1
                                                                   EXHIBIT 15-12




DTE Energy Company and
The Detroit Edison Company
Detroit, Michigan

We have made a review, in accordance with standards established by the American
Institute of Certified Public Accountants, of the unaudited interim financial
information of DTE Energy Company and subsidiaries and of The Detroit Edison
Company and subsidiaries for the periods ended September 30, 1999 and 1998, as
indicated in our report dated November 8, 1999. Because we did not perform an
audit, we expressed no opinion on that information.

We are aware that our report referred to above, which is included in your
Quarterly Report on Form 10-Q for the quarter ended September 30, 1999, is
incorporated by reference in the following Registration Statements:



         FORM                       REGISTRATION NUMBER
                                 
         DTE Energy Company
         Form S-3                   33-57545
         Form S-4                   333-89175
         Form S-8                   333-00023

         The Detroit Edison Company
         Form S-3                   33-53207
         Form S-3                   33-64296
         Form S-3                   333-65765


We also are aware that the aforementioned report, pursuant to Rule 436(c) under
the Securities Act of 1933, is not considered a part of the Registration
Statement prepared or certified by an accountant or a report prepared or
certified by an accountant within the meaning of Sections 7 and 11 of that Act.




DELOITTE & TOUCHE LLP

Detroit, Michigan
November 8, 1999