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 1 mile (1.6 km) upstream from a much smaller coal-fired Frank E. Ratts Generating Station. Petersburg G.S. is owned and operated by AES Indiana (formerly known as Indianapolis Power & Light).^[1]

Petersburg Generating Station
Country	United States
Location	Washington Township, Pike County, near Petersburg, Indiana
Coordinates	38°31′39″N 87°15′14″W
Status	Operational
Commission date	Unit 1: 1967 Unit 2: 1969 Unit 3: 1977 Unit 4: 1986
Owner	AES Indiana
Thermal power station
Primary fuel	Bituminous coal
Turbine technology	Steam turbine
Cooling source	White River
Power generation
Nameplate capacity	2,146 MWe

Units 1, 2, and 3, rated at 281.6, 523.3, and 670.9 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.^[2] A 200 MW / 800 MWh grid battery started operating in 2025.^[3]

See also

• Indiana portal
• Energy portal

• List of largest power stations in the United States
• List of power stations in Indiana
• Global warming