Allen Gas Power Plant: 1,791.7 MW Facility Operated by TVA in the United States

Allen is a gas-fired power plant located in the United States, operated by the Tennessee Valley Authority (TVA). With a capacity of 1,791.7 MW, it is a large-scale facility within the US power generation sector, contributing significantly to the region's electricity supply. The plant operates under the regulatory framework of the US 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). As a gas-fired plant, it benefits from lower emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) compared to coal-fired units, aligning with modern environmental standards. Allen serves as a critical asset for TVA, providing reliable baseload or peaking power depending on grid demands. Its location in the US supports the country's transition toward cleaner energy sources, while its substantial capacity underscores its importance in maintaining grid stability and meeting regional electricity needs.

As a gas-fired power plant, Allen produces lower CO2 emissions per MWh compared to coal, but still contributes to greenhouse gas emissions. Its proximity to populated areas may raise local air quality considerations under the EPA's National Ambient Air Quality Standards (NAAQS). The plant's modern technology likely includes combined-cycle or simple-cycle gas turbines, which offer higher efficiency and reduced environmental footprint relative to older subcritical units.