Company: POR
Filing Date: 2025-10-31
Form Type: 10-Q
Source: 0000784977-25-000172
Chunk: 200

Company: PORTLAND GENERAL ELECTRIC CO /OR/
Filing Date: 2025-10-31
Form: 10-Q
Item: Part I, Item 2
Chunk 200
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 price adjustments that the electric or natural gas company expects within the next twelve months. Such report, the first of which would be due at the end of 2026 at the earliest, must identify all price 

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adjustment requests that an electric or natural gas company has filed or reasonably knows or anticipates to file. Any increase in residential prices may not take effect from November 1 to March 31.

EPA Regulations for Electric Generating Facilities—In April 2024, the United States Environmental Protection Agency (EPA) released final regulations pertaining to electric generation facilities. The regulations included:

•GHG regulations for new natural gas-based turbines and existing coal-based units, pursuant to section 111 of the Clean Air Act (CAA); 

•Supplemental Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category (the ELG Rule), which applied to wastewater discharges from coal-based generating units and established pollution control requirements, building upon the 2015 and 2020 ELG Rules; and

•Updated Mercury and Air Toxics Standards (MATS), pursuant to section 112 of the CAA, which set emissions limits for filterable particulate matter for coal-based generating units.

On April 8, 2025, the President issued a proclamation, Regulatory Relief for Certain Stationary Sources to Promote American Energy, granting a two-year compliance exemption pursuant to the CAA Section 112(i)(4) for the EPA’s MATS rule. The EPA subsequently notified companies whether their sources had been granted the exemption. Colstrip was granted an exemption until July 8, 2029. Environmental groups have filed court challenges to the MATS exemptions.

On June 11, 2025, to advance the goals of the President’s Unleashing American Energy executive order, the EPA proposed to repeal the 2024 GHG emissions standards for fossil fuel-fired power plants promulgated under Section 111 of CAA. The EPA also proposed to repeal specific amendments to the updated MATS, that were promulgated in 2024, including the revised filterable particulate matter emissions standard. Additionally, on June 30, 2025, the EPA proposed to update the 2024 ELG Rule to extend compliance deadlines and explore flexibilities to promote reliable and affordable power generation. On July 29, 2025, the EPA proposed to rescind the 2009 endangerment finding, which, if approved, would remove the EPA’s authority to regulate GHGs.

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