Directory of Power Plants in Arizona
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| RE Bagdad Solar I LLC | Duke Energy Renewables Services | Bagdad, AZ | Arizona Public Service Company (AZPS) | 30.1 GWh | Nov 2011 | Dec 2025 | Solar |
| RE Ajo 1 LLC | Duke Energy Renewables Services | Ajo, AZ | Arizona Public Service Company (AZPS) | 9.0 GWh | Jul 2011 | Dec 2025 | Solar |
| RE Gillespie 1 LLC | MN8 Energy LLC | Gila Bend, AZ | Arizona Public Service Company (AZPS) | 38.7 GWh | Nov 2013 | Dec 2025 | Solar |
| Red Rock | Arizona Public Service Co | Red Rock, AZ | Arizona Public Service Company (AZPS) | 88.4 GWh | Jan 2017 | May 2026 | Solar |
| Roosevelt | Salt River Project | Roosevelt, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 76.0 GWh | Feb 1973 | Dec 2025 | Water |
| Red Hawk | Arizona Public Service Co | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 5.0 TWh | Jun 2002 | May 2026 | Natural Gas |
| Roger Road WWTP | SunE M5C Holdings LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 988.0 MWh | Jul 2010 | Dec 2025 | Solar |
| Red Horse 2 | Red Horse 2 | Willcox, AZ | Tucson Electric Power (TEPC) | 148.3 GWh | Jul 2015 | May 2026 | Solar : 68.6% Wind : 31.4% |
| Rio Rico Solar | UNS Electric, Inc | Rio Rico, AZ | Tucson Electric Power (TEPC) | 3.0 GWh | Feb 2014 | Dec 2025 | Solar |
| Red Horse III | Red Horse III | Wilcox, AZ | Tucson Electric Power (TEPC) | 55.6 GWh | Jun 2016 | Dec 2025 | Solar |
| Raptor Ridge | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 35.5 GWh | May 2022 | Dec 2025 | Solar |
| Roadrunner Solar and BESS | Clenera LLC | Cochise, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 219.3 GWh | Nov 2025 | May 2026 | Solar |
Browse Power Plants By Arizona Counties
Figures are based on May 2026 generation numbers.| County | State Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Maricopa County, AZ | # 1 | 94 | 78.3 TWh |
| Mohave County, AZ | # 2 | 17 | 10.0 TWh |
| Apache County, AZ | # 3 | 4 | 8.0 TWh |
| Pinal County, AZ | # 4 | 26 | 6.4 TWh |
| Coconino County, AZ | # 5 | 12 | 4.2 TWh |
| Pima County, AZ | # 6 | 42 | 3.1 TWh |
| Cochise County, AZ | # 7 | 11 | 2.8 TWh |
| County | State Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Yuma County, AZ | # 8 | 17 | 2.8 TWh |
| Navajo County, AZ | # 9 | 11 | 2.0 TWh |
| La Paz County, AZ | # 10 | 17 | 100.7 GWh |
| Yavapai County, AZ | # 11 | 7 | 92.2 GWh |
| Gila County, AZ | # 12 | 2 | 48.8 GWh |
| Santa Cruz County, AZ | # 13 | 2 | 9.8 GWh |