Directory of Power Plants in Arizona
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Sulphur Springs | MN8 Energy LLC | Cochise, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 51.5 GWh | Nov 2016 | Dec 2024 | Solar |
| University of Arizona - Biosphere 2 | University of Arizona - Biosphere 2 | Oracle, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 53.0 MWh | Oct 1990 | Dec 2024 | Natural Gas : 67.8% Distillate Fuel Oil : 32.2% |
| Hoover Dam (AZ) | U S Bureau of Reclamation | Boulder City, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 898.4 GWh | Aug 1936 | Sep 2025 | Water |
| Mohave Electric at Fort Mohave | Mohave Electric Cooperative, Inc. | Fort Mohave, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 9.2 GWh | Mar 2015 | Dec 2024 | Solar |
| Headgate Rock | Colorado River Indian Irr Proj | Parker, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 35.7 GWh | Feb 1993 | Dec 2024 | Water |
| Mohave Energy - Hybrid | Mohave Energy | Fort Mohave, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 44.8 GWh | Aug 2023 | Sep 2025 | Solar |
| Mohave County Wind Farm | Mohave County Wind Farm | Willow Beach, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 996.0 GWh | Nov 2020 | Sep 2025 | Wind |
| South Point Energy Center | South Point Energy Center LLC | Mohave Valley, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.0 TWh | Feb 2001 | Sep 2025 | Natural Gas |
| Apache Station | Arizona Electric Pwr Coop Inc | Cochise, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.4 TWh | Jan 1963 | Sep 2025 | Natural Gas : 80.0% Subbituminous Coal : 20.0% |
| Glen Canyon Dam | U S Bureau of Reclamation | Page, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.8 TWh | Aug 1964 | Sep 2025 | Water |
| Davis Dam | U S Bureau of Reclamation | Kingman, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 958.2 GWh | Dec 1950 | Dec 2024 | Water |
| OE_AZ1 | Onward Energy | Salome, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 83.2 GWh | Nov 2019 | Sep 2025 | Solar |
| Kayenta Solar Project | NGI-Kayenta Solar Lessor I, LLC | Kayenta, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 117.2 GWh | Apr 2017 | Sep 2025 | Solar |
| Mohave Electric Cooperative at Joy Lane | Mohave Electric Cooperative, Inc. | Fort Mohave, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 12.4 GWh | Sep 2016 | Dec 2024 | Solar |
| Sundance | Arizona Public Service Co | Casa Grande, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 354.8 GWh | Apr 2002 | Sep 2025 | Natural Gas |
| Apache Solar I | Arizona Electric Pwr Coop Inc | Cochise, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 55.5 GWh | Sep 2017 | Dec 2024 | Solar |
| SR McNeal | SR McNeal, LLC | McNeal, AZ | Tucson Electric Power (TEPC) | 53.7 GWh | Nov 2023 | Sep 2025 | Solar |
| Cogenra - TEP | Terraform Arcadia | Tucson, AZ | Tucson Electric Power (TEPC) | 1.9 GWh | Jun 2014 | Dec 2024 | Solar |
| Red Horse 2 | Red Horse 2 | Willcox, AZ | Tucson Electric Power (TEPC) | 147.6 GWh | Jul 2015 | Sep 2025 | Solar : 68.9% Wind : 31.1% |
| Gato Montes Solar, LLC | Duke Energy Renewables Services | Tucson, AZ | Tucson Electric Power (TEPC) | 7.4 GWh | Nov 2012 | Dec 2024 | Solar |
| Fort Huachuca Solar PV Project | Tucson Electric Power Co | Sierra Vista, AZ | Tucson Electric Power (TEPC) | 40.1 GWh | Nov 2014 | Dec 2024 | Solar |
| UASTP I | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 1.6 GWh | Nov 2010 | Dec 2024 | Solar |
| Pima Community College | Tesla Inc. | Tucson, AZ | Tucson Electric Power (TEPC) | 2.1 GWh | Jul 2019 | May 2024 | Solar |
| Actus Lend Lease DMAFB | Tesla Inc. | Tucson, AZ | Tucson Electric Power (TEPC) | 2.5 GWh | Nov 2009 | Dec 2024 | Solar |
| Avalon Solar | Arevon Energy, Inc. | Pima, AZ | Tucson Electric Power (TEPC) | 64.6 GWh | Nov 2014 | Dec 2024 | Solar |
| Cogeneration 2 | University of Arizona | Tucson, AZ | Tucson Electric Power (TEPC) | 40.9 GWh | Oct 2002 | Sep 2025 | Natural Gas |
| Roger Road WWTP | SunE M5C Holdings LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 1.1 GWh | Jul 2010 | Oct 2024 | Solar |
| La Senita | UNS Electric, Inc | Kingman, AZ | Tucson Electric Power (TEPC) | 593.0 MWh | Oct 2011 | Dec 2024 | Solar |
| Broadway 3 - Tucson Phase I | MN8 Energy LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 1.6 GWh | Feb 2011 | Dec 2024 | Solar |
| Avra Valley Solar | Solar Avra Valley LLC | Marana, AZ | Tucson Electric Power (TEPC) | 62.5 GWh | Dec 2012 | Dec 2024 | Solar |
| Pima Community College NW | Onyx Asset Services Group | Tucson, AZ | Tucson Electric Power (TEPC) | 3.0 GWh | Mar 2019 | Dec 2024 | Solar |
| Picture Rocks Solar, LLC | MN8 Energy LLC | Marana, AZ | Tucson Electric Power (TEPC) | 49.8 GWh | Nov 2012 | Dec 2024 | Solar |
| Amazon TUS2 | SkyHigh 2 Solar | Tucson, AZ | Tucson Electric Power (TEPC) | 5.5 GWh | May 2022 | Dec 2024 | Solar |
| FRB Solar Farm | FRB Solar LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 4.1 GWh | Mar 2011 | Dec 2023 | Solar |
| Wilmot Energy Center LLC | Wilmot Energy Center LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 272.4 GWh | Mar 2021 | Sep 2025 | Solar |
| Raptor Ridge | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 33.8 GWh | May 2022 | Dec 2024 | Solar |
| Broadway 2 - Tucson Phase II | MN8 Energy LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 2.0 GWh | Nov 2013 | Dec 2024 | Solar |
| Prairie Fire | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 7.8 GWh | Nov 2012 | Dec 2024 | Solar |
| Cogeneration 1 | University of Arizona | Tucson, AZ | Tucson Electric Power (TEPC) | 47.8 GWh | Oct 2002 | Sep 2025 | Natural Gas |
| Pima Community College - East Campus | Tesla Inc. | Tucson, AZ | Tucson Electric Power (TEPC) | 2.8 GWh | Jul 2017 | Dec 2024 | Solar |
| Iron Horse Battery Storage Hybrid | Big Sky Wind, LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 4.7 GWh | Mar 2017 | Dec 2024 | Solar |
| Demoss Petrie | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 2.5 GWh | May 2001 | Dec 2024 | Natural Gas |
| H Wilson Sundt Generating Station | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 1.8 TWh | Nov 1958 | Sep 2025 | Natural Gas |
| Canyon Del Oro High School Solar | Luminace Solar Arizona 2, LLC | Oro Valley, AZ | Tucson Electric Power (TEPC) | 2.4 GWh | Oct 2016 | Dec 2024 | Solar |
| Amphitheater High School Solar | Luminace Solar Arizona 2, LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 1.8 GWh | Nov 2016 | Dec 2024 | Solar |
| Jacobson 5 MW Solar | UNS Electric, Inc | Kingman, AZ | Tucson Electric Power (TEPC) | 9.6 GWh | Feb 2017 | Dec 2024 | Solar |
| Red Horse III | Red Horse III | Wilcox, AZ | Tucson Electric Power (TEPC) | 52.2 GWh | Jun 2016 | Dec 2024 | Solar |
| North Loop | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 2.5 GWh | Nov 1972 | Dec 2024 | Natural Gas |
| Gray Hawk Solar | Gray Hawk Solar, LLC | Kingman, AZ | Tucson Electric Power (TEPC) | 137.6 GWh | May 2018 | Sep 2025 | Solar |
| Valencia | UNS Electric, Inc | Nogales, AZ | Tucson Electric Power (TEPC) | 4.8 GWh | Jul 1989 | Dec 2024 | Natural Gas : 96.3% Distillate Fuel Oil : 3.7% |
| Springerville | Tucson Electric Power Co | Springerville, AZ | Tucson Electric Power (TEPC) | 5.2 TWh | May 1985 | Sep 2025 | Subbituminous Coal : 99.0% Distillate Fuel Oil : 0.5% |
| Avalon Solar II | Avalon Solar Partners II, LLC | Sahuarita, AZ | Tucson Electric Power (TEPC) | 43.8 GWh | Feb 2016 | Dec 2024 | Solar |
| TJX Tucson | SoCore Energy LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 2.2 GWh | Jan 2018 | Dec 2024 | Solar |
| Gila River Power Block 3 | Salt River Project | Gila Bend, AZ | Tucson Electric Power (TEPC) | 3.1 TWh | May 2003 | Sep 2025 | Natural Gas |
| Black Mountain Generating Station | UNS Electric, Inc | Golden Valley, AZ | Tucson Electric Power (TEPC) | 86.4 GWh | Apr 2008 | Dec 2024 | Natural Gas |
| Davis Monthan AFB (AZ) West Airfield | MN8 Energy LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 30.2 GWh | Dec 2013 | Dec 2024 | Solar |
| Tech Park Solar | Big Sky Wind, LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 11.8 GWh | Nov 2012 | Dec 2024 | Solar |
| Valencia Solar | Big Sky Wind, LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 24.6 GWh | May 2013 | Dec 2024 | Solar |
| West Line Solar, LLC | West Line Solar, LLC | City of Eloy, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 260.3 GWh | Nov 2022 | Sep 2025 | Solar |
| Gila River Power Block 1 | Salt River Project | Gila Bend, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 1.8 TWh | Apr 2003 | Sep 2025 | Natural Gas |
| Central Line Solar, LLC | AES Distributed Energy | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 271.0 GWh | Mar 2022 | Sep 2025 | Solar |
| T0588 Phoenix - AZ | SoCore Energy LLC | Phoenix, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.1 GWh | Apr 2017 | Dec 2024 | Solar |
| Gila River Power Block 2 | Salt River Project | Gila Bend, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 3.0 TWh | May 2003 | Sep 2025 | Natural Gas |
| Pinal Central Energy Center Hybrid | Pinal Central Energy Center, LLC | Casa Grande, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 55.4 GWh | Mar 2018 | Sep 2025 | Solar |
| Mesa Carport PV | Apple, Inc | Mesa, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 7.5 GWh | Feb 2020 | Sep 2024 | Solar |
| Copper Crossing Energy and Research Cent | Salt River Project | Florence, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 5.1 GWh | May 2024 | Dec 2024 | Natural Gas |
| Sandstone Solar | AES Distributed Energy | Florence, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 117.2 GWh | Nov 2015 | Dec 2024 | Solar |
| Saint Solar | Saint Solar LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 286.9 GWh | Dec 2020 | Sep 2025 | Solar |
| Bonnybrooke PV | Apple, Inc | Florence, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 121.2 GWh | Oct 2016 | Dec 2024 | Solar |
| East Line Solar | AES Distributed Energy | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 252.9 GWh | Nov 2020 | Sep 2025 | Solar |
| Mesquite Generating Station Block 1 | Salt River Project | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 3.6 TWh | May 2003 | Sep 2025 | Natural Gas |
| Storey Solar and Storage | Storey Energy Center, LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 298.7 GWh | Aug 2023 | Sep 2025 | Solar |
| Gila River Power Block 4 | Salt River Project | Gila Bend, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.9 TWh | Apr 2003 | Sep 2025 | Natural Gas |
| Red Hawk | Arizona Public Service Co | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 4.8 TWh | Jun 2002 | Sep 2025 | Natural Gas |
| Mesquite Generating Station Block 2 | Mesquite Power LLC | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 4.1 TWh | Nov 2003 | Sep 2025 | Natural Gas |
| Brittlebush Solar | Randolph Solar Park LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 522.6 GWh | Oct 2024 | Sep 2025 | Solar |
| Desert Basin | Salt River Project | Casa Grande, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.0 TWh | Sep 2001 | Sep 2025 | Natural Gas |
| Coolidge Generation Station | Salt River Project | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 54.5 GWh | Apr 2011 | Sep 2025 | Natural Gas |
| Dry Lake Wind LLC | Avangrid Power LLC | Heber, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 110.3 GWh | Jul 2009 | Sep 2025 | Wind |
| Poseidon Solar, LLC | Axium Arizona Renewables, LLC | Globe, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 50.2 GWh | Nov 2011 | Dec 2024 | Solar |
| Santan | Salt River Project | Gilbert, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 5.8 TWh | Sep 1974 | Sep 2025 | Natural Gas |
| Coronado | Salt River Project | St Johns, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.6 TWh | Nov 1979 | Sep 2025 | Subbituminous Coal : 99.7% |
| Palo Verde | Arizona Public Service Co | Wintersburg, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 32.0 TWh | Dec 1985 | Sep 2025 | Nuclear |
| Stewart Mountain | Salt River Project | Phoenix, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 45.7 GWh | Feb 1930 | Dec 2024 | Water |
| Mormon Flat | Salt River Project | Apache Junction, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 48.0 GWh | Apr 1926 | Sep 2025 | Water |
| TJX Phoenix | SoCore Energy LLC | Phoenix, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 5.0 GWh | Dec 2017 | Dec 2024 | Solar |
| Queen Creek Solar Farm | Siete Solar LLC | Queen Creek, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 40.7 GWh | Sep 2012 | Dec 2024 | Solar |
| Babbitt Ranch Energy Center | Babbitt Ranch Energy Center, LLC | Flagstaff, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 560.1 GWh | Jun 2024 | Sep 2025 | Wind |
| Agua Fria | Salt River Project | Glendale, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 243.5 GWh | Mar 1957 | Sep 2025 | Natural Gas |
| Eleven Mile Solar Center | Eleven Mile Solar Center, LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 800.0 GWh | May 2024 | Sep 2025 | Solar |
| Sonoran Solar Energy | Sonoran Solar Energy, LLC | Buckeye, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 1.1 TWh | Jun 2023 | Sep 2025 | Solar |
| Horse Mesa | Salt River Project | Apache Junction, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 96.4 GWh | Mar 1927 | Sep 2025 | Water |
| Kyrene | Salt River Project | Tempe, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 910.1 GWh | Jun 1952 | Sep 2025 | Natural Gas |
| Roosevelt | Salt River Project | Roosevelt, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 101.8 GWh | Feb 1973 | Dec 2024 | Water |
| Harquahala Generating Project | New Harquahala Generating Co, LLC | Tonopah, AZ | New Harquahala Generating Company, LLC (HGMA) | 3.5 TWh | May 2004 | Sep 2025 | Natural Gas |
| Griffith Energy LLC | Griffith Energy LLC | Golden Valley, AZ | Griffith Energy, LLC (GRIF) | 3.7 TWh | Dec 2001 | Sep 2025 | Natural Gas |
| White Wing Solar | Leeward Asset Management, LLC | Yuma, AZ | California Independent System Operator (CISO) | 467.0 GWh | Sep 2024 | Sep 2025 | Solar |
| Mesquite Solar 2, LLC | Consolidated Edison Development Inc. | Tonopah, AZ | California Independent System Operator (CISO) | 288.9 GWh | Nov 2016 | Sep 2025 | Solar |
| Mesquite Solar 3, LLC | Consolidated Edison Development Inc. | Tonopah, AZ | California Independent System Operator (CISO) | 448.5 GWh | Nov 2016 | Sep 2025 | Solar |
| Sun Streams, LLC | EDP Renewables North America LLC | Arlington, AZ | California Independent System Operator (CISO) | 405.6 GWh | Dec 2019 | Sep 2025 | Solar |
Browse Power Plants By Arizona Counties
Figures are based on September 2025 generation numbers.| County | State Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Santa Cruz County, AZ | # 13 | 2 | 4.8 GWh |
| Gila County, AZ | # 12 | 2 | 50.2 GWh |
| Yavapai County, AZ | # 11 | 7 | 97.8 GWh |
| La Paz County, AZ | # 10 | 13 | 118.9 GWh |
| Navajo County, AZ | # 9 | 8 | 1.8 TWh |
| Yuma County, AZ | # 8 | 17 | 2.5 TWh |
| Cochise County, AZ | # 7 | 11 | 2.8 TWh |
| County | State Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Pima County, AZ | # 6 | 39 | 2.8 TWh |
| Coconino County, AZ | # 5 | 12 | 4.7 TWh |
| Pinal County, AZ | # 4 | 26 | 5.8 TWh |
| Apache County, AZ | # 3 | 4 | 7.8 TWh |
| Mohave County, AZ | # 2 | 16 | 9.0 TWh |
| Maricopa County, AZ | # 1 | 88 | 81.0 TWh |