Petersburg Generating Station

Petersburg Generating Station is a major coal-fired power plant in Indiana, rated at 2.146-GW nameplate capacity. It is located on the White River near Petersburg in Pike [County, Indiana], just upstream from a much smaller coal-fired Frank E. Ratts Generating Station. Petersburg G.S. is owned and operated by AES Indiana.
Units 1, 2, and 3, rated at 281.6, 523.3, and 670.9 Watt#Conventions in the [electric power industry|MWe], were launched into operation in 1967, 1969, and 1977 respectively. Unit 4, rated at 670.9 MWe, was launched in 1986. There are also three minor oil-burning internal combustion units, rated at 2.7 MWe each, all launched in 1967.
The coal is supplied from Bear Run [Coal Mine] and Gibson Coal Mine. The station plans to switch to natural gas by 2026. A 200 MW / 800 MWh Battery [energy storage system|grid battery] started operating in 2025.