This is a list of electricity-generating power stations in the U.S. state of South Dakota. In 2024, South Dakota had a total summer capacity of 7.2 GW through all of its power plants, and a net generation of 20,871 GWh. In 2025, the electrical energy generation mix was 57.2% wind, 22% hydroelectric, 9.7% natural gas, 9.1% coal, 2% solar, and 0.1% biomass.

During 2021, South Dakota was among the top U.S. states in its share of renewable electricity generation. It was also among the top states in per-capita consumption. In recent years, more electricity was consumed than was produced and wind generation has been expanding rapidly in the state.

Nuclear power stations The Pathfinder Nuclear Generating Station was an early commercial and demonstration plant near Sioux Falls that generated up to 59 MW of grid-connected electricity for brief periods during years 1966–1967. The single BWR reactor was decommissioned in 1967, the facility converted to use oil and gas in 1968, and ultimately retired in the early 2000s. The reactor and other nuclear components were removed in 1990. South Dakota had no utility-scale plants that used fissile material as a fuel in 2019.

Fossil-fuel power stations Data from the U.S. Energy Information Administration serves as a general reference.

Coal Plant Location Coordinates Capacity(MW) Owner Yearopened Scheduledretirement Ref Ben French Pennington County 25 Black Hills Corp 1961 2014 Big Stone Grant County 475 Otter Tail 1975 TBD

Natural gas Plant Location Coordinates Capacity(MW) Generation type Owner Yearopened RefAberdeen Brown County 52 Simple cycle Northwestern Energy 2013Angus Anson Minnehaha County 327 Simple cycle (x3) Northwestern Energy 1994/2005Ben French Pennington County 68 Simple cycle (x4) Black Hills Corp 1965/1994/2005Deer Creek Station Brookings County 295 1x1 combined cycle Basin Electric Power Coop 2012 NBC News retrieved 30 July 2010Groton Generating Station Brown County 169 Simple cycle (x2) Basin Electric Power Coop 2006/2008 Huron Beadle County 55 Simple cycle (x2) Northwestern Energy 1961/1991Lange GT Pennington County 34 Simple cycle Black Hills Corp 2002OREG Clark Clark County 5.5 ORC generator Basin Electric Power Coop / Ormat 2006 retrieved 5 August 2010OREG Estelline Hamlin County 5.5 ORC generator Basin Electric Power Coop / Ormat 2007 OREG Wetonka McPherson County 5.5 ORC generator Basin Electric Power Coop / Ormat 2006 POET Biorefining - Hudson Lincoln County 3.6 Steam turbine POET LLC 2019 Yankton Yankton County 8.7 Reciprocating engine (x2) Northwestern Energy 1963/1974/1975 Waste heat recovery from natural-gas-fired turbines at compressor stations on the Northern Border Pipeline.

Petroleum Plant Location Coordinates Capacity(MW) Generation type Owner Yearopened RefAberdeen Brown County 20.5 Simple cycle Northwestern Energy 1978Ben French Pennington County 10 Reciprocating engine (x5) Black Hills Corp 1965/1994/2005Clark Clark County 2.6 Reciprocating engine Northwestern Energy 1970Faulkton Faulk County 2.5 Reciprocating engine Northwestern Energy 1969Fort Pierre Stanley County 6 Reciprocating engine (x3) City of Ft. Pierre 2004Lake Preston Kingsbury County 20 Simple cycle Otter Tail 1978 Combustion turbines, retrieved 3 August 2010Watertown Power Plant Codington County 50 Simple cycle Missouri Basin Mun Pwr 1978Yankton Yankton County 4.8 Reciprocating engine (x2) Northwestern Energy 1963/1974/1975

Renewable power stations Data from the U.S. Energy Information Administration serves as a general reference.

Biomass Plant Location Coordinates Capacity(MW) Generation type Fuel type Owner Yearopened RefPOET Biorefining - Chancellor Turner County 5.4 Steam turbine Wood/wood waste POET LLC 2018

Hydroelectric

Name Location Coordinates Capacity(MW) Number of turbines Owner Yearopened Ref Big Bend Dam Buffalo County 494.1 8 United States Army Corps of Engineers-Omaha District 1964-1966 Fort Randall Dam Charles Mix County 320 8 United States Army Corps of Engineers-Omaha District 1954-1956 Gavins Point Dam Yankton County 132 3 United States Army Corps of Engineers-Omaha District 1956-1957 Oahe Dam Hughes County 784 7 United States Army Corps of Engineers-Omaha District 1962-1963 Spearfish Hydro Lawrence County 4 2 City of Spearfish 1912 Former facilities: Johnson Siding Dam - decommissioned 1930's

Solar

Plant Location Coordinates Capacity(MWAC) Owner Yearopened RefPierre Solar Hughes County 1.0 Geronimo EnergyCity of Pierre 2016

Wind

See also list of farms from the South Dakota Public Utilities Commission. Name Location Coordinates Capacity(MW) Number ofturbines Owner Yearopened Ref Aurora County Wind Aurora County 20 9 Con Ed 2018 Beethoven Wind Bon Homme County 80 43 Northwestern Energy 2015 Brule County Wind Brule County 20 9 Con Ed 2018 Buffalo Ridge Wind Brookings County 260 129 Avangrid 2009/2010 Campbell County Wind Campbell County 97.8 56 Con Ed 2015 Chamberlain Wind Brule County 2.6 2 Basin Electric Coop 2002 Coyote Ridge Wind Brookings County 98 38 WEP Energy Group 2019 Crocker Wind Clark County 200 77 Geronimo Energy 2019 Crowned Ridge Wind Codington CountyGrant County 200 87 NextEra Energy 2019 Day County Wind Day County 99 66 Nextera Energy 2019 MinnDakota Wind Brookings County 54 36 Avangrid 2008 Oak Tree Wind Clark County 19.5 11 Con Ed 2014 Prairie Winds Jerauld CountyAurora CountyBrule County 162 101 Basin Electric Coop 2011 Prevailing Wind Park Bon Homme CountyCharles Mix CountyCoddington County 219.6 57 S-Power 2020 South Dakota Wind Energy Center Hyde County 40.5 27 NextEra Energy 2003 Tatanka Wind Farm McPherson County 190(88.5 in SD) 179(59 in SD) Acciona 2008 Tatanka Ridge Wind Farm Deuel County 154.8 56 WEC Energy GroupAvangrid 2021 Titan Wind Project(Rolling Thunder Wind) Hand County 25 10 American Electric Power 2009 Triple H Wind Project Hyde County 250 92 ENGIE US 2020 Wessington Springs Wind Jeraud County 51 34 NextEra Energy 2009 Willow Creek Wind Hand County 103 38 Ørsted 2020

Storage power stations Data from the U.S. Energy Information Administration serves as a general reference.

Battery storage Plant Name Location Coordinates Dischargecapacity (MW) Storagecapacity (MWh) Owner/distributor Yearopened RefRolling Thunder Wind Hybrid Hand County 0.21 0.84 AE Power Services 2018

HVDC converter stations

Project nameLocationCoordinatesCapacity(MW) Voltage(kV)YearopenedRefRapid City B2B Converter Station Pennington County 200 13 2003

References