Caledonia Gas Power Plant: 801 MW Facility in Mississippi, USA

Caledonia is a gas-fired power plant located in Mississippi, United States, with a capacity of 801 megawatts. The facility is owned and operated by the Tennessee Valley Authority (TVA), a major federal utility serving the southeastern US. As a gas power plant, it plays a key role in the regional energy mix, offering flexible generation to meet demand. The plant operates under the regulatory framework of the US Environmental Protection Agency (EPA), including the Clean Air Act and its associated programs such as the Acid Rain Program and the Cross-State Air Pollution Rule (CSAPR). Gas-fired plants like Caledonia typically use combined-cycle technology for higher efficiency and lower emissions compared to coal plants. The 801 MW capacity places it in the large-scale category for gas power generation. Caledonia contributes to TVA's diverse portfolio, supporting grid stability and providing electricity to homes and businesses across the region. Its gas-fueled design results in lower CO2, SOx, and NOx emissions per megawatt compared to coal, aligning with environmental goals. The plant's operational status ensures continued service to the community.

Gas power plants like Caledonia have a lower environmental footprint than coal plants, with reduced CO2, SOx, and NOx emissions. The facility's location in Mississippi, a state with moderate population density, minimizes direct impact on densely populated areas. However, natural gas extraction and transport can involve methane leakage, a potent greenhouse gas. The plant's age and technology (likely combined-cycle) influence its efficiency and emissions profile.