Directory of Power Plants in Arizona
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Palo Verde | Arizona Public Service Co | Wintersburg, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 31.4 TWh | Dec 1985 | Feb 2026 | Nuclear |
| Springerville | Tucson Electric Power Co | Springerville, AZ | Tucson Electric Power (TEPC) | 5.5 TWh | May 1985 | Feb 2026 | Subbituminous Coal : 99.2% |
| Red Hawk | Arizona Public Service Co | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 5.2 TWh | Jun 2002 | Feb 2026 | Natural Gas |
| Santan | Salt River Project | Gilbert, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 4.9 TWh | Sep 1974 | Feb 2026 | Natural Gas |
| West Phoenix | Arizona Public Service Co | Phoenix, AZ | Arizona Public Service Company (AZPS) | 3.9 TWh | Apr 1972 | Feb 2026 | Natural Gas |
| Mesquite Generating Station Block 2 | Mesquite Power LLC | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 3.7 TWh | Nov 2003 | Feb 2026 | Natural Gas |
| Griffith Energy LLC | Griffith Energy LLC | Golden Valley, AZ | Griffith Energy, LLC (GRIF) | 3.7 TWh | Dec 2001 | Feb 2026 | Natural Gas |
| Gila River Power Block 3 | Salt River Project | Gila Bend, AZ | Tucson Electric Power (TEPC) | 3.2 TWh | May 2003 | Feb 2026 | Natural Gas |
| Arlington Valley Energy Facility | Arlington Valley LLC | Arlington, AZ | Arlington Valley, LLC (DEAA) | 3.0 TWh | May 2002 | Feb 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 | Feb 2026 | Natural Gas |
| Coronado | Salt River Project | St Johns, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.9 TWh | Nov 1979 | Feb 2026 | Subbituminous Coal : 99.7% |
| 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 | Feb 2026 | Natural Gas |
| Desert Basin | Salt River Project | Casa Grande, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.7 TWh | Sep 2001 | Feb 2026 | Natural Gas |
| Harquahala Generating Project | New Harquahala Generating Co, LLC | Tonopah, AZ | New Harquahala Generating Company, LLC (HGMA) | 2.7 TWh | May 2004 | Feb 2026 | Natural Gas |
| Glen Canyon Dam | U S Bureau of Reclamation | Page, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.6 TWh | Aug 1964 | Feb 2026 | Water |
| 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 | Feb 2026 | Natural Gas |
| Gila River Power Block 4 | Salt River Project | Gila Bend, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.4 TWh | Apr 2003 | Feb 2026 | Natural Gas |
| South Point Energy Center | South Point Energy Center LLC | Mohave Valley, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.2 TWh | Feb 2001 | Feb 2026 | Natural Gas |
| Apache Station | Arizona Electric Pwr Coop Inc | Cochise, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.1 TWh | Jan 1963 | Feb 2026 | Natural Gas : 86.0% Subbituminous Coal : 14.0% |
| H Wilson Sundt Generating Station | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 1.9 TWh | Nov 1958 | Feb 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) | 1.1 TWh | Aug 1936 | Feb 2026 | Water |
| Sonoran Solar Energy | Sonoran Solar Energy, LLC | Buckeye, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 1.1 TWh | Jun 2023 | Feb 2026 | Solar |
| Kyrene | Salt River Project | Tempe, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 999.6 GWh | Jun 1952 | Feb 2026 | Natural Gas |
| Mohave County Wind Farm | Mohave County Wind Farm | Willow Beach, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 962.8 GWh | Nov 2020 | Feb 2026 | Wind |
| 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 |
| Solana Generating Station | Arizona Solar One LLC | Gila Bend, AZ | Arizona Public Service Company (AZPS) | 853.4 GWh | Sep 2013 | Feb 2026 | Solar |
| Eleven Mile Solar Center | Eleven Mile Solar Center, LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 791.1 GWh | May 2024 | Feb 2026 | Solar |
| Harquahala 2 | Copia Power | Tonopah, AZ | Arizona Public Service Company (AZPS) | 750.4 GWh | - | Feb 2026 | Solar |
| Sun Streams 4 | Sun Streams Expansion, LLC | Tonopah, AZ | Arizona Public Service Company (AZPS) | 732.1 GWh | - | Feb 2026 | Solar |
| McFarland B Solar and Storage | AES Clean Energy | Dateland, AZ | California Independent System Operator (CISO) | 677.4 GWh | Nov 2024 | Feb 2026 | Solar |
| Box Canyon (AZ) | BOCA bn, LLC | Florence, AZ | Arizona Public Service Company (AZPS) | 609.7 GWh | - | Feb 2026 | Solar |
| Chevelon Butte Wind Farm | AES Clean Energy | Winslow, AZ | Arizona Public Service Company (AZPS) | 582.1 GWh | Apr 2023 | Feb 2026 | Wind |
| Agua Caliente Solar Project | Agua Caliente Solar | Dateland, AZ | California Independent System Operator (CISO) | 561.4 GWh | Apr 2012 | Feb 2026 | Solar |
| McFarland A Solar and Storage | AES Clean Energy | Dateland, AZ | California Independent System Operator (CISO) | 552.9 GWh | Nov 2023 | Feb 2026 | Solar |
| Brittlebush Solar | Randolph Solar Park LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 536.8 GWh | Oct 2024 | Feb 2026 | Solar |
| Babbitt Ranch Energy Center | Babbitt Ranch Energy Center, LLC | Flagstaff, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 522.7 GWh | Jun 2024 | Feb 2026 | Wind |
| Chevelon Butte Phase 2 | AES Clean Energy | Winslow, AZ | Arizona Public Service Company (AZPS) | 486.6 GWh | Mar 2024 | Feb 2026 | Wind |
| Sun Streams 3 | Sun Streams PVS, LLC | Arlington, AZ | Arizona Public Service Company (AZPS) | 477.6 GWh | May 2024 | Feb 2026 | Solar |
| White Wing Solar | Leeward Asset Management, LLC | Yuma, AZ | California Independent System Operator (CISO) | 445.1 GWh | Sep 2024 | Feb 2026 | Solar |
| Mesquite Solar 3, LLC | Consolidated Edison Development Inc. | Tonopah, AZ | California Independent System Operator (CISO) | 441.5 GWh | Nov 2016 | Feb 2026 | Solar |
| Sun Streams, LLC | EDP Renewables North America LLC | Arlington, AZ | California Independent System Operator (CISO) | 409.9 GWh | Dec 2019 | Feb 2026 | Solar |
| Ocotillo | Arizona Public Service Co | Tempe, AZ | Arizona Public Service Company (AZPS) | 405.1 GWh | Feb 1960 | Feb 2026 | Natural Gas |
| Mesquite Solar 1 | Consolidated Edison Development Inc. | Tonopah, AZ | California Independent System Operator (CISO) | 401.4 GWh | Oct 2011 | Dec 2024 | Solar |
| Harquahala Sun Solar Project | Copia Power | Tonopah, AZ | Arizona Public Service Company (AZPS) | 374.3 GWh | - | Feb 2026 | Solar |
| Serrano | Serrano Solar, LLC | Marana, AZ | Arizona Public Service Company (AZPS) | 372.3 GWh | - | Feb 2026 | Solar |
| Arlington Valley Solar Energy II | Arevon Energy, Inc. | Arlington, AZ | Arizona Public Service Company (AZPS) | 341.2 GWh | Mar 2013 | Dec 2024 | Solar |
| Sun Streams 2 | Sun Streams 2, LLC | Hassayampa, AZ | California Independent System Operator (CISO) | 336.2 GWh | May 2021 | Feb 2026 | Solar |
| Storey Solar and Storage | Storey Energy Center, LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 299.6 GWh | Aug 2023 | Feb 2026 | Solar |
| Agave | Arizona Public Service Co | Arlington, AZ | Arizona Public Service Company (AZPS) | 298.0 GWh | Aug 2023 | Feb 2026 | Solar |
| Mesquite Solar 2, LLC | Consolidated Edison Development Inc. | Tonopah, AZ | California Independent System Operator (CISO) | 288.1 GWh | Nov 2016 | Feb 2026 | Solar |
| Saint Solar | Saint Solar LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 280.7 GWh | Dec 2020 | Feb 2026 | Solar |
| Sundance | Arizona Public Service Co | Casa Grande, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 274.2 GWh | Apr 2002 | Feb 2026 | Natural Gas |
| Wilmot Energy Center LLC | Wilmot Energy Center LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 268.1 GWh | Mar 2021 | Feb 2026 | Solar |
| Central Line Solar, LLC | AES Distributed Energy | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 267.2 GWh | Mar 2022 | Feb 2026 | Solar |
| West Line Solar, LLC | West Line Solar, LLC | City of Eloy, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 256.0 GWh | Nov 2022 | Feb 2026 | Solar |
| East Line Solar | AES Distributed Energy | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 251.3 GWh | Nov 2020 | Feb 2026 | Solar |
| Agua Fria | Salt River Project | Glendale, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 242.1 GWh | Mar 1957 | Feb 2026 | Natural Gas |
| Yuma Solar + Storage | Invenergy Services LLC | Fortuna Foothills, AZ | Arizona Public Service Company (AZPS) | 186.4 GWh | - | Feb 2026 | Solar |
| Perrin Ranch Wind LLC | Perrin Ranch Wind LLC | Williams, AZ | Arizona Public Service Company (AZPS) | 173.7 GWh | Dec 2011 | Feb 2026 | Wind |
| Novo BioPower Plant | Novo Biopower LLC | Snowflake, AZ | Arizona Public Service Company (AZPS) | 168.1 GWh | May 2008 | Dec 2024 | Wood/Wood Waste Solids : 99.8% |
| Yucca | Arizona Public Service Co | Yuma, AZ | Arizona Public Service Company (AZPS) | 162.2 GWh | Mar 1959 | Feb 2026 | Natural Gas : 98.3% Distillate Fuel Oil : 1.7% |
| Red Horse 2 | Red Horse 2 | Willcox, AZ | Tucson Electric Power (TEPC) | 149.5 GWh | Jul 2015 | Feb 2026 | Solar : 69.0% Wind : 31.0% |
| Mesquite Solar 4, LLC | Consolidated Edison Development Inc. | Tonopah, AZ | California Independent System Operator (CISO) | 143.2 GWh | Dec 2023 | Feb 2026 | Solar |
| Mesquite Solar 5, LLC | Consolidated Edison Development Inc. | Tonopah, AZ | Arizona Public Service Company (AZPS) | 137.5 GWh | Jun 2023 | Feb 2026 | Solar |
| Gray Hawk Solar | Gray Hawk Solar, LLC | Kingman, AZ | Tucson Electric Power (TEPC) | 135.5 GWh | May 2018 | Feb 2026 | Solar |
| Saguaro | Arizona Public Service Co | Red Rock, AZ | Arizona Public Service Company (AZPS) | 135.2 GWh | Apr 1972 | Dec 2024 | Natural Gas |
| Bonnybrooke PV | Apple, Inc | Florence, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 121.2 GWh | Oct 2016 | Dec 2024 | Solar |
| Kayenta Solar Project | NGI-Kayenta Solar Lessor I, LLC | Kayenta, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 120.6 GWh | Apr 2017 | Feb 2026 | Solar |
| Sandstone Solar | AES Distributed Energy | Florence, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 117.2 GWh | Nov 2015 | Dec 2024 | Solar |
| Poseidon Wind, LLC | Axium Arizona Renewables, LLC | Herber, AZ | Arizona Public Service Company (AZPS) | 104.0 GWh | Nov 2010 | Feb 2026 | Wind |
| Roadrunner Solar and BESS | Clenera LLC | Cochise, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 102.4 GWh | - | Feb 2026 | Solar |
| Roosevelt | Salt River Project | Roosevelt, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 101.8 GWh | Feb 1973 | Dec 2024 | Water |
| Dry Lake Wind LLC | Avangrid Power LLC | Heber, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 98.5 GWh | Jul 2009 | Feb 2026 | Wind |
| Foothills Solar Plant Hybrid | Arizona Public Service Co | Yuma, AZ | Arizona Public Service Company (AZPS) | 97.8 GWh | Feb 2013 | Dec 2024 | Solar |
| Red Rock | Arizona Public Service Co | Red Rock, AZ | Arizona Public Service Company (AZPS) | 93.1 GWh | Jan 2017 | Feb 2026 | Solar |
| Black Mountain Generating Station | UNS Electric, Inc | Golden Valley, AZ | Tucson Electric Power (TEPC) | 86.4 GWh | Apr 2008 | Dec 2024 | Natural Gas |
| Gila Bend Hybrid | Arizona Public Service Co | Gila Bend, AZ | Arizona Public Service Company (AZPS) | 84.7 GWh | Sep 2014 | Dec 2024 | Solar |
| OE_AZ1 | Onward Energy | Salome, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 79.5 GWh | Nov 2019 | Feb 2026 | Solar |
| Horse Mesa | Salt River Project | Apache Junction, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 77.7 GWh | Mar 1927 | Feb 2026 | Water |
| Avalon Solar | Arevon Energy, Inc. | Pima, AZ | Tucson Electric Power (TEPC) | 64.6 GWh | Nov 2014 | Dec 2024 | Solar |
| Avra Valley Solar | Solar Avra Valley LLC | Marana, AZ | Tucson Electric Power (TEPC) | 62.5 GWh | Dec 2012 | Dec 2024 | Solar |
| Coolidge Generation Station | Salt River Project | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 55.8 GWh | Apr 2011 | Feb 2026 | Natural Gas |
| Pinal Central Energy Center Hybrid | Pinal Central Energy Center, LLC | Casa Grande, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 55.8 GWh | Mar 2018 | Feb 2026 | Solar |
| 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) | 52.9 GWh | Nov 2023 | Feb 2026 | Solar |
| Red Horse III | Red Horse III | Wilcox, AZ | Tucson Electric Power (TEPC) | 52.2 GWh | Jun 2016 | Dec 2024 | Solar |
| Sulphur Springs | MN8 Energy LLC | Cochise, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 51.5 GWh | Nov 2016 | Dec 2024 | Solar |
| 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 |
| Picture Rocks Solar, LLC | MN8 Energy LLC | Marana, AZ | Tucson Electric Power (TEPC) | 49.8 GWh | Nov 2012 | Dec 2024 | Solar |
| Cogeneration 1 | University of Arizona | Tucson, AZ | Tucson Electric Power (TEPC) | 47.3 GWh | Oct 2002 | Feb 2026 | Natural Gas |
| Stewart Mountain | Salt River Project | Phoenix, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 45.7 GWh | Feb 1930 | Dec 2024 | Water |
| Mohave Energy - Hybrid | Mohave Energy | Fort Mohave, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 45.3 GWh | Aug 2023 | Feb 2026 | Solar |
| Avalon Solar II | Avalon Solar Partners II, LLC | Sahuarita, AZ | Tucson Electric Power (TEPC) | 43.8 GWh | Feb 2016 | Dec 2024 | Solar |
| Mormon Flat | Salt River Project | Apache Junction, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 41.5 GWh | Apr 1926 | Feb 2026 | Water |
| Chino Valley Solar | Arizona Public Service Co | Chino Valley, AZ | Arizona Public Service Company (AZPS) | 41.0 GWh | Nov 2012 | 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 |
| Arizona State University CHP | Energy Center Phoenix LLC | Tempe, AZ | Arizona Public Service Company (AZPS) | 40.2 GWh | Mar 2006 | Feb 2026 | Natural Gas |
| Fort Huachuca Solar PV Project | Tucson Electric Power Co | Sierra Vista, AZ | Tucson Electric Power (TEPC) | 40.1 GWh | Nov 2014 | Dec 2024 | Solar |
| Cogeneration 2 | University of Arizona | Tucson, AZ | Tucson Electric Power (TEPC) | 39.5 GWh | Oct 2002 | Feb 2026 | Natural Gas |
Browse Power Plants By Arizona Counties
Figures are based on February 2026 generation numbers.| County | State Rank | Active Plants | Feb 2026 Generation |
|---|---|---|---|
| Maricopa County, AZ | # 1 | 88 | 78.1 TWh |
| Mohave County, AZ | # 2 | 16 | 9.3 TWh |
| Apache County, AZ | # 3 | 4 | 8.5 TWh |
| Pinal County, AZ | # 4 | 26 | 6.7 TWh |
| Coconino County, AZ | # 5 | 12 | 4.4 TWh |
| Pima County, AZ | # 6 | 39 | 2.9 TWh |
| Yuma County, AZ | # 7 | 17 | 2.7 TWh |
| County | State Rank | Active Plants | Feb 2026 Generation |
|---|---|---|---|
| Cochise County, AZ | # 8 | 11 | 2.6 TWh |
| Navajo County, AZ | # 9 | 8 | 1.8 TWh |
| La Paz County, AZ | # 10 | 13 | 106.9 GWh |
| Yavapai County, AZ | # 11 | 7 | 97.8 GWh |
| Gila County, AZ | # 12 | 2 | 50.2 GWh |
| Santa Cruz County, AZ | # 13 | 2 | 4.8 GWh |