Company: DTK
Filing Date: 2025-04-04
Form Type: S-3ASR
Source: 0001193125-25-073369
Chunk: 45

Company: DTE ENERGY CO
Filing Date: 2025-04-04
Form: S-3ASR
Chunk 45
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, they do not describe every aspect of the indenture or the mortgage. The summaries below are subject to, and are
qualified in their entirety by reference to, all provisions of the indenture and the mortgage, including the definitions therein of certain terms. We have filed copies of the indenture and the mortgage as exhibits to the registration statement of
which this prospectus is a part. We encourage you to read the mortgage and indenture for provisions that may be important to you. Wherever particular articles, sections or defined terms of the indenture or mortgage are referred to those articles,
sections or defined terms are incorporated herein by reference, and the statement in connection with which such reference is made is qualified in its entirety by such reference. The indenture and the mortgage contain, and the debt securities, when
issued, will contain, additional important terms and provisions. We will describe the particular terms of the debt securities offered by any prospectus supplement and the extent, if any, to which such general provisions may apply to the debt
securities so offered in the prospectus supplement relating to those debt securities.

Unless we otherwise specify in this prospectus or
in the applicable prospectus supplement, we will issue debt securities in the form of global securities, deposited with and registered in the name of The Depository

9

Trust Company, as depositary, which we refer to as “DTC,” or its nominee. Interests in the debt securities will be shown on, and transfers thereof will be effected only through, records maintained by DTC and its participants. See “Book-Entry Securities.” Provisions Applicable to All Debt Securities General The prospectus supplement that accompanies this prospectus relating to the debt securities being offered will include specific terms relating to the offered debt securities. These terms will include some or all of the following:

| • |     | the title or designation of the debt securities; |

| • |     | the aggregate principal amount of the debt securities; |

| • |     | whether the debt securities are to represent secured indebtedness, including mortgage bonds, or senior unsecured                          
 indebtedness or subordinated indebtedness and, if subordinated debt securities, the specific subordination provisions applicable thereto; |

| • |     | in the case of subordinated debt securities, the relative degree, if any, to which such subordinated debt                                                                                                                                                
 securities of the series will be senior to or be subordinated to other series of subordinated debt securities or other indebtedness of DTE Electric in right of payment, whether