Directory of Power Plants in Arizona
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Poseidon Wind, LLC | Axium Arizona Renewables, LLC | Herber, AZ | Arizona Public Service Company (AZPS) | 102.5 GWh | Nov 2010 | Aug 2026 | Wind |
| Sun Pond | Sun Pond, LLC | Tonopah, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 112.5 GWh | - | 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 |
| Sandstone Solar | AES Distributed Energy | Florence, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 116.9 GWh | Nov 2015 | Dec 2025 | Solar |
| Saguaro | Arizona Public Service Co | Red Rock, AZ | Arizona Public Service Company (AZPS) | 117.5 GWh | Apr 1972 | Dec 2025 | Natural Gas |
| Kayenta Solar Project | NGI-Kayenta Solar Lessor I, LLC | Kayenta, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 119.5 GWh | Apr 2017 | 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 |
| Wilmot Energy Center II | Wilmot Energy Center II, LLC | Sahuarita, AZ | Tucson Electric Power (TEPC) | 133.0 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 |
| Gray Hawk Solar | Gray Hawk Solar, LLC | Kingman, AZ | Tucson Electric Power (TEPC) | 136.6 GWh | May 2018 | Aug 2026 | Solar |
| Catclaw Solar | 311SV 8me, LLC | Buckeye, AZ | Arizona Public Service Company (AZPS) | 145.4 GWh | - | Aug 2026 | Solar |
| Centennial Flats | Copia Power | Salome, AZ | Arizona Public Service Company (AZPS) | 152.0 GWh | - | Aug 2026 | Solar |
| Sundance | Arizona Public Service Co | Casa Grande, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 152.9 GWh | Apr 2002 | Aug 2026 | Natural Gas |
| Yucca | Arizona Public Service Co | Yuma, AZ | Arizona Public Service Company (AZPS) | 161.3 GWh | Mar 1959 | Aug 2026 | Natural Gas : 98.9% Distillate Fuel Oil : 1.1% |
| Perrin Ranch Wind LLC | Perrin Ranch Wind LLC | Williams, AZ | Arizona Public Service Company (AZPS) | 163.2 GWh | Dec 2011 | Aug 2026 | Wind |
| 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% |
| Yuma Solar + Storage | Invenergy Services LLC | Fortuna Foothills, AZ | Arizona Public Service Company (AZPS) | 194.3 GWh | Feb 2025 | Aug 2026 | Solar |
| 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% |
| Novo BioPower Plant | Novo Biopower LLC | Snowflake, AZ | Arizona Public Service Company (AZPS) | 202.3 GWh | May 2008 | Dec 2025 | Wood/Wood Waste Solids |
| Arlington Valley Solar Energy I | RWE Clean Energy | Arlington, AZ | Arizona Public Service Company (AZPS) | 213.8 GWh | - | Aug 2026 | Solar |
| East Line Solar | AES Distributed Energy | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 230.4 GWh | Nov 2020 | Aug 2026 | Solar |
| West Line Solar, LLC | Foster Clean Power A LLC | City of Eloy, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 242.8 GWh | Nov 2022 | Aug 2026 | Solar |
| Central Line Solar, LLC | AES Distributed Energy | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 247.6 GWh | Mar 2022 | 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 |
| Papago PV | RE Papago PV LLC | Tonopah, AZ | Arizona Public Service Company (AZPS) | 261.8 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 |
| Saint Solar | Saint Solar LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 275.0 GWh | Dec 2020 | Aug 2026 | Solar |
| Babacomari Solar | Babacomari Solar, LLC | Huachuca, AZ | Tucson Electric Power (TEPC) | 288.3 GWh | - | 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 Streams 2 | Sun Streams 2, LLC | Hassayampa, AZ | California Independent System Operator (CISO) | 305.4 GWh | May 2021 | Aug 2026 | Solar |
| Agave | Arizona Public Service Co | Arlington, AZ | Arizona Public Service Company (AZPS) | 313.3 GWh | Aug 2023 | Aug 2026 | Solar |
| Sun Streams, LLC | EDP Renewables North America LLC | Arlington, AZ | California Independent System Operator (CISO) | 330.7 GWh | Dec 2019 | Aug 2026 | Solar |
| Arlington Valley Solar Energy II | Arlington Valley Solar Energy II LLC | Arlington, AZ | Arizona Public Service Company (AZPS) | 336.0 GWh | Mar 2013 | Dec 2025 | Solar |
| Mesquite Solar 1 | RWE Clean Energy | Tonopah, AZ | California Independent System Operator (CISO) | 392.2 GWh | Oct 2011 | Dec 2025 | Solar |
| Sun Streams 3 | Sun Streams PVS, LLC | Arlington, AZ | Arizona Public Service Company (AZPS) | 403.6 GWh | May 2024 | Aug 2026 | Solar |
| Serrano | Serrano Solar, LLC | Marana, AZ | Arizona Public Service Company (AZPS) | 408.4 GWh | Mar 2025 | 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 |
| White Wing Solar | Leeward Asset Management, LLC | Yuma, AZ | California Independent System Operator (CISO) | 439.7 GWh | Sep 2024 | Aug 2026 | Solar |
| Roadrunner Solar and BESS | Clenera LLC | Cochise, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 451.4 GWh | Nov 2025 | Aug 2026 | Solar |
| West Camp Wind Farm | AES Clean Energy | Heber, AZ | Arizona Public Service Company (AZPS) | 453.2 GWh | - | Aug 2026 | Wind |
| Harquahala Sun Solar Project | Copia Power | Tonopah, AZ | Arizona Public Service Company (AZPS) | 454.9 GWh | Mar 2025 | Aug 2026 | Solar |
| Chevelon Butte Phase 2 | AES Clean Energy | Winslow, AZ | Arizona Public Service Company (AZPS) | 477.2 GWh | Mar 2024 | Aug 2026 | Wind |
| Agua Caliente Solar Project | Agua Caliente Solar | Dateland, AZ | California Independent System Operator (CISO) | 502.6 GWh | Apr 2012 | Aug 2026 | Solar |
| 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 |
| Babbitt Ranch Energy Center | Babbitt Ranch Energy Center, LLC | Flagstaff, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 520.4 GWh | Jun 2024 | Aug 2026 | Wind |
| McFarland A Solar and Storage | AES Clean Energy | Dateland, AZ | California Independent System Operator (CISO) | 532.4 GWh | Nov 2023 | Aug 2026 | Solar |
| Ocotillo | Arizona Public Service Co | Tempe, AZ | Arizona Public Service Company (AZPS) | 562.7 GWh | Feb 1960 | Aug 2026 | Natural Gas |
| Chevelon Butte Wind Farm | AES Clean Energy | Winslow, AZ | Arizona Public Service Company (AZPS) | 573.2 GWh | Apr 2023 | Aug 2026 | Wind |
| Sun Streams 4 | Sun Streams Expansion, LLC | Tonopah, AZ | Arizona Public Service Company (AZPS) | 732.3 GWh | Feb 2025 | Aug 2026 | Solar |
| Eleven Mile Solar Center | Eleven Mile Solar Center, LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 767.3 GWh | May 2024 | Aug 2026 | Solar |
| McFarland B Solar and Storage | AES Clean Energy | Dateland, AZ | California Independent System Operator (CISO) | 799.3 GWh | Nov 2024 | Aug 2026 | Solar |
| Solana Generating Station | Arizona Solar One LLC | Gila Bend, AZ | Arizona Public Service Company (AZPS) | 808.2 GWh | Sep 2013 | Aug 2026 | Solar |
| Harquahala 2 | Copia Power | Tonopah, AZ | Arizona Public Service Company (AZPS) | 826.9 GWh | Mar 2025 | Aug 2026 | Solar |
| Box Canyon (AZ) | BOCA bn, LLC | Florence, AZ | Arizona Public Service Company (AZPS) | 863.4 GWh | May 2025 | Aug 2026 | Solar |
| 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 |
| Mohave County Wind Farm | Mohave County Wind Farm | Willow Beach, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 951.3 GWh | Nov 2020 | Aug 2026 | Wind |
| 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 |
| Kyrene | Salt River Project | Tempe, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 1.2 TWh | Jun 1952 | Aug 2026 | Natural Gas |
| Cholla | Arizona Public Service Co | Joseph City, AZ | Arizona Public Service Company (AZPS) | 1.3 TWh | Apr 1962 | Mar 2025 | Subbituminous Coal : 99.9% |
| 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 |
| H Wilson Sundt Generating Station | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 1.6 TWh | Nov 1958 | Aug 2026 | Natural Gas |
| Apache Station | Arizona Electric Pwr Coop Inc | Cochise, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.0 TWh | Jan 1963 | Aug 2026 | Natural Gas : 91.9% Subbituminous Coal : 8.1% |
| 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 |
| 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 |
| 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 |
| 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% |
| 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 |
| Harquahala Generating Project | New Harquahala Generating Co, LLC | Tonopah, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.9 TWh | May 2004 | 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 |
| Gila River Power Block 3 | Salt River Project | Gila Bend, AZ | Tucson Electric Power (TEPC) | 3.2 TWh | May 2003 | Aug 2026 | Natural Gas |
| Arlington Valley Energy Facility | Arlington Valley LLC | Arlington, AZ | Arlington Valley, LLC (DEAA) | 3.2 TWh | May 2002 | Aug 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 | Aug 2026 | Natural Gas |
| West Phoenix | Arizona Public Service Co | Phoenix, AZ | Arizona Public Service Company (AZPS) | 3.8 TWh | Apr 1972 | Aug 2026 | Natural Gas |
| Griffith Energy LLC | Griffith Energy LLC | Golden Valley, AZ | Griffith Energy, LLC (GRIF) | 3.9 TWh | Dec 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 |
| Red Hawk | Arizona Public Service Co | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 5.4 TWh | Jun 2002 | Aug 2026 | Natural Gas |
| Springerville | Tucson Electric Power Co | Springerville, AZ | Tucson Electric Power (TEPC) | 5.5 TWh | May 1985 | Aug 2026 | Subbituminous Coal : 99.4% |
| Palo Verde | Arizona Public Service Co | Wintersburg, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 31.1 TWh | Dec 1985 | Aug 2026 | Nuclear |
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 | 88.5 GWh |
| La Paz County, AZ | # 10 | 17 | 281.2 GWh |
| Navajo County, AZ | # 9 | 11 | 2.3 TWh |
| Yuma County, AZ | # 8 | 17 | 2.7 TWh |
| Pima County, AZ | # 7 | 42 | 2.8 TWh |
| County | State Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Cochise County, AZ | # 6 | 13 | 3.2 TWh |
| Coconino County, AZ | # 5 | 11 | 3.9 TWh |
| Pinal County, AZ | # 4 | 28 | 6.4 TWh |
| Apache County, AZ | # 3 | 4 | 8.2 TWh |
| Mohave County, AZ | # 2 | 18 | 10.3 TWh |
| Maricopa County, AZ | # 1 | 97 | 79.3 TWh |