Company: DTK
Filing Date: 2025-10-30
Form Type: 10-Q
Source: 0000936340-25-000223
Chunk: 191

Company: DTE ENERGY CO
Filing Date: 2025-10-30
Form: 10-Q
Item: Part I, Item 8
Chunk 191
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1, DTE Electric submitted a Notice of Planned Participation (NOPP) to the state of Michigan that formally announced the intent to pursue compliance subcategories as ELG compliance options: the cessation of coal at the Belle River power plant no later than December 31, 2028 and the VIP for FGD wastewater at Monroe power plant by December 31, 2028.The EPA also finalized Supplemental ELG Rules on May 9, 2024.  This updated the regulations from the 2020 Reconsideration Rule for FGD wastewater, bottom ash transport water (BATW), combustion residual leachate (CRL), and legacy wastewater (LWW).  The supplemental rule established new technology-based effluent limitations guidelines and standards applicable to FGD wastewater, BATW, CRL, and LWW.  The applicability date for BATW is as soon as possible beginning July 8, 2024 and no later than December 31, 2029.  FGD wastewater retrofits must be completed as soon as possible, beginning July 8, 2024 and no later than December, 31 2029 or December 31, 2028 if a permittee is pursuing the VIP subcategory for FGD wastewater.  The Cessation of Coal compliance subcategory and VIP from the 2020 Reconsideration Rule were maintained in the 2024 Supplemental Rule and continue to be a fundamental component of DTE Electric's ELG compliance strategy.  The EPA recently announced that they will be reviewing and possibly revising the 2024 Supplemental ELG Rule.  At this time, DTE Electric cannot predict effective dates for any revisions or their financial impacts.DTE Electric's compliance strategy includes the conversion of the two generating units at the Belle River power plant to a natural gas peaking resource in 2025-2026, which was included in the NOPP filed in 2021.  DTE Electric also submitted a new NOPP to apply for the cessation of coal compliance subcategory for generating units 3 and 4 at the Monroe power plant.  DTE Electric plans to retire Monroe's generating units 1 and 2 in 2032.DTE Electric continues to evaluate compliance strategies, technologies and system designs to achieve compliance with the EPA rules at the Monroe power plant in accordance with the VIP subcategory for FGD and plans to meet new discharge requirements for BATW by December 31, 2025 for Monroe's generating units 1 and 2.