| Hornshadow Solar II, LLC | Hornshadow Solar II, LLC | Castle Dale, UT | 146 GWh | - | Sep 2025 |
Solar
|
| Hornshadow Solar, LLC | Hornshadow Solar, LLC | Castle Dale, UT | 107 GWh | - | Sep 2025 |
Solar
|
| Granite | PacifiCorp | Salt lake City, UT | 5 GWh | Jul 1896 | Dec 2024 |
Water
|
| Upper Beaver | Beaver City Corporation | Beaver, UT | 10 GWh | Jul 1907 | Dec 2024 |
Water
|
| Pioneer | PacifiCorp | Ogden, UT | 18 GWh | May 1910 | Dec 2024 |
Water
|
| Snake Creek | Heber Light & Power Company | Midway, UT | 6 GWh | Jun 1910 | Dec 2024 |
Water
|
| Big Fork | PacifiCorp | Big Fork, MT | 21 GWh | Jun 1910 | Dec 2024 |
Water
|
| Stairs | PacifiCorp | Salt Lake City, UT | 3 GWh | Jun 1912 | Dec 2024 |
Water
|
| Oneida | PacifiCorp | Riverdale, ID | 42 GWh | Jun 1915 | Dec 2024 |
Water
|
| Ashton | PacifiCorp | Ashton, ID | 33 GWh | Jun 1917 | Dec 2024 |
Water
|
| Brigham City | Brigham City Corporation | Brigham, UT | 8 GWh | Dec 1920 | Dec 2024 |
Water
|
| Grace | PacifiCorp | Grace, ID | 88 GWh | Jun 1923 | Dec 2024 |
Water
|
| Soda | PacifiCorp | Soda Springs, ID | 19 GWh | Jun 1924 | Dec 2024 |
Water
|
| Sinclair Oil Refinery | HF Sinclair Parco Refining LLC | Sinclair, WY | 7 GWh | Dec 1924 | Jun 2025 |
Natural Gas
|
| Cutler Hydro | PacifiCorp | Collinston, UT | 87 GWh | Jun 1927 | Dec 2024 |
Water
|
| Spanish Fork | Strawberry Water Users Assn | Spanish Fork, UT | 14 GWh | Sep 1937 | Dec 2024 |
Water
|
| Manti Upper | City of Manti - (UT) | Manti, UT | 464 MWh | Dec 1938 | Apr 2024 |
Water
|
| Lower No 2 | City of Idaho Falls - (ID) | Idaho Falls, ID | 5 GWh | Jul 1940 | Oct 2024 |
Water
|
| Kennecott Power Plant | Kennecott Utah Copper | Magna, UT | 160 GWh | Dec 1942 | Sep 2025 |
Waste Heat : 76.4%
Natural Gas : 23.6%
|
| Felt | Fall River Rural Elec Coop Inc | Felt, ID | 28 GWh | Aug 1946 | Dec 2024 |
Water
|
| Elk Basin Gasoline Plant | Contango Oil and Gas | Powell, WY | 7 GWh | Dec 1947 | Dec 2024 |
Other Gas
|
| Gadsby | PacifiCorp | Salt Lake City, UT | 281 GWh | Aug 1951 | Sep 2025 |
Natural Gas
|
| Genesis Alkali | Genesis Alkali, LLC | Green River, WY | 259 GWh | May 1953 | Dec 2024 |
Subbituminous Coal : 68.7%
Natural Gas : 31.3%
|
| Gateway | Weber Basin Water Conserv Dist | Mountain Green, UT | 15 GWh | Jul 1958 | Dec 2024 |
Water
|
| Wanship | Weber Basin Water Conserv Dist | Wanship, UT | 9 GWh | Jul 1958 | Dec 2024 |
Water
|
| Dave Johnston | PacifiCorp | Glen Rock, WY | 5 TWh | Jan 1959 | Sep 2025 |
Subbituminous Coal : 99.9%
|
| Naughton | PacifiCorp | Kemmerer, WY | 2 TWh | Apr 1963 | Sep 2025 |
Subbituminous Coal : 66.9%
Natural Gas : 33.1%
|
| General Chemical | Tata Chemicals Partners | Green River, WY | 201 GWh | Apr 1968 | Sep 2025 |
Bituminous Coal : 75.6%
Natural Gas : 24.4%
|
| US Magnesium | US Magnesium | Rowley, UT | 82 MWh | Dec 1971 | Sep 2024 |
Natural Gas
|
| Huntington | PacifiCorp | Huntington, UT | 4 TWh | Jun 1974 | Sep 2025 |
Bituminous Coal : 99.9%
|
| Jim Bridger | PacifiCorp | Point of Rocks, WY | 8 TWh | Oct 1974 | Sep 2025 |
Subbituminous Coal : 60.6%
Natural Gas : 39.3%
|
| Hunter | PacifiCorp | Castle Dale, UT | 7 TWh | May 1978 | Sep 2025 |
Bituminous Coal : 99.8%
|
| Wyodak | PacifiCorp | Gillette, WY | 2 TWh | Aug 1978 | Sep 2025 |
Subbituminous Coal : 99.9%
|
| Lake Creek Dam | Heber Light & Power Company | Heber City, UT | 3 GWh | Apr 1981 | Dec 2024 |
Water
|
| Lower No 1 | City of Idaho Falls - (ID) | Idaho Falls, ID | 39 GWh | Mar 1982 | Dec 2024 |
Water
|
| City Power Plant | City of Idaho Falls - (ID) | Idaho Falls, ID | 40 GWh | Jun 1982 | Dec 2024 |
Water
|
| Upper Power Plant | City of Idaho Falls - (ID) | Idaho Falls, ID | 45 GWh | Aug 1982 | Dec 2024 |
Water
|
| Little Cottonwood | City of Murray - (UT) | Sandy, UT | 10 GWh | Mar 1983 | Oct 2024 |
Water
|
| Garland Canal Power Plant | Shoshone Irrigation District | Powell, WY | 9 GWh | Aug 1983 | Sep 2025 |
Water
|
| Last Chance | PacifiCorp | Grace, ID | 4 GWh | Jan 1984 | Dec 2024 |
Water
|
| Blundell | PacifiCorp | Milford, UT | 272 GWh | Jun 1984 | Dec 2024 |
Geothermal
|
| Hydro Plant No 3 | City of Ephraim - (UT) | east of Ephraim, UT | 5 GWh | Aug 1984 | Dec 2024 |
Water
|
| Quail Creek Hydro Plant #1 | Washington Cnty Wtr Consv Dist | Hurricane, UT | 9 GWh | May 1985 | Sep 2025 |
Water
|
| Hydro II | City of Logan - (UT) | Logan, UT | 19 GWh | Feb 1986 | Dec 2024 |
Water
|
| Birch Creek Power | Birch Power Co | Terreton, ID | 13 GWh | Mar 1986 | Dec 2024 |
Water
|
| Bonanza | Deseret Generation & Tran Coop | Vernal, UT | 2 TWh | Apr 1986 | Sep 2025 |
Bituminous Coal : 98.8%
Solar : 1.1%
|
| Whitehead | City of Springville - (UT) | Springville, UT | 11 GWh | Jul 1986 | Dec 2024 |
Natural Gas : 99.2%
Distillate Fuel Oil : 0.8%
|
| Simplot Phosphates | Simplot Phosphates LLC | Rock Springs, WY | 100 GWh | Jul 1986 | Sep 2025 |
Other Fuel : 89.6%
Natural Gas : 10.4%
|
| Bountiful City | City of Bountiful | Bountiful, UT | 28 GWh | Sep 1986 | Dec 2024 |
Natural Gas
|
| Snowbird Power Plant | Snowbird Corporation | Snowbird, UT | 15 GWh | Nov 1986 | Dec 2024 |
Natural Gas
|
| Mink Creek Hydro | Mink Creek Hydro Entity | Preston, ID | 11 GWh | Nov 1986 | Dec 2024 |
Water
|
| Echo Dam | City of Bountiful | Echo, UT | 13 GWh | Feb 1987 | Oct 2024 |
Water
|
| St George Red Rock | City of St George | St George, UT | 178 MWh | Apr 1987 | Dec 2024 |
Distillate Fuel Oil
|
| Dry Creek Project | Dry Creek LLC | Howe, ID | 10 GWh | Nov 1987 | Dec 2024 |
Water
|
| Bartholomew | City of Springville - (UT) | Springville, UT | 271 MWh | Mar 1988 | Dec 2024 |
Water
|
| Payson | Payson City Corporation | Payson, UT | 4 MWh | May 1988 | Dec 2024 |
Natural Gas : 95.9%
Distillate Fuel Oil : 4.1%
|
| Gem State | City of Idaho Falls - (ID) | Idaho Falls, ID | 109 GWh | Oct 1988 | Dec 2024 |
Water
|
| Manti Lower | City of Manti - (UT) | Manti, UT | 802 MWh | Dec 1988 | Dec 2024 |
Water
|
| Heber City | Heber Light & Power Company | Heber City, UT | 28 GWh | Nov 1990 | Dec 2024 |
Natural Gas
|
| Pine View Dam | City of Bountiful | Ogden, UT | 6 GWh | May 1991 | Oct 2024 |
Water
|
| Sunnyside Cogen Associates | Sunnyside Cogeneration Assoc | Sunnyside, UT | 324 GWh | Jan 1993 | Aug 2025 |
Waste/Other Coal : 99.3%
Distillate Fuel Oil : 0.7%
|
| Marsh Valley Development | Marsh Valley Development Inc | McCammon, ID | 7 GWh | Mar 1993 | Apr 2024 |
Water
|
| Unit 4 | City of Mt Pleasant - (UT) | Mt Pleasent, UT | 2 GWh | May 1993 | Oct 2024 |
Water
|
| Causey | Weber Basin Water Conserv Dist | South Fork, UT | 5 GWh | Dec 1997 | Dec 2024 |
Water
|
| Bloomington Power Plant | City of St George | Bloomington, UT | 11 MWh | Feb 1999 | Dec 2024 |
Distillate Fuel Oil
|
| Foote Creek I | PacifiCorp | McFadden, WY | 216 GWh | Mar 1999 | Dec 2023 |
Wind
|
| Foote Creek III | PacifiCorp | McFadden, WY | 15 GWh | May 1999 | Dec 2023 |
Wind
|
| Hurricane City Power | Hurricane City Power | Hurricane, UT | 7 GWh | Nov 1999 | Dec 2024 |
Natural Gas : 99.2%
Distillate Fuel Oil : 0.8%
|
| Foote Creek IV | PacifiCorp | Rock River, WY | 12 GWh | Jul 2000 | Dec 2023 |
Wind
|
| Murray Turbine | City of Murray - (UT) | Murray, UT | 37 GWh | May 2001 | Dec 2024 |
Natural Gas
|
| West Valley Generation Project | Utah Municipal Power Agency | West Valley City, UT | 452 GWh | Sep 2001 | Sep 2025 |
Natural Gas
|
| Logan City | City of Logan - (UT) | Logan, UT | 5 GWh | Jun 2002 | Dec 2024 |
Natural Gas
|
| TransAlta Wyoming Wind | TransAlta Wyoming Wind LLC | Evanston, WY | 319 GWh | Nov 2003 | Dec 2024 |
Wind
|
| Nebo Power Station | Utah Associated Mun Power Sys | Payson, UT | 875 GWh | May 2004 | Sep 2025 |
Natural Gas
|
| Tesoro SLC Cogeneration Plant | Tesoro Refng Marketing Co Mntn Region | Salt Lake City, UT | 200 GWh | Jun 2004 | Sep 2025 |
Natural Gas : 98.9%
Other Gas : 1.1%
|
| Central Energy Plant USU | Utah State University | Logan, UT | 21 GWh | Jul 2004 | Sep 2025 |
Natural Gas
|
| Hill AFB LFG Facility, Bldg #737 | Ameresco Federal Solutions | Hill AFB, UT | 8 GWh | Dec 2004 | Dec 2024 |
Landfill Gas
|
| Shute Creek Facility | Exxon Mobil Production Co | Kemmerer, WY | 824 GWh | Apr 2005 | Sep 2025 |
Natural Gas : 58.3%
Other Gas : 41.7%
|
| Currant Creek | PacifiCorp | Mona, UT | 3 TWh | May 2005 | Sep 2025 |
Natural Gas
|
| Wolverine Creek | Invenergy Services LLC | Idaho Falls, ID | 164 GWh | Jan 2006 | Dec 2024 |
Wind
|
| Millcreek Power Generation | City of St George | St. George, UT | 149 GWh | Mar 2006 | Nov 2024 |
Natural Gas
|
| Salt Lake Energy Systems | NextEra Renewable Fuels, LLC | Salt Lake City, UT | 24 GWh | May 2006 | Dec 2024 |
Landfill Gas
|
| Washington City Electric Generation | City of Washington - (UT) | Washington, UT | 6 GWh | Apr 2007 | Dec 2024 |
Natural Gas
|
| Lake Side Power Plant | PacifiCorp | Vineyard, UT | 6 TWh | Aug 2007 | Sep 2025 |
Natural Gas
|
| Spanish Fork Wind Park 2 LLC | Spanish Fork Wind Park 2, LLC | Spanish Fork, UT | 47 GWh | Jun 2008 | Sep 2025 |
Wind
|
| Mountain Wind Power LLC | Mountain Wind Power LLC | Fort Bridger, WY | 131 GWh | Jun 2008 | Sep 2025 |
Wind
|
| Jordanelle Dam Hydroelectric Project | Central Utah Water Conservancy District | Heber, UT | 51 GWh | Jun 2008 | Dec 2024 |
Water
|
| HTW Plant 303 COGEN | The University of Utah | Salt Lake City, UT | 47 GWh | Jul 2008 | Sep 2025 |
Natural Gas
|
| Mountain Wind Power II LLC | Mountain Wind Power II LLC | Fort Bridger, WY | 160 GWh | Aug 2008 | Sep 2025 |
Wind
|
| Glenrock | PacifiCorp | Glenrock, WY | 401 GWh | Nov 2008 | Dec 2024 |
Wind
|
| Seven Mile Hill | PacifiCorp | Medicine Bow, WY | 400 GWh | Nov 2008 | Dec 2024 |
Wind
|
| Rolling Hills | PacifiCorp | Glenrock, WY | 245 GWh | Dec 2008 | Dec 2024 |
Wind
|
| Trans-Jordan Generating Station | Energy Developments, Inc d/b/a EDL | South Jordan, UT | 37 GWh | Feb 2009 | Dec 2024 |
Landfill Gas
|
| High Plains | PacifiCorp | Rock River, WY | 274 GWh | Aug 2009 | Dec 2024 |
Wind
|
| McFadden Ridge | PacifiCorp | Rock River, WY | 84 GWh | Sep 2009 | Dec 2024 |
Wind
|
| Campbell Hill Windpower | Duke Energy Renewables Services | Glenrock, WY | 263 GWh | Nov 2009 | Sep 2025 |
Wind
|
| Casper Wind Farm | Chevron USA | Evansville, WY | 6 GWh | Nov 2009 | Dec 2023 |
Wind
|
| Goshen Phase II | AE Power Services LLC | Idaho Falls, ID | 369 GWh | Aug 2010 | Dec 2024 |
Wind
|
| Dunlap | PacifiCorp | Medicine Bow, WY | 366 GWh | Sep 2010 | Dec 2024 |
Wind
|
| Top of the World Windpower Project | Duke Energy Renewables Services | Glenrock, WY | 461 GWh | Sep 2010 | Sep 2025 |
Wind
|
