Directory of Power Plants in Arizona
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Brittlebush Solar | Randolph Solar Park LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 519.1 GWh | Oct 2024 | Aug 2026 | Solar |
| Papago PV | RE Papago PV LLC | Tonopah, AZ | Arizona Public Service Company (AZPS) | 261.8 GWh | - | Aug 2026 | Solar |
| Red Horse 2 | Red Horse 2 | Willcox, AZ | Tucson Electric Power (TEPC) | 187.9 GWh | Jul 2015 | Aug 2026 | Solar : 69.5% Wind : 30.5% |
| Red Horse III | Red Horse III | Wilcox, AZ | Tucson Electric Power (TEPC) | 55.6 GWh | Jun 2016 | Dec 2025 | Solar |
| Valencia Solar | RWE Clean Energy | Tucson, AZ | Tucson Electric Power (TEPC) | 26.6 GWh | May 2013 | Dec 2025 | Solar |
| Iron Horse Battery Storage Hybrid | RWE Clean Energy | Tucson, AZ | Tucson Electric Power (TEPC) | 4.2 GWh | Mar 2017 | Dec 2025 | Solar |
| Mesquite Solar 1 | RWE Clean Energy | Tonopah, AZ | California Independent System Operator (CISO) | 392.2 GWh | Oct 2011 | Dec 2025 | Solar |
| Arlington Valley Solar Energy I | RWE Clean Energy | Arlington, AZ | Arizona Public Service Company (AZPS) | 213.8 GWh | - | Aug 2026 | Solar |
| Mesquite Solar 4, LLC | RWE Clean Energy | Tonopah, AZ | California Independent System Operator (CISO) | 133.6 GWh | Dec 2023 | Aug 2026 | Solar |
| Mesquite Solar 5, LLC | RWE Clean Energy | Tonopah, AZ | Arizona Public Service Company (AZPS) | 121.2 GWh | Jun 2023 | Aug 2026 | Solar |
| Mesquite Solar 3, LLC | RWE Clean Energy | Tonopah, AZ | California Independent System Operator (CISO) | 434.5 GWh | Nov 2016 | Aug 2026 | Solar |
| Mesquite Solar 2, LLC | RWE Clean Energy | Tonopah, AZ | California Independent System Operator (CISO) | 247.8 GWh | Nov 2016 | Aug 2026 | Solar |
| Tech Park Solar | RWE Clean Energy | Tucson, AZ | Tucson Electric Power (TEPC) | 12.4 GWh | Nov 2012 | Dec 2025 | Solar |
| Saint Solar | Saint Solar LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 275.0 GWh | Dec 2020 | Aug 2026 | Solar |
| Coolidge Generation Station | Salt River Project | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 114.7 GWh | Apr 2011 | Aug 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 |
| Stewart Mountain | Salt River Project | Phoenix, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 36.6 GWh | Feb 1930 | Dec 2025 | Water |
| Mormon Flat | Salt River Project | Apache Junction, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 34.3 GWh | Apr 1926 | Aug 2026 | Water |
| Kyrene | Salt River Project | Tempe, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 1.2 TWh | Jun 1952 | Aug 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 | Aug 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 | Aug 2026 | Natural Gas |
| Santan | Salt River Project | Gilbert, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 5.2 TWh | Sep 1974 | Aug 2026 | Natural Gas |
| Coronado | Salt River Project | St Johns, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.7 TWh | Nov 1979 | Aug 2026 | Subbituminous Coal : 99.7% |
| Horse Mesa | Salt River Project | Apache Junction, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 74.1 GWh | Mar 1927 | Aug 2026 | Water |
| Gila River Power Block 3 | Salt River Project | Gila Bend, AZ | Tucson Electric Power (TEPC) | 3.2 TWh | May 2003 | Aug 2026 | Natural Gas |
| Agua Fria | Salt River Project | Glendale, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 202.1 GWh | Mar 1957 | Aug 2026 | Natural Gas : 99.9% |
| Copper Crossing Energy and Research Cent | Salt River Project | Florence, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 4.3 GWh | Apr 2024 | Dec 2025 | Natural Gas |
| Bonnybrooke PV | Salt River Project | Florence, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 90.8 GWh | Oct 2016 | Dec 2025 | Solar |
| 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 | Aug 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 | Aug 2026 | Natural Gas |
| Mesquite Generating Station Block 1 | Salt River Project | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 3.0 TWh | May 2003 | Aug 2026 | Natural Gas |
| Serrano | Serrano Solar, LLC | Marana, AZ | Arizona Public Service Company (AZPS) | 408.4 GWh | Mar 2025 | Aug 2026 | Solar |
| Queen Creek Solar Farm | Siete Solar LLC | Queen Creek, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 34.8 GWh | Sep 2012 | Dec 2025 | Solar |
| Amazon TUS2 | SkyHigh 2 Solar | Tucson, AZ | Tucson Electric Power (TEPC) | 5.5 GWh | May 2022 | Dec 2025 | Solar |
| T0588 Phoenix - AZ | SoCore Energy LLC | Phoenix, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.2 GWh | Apr 2017 | Dec 2025 | Solar |
| TJX Tucson | SoCore Energy LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 2.1 GWh | Jan 2018 | Dec 2025 | Solar |
| TJX Phoenix | SoCore Energy LLC | Phoenix, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 6.1 GWh | Dec 2017 | Dec 2025 | Solar |
| Avra Valley Solar | Solar Avra Valley LLC | Marana, AZ | Tucson Electric Power (TEPC) | 61.5 GWh | Dec 2012 | Dec 2025 | Solar |
| Sonoran Solar Energy | Sonoran Solar Energy, LLC | Buckeye, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 984.0 GWh | Jun 2023 | Aug 2026 | Solar |
| South Point Energy Center | South Point Energy Center LLC | Mohave Valley, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.9 TWh | Feb 2001 | Aug 2026 | Natural Gas |
| SR McNeal | SR McNeal, LLC | McNeal, AZ | Tucson Electric Power (TEPC) | 53.8 GWh | Nov 2023 | Aug 2026 | Solar |
| Storey Solar and Storage | Storey Energy Center, LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 298.2 GWh | Aug 2023 | Aug 2026 | Solar |
| Sun Pond | Sun Pond, LLC | Tonopah, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 112.5 GWh | - | Aug 2026 | Solar |
| Sun Streams 2 | Sun Streams 2, LLC | Hassayampa, AZ | California Independent System Operator (CISO) | 305.4 GWh | May 2021 | Aug 2026 | Solar |
| Sun Streams 4 | Sun Streams Expansion, LLC | Tonopah, AZ | Arizona Public Service Company (AZPS) | 732.3 GWh | Feb 2025 | Aug 2026 | Solar |
| Sun Streams 3 | Sun Streams PVS, LLC | Arlington, AZ | Arizona Public Service Company (AZPS) | 403.6 GWh | May 2024 | Aug 2026 | Solar |
| Prescott Solar Plant | SunE AZ1, LLC | Prescott, AZ | Arizona Public Service Company (AZPS) | 23.0 GWh | Nov 2011 | Dec 2025 | Solar |
| Saddle Mountain Solar I | SunE AZ2, LLC | Tonopah, AZ | Arizona Public Service Company (AZPS) | 33.3 GWh | Nov 2012 | Dec 2025 | Solar |
| Roger Road WWTP | SunE M5C Holdings LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 988.0 MWh | Jul 2010 | Dec 2025 | Solar |
| Phoenix Airport East Economy Lot | SunStrong Management, LLC | Phoenix, AZ | Arizona Public Service Company (AZPS) | 777.0 MWh | Nov 2012 | Dec 2025 | Solar |
| Phoenix Airport Rental Car Center | SunStrong Management, LLC | Phoenix, AZ | Arizona Public Service Company (AZPS) | 4.2 GWh | Nov 2012 | Dec 2025 | Solar |
| Cogenra - TEP | Terraform Arcadia | Tucson, AZ | Tucson Electric Power (TEPC) | 1.9 GWh | Jun 2014 | Dec 2025 | Solar |
| Pima Community College - East Campus | Tesla Inc. | Tucson, AZ | Tucson Electric Power (TEPC) | 2.8 GWh | Jul 2017 | Dec 2025 | Solar |
| Estrella Mountain PV | Tesla Inc. | Avondale, AZ | Arizona Public Service Company (AZPS) | 3.1 GWh | May 2019 | Dec 2025 | Solar |
| Actus Lend Lease DMAFB | Tesla Inc. | Tucson, AZ | Tucson Electric Power (TEPC) | 2.5 GWh | Nov 2009 | Dec 2024 | Solar |
| Intel - Ocotillo Campus Solar | Tesla Inc. | Chandler, AZ | Arizona Public Service Company (AZPS) | 3.1 GWh | Nov 2017 | Dec 2025 | Solar |
| Pima Community College | Tesla Inc. | Tucson, AZ | Tucson Electric Power (TEPC) | 1.3 GWh | Jul 2019 | Apr 2025 | Solar |
| North Loop | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 1.0 GWh | Nov 1972 | Dec 2025 | Natural Gas |
| H Wilson Sundt Generating Station | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 1.6 TWh | Nov 1958 | Aug 2026 | Natural Gas |
| Demoss Petrie | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 2.1 GWh | May 2001 | Dec 2025 | Natural Gas |
| Springerville | Tucson Electric Power Co | Springerville, AZ | Tucson Electric Power (TEPC) | 5.5 TWh | May 1985 | Aug 2026 | Subbituminous Coal : 99.4% |
| Fort Huachuca Solar PV Project | Tucson Electric Power Co | Sierra Vista, AZ | Tucson Electric Power (TEPC) | 34.8 GWh | Nov 2014 | Dec 2025 | Solar |
| Prairie Fire | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 7.7 GWh | Nov 2012 | Dec 2025 | Solar |
| UASTP I | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 2.1 GWh | Nov 2010 | Dec 2025 | Solar |
| Raptor Ridge | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 35.5 GWh | May 2022 | Dec 2025 | Solar |
| Hoover Dam (AZ) | U S Bureau of Reclamation | Boulder City, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 1.4 TWh | Aug 1936 | Aug 2026 | Water |
| Glen Canyon Dam | U S Bureau of Reclamation | Page, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.1 TWh | Aug 1964 | Aug 2026 | Water |
| 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 |
| Cogeneration 2 | University of Arizona | Tucson, AZ | Tucson Electric Power (TEPC) | 39.5 GWh | Oct 2002 | Aug 2026 | Natural Gas |
| Cogeneration 1 | University of Arizona | Tucson, AZ | Tucson Electric Power (TEPC) | 52.7 GWh | Oct 2002 | Aug 2026 | Natural Gas |
| 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% |
| Black Mountain Generating Station | UNS Electric, Inc | Golden Valley, AZ | Tucson Electric Power (TEPC) | 57.1 GWh | Apr 2008 | Nov 2025 | Natural Gas |
| La Senita | UNS Electric, Inc | Kingman, AZ | Tucson Electric Power (TEPC) | 1.7 GWh | Oct 2011 | Sep 2025 | Solar |
| Jacobson 5 MW Solar | UNS Electric, Inc | Kingman, AZ | Tucson Electric Power (TEPC) | 8.9 GWh | Feb 2017 | Dec 2025 | Solar |
| Rio Rico Solar | UNS Electric, Inc | Rio Rico, AZ | Tucson Electric Power (TEPC) | 3.0 GWh | Feb 2014 | Dec 2025 | Solar |
| 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% |
| Amazon Goodyear | Westbound Solar 3, LLC | Goodyear, AZ | Arizona Public Service Company (AZPS) | 5.1 GWh | Jun 2023 | Dec 2025 | Solar |
| Wilmot Energy Center II | Wilmot Energy Center II, LLC | Sahuarita, AZ | Tucson Electric Power (TEPC) | 133.0 GWh | - | Aug 2026 | Solar |
| Wilmot Energy Center LLC | Wilmot Energy Center LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 267.2 GWh | Mar 2021 | Aug 2026 | Solar |
| Northwest Regional | WM Renewable Energy LLC | Surprise, AZ | Arizona Public Service Company (AZPS) | 21.2 GWh | Jul 2012 | Dec 2025 | Landfill Gas |
Browse Power Plants By Arizona Counties
Figures are based on August 2026 generation numbers.| County | State Rank | Active Plants | Aug 2026 Generation |
|---|---|---|---|
| Maricopa County, AZ | # 1 | 97 | 79.3 TWh |
| Mohave County, AZ | # 2 | 18 | 10.3 TWh |
| Apache County, AZ | # 3 | 4 | 8.2 TWh |
| Pinal County, AZ | # 4 | 28 | 6.4 TWh |
| Coconino County, AZ | # 5 | 11 | 3.9 TWh |
| Cochise County, AZ | # 6 | 13 | 3.2 TWh |
| Pima County, AZ | # 7 | 42 | 2.8 TWh |
| County | State Rank | Active Plants | Aug 2026 Generation |
|---|---|---|---|
| Yuma County, AZ | # 8 | 17 | 2.7 TWh |
| Navajo County, AZ | # 9 | 11 | 2.3 TWh |
| La Paz County, AZ | # 10 | 17 | 281.2 GWh |
| Yavapai County, AZ | # 11 | 7 | 88.5 GWh |
| Gila County, AZ | # 12 | 2 | 48.8 GWh |
| Santa Cruz County, AZ | # 13 | 2 | 9.8 GWh |