Madison County, Illinois, boasts a diverse array of power plants utilized across the region, spanning various primary energy sources from oil and gas to coal and solar. This dataset provides detailed insights into nine distinct facilities, including large-scale operations like the Sioux power plant with a capacity of nearly 1100 MW primarily using coal, and smaller setups such as the IKEA St. Louis 410 with a solar-based output. The information encapsulates operational details from commissioning years to energy generation statistics, serving as a comprehensive resource for GIS professionals focusing on energy distribution and power generation infrastructure within the area. Whether examining the Anheuser-Busch St Louis facility which combines gas and biomass or analyzing generation trends at Venice powered by gas, this dataset facilitates detailed geospatial analyses of power-related infrastructures.