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                                                                EXHIBIT 15.6


                       [DELOITTE & TOUCHE LLP LETTERHEAD]




DTE Energy Company and 
The Detroit Edison Company 
Detroit, Michigan

We have made reviews, in accordance with standards established by the American
Institute of Certified Public Accountants, of the unaudited interim financial
information of DTE Energy Company and subsidiary companies and of The Detroit
Edison Company and subsidiary companies for the three-month and nine-month
periods ended September 30, 1997 and 1996, as indicated in our report dated
October 27, 1997. 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, 1997, is
incorporated by reference in the following Registration Statements:


                                                REGISTRATION 
                FORM                            NUMBER

                DTE Energy Company
                Form S-3                        33-57545
                Form S-8                        333-00023

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

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 which is 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

October 27, 1997