Coolidge Generation Station: 726 MW Gas Power Plant in Arizona, USA

Coolidge Generation Station is a gas-fired power plant located in Arizona, United States, with a capacity of 726 megawatts. It is owned and operated by Salt River Project, a major utility in the region. The plant plays a key role in meeting the electricity demands of the area. The facility operates under the regulatory framework of the U.S. Environmental Protection Agency's Clean Air Act, including standards for emissions of sulfur dioxide, nitrogen oxides, and particulate matter. As a gas-fired plant, it benefits from lower carbon intensity compared to coal, but still contributes to greenhouse gas emissions. The plant's technology is typical for modern gas power generation, likely using combined-cycle or simple-cycle turbines. Coolidge Generation Station is an important asset for grid reliability in Arizona, providing dispatchable power to complement renewable sources. Its location in the arid Southwest means water usage for cooling is a consideration, though gas plants generally require less water than coal or nuclear. The plant supports the local economy and energy infrastructure.

The plant's gas fuel type results in lower CO2, SOx, and NOx emissions compared to coal, but it still contributes to regional air quality and greenhouse gas levels. Its location in Arizona's arid climate raises considerations for water use in cooling processes. The facility's capacity of 726 MW places it in the medium-to-large scale for gas plants, and its age and technology (likely combined-cycle) influence its efficiency and environmental footprint.