Company: TVC
Filing Date: 2025-07-29
Form Type: 10-Q
Source: 0001376986-25-000044
Chunk: 487

Company: Tennessee Valley Authority
Filing Date: 2025-07-29
Form: 10-Q
Item: Part II, Item 5
Chunk 487
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 reconsider 31 rules, including (1) regulations on power plants, (2) Mercury and Air Toxics Standards, (3) steam electric effluent limitation guidelines, (4) National Ambient Air Quality Standards for particulate matter, (5) regulations regarding regional haze, (6) the Good Neighbor Plan, and (7) CCR regulations.  TVA cannot predict the outcome of such reevaluations or their impact on TVA's financial results or operations.  See Part I, Item 1, Business — Environmental Matters in the Annual Report.

Clean Air Act Programs and Regulations

Regional Haze Program.  In February 2025, the TVA Board approved funding of $233 million to construct scrubbers at two additional units at Shawnee Fossil Plant by the end of 2028.  Inclusive of the costs for these two scrubbers, at June 30, 2025, TVA’s estimated potential expenditures on Clean Air Act control projects are $48 million, $98 million, and $216 million for the remainder of 2025, 2026, and 2027 - 2029, respectively.

Mercury and Air Toxics Standards for Electric Utility Units.  On April 8, 2025, the President issued a proclamation exempting certain coal-fired power plants for two years from compliance with the updated Mercury and Air Toxics Standards that EPA published in May 2024.  The President has exempted TVA's Cumberland, Gallatin, Kingston, and Shawnee fossil plants for the period beginning July 8, 2027 and concluding July 8, 2029.  These plants must continue to comply with the Mercury and Air Toxics Standards that were in effect prior to the May 2024 update.  These exemptions are currently subject to legal challenge.

Climate Change

Emissions.  Emissions of nitrogen oxides ("NOx") and sulfur dioxide ("SO2") began being regulated in 1995 and 1977, respectively.  Emissions of NOx and SO2 have been reduced by 97 percent and 99 percent, respectively, since their initial year of regulation.

Emissions and Intensity Rates (1)CY 2024CY 2023Nitrogen Oxides (NOx)(2)Total NOx Emissions (MT)14,74313,221Total NOx Emissions Intensity (MT/Net MWh)0.0001070.000098Sulfur Dioxide (SO