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                                                                  EXHIBIT 4-207
                                                                  CONFORMED COPY

                           THE DETROIT EDISON COMPANY,

                                               Issuer

                                       TO


                             BANKERS TRUST COMPANY,

                                          As Prior Trustee

                                       AND

                  BANK ONE TRUST COMPANY, NATIONAL ASSOCIATION,

                                          As Successor Trustee

                                    --------

                          EIGHTH SUPPLEMENTAL INDENTURE
                           DATED AS OF April 15, 2000

                                    --------

                  SUPPLEMENTING THE COLLATERAL TRUST INDENTURE
                            DATED AS OF JUNE 30,1993

                                  PROVIDING FOR

                RESIGNATION OF THE PRIOR TRUSTEE, APPOINTMENT AND
                       ACCEPTANCE OF A SUCCESSOR TRUSTEE
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         EIGHTH SUPPLEMENTAL INDENTURE, dated as of the 15th day of April, 2000
among THE DETROIT EDISON COMPANY, a corporation organized and existing under the
laws of the State of Michigan (the "Company" or "Issuer"), and BANKERS TRUST
COMPANY, a New York banking corporation, having its principal office in The City
of New York, New York, as prior trustee (the "Prior Trustee" or "BTCo.") and
Bank One Trust Company, National Association, a national banking association, as
successor trustee (the "Successor Trustee" or "Successor");


          WHEREAS, the Company has heretofore executed and delivered to the
Prior Trustee a Collateral Trust Indenture dated as of June 30, 1993 (the
"Original Indenture"), as supplemented by a First Supplemental Indenture dated
as of June 30, 1993, a Second Supplemental Indenture dated as of September 15,
1993, as amended, a Third Supplemental Indenture dated as of August 15, 1994, as
amended, a Fourth Supplemental Indenture dated as of August 15, 1995, a Fifth
Supplemental Trust Indenture dated as of February 1, 1996, a Sixth Supplemental
Indenture dated as of May 1, 1998 and a Seventh Supplemental Indenture dated as
of October 15, 1998 (the Original Indenture and all indentures supplemental
thereto together being hereinafter sometimes referred to as the "Indenture")
providing for the issuance by the Company from time to time of an unlimited
principal amount of Securities (as such term is defined in the Original
Indenture, the "Securities"), of which Three Hundred eighty-five million one
hundred twenty-two thousand three hundred dollars ($385,122,300) are presently
outstanding as specified in Schedule I; and

         WHEREAS, the Company is a party to an Instrument of Resignation,
Appointment and Acceptance dated April 14, 2000 as set forth in relevant part
below (the "Instrument"); and

         WHEREAS, the Instrument was among the Company, the Prior Trustee and
the Successor Trustee; and

         WHEREAS, Section 709 of the Original Indenture provides that BTCo. may
resign at any time and be discharged of the trust created by the Original
Indenture by giving written notice thereof to the Issuer and by mailing notice
of resignation to the holders of Securities; and

         WHEREAS, BTCo., pursuant to the provisions of Section 709 of the
Original Indenture, gave such written notice to the Issuer on April 14, 2000,
and has mailed such notice of its resignation as Trustee under the Original
Indenture to the Securityholders in accordance with the provisions of the
Original Indenture, and by doing so BTCo. created a vacancy in the office of the
Trustee; and


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                                       2

         WHEREAS, Section 709 of the Original Indenture further provides that
the Issuer shall promptly appoint a successor Trustee to fill a vacancy in the
Office of Trustee under the Original Indenture; and

         WHEREAS, the Issuer desired to appoint Bank One Trust Company, National
Association, as successor Trustee under the Original Indenture; and

         WHEREAS, Successor was willing to accept such appointment as successor
Trustee on the terms and conditions set forth herein and under the Original
Indenture; and

         WHEREAS, Successor is qualified to act as successor Trustee under the
Original Indenture.

         NOW, THEREFORE, pursuant to the provisions of the Original Indenture
and in consideration of the covenants in the Instrument, it was agreed among the
Issuer, BTCo. and Successor as follows:

         1.   The Issuer accepted the resignation of BTCo. as Trustee and,
              pursuant to the authority vested in it by Section 709 of the
              Original Indenture and by resolution of its Board of Directors
              dated December 1, 1999, the Issuer appointed Successor, as
              successor Trustee under the Indenture, with all the estates,
              properties, rights, powers, trusts, duties and obligations
              heretofore vested in BTCo. as Trustee under the Indenture and
              designated the Corporate Trust Office of Successor presently
              located at 14 Wall Street, 8th Floor, New York, New York 10005, as
              the office or agency of the Issuer in New York, New York where the
              Securities may be presented for payment, registration, transfer
              and exchange and as the office where notices and demands to or
              upon the Issuer in respect of the Indenture or Securities may be
              served. BTCo.'s resignation as Trustee and Successor's appointment
              and acceptance as successor Trustee, was effective as of April 15,
              2000.

         2.   The Issuer represented and warranted that:

              (a)  it is validly organized and existing under the laws of the
                   state of its incorporation;

              (b)  the Instrument has been duly authorized, executed and
                   delivered on behalf of the Issuer and constitutes its legal,
                   valid and binding obligation;

              (c)  the Securities were validly and lawfully issued;


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              (d)  it has performed or fulfilled each covenant, agreement and
                   condition on its part to be performed or fulfilled under the
                   Indenture;

              (e)  it has no knowledge of the existence of any default, or any
                   Event of Default (as defined in the Indenture), or any event
                   which upon notice or passage of time of both would become and
                   Event of Default, under the Indenture;

              (f)  it has not appointed any registrar or paying agents under the
                   Indenture other than BTCo.;

              (g)  it would continue to perform the obligations undertaken by it
                   under the Indenture; and

              (h)  it has mailed or will cause to be mailed to each Security
                   holder a Notice of Appointment of Successor Trustee.

         3.   BTCo. represented and warranted to Successor that it has made, or
              promptly will make, available to Successor documents in its
              possession relating to the trust created by the Indenture
              reasonably requested by Successor.

         4.   Successor represented that it is qualified to act as Trustee under
              the provisions of the Indenture and that the Instrument has been
              duly authorized, executed an delivered on behalf of Successor and
              constitutes its legal, valid and binding obligation.

         5.   Successor accepted its appointment as successor Trustee under the
              Original Indenture and accepted the trust created thereby, and
              assumed all rights, powers, duties and obligations of the Trustee
              under the Original Indenture. Successor will perform said trust
              and will exercise said rights, powers, duties, and obligations
              upon the terms and conditions set forth in the Indenture.

         6.   Successor accepted the designation of its Corporate Trust Office
              as the office or agency of the Issuer in New York, New York where
              the Securities may be presented for payment, registration,
              transfer and exchange and as the office where notices and demands
              to or upon the Issuer in respect to the Indenture or the
              Securities may be served.

         7.   Pursuant to the written request of Successor and the Issuer hereby
              made, BTCo., upon payment of its outstanding charges, receipt of
              which is hereby acknowledged, confirms, assigns, transfers and
              sets over to Successor, as successor Trustee under the Indenture,



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              upon the trust expressed in the Indenture, any and all moneys and
              all the rights, powers, trusts, duties and obligations which BTCo.
              now holds under and by virtue of the Indenture.


         8.   The Issuer and BTCo. hereby agreed, that upon the request of
              Successor, to execute, acknowledge and deliver such further
              instruments of conveyance and assurance and to do such other
              things as may be required for more fully and certainly vesting and
              confirming in Successor all of the properties, rights, powers,
              duties and obligations of Successor as Trustee under the
              Indenture.

         9.   The Instrument did not constitute a waiver or assignment by
              Bankers Trust Company of any compensation, reimbursement, expenses
              or indemnity to which it is or may be entitled pursuant to the
              Indenture. The Issuer acknowledged such obligations pursuant to
              the terms of the Indenture.

         10.  Terms not otherwise defined in the Instrument shall have the
              definitions given thereto in the Indenture.

         11.  The Instrument could be simultaneously executed in any number of
              counterparts. Each such counterpart so executed would be deemed to
              be and original, but all together would constitute but one and the
              same instrument.

        The Prior Trustee and the Successor Trustee make no undertaking or
representations in respect of, and shall not be responsible in any manner
whatsoever for and in respect of, the validity or sufficiency of this Eighth
Supplemental Indenture for its intended purpose or the proper authorization or
the due execution hereof by the Company or for or in respect of the recitals and
statements contained herein, all of which recitals and statements are made
solely by the Company.

        Except as expressly amended hereby, the Indenture shall continue in full
force and effect in accordance with the provisions thereof and the Original
Indenture is in all respects hereby ratified and confirmed. This Eighth
Supplemental Indenture and all its provisions shall be deemed a part of the
Original Indenture in the manner and to the extent herein and therein provided.

        This Eighth Supplemental Indenture shall be governed by, and construed
in accordance with, the laws of the State of New York without regard to
conflict-of-law principles of such state that would require the application of
the laws of a jurisdiction other than such state.


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                                       5


IN WITNESS WHEREOF, the parties hereto have caused this Eighth Supplemental
Indenture to be duly executed as of the day and year first above written.


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                                       6


                           THE DETROIT EDISON COMPANY


                           By: /s/ N.A. Khouri
                               --------------------------------
                               Name:    N.A. Khouri
                               Title:   Assistant Treasurer

ATTEST:


By:      /s/ Jack L. Somers
   --------------------------------------
   Jack L. Somers
   Assistant Corporate Secretary


[Corporate Seal]

STATE OF MICHIGAN)
                 )           SS:
COUNTY OF WAYNE  )

         On the 14th day of April 2000, before me personally came N.A. Khouri,
to me known, who, being by me duly sworn, did depose and say that he is
Assistant Treasurer of THE DETROIT EDISON COMPANY, one of the corporations
described in and which executed the foregoing instrument; that he knows the seal
of said corporation; that the seal affixed to said instrument is such corporate
seal; that it was so affixed by authority of the Board of Directors of said
corporation, and he signed his name thereto by like authority.


                           /s/ Geraldine N. Rockymore
                           ------------------------------
                           Geraldine N. Rockymore, Notary Public
                           Oakland County, Michigan
                           My Commission Expires: December 23, 2002
                           (Acting in Wayne)



[Notarial Seal]



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                                       7



                             BANK ONE TRUST COMPANY,
                             NATIONAL ASSOCIATION
                             as Successor Trustee


                             By: /s/ Steven M. Wagner
                             ------------------------------
                             Name:  Steven M. Wagner
                             Title: First Vice President

ATTEST:


By: /s/ John R. Prendiville
   --------------------------------

Assistant Corporate Secretary


[Corporate Seal]



STATE OF ILLINOIS )
                  )         SS:
COUNTY OF COOK    )

         On the 14th day of April 2000, before me personally came Steven M.
Wagner, to me known, who, being by me duly sworn, did depose and say that he is
a First Vice President of BANK ONE TRUST COMPANY, NATIONAL ASSOCIATION, one of
the corporations described in and which executed the foregoing instrument; that
he knows the seal of said corporation; that the seal affixed to said instrument
is such corporate seal; that it was so affixed by authority of the Board of
Directors of said corporation, and he signed his name thereto by like authority.


                            /s/ Lisa Nix
                         ----------------------------------
                            Lisa Nix, Notary Public
                            Cook County, Illinois
                            My Commission Expires: May 20, 2002



[Notarial Seal]


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                                      8


                             BANKERS TRUST COMPANY,
                             as Prior Trustee


                             By: /s/ Jackie Bartnick
                                ------------------------------------------
                               Name:    Jackie Bartnick
                               Title:   Vice President




STATE OF NEW YORK   )
                    )         SS:
COUNTY OF NEW YORK  )

         On the 14th day of April 2000, before me personally came Jackie
Bartnick, to me known, who, being by me duly sworn, did depose and say that she
is a Vice President of BANKERS TRUST COMPANY, one of the corporations described
in and which executed the foregoing instrument; and she signed her name thereto
by authority of the By-laws of said corporation.


                              /s/ Matthew Sherman
                           --------------------------------
                              Matthew Sherman, Notary Public
                              New York County, New York
                              My Commission Expires: 11/3/2001

[Notarial Seal]


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                                   Schedule I


7.54% Quarterly Income Debt Securities ("QUIDS") Junior Subordinated Deferrable
Interest Debentures in the principal amount of One hundred million one hundred
twenty-two thousand three hundred dollars ($100,122,300), all of which are
outstanding at the date hereof;

7.625% Quarterly Income Debt Securities ("QUIDS") Junior Subordinated Deferrable
Interest Debentures in the principal amount of One hundred eighty-five million
dollars ($185,000,000), all of which are outstanding at the date hereof; and

7.375% Quarterly Income Debt Securities ("QUIDS") Junior Subordinated Deferrable
Interest Debentures in the principal amount of One hundred million dollars
($100,000,000), all of which are outstanding at the date hereof.