Directory of Power Plants in Wyoming
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Arvada | Basin Electric Power Coop | Arvada, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 216.0 MWh | Aug 2002 | Dec 2023 | Natural Gas |
| Old Faithful | NorthWestern Energy (MT wind/thermal) | Yellowstone, WY | NorthWestern Corporation (NWMT) | 249.0 MWh | Nov 1979 | Dec 2023 | Distillate Fuel Oil |
| Lake (WY) | NorthWestern Energy (MT wind/thermal) | Yellowstone, WY | NorthWestern Corporation (NWMT) | 252.0 MWh | Aug 1967 | Dec 2023 | Distillate Fuel Oil |
| Hartzog | Basin Electric Power Coop | Wright, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 318.0 MWh | Jul 2002 | Dec 2023 | Natural Gas |
| Barber Creek | Basin Electric Power Coop | Gillette, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 359.0 MWh | Aug 2002 | Dec 2023 | Natural Gas |
| Sinclair Oil Refinery | HF Sinclair Parco Refining LLC | Sinclair, WY | PacifiCorp East (PACE) | 4.8 GWh | Dec 1924 | Aug 2024 | Natural Gas |
| Casper Wind Farm | Chevron USA | Evansville, WY | PacifiCorp East (PACE) | 5.7 GWh | Nov 2009 | Dec 2023 | Wind |
| Swift Creek | Lower Valley Energy Inc | Afton, WY | Bonneville Power Administration (BPAT) | 6.3 GWh | Mar 2009 | Dec 2023 | Water |
| Elk Basin Gasoline Plant | Contango Oil and Gas | Powell, WY | PacifiCorp East (PACE) | 7.3 GWh | Dec 1947 | Dec 2023 | Other Gas |
| Strawberry Creek | Lower Valley Energy Inc | Bedford, WY | Bonneville Power Administration (BPAT) | 9.0 GWh | Jul 1940 | Dec 2023 | Water |
| Garland Canal Power Plant | Shoshone Irrigation District | Powell, WY | PacifiCorp East (PACE) | 10.1 GWh | Aug 1983 | Aug 2024 | Water |
| Medicine Bow | SRIV Partnership LLC | Medicine Bow, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 10.9 GWh | Mar 1998 | Dec 2023 | Wind |
| Foote Creek IV | PacifiCorp | Rock River, WY | PacifiCorp East (PACE) | 11.6 GWh | Jul 2000 | Dec 2023 | Wind |
| Foote Creek III | PacifiCorp | McFadden, WY | PacifiCorp East (PACE) | 14.6 GWh | May 1999 | Dec 2023 | Wind |
| Spirit Mountain | U S Bureau of Reclamation | Cody, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 18.4 GWh | Sep 1994 | Oct 2023 | Water |
| Neil Simpson Gas Turbine #2 | Black Hills Power, Inc. | Gillette, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 19.4 GWh | Mar 2001 | Dec 2023 | Natural Gas |
| Shoshone (WY) | U S Bureau of Reclamation | Cody, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 20.1 GWh | Mar 1922 | Dec 2023 | Water |
| Guernsey | U S Bureau of Reclamation | Guernsey, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 21.1 GWh | Jun 1927 | Sep 2023 | Water |
| Heart Mountain | U S Bureau of Reclamation | Cody, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 21.8 GWh | Nov 1948 | Oct 2023 | Water |
| Beaver Creek Gas Plant | Denbury Inc | Riverton, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 21.8 GWh | Nov 1983 | Dec 2023 | Natural Gas |
| Big Sand Draw Plant | Denbury Inc | Riverton, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 39.2 GWh | Feb 2015 | Aug 2024 | Natural Gas |
| Happy Jack Windpower Project | Duke Energy Renewables Services | Cheyenne, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 55.3 GWh | Jul 2008 | Aug 2024 | Wind |
| Fontenelle | U S Bureau of Reclamation | Le Barge, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 63.7 GWh | Apr 1968 | Dec 2023 | Water |
| Alcova | U S Bureau of Reclamation | Alcova, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 68.1 GWh | Jun 1955 | Dec 2023 | Water |
| Buffalo Bill | U S Bureau of Reclamation | Cody, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 73.2 GWh | Aug 1992 | Dec 2023 | Water |
| Glendo | U S Bureau of Reclamation | Glendo, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 80.6 GWh | Nov 1958 | Sep 2023 | Water |
| Boysen | U S Bureau of Reclamation | Thermopolis, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 81.3 GWh | Jul 1952 | Dec 2023 | Water |
| Simplot Phosphates | Simplot Phosphates LLC | Rock Springs, WY | PacifiCorp East (PACE) | 95.8 GWh | Jul 1986 | Aug 2024 | Other Fuel : 91.3% Natural Gas : 8.7% |
| McFadden Ridge | PacifiCorp | Rock River, WY | PacifiCorp East (PACE) | 104.3 GWh | Sep 2009 | Dec 2023 | Wind |
| Silver Sage Windpower | Duke Energy Renewables Services | Cheyenne, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 107.0 GWh | Sep 2009 | Aug 2024 | Wind |
| Mountain Wind Power LLC | Mountain Wind Power LLC | Fort Bridger, WY | PacifiCorp East (PACE) | 131.6 GWh | Jun 2008 | Aug 2024 | Wind |
| Seminoe | U S Bureau of Reclamation | Sinclair, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 140.7 GWh | Jul 1939 | Dec 2023 | Water |
| Kortes | U S Bureau of Reclamation | Sinclair, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 146.2 GWh | May 1950 | Dec 2023 | Water |
| South Cheyenne Solar | Southern Power Co | South Greeley, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 147.7 GWh | - | Aug 2024 | Solar |
| Mountain Wind Power II LLC | Mountain Wind Power II LLC | Fort Bridger, WY | PacifiCorp East (PACE) | 173.9 GWh | Aug 2008 | Aug 2024 | Wind |
| Fremont Canyon | U S Bureau of Reclamation | Alcova, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 176.3 GWh | Nov 1960 | Dec 2023 | Water |
| Sweetwater Solar | Sweetwater Solar LLC | Green River, WY | PacifiCorp East (PACE) | 180.2 GWh | Nov 2018 | Aug 2024 | Solar |
| Rolling Hills | PacifiCorp | Glenrock, WY | PacifiCorp East (PACE) | 187.8 GWh | Dec 2008 | Dec 2023 | Wind |
| Corriedale Wind Energy | Black Hills Service Company LLC | Cheyenne, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 198.3 GWh | Oct 2020 | Aug 2024 | Wind |
| Foote Creek I | PacifiCorp | McFadden, WY | PacifiCorp East (PACE) | 215.5 GWh | Mar 1999 | Dec 2023 | Wind |
| General Chemical | Tata Chemicals Partners | Green River, WY | PacifiCorp East (PACE) | 220.4 GWh | Apr 1968 | Aug 2024 | Bituminous Coal : 72.4% Natural Gas : 27.6% |
| Pioneer Wind Park, LLC | AES Distributed Energy | Glenrock, WY | PacifiCorp East (PACE) | 226.3 GWh | Sep 2016 | Dec 2023 | Wind |
| Roundhouse Renewable Energy II | Roundhouse Renewable Energy II, LLC | Granite, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 260.8 GWh | Nov 2023 | Aug 2024 | Wind |
| Genesis Alkali | Genesis Alkali, LLC | Green River, WY | PacifiCorp East (PACE) | 264.4 GWh | May 1953 | Dec 2023 | Subbituminous Coal : 81.4% Natural Gas : 18.6% |
| TransAlta Wyoming Wind | NextEra Energy Operating Services LLC | Evanston, WY | PacifiCorp East (PACE) | 264.6 GWh | Nov 2003 | Dec 2023 | Wind |
| Top of the World Windpower Project | Duke Energy Renewables Services | Glenrock, WY | PacifiCorp East (PACE) | 272.5 GWh | Sep 2010 | Aug 2024 | Wind |
| Campbell Hill Windpower | Duke Energy Renewables Services | Glenrock, WY | PacifiCorp East (PACE) | 276.4 GWh | Nov 2009 | Aug 2024 | Wind |
| Glenrock | PacifiCorp | Glenrock, WY | PacifiCorp East (PACE) | 314.1 GWh | Nov 2008 | Dec 2023 | Wind |
| High Plains | PacifiCorp | Rock River, WY | PacifiCorp East (PACE) | 342.1 GWh | Aug 2009 | Dec 2023 | Wind |
| Cheyenne Prairie Generating Station | Black Hills Service Company LLC | Cheyenne, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 431.8 GWh | Sep 2014 | Aug 2024 | Natural Gas |
| Dunlap | PacifiCorp | Medicine Bow, WY | PacifiCorp East (PACE) | 432.0 GWh | Sep 2010 | Dec 2023 | Wind |
| Seven Mile Hill | PacifiCorp | Medicine Bow, WY | PacifiCorp East (PACE) | 463.2 GWh | Nov 2008 | Dec 2023 | Wind |
| Wygen 1 | Black Hills Power, Inc. | Gillette, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 535.0 GWh | Dec 2002 | Aug 2024 | Subbituminous Coal : 99.8% |
| Cedar Springs III | Cedar Springs Wind III, LLC | Douglas, WY | PacifiCorp East (PACE) | 539.4 GWh | Nov 2020 | Aug 2024 | Wind |
| Cedar Springs II | PacifiCorp | Douglas, WY | PacifiCorp East (PACE) | 596.2 GWh | Nov 2020 | Aug 2024 | Wind |
| Wygen 2 | Black Hills Power, Inc. | Gillette, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 663.4 GWh | Dec 2007 | Dec 2023 | Subbituminous Coal : 99.8% |
| Neil Simpson II | Black Hills Power, Inc. | Gillette, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 685.7 GWh | Aug 1995 | Dec 2023 | Subbituminous Coal : 89.1% Natural Gas : 10.9% |
| Ekola Flats | PacifiCorp | Hanna, WY | PacifiCorp East (PACE) | 748.0 GWh | Nov 2020 | Aug 2024 | Wind |
| Cedar Springs I | Cedar Springs Wind, LLC | Douglas, WY | PacifiCorp East (PACE) | 767.7 GWh | Nov 2020 | Aug 2024 | Wind |
| Wygen III | Black Hills Power, Inc. | Gillette, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 794.7 GWh | Mar 2010 | Dec 2023 | Subbituminous Coal : 99.9% |
| Roundhouse Wind Energy Project | Roundhouse Renewable Energy, LLC | Cheyenne, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 827.6 GWh | May 2020 | Aug 2024 | Wind |
| Shute Creek Facility | Exxon Mobil Production Co | Kemmerer, WY | PacifiCorp East (PACE) | 903.5 GWh | Apr 2005 | Aug 2024 | Natural Gas : 59.7% Other Gas : 40.3% |
| TB Flats | PacifiCorp | Medicine Bow, WY | PacifiCorp East (PACE) | 1.4 TWh | Sep 2021 | Aug 2024 | Wind |
| Wyodak | PacifiCorp | Gillette, WY | PacifiCorp East (PACE) | 1.9 TWh | Aug 1978 | Aug 2024 | Subbituminous Coal : 99.9% |
| Dry Fork Station | Basin Electric Power Coop | Gillette, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 2.7 TWh | Oct 2011 | Aug 2024 | Subbituminous Coal : 99.8% |
| Naughton | PacifiCorp | Kemmerer, WY | PacifiCorp East (PACE) | 3.0 TWh | Apr 1963 | Aug 2024 | Subbituminous Coal : 59.9% Natural Gas : 40.1% |
| Dave Johnston | PacifiCorp | Glen Rock, WY | PacifiCorp East (PACE) | 3.7 TWh | Jan 1959 | Aug 2024 | Subbituminous Coal : 99.8% |
| Laramie River Station | Basin Electric Power Coop | Wheatland, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 7.2 TWh | Jun 1981 | Aug 2024 | Subbituminous Coal : 99.7% |
| Jim Bridger | PacifiCorp | Point of Rocks, WY | PacifiCorp East (PACE) | 8.4 TWh | Oct 1974 | Aug 2024 | Subbituminous Coal : 80.2% Natural Gas : 19.8% |
Browse Power Plants By Wyoming Counties
Figures are based on December 2023 generation numbers.| County | State Rank | Active Plants | Dec 2023 Generation |
|---|---|---|---|
| Sheridan County, WY | # 14 | 1 | 216.0 MWh |
| Teton County, WY | # 13 | 2 | 501.0 MWh |
| Fremont County, WY | # 12 | 4 | 142.3 GWh |
| Park County, WY | # 11 | 6 | 150.8 GWh |
| Natrona County, WY | # 10 | 4 | 250.1 GWh |
| Albany County, WY | # 9 | 8 | 446.5 GWh |
| Uinta County, WY | # 8 | 4 | 570.0 GWh |
| County | State Rank | Active Plants | Dec 2023 Generation |
|---|---|---|---|
| Laramie County, WY | # 7 | 7 | 2.0 TWh |
| Carbon County, WY | # 6 | 18 | 3.6 TWh |
| Lincoln County, WY | # 5 | 5 | 4.0 TWh |
| Converse County, WY | # 4 | 10 | 6.8 TWh |
| Campbell County, WY | # 3 | 11 | 7.3 TWh |
| Platte County, WY | # 2 | 3 | 7.3 TWh |
| Sweetwater County, WY | # 1 | 6 | 9.2 TWh |