Company: DTK
Filing Date: 2025-02-13
Form Type: 10-K
Source: 0000936340-25-000065
Chunk: 44

Company: DTE ENERGY CO
Filing Date: 2025-02-13
Form: 10-K
Item: Item 1
Chunk 44
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In addition to the owned renewable facilities described above, DTE Electric has long-term contracts for 609 MW of renewable power generated from wind, solar, and biomass facilities.  Of that amount, currently 52 MW relates to power purchase agreements with DTE Sustainable Generation.

See "Capital Investments" in Management's Discussion and Analysis in Item 7 of this Report for information regarding plant retirements and future capital expenditures.

DTE Electric owns and operates 702 distribution substations with a capacity of approximately 37,710,000 kilovolt-amperes (kVA) and approximately 455,300 line transformers with a capacity of approximately 33,570,000 kVA.

8

Circuit miles of electric distribution lines owned and in service as of December 31, 2024 are shown in the following table:

Circuit MilesOperating Voltage-Kilovolts (kV)OverheadUnderground4.8 kV to 13.2 kV28,566 13,553 24 kV175 702 40 kV2,343 445 120 kV61 8 31,145 14,708 

There are numerous interconnections that allow the interchange of electricity between DTE Electric and electricity providers external to the DTE Electric service area.  These interconnections are generally owned and operated by ITC Transmission, an unrelated company, and connect to neighboring energy companies.

Regulation

DTE Electric is subject to the regulatory jurisdiction of various agencies, including, but not limited to, the MPSC, the FERC, and the NRC.  The MPSC issues orders pertaining to rates, recovery of certain costs, including the costs of generating facilities and regulatory assets, conditions of service, accounting, and operating-related matters.  DTE Electric's MPSC-approved rates charged to customers have historically been designed to allow for the recovery of costs, plus an authorized rate of return on investments.  The FERC regulates DTE Electric with respect to financing authorization, wholesale electric market activities, certain affiliate transactions, the acquisition and disposition of certain generation and other facilities, and, in conjunction with the NERC, compliance with mandatory reliability standards.  The NRC has regulatory jurisdiction over all phases of the operation, construction, licensing, and decommissioning of DTE Electric's nuclear plant operations.  DTE Electric is subject to the requirements of other regulatory agencies with respect to safety, the environment, and health.

See Notes 7, 8, 11, 17, and