This is a list of electricity-generating power stations in the U.S. state of Wyoming, sorted by type and name. In 2024, Wyoming had a total summer capacity of 10.8 GW through all of its power plants, and a net generation of 40,709 GWh. The electrical energy generation mix in 2025 was 58.5% coal, 27.1% wind, 9.9% natural gas, 2.3% hydroelectric, 1.1% solar, 0.8% other gases, 0.1% petroleum, and 0.2% other. Small-scale solar, which includes customer-owned photovoltaic panels, delivered 41 GWh to Wyoming's electrical grid in 2025.

Wyoming has the smallest population in the U.S., and in 2019 three-fifths of its electricity generation was sent to nearby western states. It contains more than one-third of the nation's recoverable coal reserves, accounted for two-fifths of all related U.S. mining activity, and exported much of its low-sulfur coal to power plants in 29 other states. Wyoming also mined and exported nearly all the uranium used to fuel the nation's fleet of nuclear power stations. These activities have declined somewhat in recent years, while extraction of Wyoming's oil and gas reserves continued to expand.

Nuclear power stations Wyoming has no utility-scale nuclear facilities. In June 2021, Terrapower and Pacificorp announced their intention to advance a novel reactor demonstration project at the site of a retiring coal plant in Wyoming. On 16 November 2021, Pacificorp announced the selection of the Naughton Power Plant in Kemmerer, Wyoming, for the Natrium Demonstration Project.

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

Coal Name Location Coordinates Capacity (MW) Number of steam turbine units Yearcompleted Retirement schedule Refs Dave Johnston Converse County 922.2 4 1957 (Unit 1) 1961 (Unit 2) 1964 (Unit 3) 1972 (Unit 4) 2027 General Chemical Sweetwater County 30 2 1968 (Unit 1) 1977 (Unit 2) Genesis Alkali Sweetwater County 41 6 1953-1975 Jim Bridger Power Station Sweetwater County 2,441.9 4 1974 (Unit 1) 1975 (Unit 2) 1976 (Unit 3) 1979 (Unit 4) 2038 (Unit 1) 2038 (Unit 2) 2023 (Unit 3) 2028 (Unit 4) Laramie River Station Platte County 1,710 3 1981 (Unit 1)1981 (Unit 2) 1982 (Unit 3) Naughton Power Plant Lincoln County 832 3 1963 (Unit 1)1968 (Unit 2) 1971 (Unit 3) 2025 (Unit 1) 2025 (Unit 2) 2019 (unit 3) Neil Simpson I Campbell County 22 1 1959 2014 (closed) Neil Simpson II Campbell County 80 1 1995 Wygen I Campbell County 90 1 2003 Wygen II Campbell County 95 1 2008 Wygen III Campbell County 116 1 2010 Wyodak Campbell County 402.3 1 1978 2038

Natural gas Name Location Coordinates Capacity(MW) Generationtype Yearcompleted Refs Arvada Sheridan County 22.5 Simple cycle (x3) 2002 Barber Creek Campbell County 22.5 Simple cycle (x3) 2002 Beaver Creek Gas Plant Fremont County 3.6 Simple cycle (x2) 1983 Big Sand Draw Plant Fremont County 8.0 Reciprocating engine (x5) 2015 Cheyenne Prairie Generating Station Laramie County 140 2x1 combined cycle,simple cycle 2014 Hartzog Campbell County 22.5 Simple cycle (x3) 2002 Neil Simpson Campbell County 68 Simple cycle (x2) 2000/2001 Sinclair Oil Refinery Carbon County 3.9 Reciprocating engine (x3) 2012 Western Sugar Cooperative - Torrington Goshen County 2.0 Steam turbine 19232018 (closed)

Other petroleum gases Name Location Coordinates Capacity(MW) Fuel type Generationtype Yearcompleted Refs Beaver Creek Gas Plant Fremont County 0.9 All other Steam turbine 2018 Elk Basin Gasoline Plant Park County 2.0 Other gases Steam turbine (x2) 1948 Shute Creek Facility Lincoln County 144 Other gases Simple cycle (x3) 2005 Sinclair Oil Refinery Carbon County 1.7 Other gases Steam turbine (x2) 1926/1954

Petroleum liquids Name Location Coordinates Capacity(MW) Generationtype Yearcompleted Refs Lake Teton County 2.7 Reciprocating engine 1967 Old Faithful Teton County 2.0 Reciprocating engine (x2) 1979 Sinclair Oil Refinery Carbon County 1.1 Reciprocating engine 1955

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

Biomass and industrial waste Name Location Coordinates Capacity(MW) Fuel type Generationtype Yearcompleted Refs Simplot Phosphates Sweetwater County 11.5 Industrial waste heat Steam turbine 1986 Waste heat from phosphate fertilizer manufacturing

Geothermal Wyoming has no utility-scale geothermal facilities. It has a number of small-scale geothermal installations used mostly to heat buildings.

Hydroelectric

Name Location Coordinates Capacity(MW) Number ofturbines Yearcompleted Refs Alcova Natrona County 41.4 2 1955 Boysen Fremont County 15 2 1952 Buffalo Bill Park County 18 3 1992 Fontenelle Lincoln County 10 1 1968 Fremont Canyon Natrona County 66.8 2 1960/1961 Garland Canal Park County 2.9 1 1983 Glendo Platte County 38 2 1958/1959 Guernsey Platte County 6.4 2 1927/1928 Heart Mountain Park County 5.0 1 1948 Kortes Carbon County 36 3 1950/1951 Pilot Butte Fremont County 1.6 2 1925/1929 Salt River Carbon County 0.6 2 19361967 (closed) and Seminoe Carbon County 51.6 3 1939 Shoshone (WY) Park County 3.0 1 1922 Spirit Mountain Park County 4.5 1 1994 Strawberry Creek Lincoln County 1.5 3 1940/1951 Swift Creek Lincoln County 1.7 3 2009/2010

Solar

Plant Location Coordinates Capacity(MWAC) Yearcompleted RefsSouth Cheyenne SolarLaramie County1502024 Sweetwater Solar Sweetwater County 92 2018

Wind

Additional data reported by the United States Wind Turbine DatabasePlant Location Coordinates Capacity(MW) Number ofturbines Yearcompleted Refs Campbell Hill Windpower Converse County 99 66 2009 Casper Wind Farm Natrona County 16.5 11 2009 Cedar Springs Wind Farm (I-III) Converse County 531.56 192 2020 Corriedale Wind Energy Project Laramie County 59.22 21 2020 Dunlap Carbon County 136.9 74 2010 Ekola Flats Carbon County 250.9 63 2020 Foote Creek I Carbon County 41.4 69 1999 Foote Creek II, III, IV Repowering Carbon County 46.2 11 2023 Glenrock Converse County 119.3 66 2008 Happy Jack Windpower Project Laramie County 29.4 14 2008 High Plains Albany County 122.1 66 2009 McFadden Ridge Albany County 35.15 19 2009 Medicine Bow Carbon County 3.55 5 2015 Mountain Wind Power II Uinta County 79.8 38 2008 Mountain Wind Power LLC Uinta County 60.9 29 2008 Pioneer Wind Park, LLC Converse County 80.0 46 2016 Rolling Hills Wind Farm Converse County 115.8 66 2009 Roundhouse Wind Energy Center Laramie County 226.56 82 2020 Seven Mile Hill Carbon County 122.1 66 2008 Silver Sage Windpower Laramie County 42.0 20 2009 TB Flats I and II Carbon County 301.1 85 2021 Top of the World Windpower Project Converse County 200.2 110 2010 TransAlta Wyoming Wind Uinta County 144.0 80 2003

The Chokecherry and Sierra Madre Wind Energy Project, with a planned capacity of up to 3,000 MW generated by about 1,000 turbines, is under construction in Carbon County and scheduled for completion in 2026. It would be the largest wind farm in the U.S. upon completion, and would serve the western U.S. market through planned new HVDC transmission capacity.

Battery storage facilities Wyoming had no utility-scale battery storage facilities in 2019.

See also

List of power stations in the United States

References