Keystone Coal Power Plant | Pennsylvania, USA | 1,883 MW Facility

Keystone is a coal-fired power plant located in Pennsylvania, United States, with a capacity of 1,883 MW, making it a large-scale facility in the US power generation sector. The plant is owned and operated by KeyCon Operating LLC and is currently operational. The plant operates under the regulatory framework of the US Clean Air Act, including the Acid Rain Program and the Cross-State Air Pollution Rule (CSAPR), which set emission limits for sulfur dioxide (SO2), nitrogen oxides (NOx), and other pollutants. Keystone plays a significant role in meeting regional electricity demand in Pennsylvania. Its coal fuel source contributes to CO2 emissions, and its location in a populated area necessitates compliance with local air quality standards. The plant's capacity places it among the larger coal facilities in the state.

Keystone's coal combustion produces CO2, SO2, and NOx emissions, impacting local air quality and contributing to regional haze. Its location in Pennsylvania, a state with varied terrain and population centers, requires adherence to EPA NAAQS and state implementation plans. The plant's age and technology influence its emission profile, with older subcritical units generally having higher emission rates per MWh than modern supercritical or CCGT plants.