The Cass County Renewable Energy Center, located in Beardstown, Illinois, operates under the SERC Reliability Corporation within the NERC region. This solar power facility boasts an operating capacity of 150 megawatts, contributing significantly to the energy needs of the Midcontinent Independent System Operator’s power control area. The plant is regulated and is primarily owned by Union Electric Company, a subsidiary of Ameren Corporation, which also serves as the holding company. Utilizing solar energy as its fuel source, the Cass County Renewable Energy Center exemplifies a commitment to sustainable energy production and innovation in the renewable energy sector.