This is a list of electricity-generating power stations in the U.S. state of Arizona, sorted by type and name. In 2024, Arizona had a net summer capacity of 32.9 GW through all of its power plants, and a net generation of 116,027 GWh. The electrical energy generation mix in 2025 was 45% natural gas, 26.7% nuclear, 13.3% solar, 7.9% coal, 4.2% hydroelectric, 2.7% wind, and 0.2% biomass. Small-scale solar, including customer-owned photovoltaic panels, delivered an additional net 5,785 GWh to the state's electrical grid. This compares as about one-third the amount generated by Arizona's utility-scale solar plants.
Arizona's Palo Verde Nuclear Generating Station located to the west of Phoenix is the nation's largest facility by annual energy production, and is the second largest facility by power capacity after Washington state's Grand Coulee Dam hydroelectric station. The electricity generated by utility- and small-scale solar together surpassed the amount from all of Arizona's hydroelectric facilities for the first time in 2017.
Nuclear power stations Name County Coordinates Capacity(MW) Yearopened Ref Palo Verde Nuclear Generating Station Maricopa County 3,937 1986 (Unit 1- 1,311 MW) 1986 (Unit 2- 1,314 MW) 1988 (Unit 3- 1,312 MW)
Fossil-fuel power stations Data from the U.S. Energy Information Administration serves as a general reference.
Coal + Operating power plants Name County Coordinates Capacity(MW) Yearopened Scheduledretirement Refs Apache Generating Station Cochise County 204 (coal only) 1964 (Unit 1- 82MW)1979 (Unit 2- 204MW)1979 (Unit 3- 204MW) 2018 (Unit 1- ng convert)2018 (Unit 2- ng convert)2027 (Unit 3- ng convert) Coronado Generating Station Apache County 822 1979 (Unit 1- 411MW)1980 (Unit 2- 411MW) 2029 (ng convert) Springerville Generating Station Apache County 1,766 1985 (Unit 1- 425MW)1990 (Unit 2- 425MW)2006 (Unit 3- 458MW)2009 (Unit 4- 458MW) 2027 (Unit 1)2030 (Unit 2 - ng convert)2031 (Unit 3)2029 (Unit 4)
+ Retired power plants Name County Coordinates Capacity(MW) Yearopened Yearclosed Refs Navajo Generating Station Coconino County 2,409 1974 (Unit 1- 803MW)1975 (Unit 2- 803MW)1976 (Unit 3- 803MW) 2019[APS Generation https://www.aps.com/en/ourcompany/generationtransmission/generation/Pages/home.aspx]Cholla Power PlantNavajo County4261962 (Unit 1- 114MW)1978 (Unit 2- 289MW)1980 (Unit 3- 312MW)1981 (Unit 4- 414MW)2025 (Unit 1)2015 (Unit 2 closed)2025 (Unit 3)2020 (Unit 4 closed)
Natural gas Name County Coordinates Capacity(MW) Generationtype Yearopened Refs Agua Fria Generating Station Maricopa County 626 Steam turbine (x3)Simple cycle (x3) 1957/1958/1961 (407MW)1974/1975 (219MW) Apache Generating Station Cochise County 285 (gas only) Steam turbine (x2) 2018(convert from coal) Arlington Valley Plant Maricopa County 69 2x1 combined cycle 2002 Coolidge Generating Station Pinal County 575 Simple cycle (x12) 2011 Desert Basin Power Plant Pinal County 577 2x1 combined cycle 2001 Demoss Petrie Power Plant Pinal County 85 Simple cycle 2001 Gila River Generating Station Maricopa County 2,200 2x1 combined cycle (x4) 2003 Griffith Energy Mohave County 654 2x1 combined cycle 2002 Harquahala Generating Station Maricopa County 1092 1x1 combined cycle (x3) 2004 H. Wilson Sundt Generating Station Pima County 502 Steam turbine (x2)Simple cycle (x2)Reciprocating engine (x5) 1962/1967 (360MW)1972 (48MW)2019 (94MW) Kyrene Power Plant Maricopa County 525 Steam turbine (x2)Simple cycle (x3)1x1 combined cycle 1952/1954 (106MW)1971/1973 (165MW)2002 (254MW) Mesquite Power Plant Maricopa County 1,250 2x1 combined cycle (x2) 2003 North Loop Power Plant Pima County 108 Simple cycle (x4) 1972/2001 Ocotillo Power Plant Maricopa County 916 Simple cycle (x7) 1972/1973/2019 Red Hawk Power Station Maricopa County 1,060 2x1 combined cycle (x2) 2002 Saguaro Power Plant Pinal County 184 Simple cycle (x3) 1972/1973/2002 Santan Power Plant Maricopa County 1,235 Combined cycle (x4)2x1 combined cycle1x1 combined cycle 1974/1975 (376MW)2005 (582MW)2006 (277MW) Sundance Generating Station Pinal County 450 Simple cycle (x10) 2002 Valencia Power Plant Santa Cruz County 108 Simple cycle (x4) 1989/2006 West Phoenix Power Plant Maricopa County 920 Simple cycle (x2)Combined cycle (x3)2x1 combined cycle1x1 combined cycle 1972/1973 (100MW)1976 (255MW)2001 (107MW)2003 (458MW) Yucca Power Plant Yuma County 250 Steam turbineSimple cycle (x5) 1959 (75MW)1971/1973/2008 (176MW) Yuma Power Plant Yuma County 50 1x1 combined cycle 1994
Petroleum Name County Coordinates Capacity(MW) Generationtype Yearopened RefsDouglas Power Plant Cochise County 25 Simple cycle 1972 Yucca Power Plant Yuma County 71 Simple cycle (x2) 1971/1978
Renewable power stations Data from the U.S. Energy Information Administration serves as a general reference.
Biomass & refuse Name County Coordinates Capacity(MW) Fueltype Generationtype Yearopened Refs Glendale Energy Plant Maricopa County 2.8 Landfill gas Reciprocating engine (x2) 2010 Northwest Regional Landfill Maricopa County 3.2 Landfill gas Reciprocating engine (x2) 2012 Novo BioPower Plant Navajo County 22 Wood/ wood waste Steam turbine 2008 Western Renewable Energy Apache County 2.5 Wood/ wood waste Steam turbine 2004
Hydroelectric dams
Name County Coordinates Capacity(MW) Yearopened Refs Arizona Falls Maricopa County 0.75 2003 C.C. Cragin Dam(Blue Ridge) Coconino County 1965 Childs-Irving Hydro Yavapai County 4.2 1916 closed Coolidge Dam Gila County 10 1935 closed Crosscut Hydro Maricopa County 3.0 1939 Davis Dam Mohave County 251 1951 Glen Canyon Dam Coconino County 1,320 1964-1966 Headgate Rock La Paz County 19.5 1993 Hoover Dam Mohave County 2,080 1936-1943/1952 Horse Mesa Dam Maricopa County 129 1927 Mormon Flat Dam Maricopa County 60 1926 Parker Dam La Paz County 120 1938 South Consolidated Hydro Maricopa County 1.4 1981 Stewart Mountain Dam Maricopa County 13 1930 Theodore Roosevelt Dam Gila/Maricopa 36 1973 Generating capacity at Hoover Dam is equally split between Arizona and Nevada. Its total capacity was derated to 1,596 MW in June 2014 due to persistently low water storage levels and projected further declines.
Solar thermal plants
Name County Coordinates Capacity(MW) Yearopened Ref Solana Generating Station Maricopa County 280 2013
Solar photovoltaic plants
Name County Coordinates Capacity(MWAC) Yearopened RefsWilmot Energy Center IIPima County1002026Wilmot Energy CenterPima County32°02'29.6"N 110°53'36.1"W1002021Babocomari SolarCochise County31°39'28.4"N 110°24'34.2"W160February 2026McFarland Solar Yuma County5002023/2025Saint Solar Energy CenterPinal County882023 Mesquite Solar project Maricopa County 400 2012/2016 Agua Caliente Solar Project Yuma County 290 May 2012/2014 Sonoran Solar EnergyMaricopa County2602012 Agave Solar Maricopa County 150 September 25, 2023 Maricopa County 125 April 2013 Saint SolarPinal County100June 2023 Red Horse III Cochise County 81 July 2016 Kayenta Solar Project Navajo County 55 2017/2019 Gray Hawk Solar Mohave County 55 June 2018 Bonnybrooke Solar Mohave County 50 November 2016 Avalon Pima County 45 December 2014/2016 Sandstone Solar Pinal County 45 December 2015 Red Rock Maricopa County 40 February 2017 Foothills Solar Plant Hybrid Yuma County 35 March 2013 Gila Bend Hybrid Maricopa County 32 October 2014 OE_AZ1 La Paz County 32 December 2019 Avra Valley Solar Pima County 26 January 2013 Apache Solar 1 Cochise County 20 October 2017 Copper Crossing Solar Ranch Pinal County 20 2011 Pinal Central Energy Center Hybrid Pinal County 20 April 2018 Sulphur Springs Cochise County 20 December 2016 Chino Solar Valley Yavapai County 19 December 2012 Paloma Solar HybridMaricopa County18September 2011Cotton Center Solar HybridMaricopa County17November 2011Saddle Mountain Solar I Maricopa County15December 2012Desert Star HybridMaricopa County10September 2015Box Canyon Solar ProjectPinal County3002025Eleven Mile Solar CenterPinal County3002024Storey Solar Energy CenterPinal County122December 2023Luke SolarMaricopa County15June 2015Queen Creek Solar FarmMaricopa County19October 2012Badger 1 SolarMaricopa County15November 2013Hyder II HybridYuma County32December 2013Picture Rocks SolarPima County20December 2012Brittlebush Solar ParkPinal County200July 2024
Wind farms
Name County Coordinates Capacity(MW) Yearopened Refs Dry Lake Wind Power Project Navajo County 127 August 2009 Kingman 1 Mohave County 10 September 2011 Perrin Ranch Wind Coconino County 99 January 2012 Red Horse 2 Cochise County 30 August 2015 White Hills Wind Mohave County 350 2021 Babbitt Ranch Energy CenterCoconino County161June 2024
Storage power stations Data from the U.S. Energy Information Administration serves as a general reference.
Battery storage Name County Coordinates Capacity(MWh / MW) Yearopened RefsMcFarland StorageYuma County 1140 / 4352025Storey Solar / BESSPinal County882023Eleven Mile Solar Center BESSPinal County1200 / 3002024Agua Fria Generating StationMaricopa County252021Paloma Solar HybridMaricopa County17April 2023 AES Gilbert ES Maricopa County 10 2019 Iron Horse BESS Hybrid Pima County 10 2017 Pima BESS Pima County 10 2017 Pinal Central Hybrid ES Pima County 10 2018 Desert Star HybridMaricopa County10February 2023 Punkin Center BS Gila County 2 2018 Sonoran Solar EnergyMaricopa County1000 / 2602012 / 2024Sierra Estrella Energy Storage FacilityMaricopa County1000 / 250June 2024Superstition Energy Storage facilityMaricopa County90June 24, 2024Storey Solar Energy CenterPinal County88December 2023Papago StorageMaricopa County1200 / 3002025Scatter Wash Battery Storage CompleMaricopa County1020 / 255April 2025Hyder II HybridYuma County142013Foothills Solar Plant HybridYuma County35April 2023Saint Solar Energy CenterPinal County100Signal Butte / Pediment1000 / 250Mid 2026Flatland Energy Storage ProjectPinal County800 / 2002026
Pumped storage Name Location Coordinates Capacity(MW) Yearopened Refs Horse Mesa Maricopa County 119 1972 Mormon Flat Maricopa County 57 1971 Waddell Maricopa County 40 1993
Utility companies Arizona Electric Power Cooperative Arizona Public Service Salt River Project Tucson Electric Power UniSource Energy Services
See also
List of power stations in the United States
References
External links
U.S. Department of Energy Arizona Statistics U.S. Department of Energy Arizona Quick Facts SRP Power System