Company: DTK
Filing Date: 2025-04-04
Form Type: S-3ASR
Source: 0001193125-25-073369
Chunk: 49

Company: DTE ENERGY CO
Filing Date: 2025-04-04
Form: S-3ASR
Chunk 49
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 provided in Section 3 of Article VI of the mortgage, the mortgage trustee may, when in possession during a default, apply any residue of collections to payment of principal of such mortgage bonds as are then due if all
of the mortgage bonds have not become due.

DTE Electric has good and marketable title to all properties standing of record in its name
(which include all of those properties on which its principal plants, generating stations and substations are erected and on which its general office and service buildings are constructed and all other important parcels of real estate and
improvements thereon, other than pollution control facilities standing in the names of certain municipalities that are being sold to DTE Electric pursuant to installment sales contracts and the undivided ownership interest of the Michigan Public
Power Agency in a portion of the Belle River Power Plant), subject to the lien of the mortgage and subject to minor exceptions, defects, irregularities and deficiencies that, in the opinion of DTE Electric, do not materially impair the use of such
property for its purposes, and has adequate rights to maintain and operate such of its distribution facilities as are located on public or other property.

12

Issuance of Additional Mortgage Bonds Additional mortgage bonds may be issued under the mortgage on the basis of:

| • |     | 60% of the cost or fair value to DTE Electric (whichever is less) of property additions (as detailed below) that 
 have not previously been taken into account for other purposes under the mortgage;                               |

| • |     | retired bonds in the same principal amount that have not previously been taken into account for other purposes 
 under the mortgage; and                                                                                        |

| • |     | cash deposited with the mortgage trustee in the same amount. (Article III) |

Property additions include property, real and personal, used in the business of generating, transmitting or distributing electricity or gas, or power or heat by means of steam or hot water, and, with certain exceptions, located in the State of Michigan. Property additions do not include property acquired or constructed to keep the mortgaged property in working order or merely to replace obsolete or worn out property, except for the excess over the original cost of the original property. (Article I, Section 4; Article III, Section 4) Bonds may not be issued on the basis of property additions or deposited cash unless earnings of DTE Electric (after all operating expenses including all taxes, but excluding depreciation and interest charges) available for interest and reserves, including depreciation, for any consecutive twelve-month