willful misconduct. Each Borrower's obligations under this Section 8.04(c) shall survive the repayment
of all amounts owing by such Borrower to the Lenders and the Administrative Agent under this Agreement and the Notes issued by such Borrower and the termination of the Commitments to such Borrower. If
and to the extent that the obligations of a Borrower under this Section 8.04(c) are unenforceable for any reason, such Borrower agrees to make the maximum contribution to the payment and
satisfaction thereof which is permissible under applicable law. 

36

 

        SECTION
8.05    Right of Set-off.    Upon (i) the occurrence and during the continuance of any
Event of Default with respect to a Borrower and (ii) the making of the request or the granting of the consent specified by Section 6.01 to
authorize the Administrative Agent to declare the Notes issued by such Borrower due and payable pursuant to the provisions of Section 6.01, each
Lender is hereby authorized at any time and from time to time, to the fullest extent permitted by law, to set off and apply any and all deposits (general or special, time or demand, provisional or
final) at any time held and other indebtedness at any time owing by such Lender to or for the credit or the account of such Borrower against any and all of the obligations of such Borrower now or
hereafter existing under this Agreement and any Note of such Borrower held by such Lender, whether or not such Lender shall have made any demand under this Agreement or such Note and although such
obligations may be unmatured. Each Lender agrees promptly to notify the applicable Borrower after any such set-off and application made by such Lender,  provided that the failure to give such notice
shall not affect the validity of such set-off and application. The rights of each Lender under
this Section 8.05 are in addition to other rights and remedies (including other rights of set-off) that such Lender may have. 

        SECTION
8.06    Binding Effect.    This Agreement shall become effective when counterparts hereof shall have been
executed by the Borrowers and the Agents and when the Administrative Agent shall have been notified by each Lender that such Lender has executed a counterpart hereof and thereafter shall be binding
upon and inure to the benefit of the Borrowers, the Agents and each Lender and their
respective successors and assigns, provided that (except as permitted by Section 5.02(b)(iii)) no
Borrower shall have the right to assign rights hereunder or any interest herein without the prior written consent of all Lenders. 

        SECTION
8.07    Assignments and Participations.    (a) Each Lender may, with the prior written consent of
Exelon, the LC Issuer and the Administrative Agent (which consents shall not be unreasonably withheld or delayed), and if demanded by a Borrower pursuant to  Section 8.07(g) shall to the extent
required by such Section, assign to one or more banks or other entities all or a portion of its rights and
obligations under this Agreement (including all or a portion of its Commitment, the Advances owing to it, its participation in Facility LCs and the Note or Notes held by it);  provided that (i) each
such assignment shall be of a constant, and not a varying, percentage of all of the assigning Lender's rights and
obligations under this Agreement, (ii) the Commitment Amount of the assigning Lender being assigned pursuant to each such assignment (determined as of the date of the Assignment and Acceptance
with respect to such assignment) shall in no event be less than $10,000,000 or, if less, the entire amount of such Lender's Commitment, and shall be an integral multiple of $1,000,000 or such Lender's
entire Commitment, (iii) each such assignment shall be to an Eligible Assignee, (iv) the parties to each such assignment shall execute and deliver to the Administrative Agent, for its
acceptance and recording in the Register, an Assignment and Acceptance, together with any Note or Notes subject to such assignment and a processing and recordation fee of $4,000 (which shall be
payable by one or more of the parties to the Assignment and Acceptance, and not by any Borrower, and shall not be payable if the assignee is a Federal Reserve Bank), and (v) the consent of
Exelon shall not be required after the occurrence and during the continuance of any Event of Default. Upon such execution, delivery, acceptance and recording, from and after the effective date
specified in each Assignment and Acceptance, (x) the assignee thereunder shall be a party hereto and, to the extent that rights and obligations hereunder have been assigned to it pursuant to
such Assignment and Acceptance, have the rights and obligations of a Lender hereunder and (y) the Lender assignor thereunder shall, to the extent that rights and obligations hereunder have been
assigned by it pursuant to such Assignment and Acceptance, relinquish its rights and be released from its obligations under this Agreement and, in the case of an Assignment and Acceptance covering all
or the remaining portion of an assigning Lender's rights and obligations under this Agreement, such Lender shall cease to be a party hereto (although an assigning Lender shall continue to be entitled
to indemnification pursuant to Section 8.04(c)). Notwithstanding anything contained in this  Section 8.07(a) to the contrary, (A) the consent
of Exelon, the LC Issuer and the Administrative Agent shall not be required with respect
to 

37

 

any assignment by any Lender to an Affiliate of such Lender or to another Lender and (B) any Lender may at any time, without the consent of Exelon, the LC Issuer or the Administrative Agent,
and without any requirement to have an Assignment and Acceptance executed, assign all or any part of its rights under this Agreement and its Notes to a Federal Reserve Bank,  provided that no such
assignment shall release the transferor Lender from any of its obligations hereunder. 

        (b)  By
executing and delivering an Assignment and Acceptance, the Lender assignor thereunder and the assignee thereunder confirm to and agree with each other and the other
parties hereto as follows: (i) other than as provided in such Assignment and Acceptance, such assigning Lender makes no representation or warranty and assumes no responsibility with respect to
any statements, warranties or representations made in or in connection with this Agreement or the execution, legality, validity, enforceability, genuineness, sufficiency or value of this Agreement or
any other instrument or document furnished pursuant hereto; (ii) such assigning Lender makes no representation or warranty and assumes no responsibility with respect to the financial condition
of any Borrower or the performance or
observance by any Borrower of any of its obligations under this Agreement or any other instrument or document furnished pursuant hereto; (iii) such assignee confirms that it has received a copy
of this Agreement, together with copies of the financial statements referred to in Section 4.01(e) and such other documents and information as it
has deemed appropriate to make its own credit analysis and decision to enter into such Assignment and Acceptance; (iv) such assignee will, independently and without reliance upon the
Administrative Agent, such assigning Lender or any other Lender and based on such documents and information as it shall deem appropriate at the time, continue to make its own credit decisions in
taking or not taking action under this Agreement; (v) such assignee confirms that it is an Eligible Assignee; (vi) such assignee appoints and authorizes the Administrative Agent to take
such action as agent on its behalf and to exercise such powers under this Agreement as are delegated to the Administrative Agent by the terms hereof, together with such powers as are reasonably
incidental thereto; and (vii) such assignee agrees that it will perform in accordance with their terms all of the obligations which by the terms of this Agreement are required to be performed
by it as a Lender. 

        (c)  The
Administrative Agent shall maintain at its address referred to in Section 8.02 a copy of each Assignment and
Acceptance delivered to and accepted by it and a register for the recordation of the names and addresses of the Lenders and the Commitment Amount of, and principal amount of the Advances owing by each
Borrower to, each Lender from time to time (the "Register"). The entries in the Register shall be conclusive and binding for all purposes, absent
manifest error, and each Borrower, the Administrative Agent and the Lenders may treat each Person whose name is recorded in the Register as a Lender hereunder for all purposes of this Agreement. The
Register shall be available for inspection by any Borrower or any Lender at any reasonable time and from time to time upon reasonable prior notice. 

        (d)  Upon
its receipt of an Assignment and Acceptance executed by an assigning Lender and an assignee representing that it is an Eligible Assignee, together with all Notes
subject to such assignment, the Administrative Agent shall, if such Assignment and Acceptance has been completed and is in substantially the form of  Exhibit C, (i) accept such Assignment and
Acceptance, (ii) record the information contained therein in the Register and
(iii) give prompt notice thereof to the Borrowers. Within five Business Days after its receipt of such notice, each Borrower, at its own expense, shall execute and deliver to the Administrative
Agent, in exchange for the surrendered Note issued by such Borrower a new Note to the order of such Eligible Assignee in an amount equal to the product of the Commitment Amount assumed by such
Eligible Assignee pursuant to such Assignment and Acceptance multiplied by the percentage which such Borrower's Sublimit is of the aggregate amount of the Commitment Amounts (the
"Sublimit Percentage") and, if the assigning Lender has retained a Commitment hereunder, a new Note to the order of the assigning Lender in an amount
equal to the product of the Commitment Amount of such assigning Lender after giving effect to such assignment 

38

 

multiplied by the Sublimit Percentage. Each such new Note or Notes shall be dated the effective date of such Assignment and Acceptance and shall otherwise be in substantially the form of  Exhibit A.

        (e)  Each
Lender may sell participations to one or more banks or other entities (each, a "Participant") in or to all or a
portion of its rights and/or obligations under this Agreement (including all or a portion of its Commitment, the Advances owing to it, its participation in Facility LCs and the Note or Notes held by
it); provided that (i) such Lender's obligations under this Agreement shall remain unchanged, (ii) such Lender shall remain solely
responsible to the other parties hereto for the performance of such
obligations, (iii) such Lender shall remain the holder of any such Note for all purposes of this Agreement, (iv) the Borrowers, the Administrative Agent and the other Lenders shall
continue to deal solely and directly with such Lender in connection with such Lender's rights and obligations under this Agreement and (v) such Lender shall retain the sole right to approve,
without the consent of any Participant, any amendment, modification or waiver of any provision of this Agreement or the Note or Notes held by such Lender, other than any such amendment, modification
or waiver with respect to any Advance or Commitment in which such Participant has an interest that forgives principal, interest or fees or reduces the interest rate or fees payable with respect to any
such Advance or Commitment, postpones any date fixed for any regularly scheduled payment of principal of, or interest or fees on, any such Advance or Commitment, extends any Commitment, releases any
guarantor of any such Advance or releases any substantial portion of collateral, if any, securing any such Advance. 

        (f)    Any
Lender may, in connection with any assignment or participation or proposed assignment or participation pursuant to this  Section 8.07, disclose to the assignee or participant or proposed assignee or
participant, any information relating to the Borrowers furnished to
such Lender by or on behalf of the Borrowers; provided that, prior to any such disclosure, the assignee or participant or proposed assignee or
participant shall agree to preserve the confidentiality of any confidential information relating to the Borrowers received by it from such Lender (subject to customary exceptions regarding regulatory
requirements, compliance with legal process and other requirements of law). 

        (g)  If
(i) any Lender shall make demand for payment under Section 2.11(a),  2.11(b) or 2.14,
(ii) shall deliver any notice to the Administrative Agent pursuant to  Section 2.12 resulting in the suspension of certain obligations of the Lenders with respect to Eurodollar Rate Advances or
(iii) shall
fail to consent to, or shall revoke its consent to, an extension of the scheduled Commitment Termination Date pursuant to Section 2.17, then (in
the case of clause (i)) within 60 days after such demand (if, but only if, such payment demanded under Section 2.11(a),  2.11(b) or
2.14 has been made by the applicable Borrower), or (in the case of clause (ii)) within
60 days after such notice (if such suspension is still in effect), or (in the case of clause (iii)) no later than five days prior to the then effective scheduled Commitment Termination
Date, as the case may be, the Borrowers may demand that such Lender assign in accordance with this Section 8.07 to one or more Eligible Assignees
designated by the Borrowers and reasonably acceptable to the Administrative Agent all (but not less than all) of such Lender's Commitment, the Advances owing to it and its participation in the
Facility LCs within the next succeeding 30 days (in the case of clause (i) or  clause (ii)), or within the next succeeding five days (in the
case of clause (iii)). If
any such Eligible Assignee designated by the Borrowers shall fail to consummate such assignment on terms acceptable to such Lender, or if the Borrowers shall fail to designate any such Eligible
Assignee for all of such Lender's Commitment, Advances and participation in Facility LCs, then such Lender may (but shall not be required to) assign such Commitment and Advances to any other Eligible
Assignee in accordance with this Section 8.07 during such period. 

        (h)  Notwithstanding
anything to the contrary contained herein, any Lender (a "Granting Bank") may grant to a special purpose
funding vehicle (an "SPC"), identified as such in writing from time to time by the Granting Bank to the Administrative Agent and the Borrowers, the
option to provide to any Borrower all or any part of any Advance that such Granting Bank would otherwise be obligated to 

39

 

make to such Borrower pursuant to this Agreement; provided that (i) nothing herein shall constitute a commitment by any SPC to make any Advance,
(ii) if an SPC elects not to exercise such option or
otherwise fails to provide all or any part of such Advance, the Granting Bank shall be obligated to make such Advance pursuant to the terms hereof. The making of an Advance by an SPC hereunder shall
utilize the Commitment of the Granting Bank to the same extent, and as if, such Advance were made by such Granting Bank. Each party hereto hereby agrees that no SPC shall be liable for any indemnity
or similar payment obligation under this Agreement (all liability for which shall remain with the Granting Bank). In furtherance of the foregoing, each party hereto hereby agrees (which agreement
shall survive the termination of this Agreement) that, prior to the date that is one year and one day after the payment in full of all outstanding commercial paper or other senior indebtedness of any
SPC, it will not institute against, or join any other person in instituting against, such SPC any bankruptcy, reorganization, arrangement, insolvency or liquidation proceedings under the laws of the
United States or any State thereof. In addition, notwithstanding anything to the contrary contained in this Section 8.07, any SPC may
(i) with notice to, but without the prior written consent of, the Borrower and the Administrative Agent and without paying any processing fee therefor, assign all or a portion of its interests
in any Advances to the Granting Bank or to any financial institutions (consented to by such Borrower and Administrative Agent, neither of which consents shall be unreasonably withheld or delayed)
providing liquidity and/or credit support to or for the account of such SPC to support the funding or maintenance of Advances and (ii) disclose on a confidential basis any
non-public information relating to its Advances to any rating agency, commercial paper dealer or provider of any surety, guarantee or credit or liquidity enhancement to such SPC. This  Section 8.07(h) may not be amended in any manner which adversely affects a Granting Bank or an SPC without the written consent of such Granting
Bank or SPC. 

        SECTION
8.08    Governing Law.    THIS AGREEMENT AND THE NOTES SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH,
THE LAWS OF THE COMMONWEALTH OF PENNSYLVANIA. 

        SECTION
8.09    Consent to Jurisdiction; Certain Waivers.    (a) THE BORROWERS HEREBY IRREVOCABLY SUBMIT TO THE
NON-EXCLUSIVE JURISDICTION OF THE COURTS OF THE COMMONWEALTH OF PENNSYLVANIA AND ANY UNITED STATES DISTRICT COURT SITTING IN THE COMMONWEALTH OF PENNSYLVANIA IN ANY ACTION OR PROCEEDING
ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE NOTES AND THE BORROWERS HEREBY IRREVOCABLY AGREE THAT ALL CLAIMS IN RESPECT OF SUCH ACTION OR PROCEEDING MAY BE HEARD AND DETERMINED IN ANY SUCH
COURT AND IRREVOCABLY WAIVE ANY OBJECTION THEY MAY NOW OR HEREAFTER HAVE AS TO THE VENUE OF ANY SUCH SUIT, ACTION OR PROCEEDING BROUGHT IN SUCH A COURT OR THAT SUCH COURT IS AN INCONVENIENT FORUM.
NOTHING HEREIN SHALL LIMIT THE RIGHT OF THE ADMINISTRATIVE AGENT OR ANY LENDER TO BRING PROCEEDINGS AGAINST ANY BORROWER IN THE COURTS OF ANY OTHER JURISDICTION. 

        (b)  EXCEPT
AS PROHIBITED BY LAW, EACH PARTY HERETO HEREBY WAIVES ANY RIGHT IT MAY HAVE TO CLAIM OR RECOVER IN ANY LITIGATION ARISING OUT OF OR RELATING TO THIS AGREEMENT OR
THE NOTES ANY SPECIAL, EXEMPLARY, PUNITIVE OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES OTHER THAN, OR IN ADDITION TO, ACTUAL DAMAGES. 

        SECTION
8.10    Execution in Counterparts; Integration.    This Agreement may be executed in any number of
counterparts and by different parties hereto in separate counterparts, each of which when so executed shall be deemed to be an original and all of which taken together shall constitute one and the
same agreement. This Agreement constitutes the entire agreement and understanding among the 

40

 

parties hereto and supersedes all prior and contemporaneous agreements and understandings, oral or written, relating to the subject matter hereof. 

        SECTION
8.11    Liability Several.    No Borrower shall be liable for the obligations of any other Borrower hereunder. 

        SECTION
8.12    Termination of Existing Agreement; Existing Letters of Credit.    The Borrowers and the Lenders which
are parties to the Existing Agreement (which Lenders constitute the "Majority Lenders" as defined in the Existing Agreement) and Bank One, as Administrative Agent under the Existing Agreement, agree
that, concurrently with the making of the initial Advances hereunder, (a) the commitments under the Existing Agreement shall terminate and be of no further force or effect (without regard to
any requirement in Section 2.04 of the Existing Agreement for prior notice of termination of the commitments thereunder) and (b) the "Facility LCs" issued under the Existing Agreement
for the account of each Borrower (the "Existing Letters of Credit") shall be deemed to be Facility LCs hereunder. 

[Remainder
of the page intentionally left blank] 

41

        IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed by their respective officers thereunto duly authorized, as of the date first above written. 

	

 	
 	
EXELON CORPORATION
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:
	

 	
 	
COMMONWEALTH EDISON COMPANY
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:
	

 	
 	
PECO ENERGY COMPANY
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:
	

 	
 	
EXELON GENERATION COMPANY LLC
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

THE LENDERS  

Commitment Amount  

	$122,000,000	 	BANK ONE, NA (Main Office Chicago), as

Administrative Agent, as LC Issuer and as

a Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name: Kenneth J. Bauer

Title: Authorized Agent

Commitment Amount  

	$121,000,000	 	CITIBANK, N.A., as Co-Syndication Agent and as

a Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

Commitment Amount  

	$121,000,000	 	WACHOVIA BANK N.A., as Co-Syndication

Agent and as a Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

Commitment Amount  

	$121,000,000	 	ABN AMRO BANK, N.V., as Co-Documentation

Agent and as a Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

Commitment Amount  

	$121,000,000	 	DRESDNER BANK AG, NEW YORK AND

GRAND CAYMAN BRANCHES, as Co-

Documentation Agent and as a Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

Commitment Amount  

	$101,000,000	 	BARCLAYS BANK PLC, as a Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

Commitment Amount  

	$101,000,000	 	JPMORGAN CHASE BANK, as a Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

Commitment Amount  

	$101,000,000	 	MORGAN STANLEY BANK, as a Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

Commitment Amount  

	$101,000,000	 	BNP PARIBAS, as a Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

Commitment Amount  

	$80,000,000	 	MERRILL LYNCH CAPITAL CORP., as a

Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

Commitment Amount  

	$80,000,000	 	THE BANK OF NOVA SCOTIA, as a Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

Commitment Amount  

	$75,000,000	 	THE NORTHERN TRUST COMPANY, as a

Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

Commitment Amount  

	$75,000,000	 	MELLON BANK, N.A. as a Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

Commitment Amount  

	$70,000,000	 	CREDIT SUISSE FIRST BOSTON, as a Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

Commitment Amount  

	$60,000,000	 	THE BANK OF NEW YORK, as a Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

Commitment Amount  

	$50,000,000	 	AUSTRALIA AND NEW ZEALAND

BANKING GROUP LIMITED, as a Lender
	

 	
 	

By:	

 
	 	 	 	    
 Name:

Title:

   SCHEDULE I  

        Credit Agreement dated as of November 22, 2002, among Exelon Corporation, Commonwealth Edison Company, Exelon Generation Company, LLC and PECO Energy
Company, as Borrowers, various financial institutions, as Lenders, Bank One, NA, as Administrative Agent, ABN AMRO Bank, N.V. and DRESDNER BANK AG, NEW YORK AND GRAND CAYMAN BRANCHES, as
Co-Documentation Agents, and Citibank, N.A. and First Union National Bank, as Co-Syndication Agents. 

	Name of Lender
 
	 	Domestic Lending Office
	 	Eurodollar Lending Office

	

Bank One, NA	
 	

1 Bank One Plaza

Mail Suite 0634, 1FNP-10

Chicago, IL 60670

Attn: Gwendolyn Watson

Phone: (312) 732-4509

Fax: (312) 732-4840	
 	

Same
	

Citibank, N.A.	
 	

388 Greenwich St., 21st Floor

New York, NY 10013

Attn: Robert Harrity 9

Phone: (212) 816-8554

Fax: (212) 816-8098	
 	

[Same]
	

Wachovia Bank, N.A.	
 	

301 South College Street

Charlotte, NC 28288

Attn: Brian D. Smith

Phone: (704) 715-9941

Fax: (704) 374-2570	
 	

[Same]
	

ABN AMRO Bank N.V.	
 	

208 South LaSalle Street

Suite 1500

Chicago, IL 60604

Attn: Credit Administration

Phone: (312) 992-5110

Fax: (312) 992-5111

with a copy to:

135 South LaSalle Street

Suite 710

Chicago, IL 60603

Attn: Brendan Korb

Phone: (312) 904-1760

Fax: (312) 904-6387	
 	

[Same]
	

Dresdner Bank AG, New York

and Grand Cayman Branches	
 	

75 Wall Street, 25th Floor

New York, NY 10005

Attn: Fred C. Thurston,

Vice President

Phone: (212) 429-2029

Fax: (212)429-2192	
 	

[Same]
	
 	
 	

 	
 	

 

I-1

 

	

Barclays Bank PLC	
 	

200 Park Avenue

New York, NY 10166

Attn: Sydney Dennis

Phone: (212) 412-2470

Fax: (212) 412-2441	
 	

[Same]
	

JPMorgan Chase Bank	
 	

270 Park Avenue

New York, NY 10017

Attn: Michael J. DeForge

Phone: (212) 270-1656

Fax: (212) 270-1063	
 	

[Same]
	

Morgan Stanley Bank	
 	

750 Seventh Avenue

11th Floor

New York, NY 10020

Attn: Joseph DiTomaso

Phone: (212) 762-2320

Fax: (212) 762-0346	
 	

[Same]
	

BNP Paribas	
 	

[    ]	
 	

[    ]
	

Merrill Lynch	
 	

4 World Financial Center

7th Floor

New York, NY 10080

Attn: Carol Feeley

Phone: (212) 449-8414

Fax: (212) 738-1649

with a copy to:

15 West South Temple

3rd Floor

Salt Lake City, UT 84101

Attn: Document Compliance

Phone: (801) 526-8300

Fax: (801) 531-7470	
 	

[Same]
	

The Bank of Nova Scotia	
 	

[    ]	
 	

[    ]
	

The Northern Trust Company	
 	

50 South LaSalle, 11th Floor

Chicago, IL 60675

Attn: Eric Dybing

Phone: (312) 557-4063

Fax: (312) 444-5055	
 	

[Same]
	

Mellon Bank, N.A.	
 	

525 William Penn Place 153-1203

Pittsburgh, PA 15259

Attn: Brenda Leierzapf

Phone: (412) 234-8161

Fax: (412) 209-6146	
 	

[Same]
	
 	
 	

 	
 	

 

I-2

 

	

Credit Suisse First Boston	
 	

[    ]	
 	

[    ]
	

The Bank of New York	
 	

One Wall Street

New York, NY 10286

Attn: Kathy D'Elena

Phone: (212) 635-6691

Fax: (212) 635-7923	
 	

[Same]
	

Australia and New Zealand

Banking Group Limited	
 	

1177 Avenue of the Americas

New York, NY 10036

Attn: Geoffrey Pack

Phone: (212) 801-9736

Fax: (212) 556-4837	
 	

[Same]

I-3

   SCHEDULE II

PRICING SCHEDULE  

        The "Applicable Margin," the "Facility Fee Rate" the "Utilization Fee Rate" and the "LC Fee Rate" for any day are the respective percentages set forth below in
the applicable row under the column corresponding to the Status that exists on such day: 

	Status
 
	 	Applicable

Margin and LC

Fee Rate

prior to

Commitment

Termination Date
	 	Applicable

Margin and LC

Fee Rate

beginning on

Commitment

Termination Date
	 	Facility Fee

Rate
	 	Utilization Fee

Rate
	 
	Level I	 	0.550	%	0.900	%	0.100	%	0.100	%
	

Level II	
 	

0.625	
%	

1.000	
%	

0.125	
%	

0.125	
%
	

Level III	
 	

0.725	
%	

1.100	
%	

0.150	
%	

0.125	
%
	

Level IV	
 	

0.925	
%	

1.425	
%	

0.200	
%	

0.250	
%
	

Level V	
 	

1.000	
%	

1.500	
%	

0.250	
%	

0.500	
%

        As
shown in the table above, the Applicable Margin and the LC Fee Rate will increase on the Commitment Termination Date by 0.35% for Level 1 Status, 0.375% for Level 2 Status and Level 3
Status and 0.50% for Level 4 and Level 5 Status. 

        The
Applicable Margin, the Facility Fee Rate, the Utilization Fee Rate and the LC Fee Rate shall be determined separately for each Borrower in accordance with the table above based on
the Status for such Borrower. The Status in effect for any Borrower on any date for the purposes of this Pricing Schedule is based on the Moody's Rating and S&P Rating in effect at the close of
business on such date. 

        For
the purposes of the foregoing (but subject to the final paragraph of this Pricing Schedule): 

        "Level
I Status" exists at any date for a Borrower if, on such date, such Borrower's Moody's Rating is A3 or better or such Borrower's S&P Rating is A- or better. 

        "Level
II Status" exists at any date for a Borrower if, on such date, (i) Level I Status does not exist for such Borrower and (ii) such Borrower's Moody's Rating is Baa1 or
better or such Borrower's S&P Rating is BBB+ or better. 

        "Level
III Status" exists at any date for a Borrower if, on such date, (i) neither Level I Status nor Level II Status exists for such Borrower and (ii) such Borrower's
Moody's Rating is Baa2 or better or such Borrower's S&P Rating is BBB or better. 

        "Level
IV Status" exists at any date if, on such date, (i) none of Level I Status, Level II Status or Level III Status exists for such Borrower and (ii) such Borrower's
Moody's Rating is Baa3 or better or such Borrower's S&P Rating is BBB- or better. 

        "Level
V Status" exists at any date for a Borrower if, on such date, none of Level I Status, Level II Status, Level III Status or Level IV Status exists for such Borrower. 

        "Status"
means Level I Status, Level II Status, Level III Status, Level IV Status or Level V Status. 

        If
the S&P Rating and the Moody's Rating for a Borrower create a split-rated situation and the ratings differential is one level, the higher rating will apply. If the differential is two
levels or more, the intermediate rating at the midpoint will apply. If there is no midpoint, the higher of the two intermediate ratings will apply. If a Borrower has no Moody's Rating or no S&P
Rating, Level V Status shall exist for such Borrower. 

II-1

TABLE OF CONTENTS  

	 
	 	Page

	ARTICLE I DEFINITIONS AND ACCOUNTING TERMS	 	1
	 	SECTION 1.01 Certain Defined Terms	 	1
	 	SECTION 1.02 Other Interpretive Provisions	 	10
	 	SECTION 1.03 Accounting Principles	 	10
	ARTICLE II AMOUNTS AND TERMS OF THE COMMITMENTS	 	11
	 	SECTION 2.01 Commitments	 	11
	 	SECTION 2.02 Procedures for Advances; Limitations on Borrowings	 	11
	 	SECTION 2.03 Facility and Utilization Fees	 	12
	 	SECTION 2.04 Reduction of Commitment Amounts; Adjustment of Sublimits	 	12
	 	SECTION 2.05 Repayment of Advances	 	13
	 	SECTION 2.06 Interest on Advances	 	13
	 	SECTION 2.07 Additional Interest on Eurodollar Advances	 	13
	 	SECTION 2.08 Interest Rate Determination	 	14
	 	SECTION 2.09 Continuation and Conversion of Advances	 	14
	 	SECTION 2.10 Prepayments	 	15
	 	SECTION 2.11 Increased Costs	 	15
	 	SECTION 2.12 Illegality	 	16
	 	SECTION 2.13 Payments and Computations	 	17
	 	SECTION 2.14 Taxes	 	18
	 	SECTION 2.15 Sharing of Payments, Etc	 	20
	 	SECTION 2.16 Facility LCs	 	20
	 	SECTION 2.17 Extension of Commitment Termination Date	 	23
	ARTICLE III CONDITIONS TO CREDIT EXTENSIONS	 	24
	 	SECTION 3.01 Conditions Precedent to Initial Credit Extensions	 	24
	 	SECTION 3.02 Conditions Precedent to All Credit Extensions	 	24
	ARTICLE IV REPRESENTATIONS AND WARRANTIES	 	25
	 	SECTION 4.01 Representations and Warranties of the Borrowers	 	25
	ARTICLE V COVENANTS OF THE BORROWERS	 	27
	 	SECTION 5.01 Affirmative Covenants	 	27
	 	SECTION 5.02 Negative Covenants	 	29
	ARTICLE VI EVENTS OF DEFAULT	 	31
	 	SECTION 6.01 Events of Default	 	31
	ARTICLE VII THE AGENTS	 	33
	 	SECTION 7.01 Authorization and Action	 	33
	 	SECTION 7.02 Agents' Reliance, Etc	 	33
	 	SECTION 7.03 Agents and Affiliates	 	34
	 	SECTION 7.04 Lender Credit Decision	 	34
	 	SECTION 7.05 Indemnification	 	34
	 	SECTION 7.06 Successor Administrative Agent	 	34
	 	SECTION 7.07 Co-Documentation Agents, Co-Syndication Agents and Lead Arranger	 	35
	ARTICLE VIII MISCELLANEOUS	 	35
	 	SECTION 8.01 Amendments, Etc	 	35
	 	SECTION 8.02 Notices, Etc	 	35
	 	SECTION 8.03 No Waiver; Remedies	 	35
	 	SECTION 8.04 Costs and Expenses; Indemnification	 	36
	 	SECTION 8.05 Right of Set-off	 	37
	 	SECTION 8.06 Binding Effect	 	37
	 	SECTION 8.07 Assignments and Participations	 	37
	 	SECTION 8.08 Governing Law	 	40
	 	SECTION 8.09 Consent to Jurisdiction; Certain Waivers	 	40

 

	 	SECTION 8.10 Execution in Counterparts; Integration	 	40
	 	SECTION 8.11 Liability Several	 	41
	 	SECTION 8.12 Termination of Existing Agreement; Existing Letters of Credit	 	41

	Schedule I	 	List of Applicable Lending Offices	 	 
	Schedule II	 	Pricing Schedule	 	 
	Exhibit A	 	Form of Note	 	 
	Exhibit B	 	Form of Notice of Borrowing	 	 
	Exhibit C	 	Form of Assignment and Acceptance	 	 
	Exhibit D-1	 	Form of Opinion of Special Counsel for Exelon and PECO	 	 
	Exhibit D-2	 	Form of Opinion of Special Counsel for ComEd	 	 
	Exhibit E	 	Form of Annual and Quarterly Compliance Certificate	 	 

ii

QuickLinks

Exhibit 4-1

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