Exhibit 4-D


                                 GUARANTEE AGREEMENT

                                       Between

                            Delmarva Power & Light Company
                                    (as Guarantor)

                                         and

                               Wilmington Trust Company
                                     (as Trustee)

                                     dated as of

                                 _____________, 1996


      

                                  TABLE OF CONTENTS
                                  -----------------

                                                                       Page
                                                                      -----

               ARTICLE I    DEFINITIONS . . . . . . . . . . . . . . . .   1
                    SECTION 1.01   Definitions  . . . . . . . . . . . .   1

         
               ARTICLE II   TRUST INDENTURE ACT . . . . . . . . . . . .   3
                    SECTION 2.01   Conflict with Trust Indenture Act  .   3
                    SECTION 2.02   Lists of Holders of Preferred
                                   Securities . . . . . . . . . . . . .   3
                    SECTION 2.03   Reports by the Guarantee Trustee . .   3
                    SECTION 2.04   Periodic Reports to Guarantee
                                   Trustee. . . . . . . . . . . . . . .   4
                    SECTION 2.06   Events of Default; Waiver  . . . . .   4
                    SECTION 2.07   Event of Default; Notice . . . . . .   4

               ARTICLE III  POWERS, DUTIES AND RIGHTS OF GUARANTEE
                            TRUSTEE . . . . . . . . . . . . . . . . . .   5
                    SECTION 3.01   Powers and Duties of the Guarantee
                                   Trustee. . . . . . . . . . . . . . .   5
                    SECTION 3.02   Certain Rights of Guarantee
                                   Trustee. . . . . . . . . . . . . . .   6

               ARTICLE IV     GUARANTEE TRUSTEE . . . . . . . . . . . .   8
                    SECTION 4.01   Guarantee Trustee; Eligibility . . .   8
                    SECTION 4.02   Compensation and Reimbursement . . .   9
                    SECTION 4.03   Appointment, Removal and
                                   Resignation of Guarantee Trustee . .  10

               ARTICLE V GUARANTEE  . . . . . . . . . . . . . . . . . .  10
                    SECTION 5.01   Guarantee  . . . . . . . . . . . . .  10
                    SECTION 5.02   Waiver of Notice and Demand  . . . .  11
                    SECTION 5.03   Obligations Not Affected . . . . . .  11
                    SECTION 5.04   Rights of Holders  . . . . . . . . .  12
                    SECTION 5.05   Guarantee of Payment . . . . . . . .  12
                    SECTION 5.06   Subrogation  . . . . . . . . . . . .  12
                    SECTION 5.07   Independent Obligations  . . . . . .  12

               ARTICLE VI     SUBORDINATION . . . . . . . . . . . . . .  13
                    SECTION 6.01   Subordination  . . . . . . . . . . .  13

               ARTICLE VII    TERMINATION . . . . . . . . . . . . . . .  13
                    SECTION 7.01   Termination  . . . . . . . . . . . .  13

               ARTICLE VIII   MISCELLANEOUS . . . . . . . . . . . . . .  13
                    SECTION 8.01   Successors and Assigns . . . . . . .  13
                    SECTION 8.02   Amendments . . . . . . . . . . . . .  13
                    SECTION 8.03   Notices  . . . . . . . . . . . . . .  14
                    SECTION 8.04   Benefit  . . . . . . . . . . . . . .  15
                    SECTION 8.05   Interpretation . . . . . . . . . . .  15
                    SECTION 8.06   Governing Law  . . . . . . . . . . .  15
         

     
                                CROSS-REFERENCE TABLE
                                ---------------------


          Section of                                             Section of
          Trust Indenture Act                                    Guarantee
          of 1939, as amended                                    Agreement
          ------------------                                     ---------


          310(a)  . . . . . . . . . . . . . . . . . . . . . . . . . 4.01(a)
          310(b)  . . . . . . . . . . . . . . . . . . . . . . 4.01(c), 2.08
          310(c)  . . . . . . . . . . . . . . . . . . . . . .  Inapplicable
          311(a)  . . . . . . . . . . . . . . . . . . . . . . . . . 2.02(b)
          311(b)  . . . . . . . . . . . . . . . . . . . . . . . . . 2.02(b)
          311(c)  . . . . . . . . . . . . . . . . . . . . . .  Inapplicable
          312(a)  . . . . . . . . . . . . . . . . . . . . . . . . . 2.02(a)
          312(b)  . . . . . . . . . . . . . . . . . . . . . . . . . 2.02(b)
          313 . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2.03
          314(a)  . . . . . . . . . . . . . . . . . . . . . . . . . .  2.04
          314(b)  . . . . . . . . . . . . . . . . . . . . . .  Inapplicable
          314(c)  . . . . . . . . . . . . . . . . . . . . . . . . . .  2.05
          314(d)  . . . . . . . . . . . . . . . . . . . . . .  Inapplicable
          314(e)  . . . . . . . . . . . . . . . . . . . . . . . 1.01, 2.05, 
                                                                       3.02
          314(f)  . . . . . . . . . . . . . . . . . . . . . . .  2.01, 3.02
          315(a)  . . . . . . . . . . . . . . . . . . . . . . . . . 3.01(c)
          315(b)  . . . . . . . . . . . . . . . . . . . . . . . . . .  2.07
          315(c)  . . . . . . . . . . . . . . . . . . . . . . . . . .  3.01
          315(d)  . . . . . . . . . . . . . . . . . . . . . . . . . 3.01(c)
          316(a)  . . . . . . . . . . . . . . . . . . . . . . 5.04(a), 2.06
          316(b)  . . . . . . . . . . . . . . . . . . . . . . . . . .  5.03
          316(c)  . . . . . . . . . . . . . . . . . . . . . . . . . .  2.02
          317(a)  . . . . . . . . . . . . . . . . . . . . . .  Inapplicable
          317(b)  . . . . . . . . . . . . . . . . . . . . . .  Inapplicable
          318(a)  . . . . . . . . . . . . . . . . . . . . . . . . . 2.01(b)
          318(b)  . . . . . . . . . . . . . . . . . . . . . . . . . .  2.01
          318(c)  . . . . . . . . . . . . . . . . . . . . . . . . . 2.01(a)

          ------------
          *    This Cross-Reference Table does not constitute part of the
               Guarantee Agreement and shall not affect the interpretation
               of any of its terms or provisions.

     

                                 GUARANTEE AGREEMENT

                    This GUARANTEE AGREEMENT ("Guarantee Agreement"), dated
          as of ______________, 1996, is executed and delivered by Delmarva
          Power & Light Company, a Delaware and Virginia corporation (the
          "Guarantor"), and Wilmington Trust Company, as trustee (the
          "Guarantee Trustee"), for the benefit of the Holders (as defined
          herein) from time to time of the Preferred Securities (as defined
          herein) of Delmarva Power Financing I, a Delaware statutory
          business trust (the "Issuer").

        
                    WHEREAS, pursuant to an Amended and Restated Trust
          Agreement (the "Trust Agreement"), dated as of ______________,
          1996, between the Trustees of the Issuer named therein and
          Delmarva Power & Light Company, as Depositor, the Issuer is
          issuing as of the date hereof $______________ aggregate
          liquidation amount of its ____% Trust Preferred Capital
          Securities (the "Preferred Securities") representing preferred
          undivided beneficial ownership interests in the Issuer and having
          the terms set forth in the Trust Agreement;
         

                    WHEREAS, the Preferred Securities are to be issued for
          sale by the Issuer and the proceeds are to be invested in
          $______________ principal amount of Debentures (as defined in the
          Trust Agreement); and 

                    WHEREAS, in order to enhance the value of the Preferred
          Securities, the Guarantor desires to irrevocably and
          unconditionally agree, to the extent set forth herein, to pay to
          the Holders the Guarantee Payments (as defined herein) and to
          make certain other payments on the terms and conditions set forth
          herein;

                    NOW, THEREFORE, in consideration of the purchase of
          Debentures, which purchase the Guarantor hereby agrees shall
          benefit the Guarantor, the Guarantor executes and delivers this
          Guarantee Agreement for the benefit of the Holders from time to
          time.


                                      ARTICLE I

                                     DEFINITIONS

                    SECTION 1.01   DEFINITIONS.  As used in this Guarantee
          Agreement, the terms set forth below shall, unless the context
          otherwise requires, have the following meanings.  Capitalized or
          otherwise defined terms used but not otherwise defined herein
          shall have the meanings assigned to such terms in the Trust
          Agreement as in effect on the date hereof.

        
         

                    "Event of Default" means a default by the Guarantor on
          any of its payment obligations under this Guarantee Agreement.

         
                    "Guarantee Payments" shall mean the following payments
          or distributions, without duplication, with respect to the
          Preferred Securities, to the extent not paid or made by or on
          behalf of the Issuer:  (a) any accrued and unpaid Distributions
          that are required to be paid on such Preferred Securities but
          only if and to the extent that the Property Trustee has available
          in the Payment Account funds sufficient to make such payment, (b)
          the Redemption Price with respect to the Preferred Securities
          called for redemption by the Issuer but only if and to the extent
          that the Property Trustee has available in the Payment Account
          funds sufficient to make such payment, (c) upon a voluntary or
          involuntary dissolution, winding-up or termination of the Issuer
          (unless the Debentures are distributed to the Holders of such
          Preferred Securities), the lesser of (i) the aggregate of the
          Liquidation Amount and all accrued and unpaid Distributions on
          the Preferred Securities to the date of payment, and (ii) the
          amount of assets of the Issuer remaining available for
          distribution to Holders in liquidation of the Issuer (the
          "Liquidation Distribution").
         

                    "Guarantee Trustee" means Wilmington Trust Company
          until a Successor Guarantee Trustee has been appointed and has
          accepted such appointment pursuant to the terms of this Guarantee
          Agreement and thereafter means each such Successor Guarantee
          Trustee.

        
                    "Holder" shall mean any Person in whose name any
          Preferred Securities are registered in the Securities Registrar;
          provided, however, that, in determining whether the Holders of
          the requisite percentage of Preferred Securities have given any
          request, notice, consent or waiver hereunder, "Holder" shall not
          include the Guarantor or any Affiliate of the Guarantor.
         

                    "Indenture" means the Indenture dated as of
          ______________, 1996, between the Guarantor (the "Debenture
          Issuer") and Wilmington Trust Company, as trustee, pursuant to
          which the Debentures are issued.

        
         

        
                    "Officer's Certificate" means a certificate signed by
          the Chairman of the Board, the President, a Vice President, the
          Treasurer or an Assistant Treasurer of the Guarantor, and
          delivered to the Guarantee Trustee.  Any Officer's Certificate
          delivered with respect to compliance with a condition or covenant
          provided for in this Guarantee Agreement shall include:
         

        
                    (a)  a statement that the officer signing the Officer's
               Certificate has read the covenant or condition and the
               definitions relating thereto;
         

        
                    (b)  a brief statement of the nature and scope of the
               examination or investigation undertaken by such officer in
               rendering the Officer's Certificate;
         

                    (c)  a statement that such officer has made such
               examination or investigation as, in such officer's opinion,
               is necessary to enable such officer to express an informed
               opinion as to whether or not such covenant or condition has
               been complied with; and

                    (d)  a statement as to whether, in the opinion of such
               officer, such condition or covenant has been complied with.

        
         

        
                    "Responsible Officer" means, with respect to the
          Guarantee Trustee, any officer of the Guarantee Trustee assigned
          by the Guarantee Trustee to administer its corporate trust
          matters.
         

                    "Successor Guarantee Trustee" means a successor
          Guarantee Trustee possessing the qualifications to act as
          Guarantee Trustee under Section 4.01.

        
         



                                      ARTICLE II

                                 TRUST INDENTURE ACT

        
                    SECTION 2.01   CONFLICT WITH TRUST INDENTURE ACT.
         

        
                    If any provision of this Guarantee Agreement limits,
          qualifies or conflicts with another provision hereof which is
          required or deemed to be included in this Guarantee Agreement by,
          or is otherwise governed by, any of the provisions of the Trust
          Indenture Act, such other provision shall control; and if any
          provision hereof otherwise conflicts with the Trust Indenture
          Act, the Trust Indenture Act shall control.
         

                    SECTION 2.02   LISTS OF HOLDERS OF PREFERRED
                                   SECURITIES.

        
                    (a)  Semiannually, not later than June 1 and December 1
          in each year, commencing December 1, 1996, and at such other
          times as the Guarantee Trustee may request in writing, the
          Guarantor shall furnish or cause to be furnished to the Guarantee
          Trustee information as to the names and addresses of the Holders,
          and the Guarantee Trustee shall preserve such information and
          similar information received by it in any other capacity and
          afford to the Holders access to information received by it in any
          other capacity and afford to the Holders access to information so
          preserved by it, all to such extent, if any, and in such manner
          as shall be required by the Trust Indenture Act.
         

                    (b)  The Guarantee Trustee shall comply with its
          obligations under Section 311(a) of the Trust Indenture Act,
          subject to the provisions of Section 311(b) and Section 312(b) of
          the Trust Indenture Act.

                       
                    SECTION 2.03   REPORTS BY THE GUARANTEE TRUSTEE.  (a) 
          The Guarantee Trustee shall transmit to Holders such reports
          concerning the Guarantee Trustee and its actions under this
          Guarantee Agreement as may be required pursuant to the Trust
          Indenture Act at the times and in the manner provided pursuant
          thereto.  Such of those reports as are required to be transmitted
          by the Guarantee Trustee pursuant to Section 313(a) of the Trust
          Indenture Act shall be so transmitted within 60 days after
          December 31 of each year, commencing December 31, 1996.
         

        
                    (b)  A copy of each such report shall, at the time of
          such transmission to Holders, be filed by the Guarantee Trustee
          with each stock exchange upon which the Preferred Securities are
          listed, with the Commission and with the Guarantor.  The
          Guarantor shall notify the Guarantee Trustee when any Preferred
          Securities shall have been listed on any stock exchange.
         

        
                    SECTION 2.04   PERIODIC REPORTS TO GUARANTEE TRUSTEE. 
          The Guarantor shall provide to the Guarantee Trustee such
          documents, reports, compliance certificates and information as
          may be required by Section 314 of the Trust Indenture Act in the
          form, in the manner and at the times required thereby.  
         

        
                    SECTION 2.05   EVIDENCE OF COMPLIANCE WITH CONDITIONS
          PRECEDENT.  The Guarantor shall provide to the Guarantee Trustee
          such evidence of compliance with any conditions precedent
          provided for in this Guarantee Agreement as and to the extent
          required by Section 314(c) of the Trust Indenture Act.  Any
          certificate or opinion required to be given by an officer
          pursuant to Section 314(c)(1) of the Trust Indenture Act may be
          given in the form of an Officer's Certificate.
         

        
                    SECTION 2.06   EVENTS OF DEFAULT; WAIVER.  The Holders
          of a majority in liquidation amount of Outstanding Preferred
          Securities may, by vote, on behalf of all of the Holders, waive
          any past Event of Default and its consequences.  Upon such
          waiver, any such Event of Default shall cease to exist, and any
          Event of Default arising therefrom shall be deemed to have been
          cured, for every purpose of this Guarantee Agreement, but no such
          waiver shall extend to any subsequent or other default or Event
          of Default or impair any right consequent thereon.
         

                    SECTION 2.07   EVENT OF DEFAULT; NOTICE.

        
                    (a)  The Guarantee Trustee shall give notice of any
          Event of Default hereunder to the Holders in the manner and to
          the extent required to do so by the Trust Indenture Act, unless
          such Event of Default shall have been cured or waived.
         

        
                    (b)  The Guarantee Trustee shall not be deemed to have
          knowledge of any Event of Default unless the Guarantee Trustee
          shall have received written notice of such Event of Default.
         

        
         

                                     ARTICLE III

                    POWERS, DUTIES AND RIGHTS OF GUARANTEE TRUSTEE

                    SECTION 3.01   POWERS AND DUTIES OF THE GUARANTEE
                                   TRUSTEE.

                    (a)  This Guarantee Agreement shall be held by the
          Guarantee Trustee for the benefit of the Holders, and the
          Guarantee Trustee shall not transfer this Guarantee Agreement or
          any rights hereunder to any Person except a Holder exercising his
          or her rights pursuant to Section 5.04 or to a Successor
          Guarantee Trustee on acceptance by such Successor Guarantee
          Trustee of its appointment to act as Successor Guarantee Trustee. 
          The right, title and interest of the Guarantee Trustee shall vest
          automatically in any Successor Guarantee Trustee, and such
          vesting and cessation of title shall be effective whether or not
          conveyancing documents have been executed and delivered pursuant
          to the appointment of such Successor Guarantee Trustee.

                    (b)  The Guarantee Trustee, prior to the occurrence of
          any Event of Default and after the curing of all Events of
          Default that may have occurred, shall undertake to perform only
          such duties as are specifically set forth in this Guarantee
          Agreement, and no implied covenants or obligations shall be read
          into this Guarantee Agreement against the Guarantee Trustee.  In
          case an Event of Default has occurred (that has not been cured or
          waived pursuant to Section 2.06), the Guarantee Trustee shall
          exercise such of the rights and powers vested in it by this
          Guarantee Agreement, and use the same degree of care and skill in
          its exercise thereof, as a prudent person would exercise or use
          under the circumstances in the conduct of his or her own affairs.

                    (c)  No provision of this Guarantee Agreement shall be
          construed to relieve the Guarantee Trustee from liability for its
          own negligent action, its own negligent failure to act, or its
          own willful misconduct, except that:

                          (i)  prior to the occurrence of any Event of
                    Default and after the curing or waiving of all such
                    Events of Default that may have occurred:

                              (A)  the duties and obligations of the
                         Guarantee Trustee shall be determined solely by
                         the express provisions of this Guarantee
                         Agreement, and the Guarantee Trustee shall not be
                         liable except for the performance of such duties
                         and obligations as are specifically set forth in
                         this Guarantee Agreement; and

                              (B)  in the absence of bad faith on the part
                         of the Guarantee Trustee, the Guarantee Trustee
                         may conclusively rely, as to the truth of the
                         statements and the correctness of the opinions
                         expressed therein, upon any certificates or
                         opinions furnished to the Guarantee Trustee and
                         conforming to the requirements of this Guarantee
                         Agreement; provided, however, that in the case of
                         any such certificates or opinions that by any
                         provision hereof are specifically required to be
                         furnished to the Guarantee Trustee, the Guarantee
                         Trustee shall be under a duty to examine the same
                         to determine whether or not they conform to the
                         requirements of this Guarantee Agreement;

                         (ii)  the Guarantee Trustee shall not be liable
                    for any error of judgment made in good faith by a
                    Responsible Officer of the Guarantee Trustee, unless it
                    shall be proved that the Guarantee Trustee or such
                    Responsible Officer was negligent in ascertaining the
                    pertinent facts upon which such judgment was made; 

                         (iii)  the Guarantee Trustee shall not be liable
                    with respect to any action taken or omitted to be taken
                    by it in good faith in accordance with the direction of
                    the Holders of a Majority in liquidation amount of the
                    Preferred Securities relating to the time, method and
                    place of conducting any proceeding for any remedy
                    available to the Guarantee Trustee, or exercising any
                    trust or power conferred upon the Guarantee Trustee
                    under this Guarantee Agreement; and

                         (iv)  no provision of this Guarantee Agreement
                    shall require the Guarantee Trustee to expend or risk
                    its own funds or otherwise incur personal financial
                    liability in the performance of any of its duties or in
                    the exercise of any of its rights or powers, if the
                    Guarantee Trustee shall have reasonable grounds for
                    believing that the repayment of such funds or liability
                    is not reasonably assured to it under the terms of this
                    Guarantee Agreement or adequate indemnity against such
                    risk or liability is not reasonably assured to it.

                    SECTION 3.02   CERTAIN RIGHTS OF GUARANTEE TRUSTEE.

                    (a)  Subject to the provisions of Section 3.01:

                              (i)  the Guarantee Trustee may rely and shall
                    be fully protected in acting or refraining from acting
                    upon any resolution, certificate, statement,
                    instrument, opinion, report, notice, request,
                    direction, consent, order, bond, debenture, note, other
                    evidence of indebtedness or other paper or document
                    reasonably believed by it to be genuine and to have
                    been signed, sent or presented by the proper party or
                    parties;

        
                              (ii) any direction or act of the Guarantor
                    contemplated by this Guarantee Agreement shall be
                    sufficiently evidenced by an Officer's Certificate;
         

        
                              (iii)     whenever, in the administration of
                    this Guarantee Agreement, the Guarantee Trustee shall
                    deem it desirable that a matter be proved or
                    established before taking, suffering or omitting any
                    action hereunder, the Guarantee Trustee (unless other
                    evidence is herein specifically prescribed) may, in the
                    absence of bad faith on its part, request and rely upon
                    an Officer's Certificate which, upon receipt of such
                    request, shall be promptly delivered by the Guarantor;
         

                              (iv) the Guarantee Trustee may consult with
                    counsel of its choice, and the written advice or
                    opinion of such counsel with respect to legal matters
                    shall be full and complete authorization and protection
                    in respect of any action taken, suffered or omitted by
                    it hereunder in good faith and in accordance with such
                    advice or opinion; such counsel may be counsel to the
                    Guarantor or any of its Affiliates and may include any
                    of its employees; the Guarantee Trustee shall have the
                    right at any time to seek instructions concerning the
                    administration of this Guarantee Agreement from any
                    court of competent jurisdiction;

                              (v)  the Guarantee Trustee shall be under no
                    obligation to exercise any of the rights or powers
                    vested in it by this Guarantee Agreement at the request
                    or direction of any Holder, unless such Holder shall
                    have provided to the Guarantee Trustee such adequate
                    security and indemnity as would satisfy a reasonable
                    person in the position of the Guarantee Trustee,
                    against the costs, expenses (including attorneys' fees
                    and expenses) and liabilities that might be incurred by
                    it in complying with such request or direction,
                    including such reasonable advances as may be requested
                    by the Guarantee Trustee; provided, however, that
                    nothing contained in this Section 3.02(a)(v) shall be
                    taken to relieve the Guarantee Trustee, upon the
                    occurrence of an Event of Default, of its obligation to
                    exercise the rights and powers vested in it by this
                    Guarantee Agreement;

                              (vi) the Guarantee Trustee shall not be bound
                    to make any investigation into the facts or matters
                    stated in any resolution, certificate, statement,
                    instrument, opinion, report, notice, request,
                    direction, consent, order, bond, debenture, note, other
                    evidence of indebtedness or other paper or document
                    reasonably believed by it to be genuine, but the
                    Guarantee Trustee, in its discretion, may make such
                    further inquiry or investigation into such facts or
                    matters as it may see fit;

                              (vii)     the Guarantee Trustee may execute
                    any of the trusts or powers hereunder or perform any
                    duties hereunder either directly or by or through
                    agents or attorneys, and the Guarantee Trustee shall
                    not be responsible for any misconduct or negligence on
                    the part of any agent or attorney appointed with due
                    care by it hereunder;

                              (viii)    whenever in the administration of
                    this Guarantee Agreement the Guarantee Trustee shall
                    deem it desirable to receive instructions with respect
                    to enforcing any remedy or right or taking any other
                    action hereunder, the Guarantee Trustee (A) may request
                    instructions from the Holders, (B) may refrain from
                    enforcing such remedy or right or taking such other
                    action until such instructions are received, and (C)
                    shall be protected in acting in accordance with such
                    instructions; and 

                              (ix) the Guarantee Trustee shall not be
                    liable for any action taken, suffered or omitted to be
                    taken by it in good faith and reasonably believed by it
                    to be authorized or within the discretion or rights or
                    powers conferred upon it by this Guarantee.

                    (b)  No provision of this Guarantee Agreement shall be
          deemed to impose any duty or obligation on the Guarantee Trustee
          to perform any act or acts or exercise any right, power, duty or
          obligation conferred or imposed on it in any jurisdiction in
          which it shall be illegal, or in which the Guarantee Trustee
          shall be unqualified or incompetent in accordance with applicable
          law, to perform any such act or acts or to exercise any such
          right, power, duty or obligation.  No permissive power or
          authority available to the Guarantee Trustee shall be construed
          to be a duty.


                                      ARTICLE IV

                                  GUARANTEE TRUSTEE

                    SECTION 4.01   GUARANTEE TRUSTEE; ELIGIBILITY.

                    (a)  There shall at all times be a Guarantee Trustee
               which shall:

                         (i)  not be an Affiliate of the Guarantor; and

                         (ii)  be a corporation organized and doing
                    business under the laws of the United States of America
                    or any State or Territory thereof or of the District of
                    Columbia, or a corporation or Person permitted by the
                    Securities and Exchange Commission to act as an
                    institutional trustee under the Trust Indenture Act,
                    authorized under such laws to exercise corporate trust
                    powers, having a combined capital and surplus of at
                    least 50 million U.S. dollars ($50,000,000), and
                    subject to supervision or examination by Federal,
                    State, Territorial or District of Columbia authority. 
                    If such corporation publishes reports of condition at
                    least annually, pursuant to law or to the requirements
                    of the supervising or examining authority referred to
                    above, then, for the purposes of this Section
                    4.01(a)(ii), the combined capital and surplus of such
                    corporation shall be deemed to be its combined capital
                    and surplus as set forth in its most recent report of
                    condition so published.

                    (b)  If at any time the Guarantee Trustee shall cease
          to be eligible to so act under Section 4.01(a), the Guarantee
          Trustee shall immediately resign in the manner and with the
          effect set out in Section 4.03(c).

                    (c)  If the Guarantee Trustee has or shall acquire any
          "conflicting interest" within the meaning of Section 310(b) of
          the Trust Indenture Act, the Guarantee Trustee and Guarantor
          shall in all respects comply with the provisions of Section
          310(b) of the Trust Indenture Act.

                    SECTION 4.02   COMPENSATION AND REIMBURSEMENT.

                    The Guarantor agrees:

                    (a)  to pay the Guarantee Trustee from time to time
          such reasonable compensation as the Guarantor and the Guarantee
          Trustee shall from time to time agree in writing for all services
          rendered by it hereunder (which compensation shall not be limited
          by any provision of law in regard to the compensation of a
          trustee of an express trust);

                    (b)  except as otherwise expressly provided herein, to
          reimburse the Guarantee Trustee upon its request for all
          reasonable expenses, disbursements and advances incurred or made
          by the Guarantee Trustee in accordance with the provisions of
          this Guarantee (including the reasonable compensation and
          expenses of its agents and counsel), except any such expense,
          disbursement or advance as may be attributable to its negligence
          or bad faith; and

                    (c)  to indemnify each of the Guarantee Trustee and any
          predecessor Guarantee Trustee for, and to hold it harmless from
          and against, any and all loss, damage, claim, liability or
          expense, including taxes (other than taxes based upon the income
          of the Guarantee Trustee) incurred without negligence or bad
          faith on its part, arising out of or in connection with the
          acceptance of the administration of this Guarantee Agreement,
          including the costs and expenses of defending itself against any
          claim or liability in connection with the exercise or performance
          of any its powers or duties hereunder.

                    As security for the performance of the obligations of
          the Guarantor under this Section, the Guarantee Trustee shall
          have a lien prior to the Preferred Securities upon all the
          property and funds held or collected by the Guarantee Trustee as
          such, except funds held in trust for the payment of principal of,
          and premium (if any) or interest on, particular obligations of
          the Guarantor under this Guarantee Agreement.

                    The provisions of this Section shall survive the
          termination of this Guarantee Agreement.

                    SECTION 4.03   APPOINTMENT, REMOVAL AND RESIGNATION OF
                                   GUARANTEE TRUSTEE.

                    (a)  Subject to Section 4.03(b), unless an Event of
          Default shall have occurred and be continuing, the Guarantee
          Trustee may be appointed or removed without cause at any time by
          the Guarantor.

                    (b)  The Guarantee Trustee shall not be removed until a
          Successor Guarantee Trustee has been appointed and has accepted
          such appointment by written instrument executed by such Successor
          Guarantee Trustee and delivered to the Guarantor.

                    (c)  The Guarantee Trustee appointed to office shall
          hold office until a Successor Guarantee Trustee shall have been
          appointed or until its removal or resignation.  The Guarantee
          Trustee may resign from office (without need for prior or
          subsequent accounting) by an instrument in writing executed by
          the Guarantee Trustee and delivered to the Guarantor, which
          resignation shall not take effect until a Successor Guarantee
          Trustee has been appointed and has accepted such appointment by
          instrument in writing executed by such Successor Guarantee
          Trustee and delivered to the Guarantor and the resigning
          Guarantee Trustee.

                    (d)  If no Successor Guarantee Trustee shall have been
          appointed and accepted appointment as provided in this Section
          4.03 within 60 days after delivery to the Guarantor of an
          instrument of resignation, the resigning Guarantee Trustee may
          petition any court of competent jurisdiction for appointment of a
          Successor Guarantee Trustee.  Such court may thereupon, after
          prescribing such notice, if any, as it may deem proper, appoint a
          Successor Guarantee Trustee.

                    (e)  The Guarantor shall give notice of each
          resignation and each removal of the Guarantee Trustee and each
          appointment of a successor Guarantee Trustee to all Holders in
          the manner provided in Section 8.03 hereof.  Each notice shall
          include the name of the successor Guarantee Trustee and the
          address of its Corporate Trust Office.


                                      ARTICLE V

                                      GUARANTEE

                    SECTION 5.01   GUARANTEE.  The Guarantor irrevocably
          and unconditionally agrees to pay in full to the Holders the
          Guarantee Payments (without duplication of amounts theretofore
          paid by the Issuer), as and when due, regardless of any defense,
          right of set-off or counterclaim which the Issuer may have or
          assert.  The Guarantor's obligation to make a Guarantee Payment
          may be satisfied by direct payment of the required amounts by the
          Guarantor to the Holders or by causing the Issuer to pay such
          amounts to the Holders.

                    SECTION 5.02   WAIVER OF NOTICE AND DEMAND.  The
          Guarantor hereby waives notice of acceptance of this Guarantee
          Agreement and of any liability to which it applies or may apply,
          presentment, demand for payment, any right to require a
          proceeding first against the Issuer or any other Person before
          proceeding against the Guarantor, protest, notice of nonpayment,
          notice of dishonor, notice of redemption and all other notices
          and demands.

                    SECTION 5.03   OBLIGATIONS NOT AFFECTED.  The
          obligation of the Guarantor to make the Guarantee Payments under
          this Guarantee Agreement shall in no way be affected or impaired
          by reason of the happening from time to time of any of the
          following:

                    (a)  the release or waiver, by operation of law or
               otherwise, of the performance or observance by the Issuer of
               any express or implied agreement, covenant, term or
               condition relating to the Preferred Securities to be
               performed or observed by the Issuer;

                    (b)  the extension of time for the payment by the
               Issuer of all or any portion of the Distributions,
               Redemption Price, Liquidation Distribution or any other sums
               payable under the terms of the Preferred Securities or the
               extension of time for the performance of any other
               obligation under, arising out of, or in connection with, the
               Preferred Securities (other than an extension of time for
               payment of Distributions, Redemption Price, Liquidation
               Distribution or other sum payable that results from the
               extension of any interest payment period on the Debentures
               permitted by the Indenture);

                    (c)  any failure, omission, delay or lack of diligence
               on the part of the Holders to enforce, assert or exercise
               any right, privilege, power or remedy conferred on the
               Holders pursuant to the terms of the Preferred Securities,
               or any action on the part of the Issuer granting indulgence
               or extension of any kind;

                    (d)  the voluntary or involuntary liquidation,
               dissolution, sale of any collateral, receivership,
               insolvency, bankruptcy, assignment for the benefit of
               creditors, reorganization, arrangement, composition or
               readjustment of debt of, or other similar proceedings
               affecting, the Issuer or any of the assets of the Issuer;

                    (e)  any invalidity of, or defect or deficiency in, the
               Preferred Securities;

                    (f)  the settlement or compromise of any obligation
               guaranteed hereby or hereby incurred; or 

                    (g)  any other circumstance whatsoever that might
               otherwise constitute a legal or equitable discharge or
               defense of a guarantor, it being the intent of this Section
               5.03 that the obligations of the Guarantor hereunder shall
               be absolute and unconditional under any and all
               circumstances.

          There shall be no obligation of the Holders to give notice to, or
          obtain consent of, the Guarantor with respect to the happening of
          any of the foregoing.

        
                    SECTION 5.04   RIGHTS OF HOLDERS.  The Guarantor
          expressly acknowledges that:  (a) this Guarantee Agreement will
          be deposited with the Guarantee Trustee to be held for the
          benefit of the Holders; (b) the Guarantee Trustee has the right
          to enforce this Guarantee Agreement on behalf of the Holders; (c)
          the Holders of a majority in liquidation amount of the
          Outstanding Preferred Securities have the right to direct the
          time, method and place of conducting any proceeding for any
          remedy available to the Guarantee Trustee in respect of this
          Guarantee Agreement or exercising any trust or power conferred
          upon the Guarantee Trustee under this Guarantee Agreement; and
          (d) any Holder may institute a legal proceeding directly against
          the Guarantor to enforce its rights under this Guarantee
          Agreement without first instituting a legal proceeding against
          the Issuer or any other person or entity.
         

                    SECTION 5.05   GUARANTEE OF PAYMENT.  This Guarantee
          Agreement creates a guarantee of payment and not of collection. 
          This Guarantee Agreement will not be discharged except by payment
          of the Guarantee Payments in full (without duplication).

                    SECTION 5.06   SUBROGATION.  The Guarantor shall be
          subrogated to all (if any) rights of the Holders against the
          Issuer in respect of any amounts paid to the Holders by the
          Guarantor under this Guarantee Agreement; provided, however, that
          the Guarantor shall not (except to the extent required by
          mandatory provisions of law) be entitled to enforce or exercise
          any rights which it may acquire by way of subrogation or any
          indemnity, reimbursement or other agreement, in all cases as a
          result of payment under this Guarantee Agreement, if, at the time
          of any such payment, any amounts of Guarantee Payments are due
          and unpaid under this Guarantee Agreement.  If any amount shall
          be paid to the Guarantor in violation of the preceding sentence,
          the Guarantor agrees to hold such amount in trust for the Holders
          and to pay over such amount to the Holders.

                    SECTION 5.07   INDEPENDENT OBLIGATIONS.  The Guarantor
          acknowledges that its obligations hereunder are independent of
          the obligations of the Issuer with respect to the Preferred
          Securities and that the Guarantor shall be liable as principal
          and as debtor hereunder to make Guarantee Payments pursuant to
          the terms of this Guarantee Agreement notwithstanding the
          occurrence of any event referred to in subsections (a) through
          (g), inclusive, of Section 5.03.


                                      ARTICLE VI

                                    SUBORDINATION

        
                    SECTION 6.01   SUBORDINATION.  This Guarantee Agreement
          will constitute an unsecured obligation of the Guarantor and will
          rank subordinate and junior in right of payment to all Senior
          Indebtedness of the Guarantor to the same extent as the
          Debentures.
         


                                     ARTICLE VII

                                     TERMINATION

        
                    SECTION 7.01   TERMINATION.  This Guarantee Agreement
          shall terminate and be of no further force and effect upon:  (a)
          full payment of the Redemption Price of all Preferred Securities,
          (b) the distribution of Debentures to Holders in exchange for all
          of the Preferred Securities or (c) full payment of the amounts
          payable in accordance with the Trust Agreement upon liquidation
          of the Issuer.  Notwithstanding the foregoing, this Guarantee
          Agreement will continue to be effective or will be reinstated, as
          the case may be, if at any time any Holder must restore payment
          of any sums paid with respect to the Preferred Securities or
          under this Guarantee Agreement.
         


                                     ARTICLE VIII

                                    MISCELLANEOUS

                    SECTION 8.01   SUCCESSORS AND ASSIGNS.  All guarantees
          and agreements contained in this Guarantee Agreement shall bind
          the successors, assigns, receivers, trustees and representatives
          of the Guarantor and shall inure to the benefit of the Holders of
          the Preferred Securities then outstanding.  Except in connection
          with a consolidation, merger or sale involving the Guarantor that
          is permitted under Article Eleven of the Indenture, the Guarantor
          shall not assign its obligations hereunder.

                    SECTION 8.02   AMENDMENTS.  This Guarantee Agreement
          may be amended only by an instrument in writing entered into by
          the Guarantor and the Guarantee Trustee.  Except with respect to
          any changes which do not materially adversely affect the rights
          of Holders (in which case no consent of Holders will be
          required), this Guarantee Agreement may only be amended with the
          prior approval of the Holders of not less than 66 2/3% of the 
          aggregate liquidation amount of all of the outstanding Preferred
          Securities.  The provisions of Article VI of the Trust Agreement
          concerning meetings of Holders shall apply to the giving of such
          approval.  Nothing herein contained shall be deemed to require
          that the Guarantee Trustee enter into any amendment of this
          Guarantee Agreement.

                    SECTION 8.03   NOTICES.  Any notice, request or other
          communication required or permitted to be given hereunder shall
          be in writing, duly signed by the party giving such notice, and
          delivered, telecopied or mailed by first class mail as follows:

                    (a)  if given to the Guarantor, to the address set
               forth below or such other address as the Guarantor may give
               notice of to the Holders of the Preferred Securities:

                              Delmarva Power & Light Company
                              800 King Street
                              Wilmington, DE  19899
                              Facsimile No:  (302) 429-3367
                              Attention:  Treasurer

                    (b)  if given to the Issuer, in care of the
               Administrative Trustees, at the Issuer's (and the
               Administrative Trustees') address set forth below or such
               other address as the Administrative Trustees on behalf of
               the Issuer may give notice of to the Holders:

                              Delmarva Power Financing I
                              c/o Treasury Department, Delmarva Power &
                              Light Company
                              800 King Street
                              Wilmington, DE  19899
                              Facsimile No:  (302) 429-3367
                              Attention:  Administrative Trustees

                    (c)  if given to the Guarantee Trustee, to the address
               set forth below or such other address as the Guarantee
               Trustee may give notice of to the Holders of the Preferred
               Securities:

                              Wilmington Trust Company 
                              1100 North Market Street
                              Wilmington, DE  19890

        
                              Facsimile No: (302) 651-8882
                              Attention: Corporate Trust Administration
         

                    (d)  if given to any Holder, at the address set forth
               on the books and records of the Issuer.

                    All notices hereunder shall be deemed to have been
          given when received in person, telecopied with receipt confirmed,
          or mailed by first class mail, postage prepaid except that if a
          notice or other document is refused delivery or cannot be
          delivered because of a changed address of which no notice was
          given, such notice or other document shall be deemed to have been
          delivered on the date of such refusal or inability to deliver.

                    SECTION 8.04   BENEFIT.  This Guarantee Agreement is
          solely for the benefit of the Holders and, subject to Section
          3.01(a), is not separately transferable from the Preferred
          Securities.

                    SECTION 8.05   INTERPRETATION.  In this Guarantee
          Agreement, unless the context otherwise requires: 

        
         

        
                    (a)  a term defined anywhere in this Guarantee
               Agreement has the same meaning throughout;
         

        
                    (b)  all references to "the Guarantee Agreement" or
               "this Guarantee Agreement" are to this Guarantee Agreement
               as modified, supplemented or amended from time to time;
         

        
                    (c)  all references in this Guarantee Agreement to
               Articles and Sections are to Articles and Sections of this
               Guarantee Agreement unless otherwise specified;
         

        
                    (d)  a term defined in the Trust Indenture Act has the
               same meaning when used in this Guarantee Agreement unless
               otherwise defined in this Guarantee Agreement or unless the
               context otherwise requires;
         

        
                    (e)  a reference to the singular includes the plural
               and vice versa; and
         

        
                    (f)  the masculine, feminine or neuter genders used
               herein shall include the masculine, feminine and neuter
               genders.
         

                    SECTION 8.06   GOVERNING LAW.  This Guarantee Agreement
          shall be governed by and construed and interpreted in accordance
          with the laws of the State of New York (without regard to
          conflict of laws principles).

                    This instrument may be executed in any number of
          counterparts, each of which so executed shall be deemed to be an
          original, but all such counterparts shall together constitute but
          one and the same instrument.

     

                    THIS GUARANTEE AGREEMENT is executed as of the day and
          year first above written.

                                   Delmarva Power & Light Company

                                   By:
                                        ----------------------------------
                                        Name: 
                                        Title: 


                                   Wilmington Trust Company,
                                    as Guarantee Trustee

                                   By: 
                                        ----------------------------------
                                        Name: 
                                        Title: