The William H. Zimmer Power Station, located near Moscow, Ohio, was a 1.35-gigawatt coal power plant. Planned by Cincinnati Gas and Electric (CG&E), with Columbus & Southern Ohio Electric and Dayton Power & Light (DP&L) as its partners, it was originally intended to be a nuclear power plant. Although once estimated to be 97% complete, poor construction and quality assurance (QA) led to the plant being converted to coal-fired generation. The plant began operations in 1991. Today, the plant is owned and operated by Vistra Corp.

Moscow is a village in Clermont County, Ohio. The population was 155 at the time of the 2020 census. The William H. Zimmer Power Station, a coal-fired power plant that was converted from a planned nuclear power plant during construction, is partially located within village limits. It is located near the Ulysses S. Grant Birthplace.