Company: DTK
Filing Date: 2025-05-01
Form Type: 10-Q
Source: 0000936340-25-000097
Chunk: 163

Company: DTE ENERGY CO
Filing Date: 2025-05-01
Form: 10-Q
Item: Part I, Item 8
Chunk 163
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 ambient monitoring data.  Phase 2 addresses non-attainment areas with large sources of SO2 and modeled concentrations exceeding the National Ambient Air Quality Standards for SO2.  Phase 3 addresses smaller sources of SO2 with modeled or monitored exceedances of the new SO2 standard.Michigan's Phase 1 non-attainment area included DTE Energy facilities.  However, the EPA published a Federal Implementation Plan (FIP) for the area in June 2022 that did not impact any DTE Energy facilities.  It is also not expected that Phase 3 will have any impact on DTE Energy.Michigan's Phase 2 non-attainment area includes DTE Electric facilities in St. Clair County.  The EPA approved a clean data determination request submitted by EGLE.  This determination suspends certain planning requirements and sanctions for the non-attainment area for as long as the area continues to attain the 2010 SO2 air quality standards, but this does not automatically redesignate the area to attainment.  Until the area is officially redesignated as attainment, DTE Energy is unable to determine the impacts.REF GuaranteesDTE Energy provided certain guarantees and indemnities in conjunction with the sales of interests in or lease of its previously operated REF facilities.  The guarantees cover potential commercial, environmental, and tax-related obligations that will survive until 90 days after expiration of all applicable statutes of limitations.  DTE Energy estimates that its maximum potential liability under these guarantees at March 31, 2025 was $201 million.  Payments under these guarantees are considered remote.Other GuaranteesIn certain limited circumstances, the Registrants enter into contractual guarantees.  The Registrants may guarantee another entity’s obligation in the event it fails to perform and may provide guarantees in certain indemnification agreements.  The Registrants may also provide indirect guarantees for the indebtedness of others.  DTE Energy’s guarantees are not individually material with maximum potential payments totaling $69 million at March 31, 2025.  Payments under these guarantees are considered remote.The Registrants are periodically required to obtain performance surety bonds in support of obligations to various governmental entities and other companies in connection with its operations.  As of March 31, 2025, DTE Energy had $387 million of performance bonds outstanding, including $213 million for DTE Electric.  Performance bonds are not individually material, except for $130 million of bonds supporting Energy Trading operations.  These bonds are meant to provide counterparties with additional assurance that