Colstrip Coal Power Plant: 2,363.4 MW Facility in Montana, USA

Colstrip is a coal-fired power plant located in Montana, United States, with a capacity of 2,363.4 MW. Operated by Talen Montana LLC, it is a major baseload generation facility in the region. The plant's size places it among the larger coal power plants in the country, reflecting its significance in the local energy mix. The plant operates under the regulatory framework of the U.S. Environmental Protection Agency (EPA), including the Clean Air Act (CAA) and its associated programs such as the Acid Rain Program and the Cross-State Air Pollution Rule (CSAPR). These regulations govern emissions of sulfur dioxide (SO2), nitrogen oxides (NOx), and other pollutants. As a coal-fired facility, Colstrip is subject to stringent emission limits and monitoring requirements. Colstrip plays a critical role in providing reliable electricity to the surrounding region and the broader Western Interconnection. Its large capacity supports grid stability and meets the energy demands of residential, commercial, and industrial customers. The plant's operational status and compliance with environmental regulations are key factors in its continued contribution to the power sector.

Colstrip's coal-fired generation results in significant CO2, SOx, and NOx emissions, contributing to regional air quality concerns and greenhouse gas levels. The plant's location in Montana, a state with relatively low population density, reduces direct exposure to populated areas. However, its large capacity and coal fuel source place it under close regulatory scrutiny for environmental impact, including potential effects on local ecosystems and water resources.