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The power plant’s stack is 700’ tall that is 70’ taller than the Gateway Arch in St. Louis, Missouri.



Prairie State Energy Campus represents an important step in helping to create a sustainable and secure energy future for this country. It utilizes domestic coal resources and deploys clean generation technologies to produce electricity in a more efficient and environmentally friendly manner. Located in Washington County, Illinois, Prairie State Energy Campus includes a coal-fired generating plant and adjacent coal mine. The facility generates 1,600 MWs of power, with 95 percent of the output already dedicated to eight Midwestern-based public power utilities.

The Prairie State Energy Campus is a technologically advanced electric generation facility committed to providing clean, reliable and affordable base-load power to hundreds of local communities in the Midwest and Mid-Atlantic regions. Its combined design efficiencies mean Prairie State will significantly improve our industry’s environmental profile by replacing existing, less-efficient power plants.

Reducing Emissions

Prairie State’s power plant is built with Super Critical Technology, meaning that it uses coal at a higher temperature and pressure, producing more power with less coal. Using less coal while generating more power results in lower carbon emissions overall. In a further reduction, unlike coal plants that rail or truck in coal from far away, Prairie State mines its coal across the street from its power plant and transports it, via conveyor system, for its use.

In addition to being a supercritical power plant, per its U.S. EPA air permit requirement, the Prairie State power generating units are equipped with the Best Available Control Technology (BACT).