Directory of Power Plants in Arizona
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Perrin Ranch Wind LLC | Perrin Ranch Wind LLC | Williams, AZ | Arizona Public Service Company (AZPS) | 173.2 GWh | Dec 2011 | Jun 2026 | Wind |
| Poseidon Solar, LLC | Axium Arizona Renewables, LLC | Globe, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 48.8 GWh | Nov 2011 | Dec 2025 | Solar |
| RE Bagdad Solar I LLC | Deriva Energy | Bagdad, AZ | Arizona Public Service Company (AZPS) | 30.1 GWh | Nov 2011 | Dec 2025 | Solar |
| Buckeye Union HS District 201 | Luminace Solar Arizona, LLC | Buckeye, AZ | Arizona Public Service Company (AZPS) | 6.8 GWh | Nov 2011 | Dec 2025 | Solar |
| Prescott Solar Plant | SunE AZ1, LLC | Prescott, AZ | Arizona Public Service Company (AZPS) | 23.0 GWh | Nov 2011 | Dec 2025 | Solar |
| La Senita | UNS Electric, Inc | Kingman, AZ | Tucson Electric Power (TEPC) | 1.7 GWh | Oct 2011 | Sep 2025 | Solar |
| Cotton Center Solar Hybrid | Arizona Public Service Co | Gila Bend, AZ | Arizona Public Service Company (AZPS) | 29.4 GWh | Oct 2011 | Dec 2025 | Solar |
| Hyder Solar Hybrid | Arizona Public Service Co | Hyder, AZ | Arizona Public Service Company (AZPS) | 31.2 GWh | Oct 2011 | Dec 2025 | Solar |
| Mesquite Solar 1 | RWE Clean Energy | Tonopah, AZ | California Independent System Operator (CISO) | 392.2 GWh | Oct 2011 | Dec 2025 | Solar |
| Arizona Western College PV | AES Distributed Energy | Yuma, AZ | Arizona Public Service Company (AZPS) | 4.5 GWh | Oct 2011 | Dec 2025 | Solar |
| Gilbert Solar Facility I, LLC | Gilbert Solar Facility I, LLC | Gilbert, AZ | Arizona Public Service Company (AZPS) | 4.0 GWh | Sep 2011 | Dec 2025 | Solar |
| Paloma Solar Hybrid | Arizona Public Service Co | Gila Bend, AZ | Arizona Public Service Company (AZPS) | 30.2 GWh | Aug 2011 | Dec 2025 | Solar |
| Kingman 1 | Kingman Energy Corp | Kingman, AZ | Arizona Public Service Company (AZPS) | 20.1 GWh | Aug 2011 | Jun 2026 | Wind : 96.0% Solar : 4.0% |
| RE Ajo 1 LLC | Deriva Energy | Ajo, AZ | Arizona Public Service Company (AZPS) | 9.0 GWh | Jul 2011 | Dec 2025 | Solar |
| Coolidge Generation Station | Salt River Project | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 59.6 GWh | Apr 2011 | Jun 2026 | Natural Gas |
| Broadway 3 - Tucson Phase I | MN8 Energy LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 1.1 GWh | Feb 2011 | Dec 2025 | Solar |
| Poseidon Wind, LLC | Axium Arizona Renewables, LLC | Herber, AZ | Arizona Public Service Company (AZPS) | 103.9 GWh | Nov 2010 | Jun 2026 | Wind |
| UASTP I | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 2.1 GWh | Nov 2010 | Dec 2025 | Solar |
| Macys Goodyear | Macys Corporate Services, Inc | Goodyear, AZ | Arizona Public Service Company (AZPS) | 3.1 GWh | Nov 2010 | Dec 2024 | Solar |
| Roger Road WWTP | SunE M5C Holdings LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 988.0 MWh | Jul 2010 | Dec 2025 | Solar |
| Actus Lend Lease DMAFB | Tesla Inc. | Tucson, AZ | Tucson Electric Power (TEPC) | 2.5 GWh | Nov 2009 | Dec 2024 | Solar |
| Dry Lake Wind LLC | Avangrid Power LLC | Heber, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 98.7 GWh | Jul 2009 | Jun 2026 | Wind |
| Novo BioPower Plant | Novo Biopower LLC | Snowflake, AZ | Arizona Public Service Company (AZPS) | 202.3 GWh | May 2008 | Dec 2025 | Wood/Wood Waste Solids |
| Black Mountain Generating Station | UNS Electric, Inc | Golden Valley, AZ | Tucson Electric Power (TEPC) | 55.2 GWh | Apr 2008 | Dec 2025 | Natural Gas |
| Arizona State University CHP | Energy Center Phoenix LLC | Tempe, AZ | Arizona Public Service Company (AZPS) | 39.4 GWh | Mar 2006 | Jun 2026 | Natural Gas |
| Harquahala Generating Project | New Harquahala Generating Co, LLC | Tonopah, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 3.1 TWh | May 2004 | Jun 2026 | Natural Gas |
| Mesquite Generating Station Block 2 | Mesquite Power LLC | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 3.8 TWh | Nov 2003 | Jun 2026 | Natural Gas |
| AZ State University - Tempe Campus Solar | Arizona State University FDM | Tempe, AZ | Arizona Public Service Company (AZPS) | 1.9 GWh | Nov 2003 | Dec 2025 | Solar |
| Mesquite Generating Station Block 1 | Salt River Project | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 3.0 TWh | May 2003 | Jun 2026 | Natural Gas |
| Gila River Power Block 3 | Salt River Project | Gila Bend, AZ | Tucson Electric Power (TEPC) | 3.1 TWh | May 2003 | Jun 2026 | Natural Gas |
| Gila River Power Block 2 | Salt River Project | Gila Bend, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.4 TWh | May 2003 | Jun 2026 | Natural Gas |
| Gila River Power Block 4 | Salt River Project | Gila Bend, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.2 TWh | Apr 2003 | Jun 2026 | Natural Gas |
| Gila River Power Block 1 | Salt River Project | Gila Bend, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.9 TWh | Apr 2003 | Jun 2026 | Natural Gas |
| Cogeneration 1 | University of Arizona | Tucson, AZ | Tucson Electric Power (TEPC) | 54.0 GWh | Oct 2002 | Jun 2026 | Natural Gas |
| Cogeneration 2 | University of Arizona | Tucson, AZ | Tucson Electric Power (TEPC) | 39.4 GWh | Oct 2002 | Jun 2026 | Natural Gas |
| Prescott Airport | Arizona Public Service Co | Prescott, AZ | Arizona Public Service Company (AZPS) | 6.1 GWh | Sep 2002 | Dec 2025 | Solar |
| Red Hawk | Arizona Public Service Co | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 5.1 TWh | Jun 2002 | Jun 2026 | Natural Gas |
| Arlington Valley Energy Facility | Arlington Valley LLC | Arlington, AZ | Arlington Valley, LLC (DEAA) | 3.2 TWh | May 2002 | Jun 2026 | Natural Gas |
| Sundance | Arizona Public Service Co | Casa Grande, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 208.7 GWh | Apr 2002 | Jun 2026 | Natural Gas |
| Griffith Energy LLC | Griffith Energy LLC | Golden Valley, AZ | Griffith Energy, LLC (GRIF) | 3.8 TWh | Dec 2001 | Jun 2026 | Natural Gas |
| Desert Basin | Salt River Project | Casa Grande, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.4 TWh | Sep 2001 | Jun 2026 | Natural Gas |
| Demoss Petrie | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 2.1 GWh | May 2001 | Dec 2025 | Natural Gas |
| South Point Energy Center | South Point Energy Center LLC | Mohave Valley, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.8 TWh | Feb 2001 | Jun 2026 | Natural Gas |
| Yuma Cogeneration Associates | Falcon Power Operating Company | Yuma, AZ | Arizona Public Service Company (AZPS) | 15.1 GWh | Feb 1994 | Jun 2026 | Natural Gas |
| Headgate Rock | Colorado River Indian Irr Proj | Parker, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 40.9 GWh | Feb 1993 | Dec 2025 | Water |
| University of Arizona - Biosphere 2 | University of Arizona - Biosphere 2 | Oracle, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 61.0 MWh | Oct 1990 | Dec 2025 | Natural Gas : 68.4% Distillate Fuel Oil : 31.6% |
| Valencia | UNS Electric, Inc | Nogales, AZ | Tucson Electric Power (TEPC) | 6.8 GWh | Jul 1989 | Dec 2025 | Natural Gas : 93.0% Distillate Fuel Oil : 7.0% |
| Palo Verde | Arizona Public Service Co | Wintersburg, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 31.2 TWh | Dec 1985 | Jun 2026 | Nuclear |
| Springerville | Tucson Electric Power Co | Springerville, AZ | Tucson Electric Power (TEPC) | 5.3 TWh | May 1985 | Jun 2026 | Subbituminous Coal : 99.3% |
| Coronado | Salt River Project | St Johns, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.6 TWh | Nov 1979 | Jun 2026 | Subbituminous Coal : 99.6% |
| Santan | Salt River Project | Gilbert, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 4.9 TWh | Sep 1974 | Jun 2026 | Natural Gas |
| Roosevelt | Salt River Project | Roosevelt, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 76.0 GWh | Feb 1973 | Dec 2025 | Water |
| North Loop | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 1.0 GWh | Nov 1972 | Dec 2025 | Natural Gas |
| Douglas | Arizona Public Service Co | Douglas, AZ | Arizona Public Service Company (AZPS) | 218.0 MWh | Apr 1972 | Dec 2025 | Distillate Fuel Oil |
| West Phoenix | Arizona Public Service Co | Phoenix, AZ | Arizona Public Service Company (AZPS) | 3.4 TWh | Apr 1972 | Jun 2026 | Natural Gas |
| Saguaro | Arizona Public Service Co | Red Rock, AZ | Arizona Public Service Company (AZPS) | 117.5 GWh | Apr 1972 | Dec 2025 | Natural Gas |
| Glen Canyon Dam | U S Bureau of Reclamation | Page, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.3 TWh | Aug 1964 | Jun 2026 | Water |
| Apache Station | Arizona Electric Pwr Coop Inc | Cochise, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.0 TWh | Jan 1963 | Jun 2026 | Natural Gas : 89.5% Subbituminous Coal : 10.5% |
| Cholla | Arizona Public Service Co | Joseph City, AZ | Arizona Public Service Company (AZPS) | 1.3 TWh | Apr 1962 | Mar 2025 | Subbituminous Coal : 99.9% |
| Ocotillo | Arizona Public Service Co | Tempe, AZ | Arizona Public Service Company (AZPS) | 370.6 GWh | Feb 1960 | Jun 2026 | Natural Gas |
| Yucca | Arizona Public Service Co | Yuma, AZ | Arizona Public Service Company (AZPS) | 168.5 GWh | Mar 1959 | Jun 2026 | Natural Gas : 98.3% Distillate Fuel Oil : 1.7% |
| H Wilson Sundt Generating Station | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 1.9 TWh | Nov 1958 | Jun 2026 | Natural Gas |
| Agua Fria | Salt River Project | Glendale, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 221.4 GWh | Mar 1957 | Jun 2026 | Natural Gas : 99.9% |
| Kyrene | Salt River Project | Tempe, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 1.3 TWh | Jun 1952 | Jun 2026 | Natural Gas |
| Davis Dam | U S Bureau of Reclamation | Kingman, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 906.0 GWh | Dec 1950 | Dec 2025 | Water |
| Hoover Dam (AZ) | U S Bureau of Reclamation | Boulder City, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 1.3 TWh | Aug 1936 | Jun 2026 | Water |
| Stewart Mountain | Salt River Project | Phoenix, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 36.6 GWh | Feb 1930 | Dec 2025 | Water |
| Horse Mesa | Salt River Project | Apache Junction, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 93.2 GWh | Mar 1927 | Jun 2026 | Water |
| Mormon Flat | Salt River Project | Apache Junction, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 44.1 GWh | Apr 1926 | Jun 2026 | Water |
| Arlington Valley Solar Energy I | RWE Clean Energy | Arlington, AZ | Arizona Public Service Company (AZPS) | 106.2 GWh | - | Jun 2026 | Solar |
| Babacomari Solar | Babacomari Solar, LLC | Huachuca, AZ | Tucson Electric Power (TEPC) | 203.8 GWh | - | Jun 2026 | Solar |
| Catclaw Solar | 311SV 8me, LLC | Buckeye, AZ | Arizona Public Service Company (AZPS) | 43.1 GWh | - | Jun 2026 | Solar |
| Centennial Flats | Copia Power | Salome, AZ | Arizona Public Service Company (AZPS) | 18.1 GWh | - | Jun 2026 | Solar |
| Sun Pond | Sun Pond, LLC | Tonopah, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 70.0 GWh | - | Jun 2026 | Solar |
| Wilmot Energy Center II | Wilmot Energy Center II, LLC | Sahuarita, AZ | Tucson Electric Power (TEPC) | 82.4 GWh | - | Jun 2026 | Solar |
| Papago PV | RE Papago PV LLC | Tonopah, AZ | Arizona Public Service Company (AZPS) | 123.5 GWh | - | Jun 2026 | Solar |
| West Camp Wind Farm | AES Clean Energy | Heber, AZ | Arizona Public Service Company (AZPS) | 292.2 GWh | - | Jun 2026 | Wind |
Browse Power Plants By Arizona Counties
Figures are based on December 2025 generation numbers.| County | State Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Santa Cruz County, AZ | # 13 | 2 | 9.8 GWh |
| Gila County, AZ | # 12 | 2 | 48.8 GWh |
| Yavapai County, AZ | # 11 | 7 | 92.2 GWh |
| La Paz County, AZ | # 10 | 17 | 112.4 GWh |
| Navajo County, AZ | # 9 | 11 | 2.1 TWh |
| Yuma County, AZ | # 8 | 17 | 2.8 TWh |
| Cochise County, AZ | # 7 | 13 | 2.9 TWh |
| County | State Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Pima County, AZ | # 6 | 42 | 3.1 TWh |
| Coconino County, AZ | # 5 | 11 | 4.2 TWh |
| Pinal County, AZ | # 4 | 28 | 6.4 TWh |
| Apache County, AZ | # 3 | 4 | 7.9 TWh |
| Mohave County, AZ | # 2 | 18 | 10.2 TWh |
| Maricopa County, AZ | # 1 | 97 | 78.0 TWh |