Directory of Power Plants in Wyoming
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Laramie River Station | Basin Electric Power Coop | Wheatland, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 9.5 TWh | Jun 1981 | Mar 2024 | Subbituminous Coal : 99.8% |
| Jim Bridger | PacifiCorp | Point of Rocks, WY | PacifiCorp East (PACE) | 8.7 TWh | Oct 1974 | Mar 2024 | Subbituminous Coal : 99.6% |
| Dave Johnston | PacifiCorp | Glen Rock, WY | PacifiCorp East (PACE) | 4.0 TWh | Jan 1959 | Mar 2024 | Subbituminous Coal : 99.8% |
| Naughton | PacifiCorp | Kemmerer, WY | PacifiCorp East (PACE) | 3.2 TWh | Apr 1963 | Mar 2024 | Subbituminous Coal : 64.8% Natural Gas : 35.2% |
| Dry Fork Station | Basin Electric Power Coop | Gillette, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 3.1 TWh | Oct 2011 | Mar 2024 | Subbituminous Coal : 99.8% |
| Wyodak | PacifiCorp | Gillette, WY | PacifiCorp East (PACE) | 2.0 TWh | Aug 1978 | Mar 2024 | Subbituminous Coal : 99.9% |
| TB Flats | PacifiCorp | Medicine Bow, WY | PacifiCorp East (PACE) | 1.4 TWh | Sep 2021 | Mar 2024 | Wind |
| Shute Creek Facility | Exxon Mobil Production Co | Kemmerer, WY | PacifiCorp East (PACE) | 938.8 GWh | Apr 2005 | Mar 2024 | Natural Gas : 59.8% Other Gas : 40.2% |
| Roundhouse Wind Energy Project | Roundhouse Renewable Energy, LLC | Cheyenne, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 884.9 GWh | May 2020 | Mar 2024 | Wind |
| Wygen III | Black Hills Power, Inc. | Gillette, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 880.8 GWh | Mar 2010 | Dec 2022 | Subbituminous Coal : 99.8% |
| Cedar Springs I | Cedar Springs Wind, LLC | Douglas, WY | PacifiCorp East (PACE) | 839.2 GWh | Nov 2020 | Mar 2024 | Wind |
| Ekola Flats | PacifiCorp | Hanna, WY | PacifiCorp East (PACE) | 786.5 GWh | Nov 2020 | Mar 2024 | Wind |
| Wygen 2 | Black Hills Power, Inc. | Gillette, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 784.6 GWh | Dec 2007 | Dec 2022 | Subbituminous Coal : 99.8% |
| Neil Simpson II | Black Hills Power, Inc. | Gillette, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 730.8 GWh | Aug 1995 | Dec 2022 | Subbituminous Coal : 91.7% Natural Gas : 8.3% |
| Wygen 1 | Black Hills Power, Inc. | Gillette, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 718.7 GWh | Dec 2002 | Mar 2024 | Subbituminous Coal : 99.9% |
| Cedar Springs II | PacifiCorp | Douglas, WY | PacifiCorp East (PACE) | 623.6 GWh | Nov 2020 | Mar 2024 | Wind |
| Cedar Springs III | Cedar Springs Wind III, LLC | Douglas, WY | PacifiCorp East (PACE) | 589.7 GWh | Nov 2020 | Mar 2024 | Wind |
| Seven Mile Hill | PacifiCorp | Medicine Bow, WY | PacifiCorp East (PACE) | 566.2 GWh | Nov 2008 | Dec 2022 | Wind |
| Dunlap | PacifiCorp | Medicine Bow, WY | PacifiCorp East (PACE) | 530.1 GWh | Sep 2010 | Dec 2022 | Wind |
| Glenrock | PacifiCorp | Glenrock, WY | PacifiCorp East (PACE) | 516.3 GWh | Nov 2008 | Dec 2022 | Wind |
| Cheyenne Prairie Generating Station | Black Hills Service Company LLC | Cheyenne, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 467.0 GWh | Sep 2014 | Mar 2024 | Natural Gas |
| High Plains | PacifiCorp | Rock River, WY | PacifiCorp East (PACE) | 430.2 GWh | Aug 2009 | Dec 2022 | Wind |
| TransAlta Wyoming Wind | NextEra Energy Operating Services LLC | Evanston, WY | PacifiCorp East (PACE) | 390.6 GWh | Nov 2003 | Dec 2022 | Wind |
| Rolling Hills | PacifiCorp | Glenrock, WY | PacifiCorp East (PACE) | 327.4 GWh | Dec 2008 | Dec 2022 | Wind |
| Genesis Alkali | Genesis Alkali, LLC | Green River, WY | PacifiCorp East (PACE) | 300.2 GWh | May 1953 | Dec 2022 | Subbituminous Coal : 87.4% Natural Gas : 12.6% |
| Campbell Hill Windpower | Duke Energy Renewables Services | Glenrock, WY | PacifiCorp East (PACE) | 299.7 GWh | Nov 2009 | Mar 2024 | Wind |
| Top of the World Windpower Project | Duke Energy Renewables Services | Glenrock, WY | PacifiCorp East (PACE) | 281.3 GWh | Sep 2010 | Mar 2024 | Wind |
| Pioneer Wind Park, LLC | AES Distributed Energy | Glenrock, WY | PacifiCorp East (PACE) | 252.1 GWh | Sep 2016 | Dec 2022 | Wind |
| General Chemical | Tata Chemicals Partners | Green River, WY | PacifiCorp East (PACE) | 245.0 GWh | Apr 1968 | Mar 2024 | Bituminous Coal : 70.6% Natural Gas : 29.4% |
| Foote Creek I | PacifiCorp | McFadden, WY | PacifiCorp East (PACE) | 230.1 GWh | Mar 1999 | Dec 2022 | Wind |
| Corriedale Wind Energy | Black Hills Service Company LLC | Cheyenne, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 214.7 GWh | Oct 2020 | Mar 2024 | Wind |
| Fremont Canyon | U S Bureau of Reclamation | Alcova, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 213.4 GWh | Nov 1960 | Dec 2022 | Water |
| Sweetwater Solar | Sweetwater Solar LLC | Green River, WY | PacifiCorp East (PACE) | 187.7 GWh | Nov 2018 | Mar 2024 | Solar |
| Mountain Wind Power II LLC | Mountain Wind Power II LLC | Fort Bridger, WY | PacifiCorp East (PACE) | 169.5 GWh | Aug 2008 | Mar 2024 | Wind |
| McFadden Ridge | PacifiCorp | Rock River, WY | PacifiCorp East (PACE) | 129.9 GWh | Sep 2009 | Dec 2022 | Wind |
| Mountain Wind Power LLC | Mountain Wind Power LLC | Fort Bridger, WY | PacifiCorp East (PACE) | 129.1 GWh | Jun 2008 | Mar 2024 | Wind |
| Roundhouse Renewable Energy II | Roundhouse Renewable Energy II, LLC | Laramie County, WY | 116.4 GWh | - | Mar 2024 | Wind | |
| Silver Sage Windpower | Duke Energy Renewables Services | Cheyenne, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 113.8 GWh | Sep 2009 | Mar 2024 | Wind |
| Simplot Phosphates | Simplot Phosphates LLC | Rock Springs, WY | PacifiCorp East (PACE) | 99.9 GWh | Jul 1986 | Mar 2024 | Other Fuel : 92.1% Natural Gas : 7.9% |
| Alcova | U S Bureau of Reclamation | Alcova, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 93.9 GWh | Jun 1955 | Dec 2022 | Water |
| Kortes | U S Bureau of Reclamation | Sinclair, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 92.2 GWh | May 1950 | Dec 2022 | Water |
| Glendo | U S Bureau of Reclamation | Glendo, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 66.6 GWh | Nov 1958 | Dec 2022 | Water |
| Buffalo Bill | U S Bureau of Reclamation | Cody, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 64.3 GWh | Aug 1992 | Dec 2022 | Water |
| Boysen | U S Bureau of Reclamation | Thermopolis, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 64.2 GWh | Jul 1952 | Dec 2022 | Water |
| Seminoe | U S Bureau of Reclamation | Sinclair, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 60.7 GWh | Jul 1939 | Dec 2022 | Water |
| Happy Jack Windpower Project | Duke Energy Renewables Services | Cheyenne, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 59.7 GWh | Jul 2008 | Mar 2024 | Wind |
| Fontenelle | U S Bureau of Reclamation | Le Barge, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 46.2 GWh | Apr 1968 | Dec 2022 | Water |
| Big Sand Draw Plant | Denbury Inc | Riverton, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 36.9 GWh | Feb 2015 | Mar 2024 | Natural Gas |
| Neil Simpson Gas Turbine #2 | Black Hills Power, Inc. | Gillette, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 23.2 GWh | Mar 2001 | Dec 2022 | Natural Gas |
| Beaver Creek Gas Plant | Denbury Inc | Riverton, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 19.7 GWh | Nov 1983 | Dec 2022 | Natural Gas |
| Shoshone (WY) | U S Bureau of Reclamation | Cody, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 19.5 GWh | Mar 1922 | Dec 2022 | Water |
| Medicine Bow | SRIV Partnership LLC | Medicine Bow, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 18.2 GWh | Mar 1998 | Dec 2022 | Wind |
| Spirit Mountain | U S Bureau of Reclamation | Cody, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 16.8 GWh | Sep 1994 | Dec 2022 | Water |
| Heart Mountain | U S Bureau of Reclamation | Cody, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 16.6 GWh | Nov 1948 | Dec 2022 | Water |
| Casper Wind Farm | Chevron USA | Evansville, WY | PacifiCorp East (PACE) | 16.1 GWh | Nov 2009 | Dec 2022 | Wind |
| Guernsey | U S Bureau of Reclamation | Guernsey, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 14.5 GWh | Jun 1927 | Dec 2022 | Water |
| Garland Canal Power Plant | Shoshone Irrigation District | Powell, WY | PacifiCorp East (PACE) | 10.0 GWh | Aug 1983 | Oct 2023 | Water |
| Elk Basin Gasoline Plant | Contango Oil and Gas | Powell, WY | PacifiCorp East (PACE) | 8.4 GWh | Dec 1947 | Dec 2022 | Other Gas |
| Strawberry Creek | Lower Valley Energy Inc | Bedford, WY | Bonneville Power Administration (BPAT) | 8.1 GWh | Jul 1940 | Dec 2022 | Water |
| Swift Creek | Lower Valley Energy Inc | Afton, WY | Bonneville Power Administration (BPAT) | 6.6 GWh | Mar 2009 | Dec 2022 | Water |
| Sinclair Oil Refinery | HF Sinclair Parco Refining LLC | Sinclair, WY | PacifiCorp East (PACE) | 1.5 GWh | Dec 1924 | Mar 2024 | Natural Gas : 99.6% |
| Barber Creek | Basin Electric Power Coop | Gillette, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 499.2 MWh | Aug 2002 | Dec 2022 | Natural Gas |
| Hartzog | Basin Electric Power Coop | Wright, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 481.4 MWh | Jul 2002 | Dec 2022 | Natural Gas |
| Arvada | Basin Electric Power Coop | Arvada, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 396.9 MWh | Aug 2002 | Dec 2022 | Natural Gas |
| Old Faithful | NorthWestern Energy (MT wind/thermal) | Yellowstone, WY | NorthWestern Corporation (NWMT) | 343.7 MWh | Nov 1979 | Dec 2022 | Distillate Fuel Oil |
| Lake (WY) | NorthWestern Energy (MT wind/thermal) | Yellowstone, WY | NorthWestern Corporation (NWMT) | 245.7 MWh | Aug 1967 | Dec 2022 | Distillate Fuel Oil |
Browse Power Plants By Wyoming Counties
Figures are based on March 2024 generation numbers.| County | State Rank | Active Plants | Mar 2024 Generation |
|---|---|---|---|
| Platte County, WY | # 1 | 3 | 9.6 TWh |
| Sweetwater County, WY | # 2 | 6 | 9.5 TWh |
| Campbell County, WY | # 3 | 11 | 8.2 TWh |
| Converse County, WY | # 4 | 9 | 7.7 TWh |
| Lincoln County, WY | # 5 | 5 | 4.2 TWh |
| Carbon County, WY | # 6 | 17 | 3.7 TWh |
| Laramie County, WY | # 7 | 6 | 1.9 TWh |
| County | State Rank | Active Plants | Mar 2024 Generation |
|---|---|---|---|
| Uinta County, WY | # 8 | 4 | 689.2 GWh |
| Albany County, WY | # 9 | 8 | 560.1 GWh |
| Natrona County, WY | # 10 | 3 | 323.4 GWh |
| Park County, WY | # 11 | 6 | 135.6 GWh |
| Fremont County, WY | # 12 | 4 | 120.7 GWh |
| Teton County, WY | # 13 | 2 | 589.3 MWh |
| Sheridan County, WY | # 14 | 1 | 396.9 MWh |