Directory of Power Plants in Arizona
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Douglas | Arizona Public Service Co | Douglas, AZ | Arizona Public Service Company (AZPS) | 93.0 MWh | Apr 1972 | Dec 2024 | Distillate Fuel Oil |
| Northwest Regional | WM Renewable Energy LLC | Surprise, AZ | Arizona Public Service Company (AZPS) | 16.6 GWh | Jul 2012 | Dec 2024 | Landfill Gas |
| Santan | Salt River Project | Gilbert, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 4.6 TWh | Sep 1974 | Dec 2025 | Natural Gas |
| Harquahala Generating Project | New Harquahala Generating Co, LLC | Tonopah, AZ | New Harquahala Generating Company, LLC (HGMA) | 2.9 TWh | May 2004 | Dec 2025 | Natural Gas |
| Yuma Cogeneration Associates | Falcon Power Operating Company | Yuma, AZ | Arizona Public Service Company (AZPS) | 17.6 GWh | Feb 1994 | Oct 2025 | Natural Gas |
| Griffith Energy LLC | Griffith Energy LLC | Golden Valley, AZ | Griffith Energy, LLC (GRIF) | 3.8 TWh | Dec 2001 | Dec 2025 | Natural Gas |
| Desert Basin | Salt River Project | Casa Grande, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.1 TWh | Sep 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) | 2.0 TWh | Feb 2001 | Dec 2025 | Natural Gas |
| Arlington Valley Energy Facility | Arlington Valley LLC | Arlington, AZ | Arlington Valley, LLC (DEAA) | 3.3 TWh | May 2002 | Dec 2025 | Natural Gas |
| Gila River Power Block 4 | Salt River Project | Gila Bend, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.7 TWh | Apr 2003 | Dec 2025 | Natural Gas |
| Red Hawk | Arizona Public Service Co | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 4.8 TWh | Jun 2002 | Dec 2025 | Natural Gas |
| Mesquite Generating Station Block 2 | Mesquite Power LLC | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 4.0 TWh | Nov 2003 | Dec 2025 | Natural Gas |
| Sundance | Arizona Public Service Co | Casa Grande, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 313.1 GWh | Apr 2002 | Dec 2025 | Natural Gas |
| Cogeneration 1 | University of Arizona | Tucson, AZ | Tucson Electric Power (TEPC) | 48.3 GWh | Oct 2002 | Dec 2025 | Natural Gas |
| Black Mountain Generating Station | UNS Electric, Inc | Golden Valley, AZ | Tucson Electric Power (TEPC) | 86.4 GWh | Apr 2008 | Dec 2024 | Natural Gas |
| Coolidge Generation Station | Salt River Project | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 58.8 GWh | Apr 2011 | Dec 2025 | Natural Gas |
| Mesquite Generating Station Block 1 | Salt River Project | Arlington, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 3.5 TWh | May 2003 | Dec 2025 | Natural Gas |
| Gila River Power Block 2 | Salt River Project | Gila Bend, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.9 TWh | May 2003 | Dec 2025 | Natural Gas |
| Copper Crossing Energy and Research Cent | Salt River Project | Florence, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 5.1 GWh | May 2024 | Dec 2024 | Natural Gas |
| Arizona State University CHP | Energy Center Phoenix LLC | Tempe, AZ | Arizona Public Service Company (AZPS) | 40.0 GWh | Mar 2006 | Dec 2025 | Natural Gas |
| Saguaro | Arizona Public Service Co | Red Rock, AZ | Arizona Public Service Company (AZPS) | 135.2 GWh | Apr 1972 | Dec 2024 | Natural Gas |
| West Phoenix | Arizona Public Service Co | Phoenix, AZ | Arizona Public Service Company (AZPS) | 4.3 TWh | Apr 1972 | Dec 2025 | Natural Gas |
| Demoss Petrie | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 2.5 GWh | May 2001 | Dec 2024 | Natural Gas |
| North Loop | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 2.5 GWh | Nov 1972 | Dec 2024 | Natural Gas |
| H Wilson Sundt Generating Station | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 1.9 TWh | Nov 1958 | Nov 2025 | Natural Gas |
| Agua Fria | Salt River Project | Glendale, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 244.3 GWh | Mar 1957 | Dec 2025 | Natural Gas |
| Gila River Power Block 3 | Salt River Project | Gila Bend, AZ | Tucson Electric Power (TEPC) | 2.9 TWh | May 2003 | Dec 2025 | Natural Gas |
| Cogeneration 2 | University of Arizona | Tucson, AZ | Tucson Electric Power (TEPC) | 39.9 GWh | Oct 2002 | Dec 2025 | Natural Gas |
| Ocotillo | Arizona Public Service Co | Tempe, AZ | Arizona Public Service Company (AZPS) | 443.3 GWh | Feb 1960 | Dec 2025 | Natural Gas |
| Gila River Power Block 1 | Salt River Project | Gila Bend, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.6 TWh | Apr 2003 | Dec 2025 | Natural Gas |
| Kyrene | Salt River Project | Tempe, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 1.0 TWh | Jun 1952 | Dec 2025 | Natural Gas |
| University of Arizona - Biosphere 2 | University of Arizona - Biosphere 2 | Oracle, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 53.0 MWh | Oct 1990 | Dec 2024 | Natural Gas : 67.8% Distillate Fuel Oil : 32.2% |
| Apache Station | Arizona Electric Pwr Coop Inc | Cochise, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.2 TWh | Jan 1963 | Dec 2025 | Natural Gas : 81.3% Subbituminous Coal : 18.7% |
| Valencia | UNS Electric, Inc | Nogales, AZ | Tucson Electric Power (TEPC) | 4.8 GWh | Jul 1989 | Dec 2024 | Natural Gas : 96.3% Distillate Fuel Oil : 3.7% |
| Yucca | Arizona Public Service Co | Yuma, AZ | Arizona Public Service Company (AZPS) | 200.1 GWh | Mar 1959 | Dec 2025 | Natural Gas : 98.9% Distillate Fuel Oil : 1.1% |
| Palo Verde | Arizona Public Service Co | Wintersburg, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 31.3 TWh | Dec 1985 | Dec 2025 | Nuclear |
| T0588 Phoenix - AZ | SoCore Energy LLC | Phoenix, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 2.1 GWh | Apr 2017 | Dec 2024 | Solar |
| Kayenta Solar Project | NGI-Kayenta Solar Lessor I, LLC | Kayenta, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 121.0 GWh | Apr 2017 | Dec 2025 | Solar |
| Pima Community College - East Campus | Tesla Inc. | Tucson, AZ | Tucson Electric Power (TEPC) | 2.8 GWh | Jul 2017 | Dec 2024 | Solar |
| Gray Hawk Solar | Gray Hawk Solar, LLC | Kingman, AZ | Tucson Electric Power (TEPC) | 136.8 GWh | May 2018 | Dec 2025 | Solar |
| Iron Horse Battery Storage Hybrid | Big Sky Wind, LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 4.7 GWh | Mar 2017 | Dec 2024 | 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 |
| Pinal Central Energy Center Hybrid | Pinal Central Energy Center, LLC | Casa Grande, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 55.9 GWh | Mar 2018 | Dec 2025 | Solar |
| Sun Streams, LLC | EDP Renewables North America LLC | Arlington, AZ | California Independent System Operator (CISO) | 411.7 GWh | Dec 2019 | Dec 2025 | Solar |
| Intel - Ocotillo Campus Solar | Tesla Inc. | Chandler, AZ | Arizona Public Service Company (AZPS) | 2.3 GWh | Nov 2017 | Dec 2024 | Solar |
| Pima Community College | Tesla Inc. | Tucson, AZ | Tucson Electric Power (TEPC) | 2.1 GWh | Jul 2019 | May 2024 | Solar |
| AZ State University - Tempe Campus Solar | Arizona State University FDM | Tempe, AZ | Arizona Public Service Company (AZPS) | 1.1 GWh | Nov 2003 | Dec 2024 | Solar |
| East Line Solar | AES Distributed Energy | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 254.6 GWh | Nov 2020 | Dec 2025 | Solar |
| Canyon Del Oro High School Solar | Luminace Solar Arizona 2, LLC | Oro Valley, AZ | Tucson Electric Power (TEPC) | 2.4 GWh | Oct 2016 | Dec 2024 | Solar |
| Amphitheater High School Solar | Luminace Solar Arizona 2, LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 1.8 GWh | Nov 2016 | Dec 2024 | Solar |
| Jacobson 5 MW Solar | UNS Electric, Inc | Kingman, AZ | Tucson Electric Power (TEPC) | 9.6 GWh | Feb 2017 | Dec 2024 | Solar |
| White Wing Solar | Leeward Asset Management, LLC | Yuma, AZ | California Independent System Operator (CISO) | 454.0 GWh | Sep 2024 | Dec 2025 | Solar |
| Red Rock | Arizona Public Service Co | Red Rock, AZ | Arizona Public Service Company (AZPS) | 85.9 GWh | Jan 2017 | Dec 2025 | Solar |
| Bonnybrooke PV | Apple, Inc | Florence, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 121.2 GWh | Oct 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 |
| Amazon Goodyear | Westbound Solar 3, LLC | Goodyear, AZ | Arizona Public Service Company (AZPS) | 4.5 GWh | Jun 2023 | Dec 2024 | Solar |
| Mesquite Solar 3, LLC | Consolidated Edison Development Inc. | Tonopah, AZ | California Independent System Operator (CISO) | 443.4 GWh | Nov 2016 | Dec 2025 | Solar |
| Davis Monthan AFB (AZ) West Airfield | MN8 Energy LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 30.2 GWh | Dec 2013 | Dec 2024 | 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 |
| Mohave Electric at Fort Mohave | Mohave Electric Cooperative, Inc. | Fort Mohave, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 9.2 GWh | Mar 2015 | Dec 2024 | Solar |
| Mesquite Solar 2, LLC | Consolidated Edison Development Inc. | Tonopah, AZ | California Independent System Operator (CISO) | 285.5 GWh | Nov 2016 | Dec 2025 | Solar |
| Red Horse III | Red Horse III | Wilcox, AZ | Tucson Electric Power (TEPC) | 52.2 GWh | Jun 2016 | Dec 2024 | Solar |
| Avalon Solar II | Avalon Solar Partners II, LLC | Sahuarita, AZ | Tucson Electric Power (TEPC) | 43.8 GWh | Feb 2016 | Dec 2024 | Solar |
| Estrella Mountain PV | Tesla Inc. | Avondale, AZ | Arizona Public Service Company (AZPS) | 3.8 GWh | May 2019 | Dec 2024 | Solar |
| Harquahala 2 | Copia Power | Tonopah, AZ | Arizona Public Service Company (AZPS) | 647.6 GWh | - | Dec 2025 | Solar |
| McFarland A Solar and Storage | AES Clean Energy | Dateland, AZ | California Independent System Operator (CISO) | 542.3 GWh | Nov 2023 | Dec 2025 | Solar |
| McFarland B Solar and Storage | AES Clean Energy | Dateland, AZ | California Independent System Operator (CISO) | 600.5 GWh | Nov 2024 | Dec 2025 | Solar |
| Harquahala Sun Solar Project | Copia Power | Tonopah, AZ | Arizona Public Service Company (AZPS) | 316.8 GWh | - | Dec 2025 | Solar |
| SR McNeal | SR McNeal, LLC | McNeal, AZ | Tucson Electric Power (TEPC) | 52.8 GWh | Nov 2023 | Dec 2025 | Solar |
| Mohave Energy - Hybrid | Mohave Energy | Fort Mohave, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 45.7 GWh | Aug 2023 | Dec 2025 | Solar |
| Sun Streams 3 | Sun Streams PVS, LLC | Arlington, AZ | Arizona Public Service Company (AZPS) | 493.5 GWh | May 2024 | Dec 2025 | Solar |
| Sun Streams 4 | Sun Streams Expansion, LLC | Tonopah, AZ | Arizona Public Service Company (AZPS) | 647.2 GWh | - | Dec 2025 | Solar |
| Yuma Solar + Storage | Invenergy Services LLC | Fortuna Foothills, AZ | Arizona Public Service Company (AZPS) | 162.4 GWh | - | Dec 2025 | Solar |
| Sonoran Solar Energy | Sonoran Solar Energy, LLC | Buckeye, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 1.1 TWh | Jun 2023 | Dec 2025 | Solar |
| Serrano | Serrano Solar, LLC | Marana, AZ | Arizona Public Service Company (AZPS) | 324.7 GWh | - | Dec 2025 | Solar |
| Brittlebush Solar | Randolph Solar Park LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 562.1 GWh | Oct 2024 | Dec 2025 | Solar |
| TJX Tucson | SoCore Energy LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 2.2 GWh | Jan 2018 | Dec 2024 | Solar |
| Roadrunner Solar and BESS | Clenera LLC | Cochise, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 32.9 GWh | - | Dec 2025 | Solar |
| TJX Phoenix | SoCore Energy LLC | Phoenix, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 5.0 GWh | Dec 2017 | Dec 2024 | Solar |
| Agave | Arizona Public Service Co | Arlington, AZ | Arizona Public Service Company (AZPS) | 346.4 GWh | Aug 2023 | Oct 2025 | Solar |
| Box Canyon (AZ) | BOCA bn, LLC | Florence, AZ | Arizona Public Service Company (AZPS) | 506.9 GWh | - | Dec 2025 | Solar |
| Banner Solar Ironwood | Banner Solar Ironwood LLC | Queen Creek, AZ | Arizona Public Service Company (AZPS) | 3.8 GWh | Nov 2021 | Dec 2024 | Solar |
| Broadway 2 - Tucson Phase II | MN8 Energy LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 2.0 GWh | Nov 2013 | Dec 2024 | Solar |
| Sun Streams 2 | Sun Streams 2, LLC | Hassayampa, AZ | California Independent System Operator (CISO) | 328.2 GWh | May 2021 | Dec 2025 | Solar |
| Saint Solar | Saint Solar LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 284.1 GWh | Dec 2020 | Dec 2025 | Solar |
| Pima Community College NW | Onyx Asset Services Group | Tucson, AZ | Tucson Electric Power (TEPC) | 3.0 GWh | Mar 2019 | Dec 2024 | Solar |
| Mohave Electric Cooperative at Joy Lane | Mohave Electric Cooperative, Inc. | Fort Mohave, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 12.4 GWh | Sep 2016 | Dec 2024 | Solar |
| Amazon TUS2 | SkyHigh 2 Solar | Tucson, AZ | Tucson Electric Power (TEPC) | 5.5 GWh | May 2022 | Dec 2024 | Solar |
| Mesa Carport PV | Apple, Inc | Mesa, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 7.5 GWh | Feb 2020 | Sep 2024 | Solar |
| Wilmot Energy Center LLC | Wilmot Energy Center LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 268.6 GWh | Mar 2021 | Dec 2025 | Solar |
| Central Line Solar, LLC | AES Distributed Energy | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 269.4 GWh | Mar 2022 | Dec 2025 | Solar |
| OE_AZ1 | Onward Energy | Salome, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 80.5 GWh | Nov 2019 | Dec 2025 | Solar |
| Broadway 3 - Tucson Phase I | MN8 Energy LLC | Tucson, AZ | Tucson Electric Power (TEPC) | 1.6 GWh | Feb 2011 | Dec 2024 | Solar |
| Storey Solar and Storage | Storey Energy Center, LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 300.8 GWh | Aug 2023 | Dec 2025 | Solar |
| Mesquite Solar 4, LLC | Consolidated Edison Development Inc. | Tonopah, AZ | California Independent System Operator (CISO) | 144.4 GWh | Dec 2023 | Dec 2025 | Solar |
| Mesquite Solar 5, LLC | Consolidated Edison Development Inc. | Tonopah, AZ | Arizona Public Service Company (AZPS) | 134.4 GWh | Jun 2023 | Dec 2025 | Solar |
| Raptor Ridge | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 33.8 GWh | May 2022 | Dec 2024 | Solar |
| West Line Solar, LLC | West Line Solar, LLC | City of Eloy, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 258.6 GWh | Nov 2022 | Dec 2025 | Solar |
| Eleven Mile Solar Center | Eleven Mile Solar Center, LLC | Coolidge, AZ | Salt River Project Agricultural Improvement and Power District (SRP) | 792.6 GWh | May 2024 | Dec 2025 | Solar |
| Hyder Solar Hybrid | Arizona Public Service Co | Hyder, AZ | Arizona Public Service Company (AZPS) | 35.3 GWh | Oct 2011 | Dec 2024 | Solar |
Browse Power Plants By Arizona Counties
Figures are based on December 2025 generation numbers.| County | State Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Maricopa County, AZ | # 1 | 88 | 79.1 TWh |
| Mohave County, AZ | # 2 | 16 | 9.0 TWh |
| Apache County, AZ | # 3 | 4 | 8.5 TWh |
| Pinal County, AZ | # 4 | 26 | 6.1 TWh |
| Coconino County, AZ | # 5 | 12 | 4.6 TWh |
| Pima County, AZ | # 6 | 39 | 3.0 TWh |
| Yuma County, AZ | # 7 | 17 | 2.7 TWh |
| County | State Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Cochise County, AZ | # 8 | 11 | 2.6 TWh |
| Navajo County, AZ | # 9 | 8 | 1.8 TWh |
| La Paz County, AZ | # 10 | 13 | 111.4 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 |