Company: DTK
Filing Date: 2025-04-04
Form Type: S-3ASR
Source: 0001193125-25-073369
Chunk: 43

Company: DTE ENERGY CO
Filing Date: 2025-04-04
Form: S-3ASR
Chunk 43
---
 sold, or distributed through the retail access program, to three major classes of customers: residential,
commercial, and industrial, throughout southeastern Michigan.

6

USE OF PROCEEDS Except as we may otherwise state in an accompanying prospectus supplement, we expect to use the net proceeds from the sale of our debt securities for general corporate purposes, which may include, among other things:

| • |     | to repay outstanding indebtedness; |

| • |     | to replace funds previously utilized for the redemption or repayment of securities; |

| • |     | additions to working capital; and |

| • |     | capital expenditures. |

The precise amount and timing of the application of such proceeds will depend upon our funding requirements, market conditions and the availability and cost of other funds. Pending the application of proceeds, we may invest the funds temporarily in short-term investment grade securities. 7

THE SECURITIES THAT WE MAY OFFER The descriptions of the securities contained in this prospectus, together with the applicable prospectus supplements, summarize certain terms and provisions of the various types of securities that DTE Electric may offer. The particular terms of the securities offered by any prospectus supplement will be described in that prospectus supplement. If indicated in the applicable prospectus supplement, the terms of the securities may differ from the terms summarized below. The prospectus supplement will also contain information, where applicable, about material U.S. federal income tax considerations relating to the securities, and any securities exchange on which the securities may be listed. We may sell from time to time, in one or more offerings:

| • |     | senior secured debt securities, including general and refunding mortgage bonds and other senior debt securities 
 secured by mortgage bonds; and/or                                                                               |

| • |     | unsecured debt securities, which may be senior or subordinated. |

In this prospectus, DTE Electric refers to the senior secured debt securities and unsecured debt securities together as “securities” or the “debt securities.” 8

DESCRIPTION OF DEBT SECURITIES

General

The following description,
together with any applicable prospectus supplement, summarizes certain material terms and provisions of the debt securities we may offer under this prospectus and the related indenture.

The general and refunding mortgage bonds, which we refer to as the “mortgage bonds,” are to be issued under and secured by the
mortgage and deed of trust, dated as of October 1, 1924, between DTE Electric and The Bank of New York Mellon Trust Company