List of power stations in Wyoming

Sources of Wyoming electricity generation, full-year 2022:[1]

  Coal (71.1%)

  Wind (22.1%)

  Natural gas (4.3%)

  Hydroelectric (1.9%)

  Solar (0.5%)

This is a list of electricity-generating power stations in the U.S. state of Wyoming, sorted by type and name. In 2021, Wyoming had a total summer capacity of 10,096 MW through all of its power plants, and a net generation of 46,017 GWh in 2022.[2] The corresponding electrical energy generation mix was 71.1% coal, 22.1% wind, 4.3% natural gas, 1.9% hydroelectric and 0.5% solar. Small-scale solar, which includes customer-owned photovoltaic panels, delivered 23 GWh to Wyoming's electrical grid.[1]

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.[3]

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.[4] On 16 November 2021, Pacificorp announced the selection of the Naughton Power Plant in Kemmerer, Wyoming for the Natrium Demonstration Project.[5]

Fossil-fuel power stations

Data from the U.S. Energy Information Administration serves as a general reference.[6]

Coal

Name	Location	Coordinates	Capacity (MW)	Number of steam turbine units	Year completed	Retirement schedule	Refs
Dave Johnston	Converse County	42.8378°N 105.7769°W / 42.8378; -105.7769 (Dave Johnston)	922.2	4	1957 (Unit 1) 1961 (Unit 2) 1964 (Unit 3) 1972 (Unit 4)	2027	[7]
General Chemical	Sweetwater County	41.5933°N 109.7542°W / 41.5933; -109.7542 (General Chemical)	30	2	1968 (Unit 1) 1977 (Unit 2)		[8]
Genesis Alkali	Sweetwater County	41.6217°N 109.8119°W / 41.6217; -109.8119 (Genesis Alkali)	41	6	1953-1975		[9]
Jim Bridger Power Station	Sweetwater County	41.7378°N 108.7857°W / 41.7378; -108.7857 (Jim Bridger)	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)	[7]
Laramie River Station	Platte County	42.1089°N 104.8825°W / 42.1089; -104.8825 (Laramie River)	1,710	3	1981 (Unit 1) 1981 (Unit 2) 1982 (Unit 3)		[10]
Naughton Power Plant	Lincoln County	41.7581°N 110.5983°W / 41.7581; -110.5983 (Naughton)	832	3	1963 (Unit 1) 1968 (Unit 2) 1971 (Unit 3)	2025 (Unit 1) 2025 (Unit 2) 2019 (unit 3)	[7]
Neil Simpson I	Campbell County	44.2872°N 105.3878°W / 44.2872; -105.3878 (Neil Simpson I)	22	1	1959	2014 (closed)	[11][12]
Neil Simpson II	Campbell County	44.2857°N 105.3833°W / 44.2857; -105.3833 (Neil Simpson II)	80	1	1995		[12]
Wygen I	Campbell County	44.2858°N 105.3833°W / 44.2858; -105.3833 (Wygen 1)	90	1	2003		[13]
Wygen II	Campbell County	44.2919°N 105.3811°W / 44.2919; -105.3811 (Wygen 2)	95	1	2008		[14]
Wygen III	Campbell County	44.2919°N 105.3806°W / 44.2919; -105.3806 (Wygen 3)	116	1	2010		[15]
Wyodak	Campbell County	44.2901°N 105.3815°W / 44.2901; -105.3815 (Wyodak)	402.3	1	1978	2038	[16][17][18]

Natural gas

Name	Location	Coordinates	Capacity (MW)	Generation type	Year completed	Refs
Arvada	Sheridan County	44.6900°N 106.1092°W / 44.6900; -106.1092 (Arvada)	22.5	Simple cycle (x3)	2002	[19]
Barber Creek	Campbell County	43.7219°N 105.7689°W / 43.7219; -105.7689 (Barber Creek)	22.5	Simple cycle (x3)	2002	[20][19]
Beaver Creek Gas Plant	Fremont County	42.8475°N 108.3136°W / 42.8475; -108.3136 (Beaver Creel)	3.6	Simple cycle (x2)	1983	[21]
Big Sand Draw Plant	Fremont County	42.7527°N 108.1697°W / 42.7527; -108.1697 (Big Sand Draw)	8.0	Reciprocating engine (x5)	2015	[22]
Cheyenne Prairie Generating Station	Laramie County	41.1236°N 107.7200°W / 41.1236; -107.7200 (Cheyenne Prairie)	140	2x1 combined cycle, simple cycle	2014	[23]
Hartzog	Campbell County	43.8294°N 105.5322°W / 43.8294; -105.5322 (Hartzog)	22.5	Simple cycle (x3)	2002	[19]
Neil Simpson	Campbell County	44.2850°N 105.3786°W / 44.2850; -105.3786 (Neil Simpson)	68	Simple cycle (x2)	2000/2001	[11]
Sinclair Oil Refinery	Carbon County	41.7795°N 107.1097°W / 41.7795; -107.1097 (Sinclair Refinery)	3.9	Reciprocating engine (x3)	2012	[24]
Western Sugar Cooperative - Torrington	Goshen County	42.0469°N 104.1863°W / 42.0469; -104.1863 (Western Sugar - Torrington)	2.0	Steam turbine	1923 2018 (closed)	[25][26]

Other petroleum gases

Name	Location	Coordinates	Capacity (MW)	Fuel type	Generation type	Year completed	Refs
Beaver Creek Gas Plant	Fremont County	42.8475°N 108.3136°W / 42.8475; -108.3136 (Beaver Creek)	0.9	All other	Steam turbine	2018	[21]
Elk Basin Gasoline Plant	Park County	44.9806°N 108.8428°W / 44.9806; -108.8428 (Elk Basin Gasoline)	2.0	Other gases	Steam turbine (x2)	1948	[27]
Shute Creek Facility	Lincoln County	41.8805°N 110.0904°W / 41.8805; -110.0904 (Shute Creek)	144	Other gases	Simple cycle (x3)	2005	[28]
Sinclair Oil Refinery	Carbon County	41.7795°N 107.1097°W / 41.7795; -107.1097 (Sinclair Refinery)	1.7	Other gases	Steam turbine (x2)	1926/1954	[24]

Petroleum liquids

Name	Location	Coordinates	Capacity (MW)	Generation type	Year completed	Refs
Lake	Teton County	44.4150°N 110.5739°W / 44.4150; -110.5739 (Lake)	2.7	Reciprocating engine	1967
Old Faithful	Teton County	44.4533°N 110.8347°W / 44.4533; -110.8347 (Old Faithful)	2.0	Reciprocating engine (x2)	1979
Sinclair Oil Refinery	Carbon County	41.7795°N 107.1097°W / 41.7795; -107.1097 (Sinclair Refinery)	1.1	Reciprocating engine	1955	[24]

Renewable power stations

Data from the U.S. Energy Information Administration serves as a general reference.[6]

Biomass and industrial waste

Name	Location	Coordinates	Capacity (MW)	Fuel type	Generation type	Year completed	Refs
Simplot Phosphates	Sweetwater County	41.5417°N 109.1328°W / 41.5417; -109.1328 (Simplot Phosphates)	11.5	Industrial waste heat^[A]	Steam turbine	1986	[29][30]

^A 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.[3]

Hydroelectric

See also: List of dams and reservoirs in Wyoming

Name	Location	Coordinates	Capacity (MW)	Number of turbines	Year completed	Refs
Alcova	Natrona County	42.5484°N 106.7075°W / 42.5484; -106.7075 (Alcova)	41.4	2	1955	[31]
Boysen	Fremont County	43.4179°N 108.1775°W / 43.4179; -108.1775 (Boysen)	15	2	1952	[32]
Buffalo Bill	Park County	44.5082°N 109.1707°W / 44.5082; -109.1707 (Buffalo Bill)	18	3	1992	[33]
Fontenelle	Lincoln County	42.0270°N 110.0640°W / 42.0270; -110.0640 (Fontenelle)	10	1	1968	[34]
Fremont Canyon	Natrona County	42.4766°N 106.7959°W / 42.4766; -106.7959 (Fremont Canyon)	66.8	2	1960/1961	[35]
Garland Canal	Park County	44.7264°N 108.8644°W / 44.7264; -108.8644 (Garland Canal)	2.9	1	1983
Glendo	Platte County	42.4673°N 104.9555°W / 42.4673; -104.9555 (Glendo)	38	2	1958/1959	[36]
Guernsey	Platte County	42.2899°N 104.7606°W / 42.2899; -104.7606 (Guernsey)	6.4	2	1927/1928	[37]
Heart Mountain	Park County	44.5138°N 109.1296°W / 44.5138; -109.1296 (Heart Mountain)	5.0	1	1948	[38]
Kortes	Carbon County	42.1743°N 106.8805°W / 42.1743; -106.8805 (Kortes)	36	3	1950/1951	[39]
Pilot Butte	Fremont County	43.2190°N 108.7877°W / 43.2190; -108.7877 (Pilot Butte)	1.6	2	1925/1929	[40]
Salt River	Carbon County	43.1195°N 111.0352°W / 43.1195; -111.0352 (Salt River)	0.6	2	1936 1967 (closed)	[41]
Seminoe	Carbon County	42.1561°N 106.9085°W / 42.1561; -106.9085 (Seminoe)	51.6	3	1939	[42]
Shoshone (WY)	Park County	44.5029°N 109.1812°W / 44.5029; -109.1812 (Shoshone)	3.0	1	1922	[43]
Spirit Mountain	Park County	44.5127°N 109.1299°W / 44.5127; -109.1299 (Spirit Mountain)	4.5	1	1994	[44]
Strawberry Creek	Lincoln County	42.9051°N 110.8934°W / 42.9051; -110.8934 (Strawberry Creek)	1.5	3	1940/1951	[45]
Swift Creek	Lincoln County	42.7284°N 110.9166°W / 42.7284; -110.9166 (Swift Creek)	1.7	3	2009/2010	[46][47]

Solar

See also: Solar power in Wyoming

Plant	Location	Coordinates	Capacity (MWAC)	Year completed	Refs
South Cheyenne Solar	Laramie County		150	2024	[48]
Sweetwater Solar	Sweetwater County	41.6291°N 109.6835°W / 41.6291; -109.6835 (Sweetwater)	92	2018	[49]

Wind

Wind

See also: Wind power in Wyoming

Additional data reported by the United States Wind Turbine Database[50]

Plant	Location	Coordinates	Capacity (MW)	Number of turbines	Year completed	Refs
Campbell Hill Windpower	Converse County	43.0146°N 105.9990°W / 43.0146; -105.9990 (Cambell Hill)	99	66	2009	[50]
Casper Wind Farm	Natrona County	42.8847°N 106.2214°W / 42.8847; -106.2214 (Casper)	16.5	11	2009	[50]
Cedar Springs Wind Farm (I-III)	Converse County	42.9850°N 105.4325°W / 42.9850; -105.4325 (Cedar Springs)	531.56	192	2020	[50]
Corriedale Wind Energy Project	Laramie County	41.0992°N 104.9757°W / 41.0992; -104.9757 (Corriedale)	59.22	21	2020	[50]
Dunlap	Carbon County	42.0436°N 106.1603°W / 42.0436; -106.1603 (Dunlap)	136.9	74	2010	[50]
Ekola Flats	Carbon County	41.9360°N 106.3122°W / 41.9360; -106.3122 (Ekola Flats)	250.9	63	2020	[50]
Foote Creek I	Carbon County	41.6283°N 106.2013°W / 41.6283; -106.2013 (Foot Creek I)	41.4	69	1999	[50]
Foote Creek II, III, IV Repowering	Carbon County	41.6699°N 106.1839°W / 41.6699; -106.1839 (Foote Creek II, III, IV)	46.2	11	2023	[50]
Glenrock	Converse County	43.0181°N 105.8353°W / 43.0181; -105.8353 (Glenrock)	119.3	66	2008	[50]
Happy Jack Windpower Project	Laramie County	41.1397°N 104.9978°W / 41.1397; -104.9978 (Happy Jack)	29.4	14	2008	[50]
High Plains	Albany County	41.6751°N 106.0111°W / 41.6751; -106.0111 (High Plains)	122.1	66	2009	[50]
McFadden Ridge	Albany County	41.6559°N 106.0375°W / 41.6559; -106.0375 (McFadden Ridge)	35.15	19	2009	[50]
Medicine Bow	Carbon County	41.8353°N 106.2431°W / 41.8353; -106.2431 (Medicine Bow)	3.55	5	2015	[50]
Mountain Wind Power II	Uinta County	41.2639°N 110.5444°W / 41.2639; -110.5444 (Mountain Wind II)	79.8	38	2008	[50]
Mountain Wind Power LLC	Uinta County	41.2881°N 110.5030°W / 41.2881; -110.5030 (Mountain Wind I)	60.9	29	2008	[50]
Pioneer Wind Park, LLC	Converse County	42.7282°N 105.8668°W / 42.7282; -105.8668 (Pioneer)	80.0	46	2016	[50]
Rolling Hills Wind Farm	Converse County	43.0572°N 105.8543°W / 43.0572; -105.8543 (Rolling Hills)	115.8	66	2009	[50]
Roundhouse Wind Energy Center	Laramie County	41.0660°N 105.1230°W / 41.0660; -105.1230 (Roundhouse)	226.56	82	2020	[50]
Seven Mile Hill	Carbon County	41.9469°N 106.3936°W / 41.9469; -106.3936 (Seven Mile Hill)	122.1	66	2008	[50]
Silver Sage Windpower	Laramie County	41.1297°N 105.0240°W / 41.1297; -105.0240 (Silver Sage)	42.0	20	2009	[50]
TB Flats I and II	Carbon County	42.1296°N 106.1251°W / 42.1296; -106.1251 (TB Flats)	301.1	85	2021	[50]
Top of the World Windpower Project	Converse County	42.9517°N 105.7727°W / 42.9517; -105.7727 (Top of the World)	200.2	110	2010	[50]
TransAlta Wyoming Wind	Uinta County	41.2874°N 110.5556°W / 41.2874; -110.5556 (Transalta Wyoming)	144.0	80	2003	[50]

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.[51] 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.[52]

Battery storage facilities

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

References

1. "Electricity Data Browser, Net generation for all sectors, Wyoming, Fuel Type-Check all, Annual, 2001–22". www.eia.gov. Retrieved 2023-03-30.
2. "Wyoming Electricity Profile". U.S. Energy Information Administration. Retrieved 2023-03-30.
3. "Wyoming Electricity Profile Analysis". U.S. EIA. Retrieved 2021-01-21.
4. "Natrium™ Reactor Demonstration Project will bring clean energy and jobs to the state". Terrapower. 2021-06-02.
5. "Coal Plant Site Unveiled for 500-MW Natrium Advanced Nuclear Pilot". Powermag. 2021-11-17.
6. Energy Information Administration (15 September 2020). "Form EIA-860 detailed data with previous form data (EIA-860A/860B)". eia.gov. Archived from the original on 18 September 2020.
7. "PacifiCorp details early Bridger, Naughton coal closures". WyoFile. 2019-10-03. Retrieved 2020-06-07.
8. "General Chemical Green River Power Plant". Global Energy Monitor. Retrieved 2021-05-08.
9. "Genesis Alkali". Genesis Energy LLC. Retrieved 2021-05-08.
10. "Laramie River Station". Global Energy Monitor. Retrieved 2021-05-08.
11. "Black Hills Corp. closes coal unit at Wyodak Neil Simpson complex in Gillette". Casper Star Tribune. Retrieved 2020-02-28.
12. "Neil Simpson Power Plants". Global Energy Monitor. Retrieved 2021-05-08.
13. "Wygen Station". Global Energy Monitor. Retrieved 2021-05-08.
14. "Wygen II". Global Energy Monitor. Retrieved 2021-05-08.
15. "Wygen III". Global Energy Monitor. Retrieved 2021-05-08.
16. "PacifiCorp: early closure of Wyo coal plants saves $599 million". WyoFile. 2019-09-10. Retrieved 2020-06-07.
17. "Wyodak Power Plant". Global Energy Monitor. Retrieved 2021-05-08.
18. "Wyodak Mine". Global Energy Monitor. Retrieved 2021-05-08.
19. "Wyoming Distributed Generation". Basin Electric Power Cooperative. Retrieved 2020-03-03.
20. "Barber Creek". Energy Justice Network. Retrieved 2020-03-03.
21. "Beaver Creek Gas Plant". Energy Justice Network. Retrieved 2020-03-03.
22. Laura Hancock (2015-09-23). "Oil recovery plant breaks ground in Riverton Wyoming". Billings Gazette.
23. "Cheyenne Prairie Generating Station". Black Hills Corporation. Retrieved 2020-03-03.
24. "Sinclair Wyoming Refining Company". Sinclair. Retrieved 2021-05-04.
25. "Our Facilities". Great Western Sugar Coop. Retrieved 2021-01-21.
26. Joshua Wolfson (2018-11-28). "After 95 years, Torrington sugar beet plant to stop production". Casper Star Tribune.
27. "Elk Basine Gasoline Waste Plant WY". Global Energy Observatory. Retrieved 2021-05-04.
28. Dan Kubek (2009-03-30). "Large CO2 sources and capture systems: ExxonMobil LaBarge-Shute Creek, WY Natural Gas Plant" (PDF). Gas Processing Solutions LLC.
29. "Simplot Phosphates" (PDF). www.simplot.com. Retrieved 2021-01-21.
30. "Project Profile - Waste Heat to Electricity In Fertilizer Manufacturing" (PDF). Simplot Leasing Corp. Retrieved 2021-01-07.
31. "Alcova Powerplant". U.S. Bureau of Reclamation. Retrieved 2021-01-22.
32. "Boysen Powerplant". U.S. Bureau of Reclamation. Retrieved 2021-01-22.
33. "Buffalo Bill Powerplant". U.S. Bureau of Reclamation. Retrieved 2021-01-22.
34. "Fontenelle Powerplant". U.S. Bureau of Reclamation. Retrieved 2021-01-22.
35. "Freemont Canyon Powerplant". U.S. Bureau of Reclamation. Retrieved 2021-01-22.
36. "Glendo Powerplant". U.S. Bureau of Reclamation. Retrieved 2021-01-22.
37. "Guernsey Powerplant". U.S. Bureau of Reclamation. Retrieved 2021-01-22.
38. "Heart Mountain Powerplant". U.S. Bureau of Reclamation. Retrieved 2021-01-22.
39. "Kortes Powerplant". U.S. Bureau of Reclamation. Retrieved 2021-01-22.
40. "Pilot Butte Powerplant". U.S. Bureau of Reclamation. Retrieved 2021-01-22.
41. Scott D. Heiner and Rheba Massey (August 30, 1991). "National Register of Historic Places Registration: Salt River Hydroelectric Plant Historic District". National Park Service. and accompanying nine photos from 1992-93
42. "Seminoe Powerplant". U.S. Bureau of Reclamation. Retrieved 2021-01-22.
43. "Shoshone Powerplant". U.S. Bureau of Reclamation. Retrieved 2021-01-22.
44. "Spirit Mountain Powerplant". U.S. Bureau of Reclamation. Retrieved 2021-01-22.
45. "Strawberry Creek Hydro Plant". Global Energy Observatory. Retrieved 2021-01-22.
46. "Clean Renewable Energy Bonds fund rehab of 1.55-MW Wyoming hydro". Hydro Review. 2008-06-12.
47. "Upper Swift Creek". Canyon Hydro. Retrieved 2021-01-22.
48. Power, Southern. "Southern Power's South Cheyenne Solar Facility in Wyoming is now operational". www.prnewswire.com. Retrieved 2024-05-18.
49. "Sweetwater". Swinerton Renewable Energy. Retrieved 2021-01-21.
50. "United States Wind Turbine Database Viewer". United States Geological Survey. Retrieved January 14, 2025.
51. Erickson, Camille (2019-10-21). "Work on Wyoming's largest wind farm project continues even as schedule changes". Casper Star-Tribune Online. Retrieved 2020-01-30.
52. Matthew Bandyk (2019-10-25). "Largest planned wind farm in US gets key federal approval". Utility Dive.