Petersburg Generating Station

{{Use American English|date=July 2025}}

{{More citations needed|date=January 2009}}

{{Infobox power station

|name = Petersburg Generating Station

|image =

|image_caption =

|country = United States

|location = Washington Township, Pike County, near Petersburg, Indiana

| coordinates = {{coord|38|31|39|N|87|15|14|W|region:US-IN_type:landmark|display=inline,title}}

|owner = AES Indiana

|status = O

|th_fuel_primary = Bituminous coal

|ps_cooling_source = White River

|th_technology = Steam turbine

|ps_combined_cycle =

|ps_electrical_capacity= 2,146 MWe

|commissioned = Unit 1: 1967
Unit 2: 1969
Unit 3: 1977
Unit 4: 1986

|decommissioned =

}}

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 {{convert|1|mi|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).{{cite web

| title = Existing Electric Generating Units in the United States, 2006

| work =

| publisher = Energy Information Administration, U.S. Department of Energy

| year = 2006

| url = http://www.eia.doe.gov/cneaf/electricity/page/capacity/capacity.html

| format = Excel

| doi =

| accessdate = 2008-07-14}}

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.{{cite web |title=AES Will Convert Remaining Coal Units to Burn Natural Gas – The Coal Trader |url=https://thecoaltrader.com/aes-will-convert-remaining-coal-units-to-burn-natural-gas/ |date=31 March 2025}} A 200 MW / 800 MWh grid battery started operating in 2025.{{cite web |title=AES Indiana aquisition of Crossvine bp solar panel project approved; completes Pike County battery park project |url=https://duboiscountyfreepress.com/aes-indiana-aquisition-of-crossvine-bp-solar-panel-project-approved-completes/ |website=Dubois County Free Press, Inc. |date=23 April 2025}}