Joliet 29 Gas Power Plant | Illinois, United States

Joliet 29 is a gas-fired power plant located in Illinois, United States, with a capacity of 1,320 megawatts (MW). It is owned and operated by Midwest Generations EME LLC and is currently operational. The plant plays a significant role in the region's power generation mix, utilizing natural gas as its primary fuel. The plant operates under the regulatory framework of the U.S. Environmental Protection Agency (EPA), including the Clean Air Act (CAA) and associated programs such as the Acid Rain Program and the Cross-State Air Pollution Rule (CSAPR). Gas-fired plants like Joliet 29 typically employ combined-cycle or simple-cycle technology, with modern units achieving high efficiency and lower emissions compared to coal-fired plants. Joliet 29 contributes to grid reliability and supports the integration of renewable energy sources by providing flexible generation. Its location in Illinois places it within a region with diverse energy needs, serving both urban and industrial customers. The plant's environmental footprint is managed through compliance with federal and state emission standards.

As a gas-fired power plant, Joliet 29 produces lower carbon dioxide (CO2), sulfur dioxide (SO2), and nitrogen oxides (NOx) emissions per megawatt-hour compared to coal plants. However, natural gas combustion still contributes to greenhouse gas emissions. The plant's location in Illinois, a state with varied air quality concerns, requires adherence to National Ambient Air Quality Standards (NAAQS) and state implementation plans. Proximity to populated areas may influence local air quality impacts, though modern gas plants are designed with emission controls.