Clinton Power Station

Constellation NuclearDeWitt CountyMISO

Clinton Clean Energy Center, listed in the EIA registry as Clinton Power Station, is a nuclear generating station in DeWitt County, Illinois, associated with MISO. The EIA plant baseline lists 1,138.3 MW of nameplate capacity. Constellation describes a single reactor with up to 1,092 MW of capacity and says the Nuclear Regulatory Commission approved a license renewal on December 16, 2025, extending the license through April 17, 2047.