Mountain Home Energy Center: Diesel Power Plant in Tennessee, USA

Mountain Home Energy Center is a diesel power plant located in Tennessee, United States, with a capacity of 6.8 MW. The facility is owned and operated by Energy Systems Group LLC and is currently operational. As a diesel-fired plant, it serves as a peaking or backup power source, contributing to grid reliability in the region. The plant operates under the regulatory framework of the U.S. Environmental Protection Agency (EPA), including the Clean Air Act (CAA) and associated standards such as the National Ambient Air Quality Standards (NAAQS). Diesel power plants of this scale are subject to emissions limits for particulate matter, nitrogen oxides (NOx), and sulfur dioxide (SO2). The facility's relatively small capacity places it in the small-scale category for power generation. Located in northeastern Tennessee, the plant supports local energy needs and may play a role in stabilizing the grid during peak demand periods. Its diesel fuel source allows for rapid startup and flexibility, though it carries a higher carbon footprint compared to natural gas or renewable sources. The plant's environmental impact is managed through compliance with EPA regulations and local air quality permits.

The plant's diesel fuel type results in higher CO2, SOx, and NOx emissions per MWh compared to natural gas or renewable sources. Its location in Tennessee, a state with mixed energy sources including coal, natural gas, and nuclear, means the plant contributes to local air quality considerations. The 6.8 MW capacity is small, limiting its overall environmental footprint, but diesel combustion still produces particulate matter and other pollutants that are regulated under the Clean Air Act.