Duquesne Light Holdings, Inc. 5.50% Notes due 2015 6.25% Notes due 2035 Underwriting Agreement

Exhibit 1.1

EXECUTION COPY

Duquesne Light Holdings, Inc.

5.50% Notes due 2015

6.25% Notes due 2035

Underwriting Agreement

New York, New York

August 11, 2005

J.P. Morgan Securities Inc.

270 Park Avenue

New York, New York 10017

Lehman Brothers Inc.

745 Seventh Avenue

New York, New York 10019

Ladies and Gentlemen:

Duquesne Light Holdings, Inc., a corporation organized under the laws of the Commonwealth of Pennsylvania (the “Company”), proposes to sell to the several underwriters named in Schedule II hereto (the “Underwriters”), for which you (the “Representatives”) are acting as representatives, the principal amount of its securities identified in Schedule I hereto (the “Notes”), to be issued under an Indenture dated as of August 16, 2005, between the Company and J.P. Morgan Trust Company, National Association, as trustee, as amended and supplemented from time to time (the “Indenture”).  Terms of the Notes will be set forth in Schedule I hereto which specifies the title of the Notes, the interest rate on the Notes, the aggregate principal amount of the Notes, the purchase price of the Notes to the Underwriters, any concession from the initial public offering price to be allowed to dealers or brokers and any additional terms of the Notes.  To the extent that there are no Underwriters listed on Schedule I other than you, the term Representatives as used herein shall mean you, as Underwriters, and the terms Representatives and Underwriters shall mean either the singular or plural as the context requires.  Any reference herein to the Registration Statement, the Basic Prospectus, any Preliminary Final Prospectus or the Final Prospectus shall be deemed to refer to and include the documents incorporated by reference therein pursuant to Item 12 of Form S-3 which were filed under the Exchange Act on or before the Effective Date of the Registration Statement or the issue date of the Basic Prospectus, any Preliminary Final Prospectus or the Final Prospectus, as the case may be; and any reference herein to the terms “amend”, “amendment” or “supplement” with respect to the Registration Statement, the Basic Prospectus, any Preliminary Final Prospectus or the Final Prospectus shall be deemed to refer to and include the filing of any document under the Exchange Act after the Effective Date of the Registration Statement or the

issue date of the Basic Prospectus, any Preliminary Final Prospectus or the Final Prospectus, as the case may be, deemed to be incorporated therein by reference.  Certain terms used herein are defined in Section 17 hereof.

1.  Representations and Warranties.  The Company represents and warrants to, and agrees with, each Underwriter as set forth below in this Section 1.

(a)  The Company meets the requirements for use of Form S-3 under the Act and has prepared and filed with the Commission a registration statement on Form S-3 (No. 333-85612), including a basic prospectus, for registration under the Act of the offering and sale of the Notes (the “Registration Statement”).  If the Company has filed an abbreviated registration statement to register additional securities pursuant to Rule 462(b) under the Act (the “Rule 462 Registration Statement”), then any reference herein to the term “Registration Statement” shall be deemed to include such Rule 462 Registration Statement.  The Registration Statement has become effective under the Act.  The Company may have filed one or more amendments thereto, including a Preliminary Final Prospectus, each of which has previously been furnished to you.  The Commission has not issued any order preventing or suspending the use of any Preliminary Final Prospectus.  The Company has timely and properly filed with the Commission all reports and other documents required to have been filed by it with the Commission pursuant to the Exchange Act and the applicable instructions, rules and regulations thereunder.  All such reports and documents which have been incorporated by reference into the Registration Statement, any Preliminary Final Prospectus or the Final Prospectus are sometimes referred to herein as the “Incorporated Documents.”  The Company will next file with the Commission a final prospectus and prospectus supplement with respect to the Notes in accordance with Rules 415 and 424(b).  As filed, such final prospectus and prospectus supplement shall contain all required information, and, except to the extent the Representatives shall agree in writing to a modification, shall be in all substantive respects in the form furnished to you prior to the Execution Time or, to the extent not completed at the Execution Time, shall contain only such specific additional information and other changes (beyond that contained in the Basic Prospectus and any Preliminary Final Prospectus) as the Company has advised you, prior to the Execution Time, will be included or made therein. The Registration Statement, at the Execution Time, meets the requirements set forth in Rule 415(a)(1)(x) and complies in all other material respects with Rule 415.

(b)  On the Effective Date, the Registration Statement did, and as of its date, on the date of its filing in accordance with Rule 424(b) and on the Closing Date (as defined herein), the Final Prospectus (and any supplement thereto) will, comply in all material respects with the applicable requirements of the Act, the Exchange Act and the Trust Indenture Act and the applicable instructions, rules and regulations thereunder; at the Execution Time and on the Effective Date, the Registration Statement did not or will not contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein not misleading; on the Effective Date and on the Closing Date, the Indenture did or will comply in all material respects with the applicable requirements of the Trust Indenture Act and the instructions, rules and regulations thereunder; and, on the Effective Date, the Final

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Prospectus, if not filed pursuant to Rule 424(b), will not, and as of its date, on the date of any filing pursuant to Rule 424(b) and on the Closing Date, the Final Prospectus (together with any supplement thereto) will not, include any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided, however, that the Company makes no representations or warranties as to (i) that part of the Registration Statement which shall constitute the Statement of Eligibility and Qualification (Form T-1) under the Trust Indenture Act of the Trustee (the “Form T-1”), (ii) any information contained in the supplement to the Final Prospectus specified to have been furnished or obtained from The Depository Trust Company or (iii) the information contained in or omitted from the Registration Statement or the Final Prospectus (or any supplement thereto) in reliance upon and in conformity with information furnished in writing to the Company by or on behalf of any Underwriter through the Representatives specifically for inclusion in the Registration Statement or the Final Prospectus (or any supplement thereto).

(c)  The Incorporated Documents, when filed with the Commission, complied as to form in all material respects with the applicable requirements of the Exchange Act and the applicable instructions, rules and regulations of the Commission thereunder and did not contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein not misleading.

(d)  Neither the Company nor any of its subsidiaries which meet the definition of a “significant subsidiary” as such term is defined in Rule 1-02 of Regulation S-X adopted by the Commission (the “Significant Subsidiaries”) is in violation of its charter or its by-laws, or in default in the performance or observance of any material obligation, agreement, covenant or condition contained in any contract, agreement or other instrument to which it is a party or by which it or its properties may be bound, the effect of which is material to the Company and its subsidiaries, taken as a whole, and neither the execution or delivery or performance by the Company of this Agreement, the execution or delivery by the Company of the Indenture, the consummation of the transactions herein contemplated, the fulfillment of the terms hereof or of the Indenture or the Notes, nor compliance with the terms and provisions hereof or of the Indenture or the Notes will conflict with, or result in a breach or violation of, or constitute a default under, or result in the creation or imposition of any lien, charge or encumbrance upon any of the property or assets of the Company or any of its Significant Subsidiaries pursuant to the terms of, any statute, indenture, mortgage, deed of trust, loan agreement, note, lease, or other agreement or instrument to which the Company or any of its Significant Subsidiaries is a party or by which the Company or any of its Significant Subsidiaries is bound or to which any of the properties or assets of the Company or any of its Significant Subsidiaries is subject, the effect of which is material to the Company and its subsidiaries taken as a whole, nor will such action result in a violation of the provisions of (i) the charter or by-laws of the Company or any of its Significant Subsidiaries or (ii) any order, rule or regulation applicable to the Company or any of its Significant Subsidiaries of any court or any federal or state governmental body having jurisdiction over the Company or

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any of its Significant Subsidiaries or over their properties, the effect of which is material to the Company and its subsidiaries taken as a whole.

(e)  The Indenture has been duly and validly authorized and has been duly qualified under the Trust Indenture Act and, at the Closing Date, will have been duly executed and delivered by the Company and, assuming the capacity of and the due authorization, execution and delivery by the other parties thereto, will constitute a legal, valid and binding obligation of the Company enforceable against the Company in accordance with its terms, subject, as to enforcement, to laws relating to or affecting generally the enforcement of creditors’ rights, including, without limitation, bankruptcy and insolvency laws, and to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law).

(f)  The creation, issuance and sale of the Notes has been duly and validly authorized and when executed and authenticated in accordance with the provisions of the Indenture and delivered to and paid for by the Underwriters pursuant to this Agreement, the Notes will constitute legal, valid and binding obligations of the Company, subject, as to enforcement, to laws relating to or affecting generally the enforcement of creditors’ rights, including, without limitation, bankruptcy and insolvency laws, and to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and will be entitled to the benefits provided by the Indenture.

(g)  This Agreement has been duly authorized, executed and delivered by the Company and, assuming the capacity of and the due authorization, execution and delivery by the other parties thereto, is a legal, valid and binding obligation of the Company, enforceable against the Company in accordance with its terms, except as rights to indemnity may be limited by Federal or state securities laws and subject, as to enforcement, to laws relating to or affecting generally the enforcement of creditors’ rights, including, without limitation, bankruptcy and insolvency laws, and to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law).

(h)  The Company is a corporation presently subsisting under the laws of the Commonwealth of Pennsylvania, with full corporate power and authority (i) to own or lease and operate its properties and conduct its business as described in the Final Prospectus and (ii) to enter into, and perform its obligations under this Agreement; and the Company is duly qualified to do business as a foreign corporation and is in good standing under the laws of each jurisdiction in which it owns or leases substantial properties or in which the conduct of its business requires such qualification.

(i)  Each of the Significant Subsidiaries has been duly incorporated or formed and is validly existing as a corporation, a limited liability company or a partnership in good standing under the laws of the jurisdiction of its incorporation or formation, has power and authority to own, lease and operate its properties and to conduct its business as presently conducted and as described in the Registration Statement and the Prospectus, and is duly qualified as a foreign corporation, limited liability company or partnership to

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transact business and is in good standing in each jurisdiction in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except where the failure to so qualify or be in good standing would not have a material adverse effect on the condition (financial or otherwise), business or properties of the Company and its subsidiaries, taken as a whole; all of the issued and outstanding shares of capital stock (or, in the case of limited liability companies, member interests or, in the case of partnerships, partnership interests) of each such Significant Subsidiary have been duly authorized and validly issued and, with respect to the capital stock, are fully paid and non-assessable and all such shares (or member interests or partnership interests, as the case may be) are owned by the Company directly or through its subsidiaries, free and clear of any security interest, mortgage, pledge, lien, encumbrance, claim or equity.

(j)  No consent, approval, authorization, filing with or order of any court or other governmental agency or body is required for the consummation of the transactions contemplated by this Agreement except such as have been obtained and such as may be required under the blue sky laws of any jurisdiction in connection with the purchase and sale of the Notes in the manner contemplated in this Agreement and in the Final Prospectus.

(k)  Since July 30, 2002, the Company has not, in violation of the Sarbanes-Oxley Act of 2002 (“Sarbanes-Oxley”), directly or indirectly, including through a subsidiary, extended or maintained credit, arranged for the extension of credit, or renewed an extension of credit, in the form of a personal loan to or for any executive officer or director of the Company.

(l)  The Company has filed certifications and statements with its periodic reports pursuant to Sections 302 and 906 of Sarbanes-Oxley and has made the evaluations of the Company’s disclosure controls and procedures required under Rule 13a-15 under the Exchange Act.

(m)  The financial statements (including the related notes and supporting schedules) filed as part of the Registration Statement or included in the Final Prospectus present fairly in all material respects the financial condition and results of operations of the entities purported to be shown thereby, at the dates and for the periods indicated, and have been prepared in conformity with generally accepted accounting principles applied on a consistent basis throughout the periods involved.

(n)  Deloitte & Touche LLP, who have certified certain financial statements of the Company, whose report is contained in the Final Prospectus and who have delivered the letters referred to in Section 6(f) hereof, are independent public accountants as required by the Act and the applicable rules and regulations thereunder.

(o)  Neither the Company nor any Significant Subsidiary is, or, as of the Closing Date after giving effect to the transactions contemplated hereby and the application of the net proceeds therefrom as described in the Prospectus, will be, an “investment company” as defined in the Investment Company Act of 1940, as amended.

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(p)  The Company is a public utility holding company under The Public Utility Holding Company Act of 1935, as amended (“PUHCA”) and is exempt from all regulation under PUHCA (other than under Section 9(a)(2) thereof) pursuant to the exemption from registration with the Commission set forth in Section 3(a)(1) of PUHCA.

(q)  Except as disclosed in or contemplated by the Final Prospectus, there are no legal or governmental proceedings pending to which the Company or any of its subsidiaries is a party or of which any property or assets of the Company or any of its subsidiaries is the subject which, if determined adversely to the Company or any of its subsidiaries, would reasonably be expected to have a material adverse effect on the condition (financial or otherwise), business or properties of the Company and its subsidiaries taken as a whole; and to the best of the Company’s knowledge, no such proceedings are threatened or contemplated by governmental authorities or threatened by others.

(r)  The Company has designed and maintains “internal control over financial reporting” (as such term is defined in Rule 13a-15(f) under the Exchange Act, “Reporting Controls”); and the Reporting Controls are (i) designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with GAAP and include, without limitation, those processes specifically referred to in Rule 13a-15(f) and (ii) to the best knowledge of the Company, effective to perform the functions for which they are maintained.

(s)  The Company and its Significant Subsidiaries (i) are in material compliance with any and all applicable federal, state and local laws rules, regulations, decisions and orders relating to the protection of human health and safety, the environment or hazardous or toxic substances or wastes, pollutants or contaminants (collectively, “Environmental Laws”); (ii) have received and are in material compliance with all permits, licenses or other approvals required of them under applicable Environmental Laws to conduct their respective businesses; and (iii) have not received notice of any actual or potential liability for the investigation or remediation of any disposal or release of hazardous or toxic substances or wastes, pollutants or contaminants, except in any such case for any such failure to comply with, or failure to receive required permits, licenses or approvals, or liability as would not, individually or in the aggregate, have a material adverse effect on the condition (financial or otherwise), business or properties of the Company and its subsidiaries taken as a whole.

Any certificate signed by any officer of the Company and delivered to the Representatives or counsel for the Underwriters in connection with the offering of the Notes shall be deemed a representation and warranty by the Company, as to matters covered thereby, to each Underwriter.

2.  Purchase and Sale.  Subject to the terms and conditions and in reliance upon the representations and warranties herein set forth, the Company agrees to sell to each Underwriter, and each Underwriter agrees, severally and not jointly, to purchase from the Company, at the purchase price set forth in Schedule I hereto, the principal amount of the Notes set forth opposite such Underwriter’s name in Schedule II hereto.

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3.  Delivery and Payment.  Delivery of and payment for the Notes shall be made on the date and at the time specified in Schedule I hereto or at such time on such later date not more than five Business Days after the foregoing date as the Representatives shall designate, which date and time may be postponed by agreement between the Representatives and the Company or as provided in Section 9 hereof (such date and time of delivery and payment for the Notes being herein called the “Closing Date”).

Delivery of the Notes shall be made to the Representatives for the respective accounts of the several Underwriters against payment by the several Underwriters through the Representatives of the purchase price thereof to or upon the order of the Company by wire transfer payable in same-day funds to an account specified by the Company.  Delivery of the Notes shall be made through the facilities of The Depository Trust Company unless the Representatives shall otherwise instruct.

4.  Offering by Underwriters.  It is understood that the several Underwriters propose to offer the Notes for sale to the public as set forth in the Final Prospectus.

5.  Agreements.  The Company agrees with the several Underwriters that:

(a)  Prior to the termination of the offering of the Notes, the Company will not file any amendment of the Registration Statement or supplement (including the Final Prospectus or any Preliminary Final Prospectus) to the Basic Prospectus or any Rule 462(b) Registration Statement unless the Company has furnished you a copy for your review prior to filing and gives you reasonable opportunity to comment.  Subject to the foregoing sentence, the Company will cause the Final Prospectus, properly completed, and any supplement thereto to be filed with the Commission pursuant to the applicable paragraph of Rule 424(b) within the time period prescribed and will provide evidence satisfactory to the Representatives of such timely filing.  The Company will promptly advise the Representatives (1) when the Final Prospectus, and any supplement thereto, shall have been filed with the Commission pursuant to Rule 424(b) or when any Rule 462(b) Registration Statement shall have been filed with the Commission, (2) when, prior to termination of the offering of the Notes, any amendment to the Registration Statement shall have been filed or become effective, (3) of any request by the Commission or its staff for any amendment of the Registration Statement, or any Rule 462(b) Registration Statement, or for any supplement to the Final Prospectus or for any additional information, (4) of the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement or the institution or threatening of any proceeding for that purpose and (5) of the receipt by the Company of any notification with respect to the suspension of the qualification of the Notes for sale in any jurisdiction or the institution or threatening of any proceeding for such purpose.  The Company will use its commercially reasonable best efforts to obtain as soon as possible the withdrawal of any such stop order or suspension.

(b)  If, at any time when a prospectus relating to the Notes is required to be delivered under the Act, any event occurs as a result of which the Final Prospectus as then supplemented would include any untrue statement of a material fact or omit to state any material fact necessary to make the statements therein in the light of the

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circumstances under which they were made not misleading, or if it shall be necessary to amend the Registration Statement or supplement the Final Prospectus to comply with the Act or the Exchange Act or the respective instructions, rules and regulations thereunder, the Company promptly will (1) notify the Representatives of such event, (2) prepare and file with the Commission, subject to the second sentence of paragraph (a) of this Section 5, an amendment or supplement which will correct such statement or omission or effect such compliance and (3) supply any supplemented Final Prospectus to you in such quantities as you may reasonably request; provided, however, that should any such event relate solely to activities of the Underwriters, then the Underwriters shall assume the expense of preparing and furnishing any such amendment or supplement.

(c)  As soon as practicable, the Company will make generally available to its security holders and to the Representatives an earning statement or statements of the Company and its subsidiaries which will satisfy the provisions of Section 11(a) of the Act and Rule 158 under the Act.

(d)  The Company will furnish to the Representatives and counsel for the Underwriters, without charge, signed copies of the Registration Statement (including exhibits thereto, other than those incorporated by reference) and to each other Underwriter a copy of the Registration Statement (without exhibits thereto) and, so long as delivery of a prospectus by an Underwriter or dealer may be required by the Act, as many copies of each Preliminary Final Prospectus and the Final Prospectus and any supplement thereto as the Representatives may reasonably request.  The Company will pay the expenses of printing or other production of all documents relating to the offering.

(e)  The Company will arrange, if necessary, for the qualification of the Notes for sale under the laws of such jurisdictions as the Representatives may designate, will maintain such qualifications in effect so long as required for the distribution of the Notes; provided, however, that the Company shall not be required to qualify as a foreign corporation or to file a general consent to service of process in any jurisdiction, or to comply with any other requirement reasonably deemed by the Company to be unduly burdensome.

(f)  Until the Business Day set forth on Schedule I hereto, the Company will not, without the prior written consent of the Representatives, offer, sell, contract to sell, pledge, or otherwise dispose of, (or enter into any transaction which is designed to, or might reasonably be expected to, result in the disposition (whether by actual disposition or effective economic disposition due to cash settlement or otherwise) by the Company or any affiliate of the Company or any person in privity with the Company or any affiliate of the Company) directly or indirectly, or establish or increase a put equivalent position or liquidate or decrease a call equivalent position within the meaning of Section 16 of the Exchange Act of, any debt issued or guaranteed by the Company (other than the Notes) or publicly announce an intention to effect any such transaction; provided that the foregoing will not prohibit the Company from filing a shelf registration statement with the Commission in respect of debt issued or guaranteed by the Company.

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(g)  The Company will not take, directly or indirectly, any action designed to or that would constitute or that might reasonably be expected to cause or result in stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Notes.

(h)  The Company will use the net proceeds received by it from the sale of the Notes sold by it in the manner specified in the Final Prospectus under the “Use of Proceeds”.

The Company also acknowledges and agrees that the Underwriters are acting solely in the capacity of an arm’s length contractual counterparty to the Company with respect to the offering of Notes contemplated hereby (including in connection with determining the terms of the offering) and not as a financial advisor or a fiduciary to, or an agent of, the Company or any other person.  Additionally, neither the Representatives nor any of the Underwriters are advising the Company or any other person as to any legal, tax, investment, accounting or regulatory matters in any jurisdiction.  The Company shall consult with its own advisors concerning such matters and shall be responsible for making their own independent investigation and appraisal of the transactions contemplated hereby, and the Underwriters shall have no responsibility or liability to the Company with respect thereto. Any review by the Underwriters of the Company, the transactions contemplated hereby or other matters relating to such transactions will be performed solely for the benefit of the Underwriters and shall not be on behalf of the Company.

6.  Conditions to the Obligations of the Underwriters.  The respective obligations of the several Underwriters to purchase the Notes shall be subject to the accuracy of the representations and warranties on the part of the Company contained herein as of the Execution Time and the Closing Date, to the accuracy of the statements of the Company made in any certificates pursuant to the provisions hereof, to the performance by the Company of its obligations hereunder and to the following additional conditions:

(a)  The Final Prospectus, and any such supplement, will be filed in the manner and within the time period required by Rule 424(b); and no stop order suspending the effectiveness of the Registration Statement shall have been issued and no proceedings for that purpose shall have been instituted or threatened.

(b)  The Company shall have requested and caused Douglas L. Rabuzzi, Esq., Assistant General Counsel of the Company, to have furnished to the Representatives his opinion, dated the Closing Date and addressed to the Representatives, to the effect that:

(i) the Company is a corporation presently subsisting under the laws of the Commonwealth of Pennsylvania, with full corporate power and authority (i) to own or lease and operate its properties and conduct its business as described in the Final Prospectus and (ii) to enter into, and perform its obligations under, this Agreement; the Company is duly qualified to do business as a foreign corporation and is in good standing under the laws of each other jurisdiction in which it owns or leases substantial properties or in which the conduct of its business requires such qualification;

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(ii) each of the Significant Subsidiaries has been duly incorporated or formed, and is validly existing as a corporation, a limited liability company or a partnership in good standing under the laws of its jurisdictions of incorporation or formation and is duly qualified to do business and is in good standing as a foreign corporation, a foreign limited liability company or a foreign partnership, in each jurisdiction in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except where the failure to qualify or be in good standing would not have a material adverse effect on the condition (financial or otherwise), business or properties of the Company and its subsidiaries, taken as a whole, and has all power and authority necessary to own or hold its properties and conduct the business in which it is engaged;

(iii) all the outstanding shares of capital stock (or, in the case of limited liability companies, member interests or, in the case of partnerships, partnership interests) of each Significant Subsidiary, if any, have been duly and validly authorized and issued and, with respect to the capital stock, are fully paid and nonassessable, and, except as otherwise set forth in the Final Prospectus, all outstanding shares of capital stock (or member interests or partnership interests, as the case may be) of each Significant Subsidiary are owned by the Company either directly or through wholly owned subsidiaries, free and clear of any perfected security interest and, to the knowledge of such counsel, after due inquiry, any other security interest, claim, lien or encumbrance;

(iv) the Company’s authorized equity capitalization is as set forth in the Final Prospectus; and, except as set forth in the Final Prospectus, no options, warrants or other rights to purchase, agreements or other obligations to issue, or rights to convert any obligations into or exchange any securities for, shares of capital stock of or ownership interests in the Company are outstanding;

(v) the Incorporated Documents when they were filed with the Commission complied as to form in all material respects with the requirements of the Exchange Act;

(vi) the Indenture has been duly authorized, executed and delivered by the Company, has been duly qualified under the Trust Indenture Act, and, assuming the capacity of and the due authorization, execution and delivery by the other parties thereto, constitutes a legal, valid and binding obligation of the Company, enforceable against the Company in accordance with its terms, subject, as to enforcement, to laws relating to or affecting generally the enforcement of creditors’ rights, including, without limitation, bankruptcy and insolvency laws, and to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law), and the Indenture conforms as to legal matters in all material respects to the description of the terms thereof contained in the Registration Statement and the Final Prospectus;

(vii) the Notes have been duly and validly authorized and, when executed and authenticated in accordance with the provisions of the Indenture and

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delivered to and paid for by the Underwriters pursuant to this Agreement, the Notes will constitute legal, valid and binding obligations of the Company enforceable in accordance with their terms, subject, as to enforcement, to laws relating to or affecting generally the enforcement of creditors’ rights, including, without limitation, bankruptcy and insolvency laws, and to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law), will be entitled to the benefits provided by the Indenture; and the Notes conform as to legal matters to the description of the terms thereof contained in the Registration Statement and the Final Prospectus;

(viii) to the knowledge of such counsel, there is no pending or threatened action, suit or proceeding by or before any court or governmental agency, authority or body or any arbitrator involving the Company or any of its subsidiaries or its or their property, of a character required to be disclosed in the Registration Statement which is not adequately disclosed in the Final Prospectus, and there is no franchise, contract, agreement or other document relating to the Company or any of its subsidiaries or its or their property of a character required to be described in the Registration Statement, or to be filed as an exhibit thereto, which is not described in the Final Prospectus or filed as required; and the statements included or incorporated by reference in the Final Prospectus insofar as such statements summarize legal proceedings or material contracts or agreements relating to the Company are fair summaries of such legal proceedings or material contracts or agreements;

(ix) the Registration Statement and the Final Prospectus (except as to the financial statements and other financial data contained therein or incorporated by reference therein as to which such counsel need express no opinion) comply as to form in all material respects with the applicable requirements of the Act and the Trust Indenture Act and the applicable instructions, rules and regulations of the Commission thereunder or pursuant to such instructions, rules and regulations are deemed to have complied therewith; the Incorporated Documents (except as to the financial statements and other financial data contained therein or incorporated by reference therein as to which such counsel need express no opinion), when filed with the Commission, complied as to form in all material respects with the applicable requirements of the Exchange Act and the applicable instructions, rules and regulations of the Commission thereunder or pursuant to such instructions, rules and regulations are deemed to have complied therewith; the Registration Statement has become effective under the Act; any required filings of the Basic Prospectus, any Preliminary Final Prospectus and the Final Prospectus, and any supplements thereto, have been made in the manner and within the time period required by Rule 424(b); and to the knowledge of such counsel, no stop order suspending the effectiveness of the Registration Statement has been issued and no proceedings for that purpose have been instituted or are pending or threatened;

(x)  such counsel has no reason to believe that the Registration Statement, at the Effective Date or the date the Registration Statement was last deemed amended, contained an untrue statement of a material fact or omitted to state any

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material fact required to be stated therein or necessary to make the statements therein not misleading, or that the Final Prospectus, as of its date and on the Closing Date, included or includes an untrue statement of a material fact or omitted or omits to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided, that such counsel need not express any belief as to (1) the financial statements and other financial data contained in or incorporated by reference in the Registration Statement and the Final Prospectus, (2) any information contained in the Registration Statement and the Final Prospectus (or any supplement thereto) that was furnished in writing to the Company by or on behalf of any Underwriter through the Representatives specifically for inclusion in the Registration Statement or the Final Prospectus (or any supplement thereto), (3) statements contained in the Form T-1 filed as an exhibit to the Registration Statement, or (4) any information contained in the Final Prospectus specified to have been furnished or obtained from The Depository Trust Company;

(xi) this Agreement has been duly authorized, executed and delivered by the Company;

(xii) no consent, approval, authorization, filing with or order of any court or governmental agency or body is required in connection with the transactions contemplated herein, except such as have been obtained under the Act and such as may be required under the blue sky laws of any jurisdiction in connection with the purchase and distribution of the Notes by the Underwriters in the manner contemplated in this Agreement and in the Final Prospectus;

(xiii) none of the execution and delivery of the Indenture, the issue and sale of the Notes, the consummation of any other of the transactions herein contemplated nor the fulfillment of the terms hereof will conflict with, result in a breach or violation of, or constitute a default under, the Company’s Articles of Incorporation, as amended (the “Articles”), or the Company’s By-Laws, as amended (the “By-Laws”), or the terms of any indenture, contract, agreement or other obligation, condition, covenant or instrument known to such counsel to which the Company or any of its subsidiaries is a party or is bound or to which its or their property is subject, or any statute, law, rule, regulation, judgment, order or decree known to such counsel to be applicable to the Company or any of its subsidiaries of any court, regulatory body, administrative agency, governmental body, arbitrator or other authority having jurisdiction over the Company or any of its subsidiaries or any of its or their properties; and

(xiv)  the Company is a public utility holding company under the Public Utility Holding Company Act of 1935 (“PUHCA”) and is exempt from all regulation under PUHCA (other than under Section 9(a)(2) thereof) pursuant to the exemption from registration with the Commission set forth in Section 3(a)(1) of PUHCA.

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In rendering such opinion, such counsel may rely (A) as to matters involving the application of laws of any jurisdiction other than the Commonwealth of Pennsylvania or the Federal laws of the United States, to the extent they deem proper and specified in such opinion, upon the opinion of other counsel of good standing whom they believe to be reliable and who are satisfactory to counsel for the Underwriters, (B) as to the qualification of the Indenture under the Trust Indenture Act, the compliance as to form of the Registration Statement and the Final Prospectus with the requirements of the Act and the Trust Indenture Act and the applicable instructions, rules and regulations thereunder, the compliance by the Company with Rule 424(b) under the Act and the conformity of the Indenture and the Notes with Rule 424(b) under the Act and the conformity of the Indenture and the Notes with the respective descriptions thereof in the Registration Statement and the Final Prospectus, upon the opinion of Reed Smith LLP, special counsel to the Company, and (C) as to matters of fact, to the extent they deem proper, on certificates of responsible officers of the Company and public officials.  References to the Final Prospectus in this paragraph (b) include any supplements thereto at the Closing Date.

(c)  The Representatives shall have received from Reed Smith LLP, counsel to the Company, such opinion or opinions, dated the Closing Date and addressed to the Representatives, (1) to the effect that (A) the Notes conform as to legal matters in all material respects to the description thereof contained in the Final Prospectus; (B) the Company is not and, after giving effect to the offering and sale of the Notes and the application of the proceeds thereof as described in the Final Prospectus, will not be an “investment company” as defined in the Investment Company Act of 1940, as amended; and (C) the Incorporated Documents when they were filed with the Commission complied as to form in all material respects with the requirements of the Exchange Act; and (2) with respect to the matters enumerated in paragraphs (vi) (provided that, in giving such opinion, counsel may assume that the Indenture would be enforced as written), (vii), (ix), (x) (provided that such counsel need not express any belief as to statistical data), (xi) (xiii) (to the extent such paragraph (xiii) opines as to the Articles and By-Laws of the Company) of subsection (b) of this Section 6 as the opinion of Douglas L. Rabuzzi, Esq.

(d)  The Representatives shall have received from Milbank, Tweed, Hadley & McCloy LLP, counsel for the Underwriters, such opinion or opinions, dated the Closing Date and addressed to the Representatives, with respect to the issuance and sale of the Notes, the Indenture, the Registration Statement, the Final Prospectus (together with any supplement thereto) and other related matters as the Representatives may reasonably require, and the Company shall have furnished to such counsel such documents as they request for the purpose of enabling them to pass upon such matters.

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(e)  The Company shall have furnished to the Representatives a certificate of the Company, signed by the President or the Chief Financial Officer and the Controller, Vice President with responsibility for financial matters or Treasurer of the Company, dated the Closing Date, to the effect that the signers of such certificate have carefully examined the Registration Statement, the Final Prospectus, any supplements to the Final Prospectus and this Agreement and that:

(i) the representations and warranties of the Company in this Agreement are true and correct in all material respects on and as of the Closing Date with the same effect as if made on the Closing Date and the Company has complied with all the agreements and satisfied all the conditions on its part to be performed or satisfied at or prior to the Closing Date;

(ii) no stop order suspending the effectiveness of the Registration Statement has been issued and no proceedings for that purpose have been instituted or, to the Company’s knowledge, threatened;

(iii) since the date of the most recent financial statements included or incorporated by reference in the Final Prospectus (exclusive of any supplement thereto), there has been no material adverse change in the condition (financial or otherwise), business or properties of the Company and its subsidiaries, taken as a whole, whether or not arising from transactions in the ordinary course of business, except as set forth in or contemplated in the Final Prospectus (exclusive of any supplement thereto); and

(iv) no proceeding for the dissolution, merger, consolidation or liquidation of the Company or for the sale of all or substantially all of its assets is pending, or to the best of the signer’s knowledge, threatened, and no such proceeding is contemplated by the Company, other than as described in the Registration Statement and the Final Prospectus or the documents incorporated therein by reference.

(f)  The Company shall have requested and caused Deloitte & Touche LLP to have furnished to the Representatives, at the Execution Time and at the Closing Date, letters (which may refer to letters previously delivered to one or more of the Representatives), dated respectively as of the Execution Time and as of the Closing Date, in form and substance satisfactory to the Representatives, confirming that they are independent accountants within the meaning of the Act and the Exchange Act and the respective applicable rules and regulations adopted by the Commission and the Public Company Accounting Oversight Board thereunder and that they have performed a review of the unaudited interim financial information of the Company, if any, for the period ended and as of the date of the Company’s most recent unaudited financial statements included or incorporated by reference in the Registration Statement and Final Prospectus in accordance with procedures described in AU 722, Interim Financial Information and stating in effect, except as provided in Schedule I hereto, that:

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(i) in their opinion the Company’s audited financial statements and financial statement schedules included or incorporated by reference in the Registration Statement and the Final Prospectus and reported on by them comply as to form in all material respects with the applicable accounting requirements of the Act and the Exchange Act and the related rules and regulations adopted by the Commission;

(ii) on the basis of a reading of the latest unaudited financial statements, if any, made available by the Company and its subsidiaries, limited review, in accordance with procedures described in AU 722, Interim Financial Information, of the unaudited interim financial information incorporated by reference in the Registration Statement and the Final Prospectus; carrying out certain specified procedures (but not an examination in accordance with generally accepted auditing standards) which would not necessarily reveal matters of significance with respect to the comments set forth in such letter; a reading of the minutes of the meetings of the stockholders, directors and committees of the Company and its subsidiaries; and inquiries of certain officials of the Company who have responsibility for financial and accounting matters of the Company and its subsidiaries as to transactions and events subsequent to December 31, 2004, nothing came to their attention which caused them to believe that:

(1) any unaudited financial statements of the Company included or incorporated by reference in the Registration Statement and the Final Prospectus do not comply as to form in all material respects with applicable accounting requirements of the Act and with the related rules and regulations adopted by the Commission with respect to financial statements included or incorporated by reference in quarterly reports on Form 10-Q under the Exchange Act; and said unaudited financial statements are not in conformity with generally accepted accounting principles applied on a basis substantially consistent with that of the audited financial statements included or incorporated by reference in the Registration Statement and the Final Prospectus;

(2) with respect to the period subsequent to December 31, 2004, there were any changes, at a specified date not more than five days prior to the date of the letter, in the capital stock, increase in short-term indebtedness or long-term debt or any decreases in consolidated net current assets or stockholders’ equity of the Company as compared with the amounts shown on December 31, 2004, or for the period from January 1, 2005 to such specified date, there were any decreases, as compared with the corresponding period in the preceding year; in consolidated operating revenue, consolidated operating income or the total amount of net income of the Company, except in all instances for changes or decreases set forth in such letter, in which case the letter shall be accompanied by an explanation by the Company as to the significance thereof unless said explanation is not deemed necessary by the Representatives;

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(3) the information relating to the Company included or incorporated by reference in the Registration Statement and Final Prospectus in response to Regulation S-K, Item 301 (Selected Financial Data) and Item 302 (Supplementary Financial Information), if any, is not in conformity with the applicable disclosure requirements of Regulation S-K; or

(4) the amounts included in any unaudited “capsule” information relating to the Company included or incorporated by reference in the Registration Statement and the Final Prospectus do not agree with the amounts set forth in the unaudited financial statements for the same periods or were not determined on a basis substantially consistent with that of the corresponding amounts in the audited financial statements included or incorporated by reference in the Registration Statement and the Final Prospectus; and

(iii) they have performed certain other specified procedures as a result of which they determined that certain information of an accounting, financial or statistical nature (which is limited to accounting, financial or statistical information derived from the general accounting records of the Company and its subsidiaries) set forth in the Registration Statement and the Final Prospectus, including the information set forth under the captions “Capitalization” “Summary Selected Consolidated Financial Data” in the Final Prospectus, the information included or incorporated by reference in Items 1, 2, 6 and 7 of the Company’s Annual Report on Form 10-K, incorporated by reference in the Registration Statement and the Final Prospectus, and the information included in the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included or incorporated by reference in the Company’s Quarterly Reports on Form 10-Q, incorporated by reference in the Registration Statement and the Final Prospectus, agrees with the accounting records of the Company and its subsidiaries, excluding any questions of legal interpretation.

References to the Final Prospectus in this paragraph (f) include any supplement thereto at the date of the letter.

(g)  Subsequent to the Execution Time or, if earlier, the dates as of which information is given in the Registration Statement (exclusive of any amendment thereof) and the Final Prospectus (exclusive of any supplement thereto), there shall not have been (i) any change or decrease specified in the letter or letters referred to in paragraph (f) of this Section 6 or (ii) any change, or any development involving a change, in or affecting the condition (financial or otherwise), business or properties of the Company and its subsidiaries, taken as a whole, whether or not arising from transactions in the ordinary course of business, except as set forth in or contemplated in the Final Prospectus (exclusive of any supplement thereto) the effect of which, in any case referred to in clause (i) or (ii) above, is, in the sole judgment of the Representatives, so material and adverse as to make it impractical or inadvisable to proceed with the offering or delivery

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of the Notes as contemplated by the Registration Statement (exclusive of any amendment thereof) and the Final Prospectus (exclusive of any supplement thereto).

(h)  Subsequent to the Execution Time, there shall not have been any decrease in the rating of any of the Company’s debt securities by any “nationally recognized statistical rating organization” (as defined for purposes of Rule 436(g) under the Act) or any public announcement by such organization that it has under surveillance or review, or has changed its outlook with respect to, its rating of any of the Company’s debt securities (other than an announcement with positive implications of a possible upgrading).

(i)  At the Execution Time and the Closing Date, the Representatives shall have received from the Company evidence reasonably satisfactory to the Representatives that the Notes have received ratings of at least Baa3, BBB- and BBB- from Moody’s Investors Service, Inc., Standard & Poor’s Ratings Services and Fitch Ratings, respectively.

(j)  Prior to the Closing Date, the Company shall have furnished to the Representatives such further information, certificates and documents as the Representatives may reasonably request.

If any of the conditions specified in this Section 6 shall not have been fulfilled in all material respects when and as provided in this Agreement, or if any of the opinions and certificates mentioned above or elsewhere in this Agreement shall not be in all material respects reasonably satisfactory in form and substance to the Representatives and counsel for the Underwriters, this Agreement and all obligations of the Underwriters hereunder may be canceled at, or at any time prior to, the Closing Date by the Representatives.  Notice of such cancellation shall be given to the Company in writing or by telephone or facsimile confirmed in writing.

The documents required to be delivered by this Section 6 shall be delivered at the office of Milbank, Tweed, Hadley & McCloy LLP, counsel for the Underwriters, at 1 Chase Manhattan Plaza, New York, New York 10005-1413, on the Closing Date.

7.  Reimbursement of Underwriters’ Expenses.  If the sale of the Notes provided for herein is not consummated because any condition to the obligations of the Underwriters set forth in Section 6 hereof is not satisfied, because of any termination pursuant to Section 10 hereof or because of any refusal, inability or failure on the part of the Company to perform any agreement herein or comply with any provision hereof other than by reason of a default by any of the Underwriters, the Company will reimburse the Underwriters severally through the Representatives on demand for all out-of-pocket expenses (including reasonable fees and disbursements of counsel) reasonably incurred by them in connection with the proposed purchase and sale of the Notes.  Otherwise, the Underwriters shall pay their own expenses, including the fees and expenses of their counsel.

8.  Indemnification and Contribution.  (a)  The Company agrees to indemnify and hold harmless each Underwriter, the directors, officers, employees and agents of each Underwriter and each person who controls any Underwriter within the meaning of either the Act or the Exchange Act against any and all losses, claims, damages or liabilities, joint or several, to

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which they or any of them may become subject under the Act, the Exchange Act or other Federal or state statutory law or regulation, at common law or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon any untrue statement or alleged untrue statement of a material fact contained in the registration statement for the registration of the Notes as originally filed or in any amendment thereof, or in the Basic Prospectus, any Preliminary Final Prospectus or the Final Prospectus, or in any amendment thereof or supplement thereto, or arise out of or are based upon the omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, and agrees to reimburse each such indemnified party for any legal or other expenses reasonably incurred by them, as incurred, in connection with investigating or defending any such loss, claim, damage, liability or action; provided, however, that (i) the Company will not be liable in any such case to the extent that any such loss, claim, damage or liability arises out of or is based upon any such untrue statement or alleged untrue statement or omission or alleged omission made therein in reliance upon and in conformity with written information furnished to the Company by or on behalf of any Underwriter through the Representatives specifically for inclusion therein and (ii) such indemnity with respect to the Final Prospectus or any Preliminary Final Prospectus shall not inure to the benefit of any of the Underwriters (or any person controlling any of the Underwriters) from whom the person asserting any such loss, claim, damage or liability purchased the Notes which are the subject thereof if such person did not receive a copy of the Final Prospectus (or the Final Prospectus as supplemented) excluding documents incorporated therein by reference at or prior to the confirmation of the sale of such Notes to such person in any case where such delivery is required by the Act and the untrue statement or omission of a material fact contained in the Final Prospectus or any Preliminary Final Prospectus was corrected in the Final Prospectus (or the Final Prospectus as supplemented); provided that, copies of the Final Prospectus (or the Final Prospectus as supplemented) were sufficiently and timely provided to you. This indemnity agreement will be in addition to any liability which the Company may otherwise have.

(b)  Each Underwriter severally and not jointly agrees to indemnify and hold harmless the Company, each of its directors, each of its officers who signs the Registration Statement, and each person who controls the Company within the meaning of either the Act or the Exchange Act, to the same extent as the foregoing indemnity from the Company to each Underwriter, but only with reference to written information furnished to the Company by or on behalf of such Underwriter through the Representatives specifically for inclusion in the documents referred to in the foregoing indemnity.  This indemnity agreement will be in addition to any liability which any Underwriter may otherwise have.  The Company acknowledges that the statements set forth in the last paragraph of the cover page regarding delivery of the Notes and under the heading “Underwriting” or “Plan of Distribution”, (i) the list of Underwriters and their respective participation in the sale of the Notes, (ii) the sentence related to market-making activity by the Underwriters, (iii) the sentences related to concessions and reallowances, and (iv) the paragraphs related to stabilization, syndicate covering transactions and penalty bids in any Preliminary Final Prospectus and the Final Prospectus constitute the only information furnished in writing by or on behalf of the several Underwriters for inclusion in any Preliminary Final Prospectus or the Final Prospectus.

(c)  Promptly after receipt by an indemnified party under this Section 8 of notice of the commencement of any action, such indemnified party will, if a claim in respect thereof is

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to be made against the indemnifying party under this Section 8, notify the indemnifying party in writing of the commencement thereof; but the failure so to notify the indemnifying party (i) will not relieve the indemnifying party from any obligations to any indemnified party other than the indemnification obligation provided in paragraph (a) or (b) above.  The indemnifying party shall be entitled to appoint counsel of the indemnifying party’s choice at the indemnifying party’s expense to represent the indemnified party in any action for which indemnification is sought (in which case the indemnifying party shall not thereafter be responsible for the fees and expenses of any separate counsel retained by the indemnified party or parties except as set forth below); provided, however, that such counsel shall be reasonably satisfactory to the indemnified party.  In case any such action is brought against any indemnified party, and it notifies the indemnifying party of the commencement thereof, the indemnifying party will be entitled to participate therein, and to the extent that it may elect by written notice delivered to the indemnified party promptly after receiving the aforesaid notice from such indemnified party, to assume the defense thereof.  Notwithstanding the indemnifying party’s election to appoint counsel to represent the indemnified party in an action, the indemnified party shall have the right to employ separate counsel (including local counsel), and the indemnifying party shall bear the reasonable fees, costs and expenses of such separate counsel if (i) the use of counsel chosen by the indemnifying party to represent the indemnified party would present such counsel with a conflict of interest, (ii) the actual or potential defendants in, or targets of, any such action include both the indemnified party and the indemnifying party and the indemnified party shall have reasonably concluded that there may be legal defenses available to it and/or other indemnified parties which are different from or additional to those available to the indemnifying party, (iii) the indemnifying party shall not have employed counsel satisfactory to the indemnified party to represent the indemnified party within a reasonable time after notice of the institution of such action or (iv) the indemnifying party shall authorize the indemnified party to employ separate counsel at the expense of the indemnifying party.  An indemnifying party will not, without the prior written consent of the indemnified parties, settle or compromise or consent to the entry of any judgment with respect to any pending or threatened claim, action, suit or proceeding in respect of which indemnification or contribution may be sought hereunder unless such settlement, compromise or consent includes an unconditional release of each indemnified party from all liability arising out of such claim, action, suit or proceeding.  An indemnifying party will not be liable for any settlement entered into by any indemnified party without the indemnifying party’s consent, but if settled with its written consent or if there is a final judgment for the plaintiff in any such action, the indemnifying party agrees to indemnify and hold harmless any indemnified party from and against any loss or liability by reason of such settlement or judgment.

(d)  In the event that the indemnity provided in paragraph (a) or (b) of this Section 8 is unavailable to or insufficient to hold harmless an indemnified party for any reason, the Company and the Underwriters severally agree to contribute to the aggregate losses, claims, damages and liabilities (including legal or other expenses reasonably incurred in connection with investigating or defending same) (collectively “Losses”) to which the Company and one or more of the Underwriters may be subject in such proportion as is appropriate to reflect the relative benefits received by the Company on the one hand and by the Underwriters on the other from the offering of the Notes; provided, however, that in no case shall any Underwriter (except as may be provided in any agreement among underwriters relating to the offering of the Notes) be responsible for any amount in excess of the underwriting discount or commission applicable to

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the Notes purchased by such Underwriter hereunder.  If the allocation provided by the immediately preceding sentence is unavailable for any reason, the Company and the Underwriters severally shall contribute in such proportion as is appropriate to reflect not only such relative benefits but also the relative fault of the Company on the one hand and of the Underwriters on the other in connection with the statements or omissions which resulted in such Losses as well as any other relevant equitable considerations.  Benefits received by the Company shall be deemed to be equal to the total net proceeds from the offering (before deducting expenses) received by it, and benefits received by the Underwriters shall be deemed to be equal to the total underwriting discounts and commissions, in each case as set forth on the cover page of the Final Prospectus.  Relative fault shall be determined by reference to, among other things, whether any untrue or any alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information provided by the Company on the one hand or the Underwriters on the other, the intent of the parties and their relative knowledge, access to information and opportunity to correct or prevent such untrue statement or omission.  The Company and the Underwriters agree that it would not be just and equitable if contribution were determined by pro rata allocation or any other method of allocation which does not take account of the equitable considerations referred to above.  Notwithstanding the provisions of this paragraph (d), no person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation.  For purposes of this Section 8, each person who controls an Underwriter within the meaning of either the Act or the Exchange Act and each director, officer, employee and agent of an Underwriter shall have the same rights to contribution as such Underwriter, and each person who controls the Company within the meaning of either the Act or the Exchange Act, each officer of the Company who shall have signed the Registration Statement and each director of the Company shall have the same rights to contribution as the Company, subject in each case to the applicable terms and conditions of this paragraph (d).

9.  Default by an Underwriter.  If, on the Closing Date any one or more Underwriters shall fail to purchase and pay for any of the Notes agreed to be purchased by such Underwriter or Underwriters hereunder and such failure to purchase shall constitute a default in the performance of its or their obligations under this Agreement, the remaining Underwriters shall be obligated severally to take up and pay for (in the respective proportions which the principal amount of Notes set forth opposite their names in Schedule II hereto bears to the aggregate principal amount of Notes set forth opposite the names of all the remaining Underwriters) the Notes which the defaulting Underwriter or Underwriters agreed but failed to purchase; provided, however, that if, on the Closing Date, the aggregate principal amount of Notes which the defaulting Underwriter or Underwriters agreed but failed to purchase shall exceed 10% of the aggregate principal amount of Notes set forth in Schedule I hereto, the remaining Underwriters shall have the right to purchase all, but shall not be under any obligation to purchase any, of the Notes, and if such nondefaulting Underwriters do not purchase all the Notes, this Agreement will terminate without liability to any nondefaulting Underwriter or the Company, except for the payment of expenses to be borne by the Company and the Underwriters as provided herein and the indemnity and contribution agreements of the Company and the Underwriters contained herein.  In the event of a default by any Underwriter as set forth in this Section 9, the Closing Date shall be postponed for such period, not exceeding five Business Days, as the Representatives shall determine in order that the required changes in the Registration Statement and the Final Prospectus or in any other documents or arrangements may

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be effected.  Nothing contained in this Agreement shall relieve any defaulting Underwriter of its liability, if any, to the Company and any nondefaulting Underwriter for damages occasioned by its default hereunder.

10.  Termination.  This Agreement shall be subject to termination in the absolute discretion of the Representatives, by notice given to the Company prior to delivery of and payment for the Notes, if at any time prior to such time (i) trading in the common stock of the Company or the preferred stock of Duquesne Light Company shall have been suspended by the Commission or trading in securities generally on the New York Stock Exchange, the American Stock Exchange or in the over-the-counter market shall have been suspended or limited or the settlement of such trading shall have been materially disrupted or minimum prices shall have been established on any such exchange or market, (ii) a banking moratorium shall have been declared either by Federal or New York State authorities or (iii) there shall have occurred any outbreak or escalation of hostilities, declaration by the United States of a national emergency or war, or other calamity or crisis the effect of which on financial markets is such as to make it, in the sole judgment of the Representatives, impractical or inadvisable to proceed with the offering or delivery of the Notes by the Final Prospectus (exclusive of any supplement thereto).

11.  Representations and Indemnities to Survive.  The respective agreements, representations, warranties, indemnities and other statements of the Company or its officers and of the Underwriters set forth in or made pursuant to this Agreement will remain in full force and effect, regardless of any investigation made by or on behalf of any Underwriter or the Company or any of the officers, directors, employees, agents or controlling persons referred to in Section 8 hereof, and will survive delivery of and payment for the Notes.  The provisions of Sections 7 and 8 hereof shall survive the termination or cancellation of this Agreement.

12.  Notices.  All communications hereunder will be in writing and effective only on receipt, and, if sent to the Representatives, will be mailed, delivered or telefaxed to J.P. Morgan Securities Inc., 270 Park Avenue, New York, New York 10017, Attention: High Grade Syndicate Desk (Fax: (212) 834-6081), and Lehman Brothers Inc., 745 Seventh Avenue, New York, New York 10019, Attention: Debt Capital Markets, Power Group (Fax: (212) 526-0943),  with a copy, in the case of any notice pursuant to Section 8(c), to J.P. Morgan Securities Inc., 270 Park Avenue, New York, New York 10017, Attention: Legal Department, Stuart D. Fishman, and Lehman Brothers Inc., 745 Seventh Avenue, New York, New York 10019, Attention: General Counsel, respectively, or, if sent to the Company, will be mailed, delivered or telefaxed to ###-###-#### and confirmed to it at 411 Seventh Avenue, P.O. Box 1930, Pittsburgh, Pennsylvania 15230, attention of the Treasurer.

13.  Successors.  This Agreement will inure to the benefit of and be binding upon the parties hereto and their respective successors and the officers, directors, employees, agents and controlling persons referred to in Section 8 hereof, and no other person will have any right or obligation hereunder.

14.  Applicable Law.  This Agreement will be governed by and construed in accordance with the laws of the State of New York applicable to contracts made and to be performed within the State of New York without regard to the conflict of laws principles that would result in the application of any law other than the law of the State of New York.

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15.  Counterparts.  This Agreement may be signed in one or more counterparts, each of which shall constitute an original and all of which together shall constitute one and the same agreement.

16.  Headings.  The section headings used herein are for convenience only and shall not affect the construction hereof.

17.  Definitions.  The terms which follow, when used in this Agreement, shall have the meanings indicated.

“Act” shall mean the Securities Act of 1933, as amended, and the rules and regulations of the Commission promulgated thereunder.

“Basic Prospectus” shall mean the prospectus referred to in paragraph 1(a) above contained in the Registration Statement at the Effective Date including any Preliminary Final Prospectus.

“Business Day” shall mean any day other than a Saturday, a Sunday or a legal holiday or a day on which banking institutions or trust companies are authorized or obligated by law to close in New York City or Pittsburgh, Pennsylvania.

“Commission” shall mean the Securities and Exchange Commission.

“Effective Date” shall mean each date and time that the Registration Statement, any post-effective amendment or amendments thereto and any Rule 462(b) Registration Statement became or become effective.

“Exchange Act” shall mean the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated thereunder.

“Execution Time” shall mean the date and time that this Agreement is executed and delivered by the parties hereto.

“Final Prospectus” shall mean the prospectus supplement relating to the Notes that was first filed pursuant to Rule 424(b) after the Execution Time, together with the Basic Prospectus.

“Preliminary Final Prospectus” shall mean any preliminary prospectus supplement to the Basic Prospectus which describes the Notes and the offering thereof and is used prior to filing of the Final Prospectus, together with the Basic Prospectus.

“Registration Statement” shall mean the registration statement referred to in paragraph 1(a) above, including exhibits and financial statements, as amended at the Execution Time (or, if not effective at the Execution Time, in the form in which it shall become effective) and, in the event any post-effective amendment thereto or any Rule 462(b) Registration Statement becomes effective prior to the Closing Date, shall also mean such registration statement as so amended or such Rule 462(b) Registration Statement, as the case may be.

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“Rule 415”, “Rule 424” and “Rule 462” refer to such rules under the Act.

“Rule 462(b) Registration Statement” shall mean a registration statement and any amendments thereto filed pursuant to Rule 462(b) relating to the offering covered by the registration statement referred to in Section 1(a) hereof.

“Trust Indenture Act” shall mean the Trust Indenture Act of 1939, as amended, and the rules and regulations of the Commission promulgated thereunder.

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If the foregoing is in accordance with your understanding of our agreement, please sign and return to us the enclosed duplicate hereof, whereupon this letter and your acceptance shall represent a binding agreement among the Company and the several Underwriters.

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The foregoing Agreement is

hereby confirmed and accepted

as of the date specified in

Schedule I hereto.

Accepted:

J.P. Morgan Securities Inc.

Lehman Brothers Inc.

For themselves and as Representatives

of the several Underwriters named

in Schedule II hereto

J.P. Morgan Securities Inc.

Lehman Brothers Inc.

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SCHEDULE I

2

SCHEDULE II