List of power stations in Arizona

From Wikipedia, the free encyclopedia

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.[2] 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.[1]

Sources of Arizona utility-scale electricity generation in gigawatt-hours, full-year 2025:[1]
  1. Natural gas: 52,728 (45.0%)
  2. Nuclear: 31,322 (26.7%)
  3. Solar: 15,614 (13.3%)
  4. Coal: 9,219 (7.87%)
  5. Hydroelectric: 4,939 (4.21%)
  6. Wind: 3,150 (2.69%)
  7. Biomass: 213 (0.18%)

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.[3]

Arizona electricity production by type
Arizona power grid
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Nuclear power stations

More information Name, County ...
NameCountyCoordinatesCapacity
(MW)		Year
opened		Ref
Palo Verde Nuclear Generating StationMaricopa County33°23′17″N 112°51′42″W3,9371986 (Unit 1- 1,311 MW)
1986 (Unit 2- 1,314 MW)
1988 (Unit 3- 1,312 MW)
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Fossil-fuel power stations

Data from the U.S. Energy Information Administration serves as a general reference.[4]

Coal

More information Name, County ...
Operating power plants
Name County Coordinates Capacity
(MW)		 Year
opened		 Scheduled
retirement		 Refs
Apache Generating Station Cochise County 32°03′37″N 109°53′35″W 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)		 [5][6]
Coronado Generating Station Apache County 34°34′44″N 109°16′15″W 822 1979 (Unit 1- 411MW)
1980 (Unit 2- 411MW)		 2029 (ng convert) [7][8][9]
Springerville Generating Station Apache County 34°19′07″N 109°09′50″W 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)		 [10][11][12][13][14][15]
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More information Name, County ...
Retired power plants
Name County Coordinates Capacity
(MW)		 Year
opened		 Year
closed		 Refs
Navajo Generating Station Coconino County 36°54′17″N 111°23′19″W 2,409 1974 (Unit 1- 803MW)
1975 (Unit 2- 803MW)
1976 (Unit 3- 803MW)		 2019 [16]
Cholla Power Plant Navajo County 34°56′22″N 110°18′12″W 426 1962 (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)		 [17][18]
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Natural gas

More information Name, County ...
NameCountyCoordinatesCapacity
(MW)		Generation
type		Year
opened		Refs
Agua Fria Generating StationMaricopa County33°33′22″N 112°12′55″W626Steam turbine (x3)
Simple cycle (x3)		1957/1958/1961 (407MW)
1974/1975 (219MW)		[19]
Apache Generating StationCochise County32°03′37″N 109°53′35″W285 (gas only)Steam turbine (x2)2018
(convert from coal)		[5]
Arlington Valley PlantMaricopa County33°20′30″N 112°53′23″W692x1 combined cycle2002[20][21]
Coolidge Generating StationPinal County32°55′03″N 111°30′12″W575Simple cycle (x12)2011[22]
Desert Basin Power PlantPinal County32°54′15″N 111°47′20″W5772x1 combined cycle2001[23]
Demoss Petrie Power PlantPinal County32°15′08″N 110°59′32″W85Simple cycle2001
Gila River Generating StationMaricopa County32°58′30″N 112°41′40″W2,2002x1 combined cycle (x4)2003
Griffith EnergyMohave County35°03′14″N 114°08′00″W6542x1 combined cycle2002[20]
Harquahala Generating StationMaricopa County33°28′34″N 113°06′48″W10921x1 combined cycle (x3)2004[20]
H. Wilson Sundt Generating Station Pima County32°09′36″N 110°54′17″W502Steam turbine (x2)
Simple cycle (x2)
Reciprocating engine (x5)		1962/1967 (360MW)
1972 (48MW)
2019 (94MW)		[24]
Kyrene Power PlantMaricopa County33°21′20″N 111°56′07″W525Steam turbine (x2)
Simple cycle (x3)
1x1 combined cycle		1952/1954 (106MW)
1971/1973 (165MW)
2002 (254MW)		[25]
Mesquite Power PlantMaricopa County33°20′42″N 112°51′51″W1,2502x1 combined cycle (x2)2003[20]
North Loop Power PlantPima County32°24′04″N 111°07′34″W108Simple cycle (x4)1972/2001
Ocotillo Power PlantMaricopa County33°25′21″N 111°54′44″W916Simple cycle (x7)1972/1973/2019[16][26]
Red Hawk Power StationMaricopa County33°20′05″N 112°50′26″W1,0602x1 combined cycle (x2)2002[16][20]
Saguaro Power PlantPinal County32°33′06″N 111°18′00″W184Simple cycle (x3)1972/1973/2002[16]
Santan Power PlantMaricopa County33°19′57″N 111°45′01″W1,235Combined cycle (x4)
2x1 combined cycle
1x1 combined cycle		1974/1975 (376MW)
2005 (582MW)
2006 (277MW)		[20]
Sundance Generating StationPinal County32°55′43″N 111°35′24″W450Simple cycle (x10)2002[16][27]
Valencia Power PlantSanta Cruz County31°21′49″N 110°55′53″W108Simple cycle (x4)1989/2006
West Phoenix Power PlantMaricopa County33°26′30″N 112°09′30″W920Simple cycle (x2)
Combined cycle (x3)
2x1 combined cycle
1x1 combined cycle		1972/1973 (100MW)
1976 (255MW)
2001 (107MW)
2003 (458MW)		[16]
Yucca Power PlantYuma County32°43′17″N 114°42′38″W250Steam turbine
Simple cycle (x5)		1959 (75MW)
1971/1973/2008 (176MW)		[16][28]
Yuma Power PlantYuma County32°43′44″N 114°39′15″W501x1 combined cycle1994[20][29]
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Petroleum

More information Name, County ...
NameCountyCoordinatesCapacity
(MW)		Generation
type		Year
opened		Refs
Douglas Power PlantCochise County31°21′51″N 109°33′14″W25Simple cycle1972[16]
Yucca Power PlantYuma County32°43′17″N 114°42′38″W71Simple cycle (x2)1971/1978[16]
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Renewable power stations

Data from the U.S. Energy Information Administration serves as a general reference.[4]

Biomass & refuse

More information Name, County ...
Name County Coordinates Capacity
(MW)		 Fuel
type		 Generation
type		 Year
opened		 Refs
Glendale Energy Plant Maricopa County 33°32′25″N 112°18′23″W 2.8 Landfill gas Reciprocating engine (x2) 2010 [30]
Northwest Regional Landfill Maricopa County 33°40′55″N 112°28′36″W 3.2 Landfill gas Reciprocating engine (x2) 2012 [31]
Novo BioPower Plant Navajo County 34°30′12″N 110°20′06″W 22 Wood/ wood waste Steam turbine 2008 [32]
Western Renewable Energy Apache County 34°05′35″N 109°17′24″W 2.5 Wood/ wood waste Steam turbine 2004 [33]
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Hydroelectric dams

See also: List of dams and reservoirs in Arizona
More information Name, County ...
NameCountyCoordinatesCapacity
(MW)		Year
opened		Refs
Arizona FallsMaricopa County33°29′24″N 111°57′32″W0.752003[25]
C.C. Cragin Dam
(Blue Ridge)		Coconino County34°33′16″N 111°11′50″W1965[25]
Childs-Irving HydroYavapai County34°21′04″N 111°42′02″W4.21916closed
Coolidge DamGila County33°10′29″N 110°31′40″W101935closed
Crosscut HydroMaricopa County33°26′22″N 111°56′46″W3.01939[25]
Davis DamMohave County35°11′49″N 114°34′15″W2511951
Glen Canyon DamCoconino County36°56′12″N 111°29′02″W1,3201964-1966[34]
Headgate RockLa Paz County34°10′06″N 114°16′39″W19.51993
Hoover DamMohave County36°00′56″N 114°44′17″W2,080[A]1936-1943/
1952
Horse Mesa DamMaricopa County33°35′27″N 111°20′38″W1291927[25]
Mormon Flat DamMaricopa County33°33′13″N 111°26′35″W601926[25]
Parker DamLa Paz County34°17′43″N 114°08′25″W1201938
South Consolidated HydroMaricopa County33°27′59″N 111°46′52″W1.41981[25]
Stewart Mountain DamMaricopa County33°33′58″N 111°32′10″W131930[25]
Theodore Roosevelt DamGila/Maricopa33°40′16″N 111°09′42″W361973[25]
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A Generating capacity at Hoover Dam is equally split between Arizona and Nevada.[4] Its total capacity was derated to 1,596 MW in June 2014 due to persistently low water storage levels and projected further declines.[35][36]

Solar thermal plants

See also: Solar power in Arizona
More information Name, County ...
NameCountyCoordinatesCapacity
(MW)		Year
opened		Ref
Solana Generating StationMaricopa County32°55′20″N 112°57′21″W2802013[37]
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Solar photovoltaic plants

See also: Solar power in Arizona
More information Name, County ...
NameCountyCoordinatesCapacity
(MWAC)		Year
opened		Refs
Wilmot Energy Center II Pima County 100 2026
Wilmot Energy Center Pima County 32°02'29.6"N 110°53'36.1"W 100 2021
Babocomari Solar Cochise County 31°39'28.4"N 110°24'34.2"W 160 February 2026
McFarland Solar Yuma County 32.9376°N 113.4708°W / 32.9376; -113.4708 500 2023/2025
Saint Solar Energy Center Pinal County 32.88297°N 111.50855°W / 32.88297; -111.50855 88 2023 [38]
Mesquite Solar projectMaricopa County33°20′24″N 112°56′02″W4002012/2016
Agua Caliente Solar ProjectYuma County32°58′39″N 113°29′40″W290May 2012/2014[39]
Sonoran Solar Energy Maricopa County 33.2425°N 112.5418°W / 33.2425; -112.5418 260 2012 [40]
Agave SolarMaricopa County33°19′33″N 112°50′32″W150September 25, 2023[41][42]
Arlington Valley Solar Energy II [ru]Maricopa County33°18′18″N 112°50′02″W125April 2013[43]
Saint Solar Pinal County 32.8643°N 111.5007°W / 32.8643; -111.5007 100 June 2023 [44]
Red Horse IIICochise County32°15′40″N 110°09′15″W81July 2016[45]
Kayenta Solar ProjectNavajo County36°47′21″N 110°14′18″W552017/2019[46]
Gray Hawk SolarMohave County35°20′46″N 113°54′53″W55June 2018[47]
Bonnybrooke SolarMohave County33°03′11″N 111°20′24″W50November 2016[48]
AvalonPima County32°02′19″N 110°57′30″W45December 2014/2016
Sandstone SolarPinal County33°02′08″N 111°27′01″W45December 2015[49]
Red RockMaricopa County32°33′04″N 111°17′21″W40February 2017[50]
Foothills Solar Plant HybridYuma County32°38′20″N 114°25′52″W35March 2013[51]
Gila Bend HybridMaricopa County32°56′56″N 112°46′12″W32October 2014[52]
OE_AZ1La Paz County33°46′15″N 113°39′17″W32December 2019[53]
Avra Valley SolarPima County32°22′18″N 111°16′58″W26January 2013[54]
Apache Solar 1Cochise County32°04′05″N 109°53′25″W20October 2017[55]
Copper Crossing Solar RanchPinal County33°09′33″N 111°28′53″W202011[56]
Pinal Central Energy Center HybridPinal County32°52′33″N 111°33′04″W20April 2018[57]
Sulphur SpringsCochise County32°03′46″N 109°55′09″W20December 2016[58]
Chino Solar ValleyYavapai County34°43′27″N 112°25′54″W19December 2012[59]
Paloma Solar Hybrid Maricopa County 33.0209°N 112.6616°W / 33.0209; -112.6616 18 September 2011 [60]
Cotton Center Solar Hybrid Maricopa County 33.0351°N 112.6607°W / 33.0351; -112.6607 17 November 2011 [61]
Saddle Mountain Solar I Maricopa County 33.38107°N 113.18471°W / 33.38107; -113.18471 15 December 2012 [62]
Desert Star Hybrid Maricopa County 33.14397°N 112.66304°W / 33.14397; -112.66304 10 September 2015 [63]
Box Canyon Solar Project Pinal County 33.0972°N 111.2783°W / 33.0972; -111.2783 300 2025 [64]
Eleven Mile Solar Center Pinal County 32.86115°N 111.58893°W / 32.86115; -111.58893 300 2024 [65]
Storey Solar Energy Center Pinal County 32.88321°N 111.50827°W / 32.88321; -111.50827 122 December 2023 [66][67]
Luke Solar Maricopa County 33.5268°N 112.3807°W / 33.5268; -112.3807 15 June 2015 [68]
Queen Creek Solar Farm Maricopa County 33.26678°N 111.61353°W / 33.26678; -111.61353 19 October 2012 [69]
Badger 1 Solar Maricopa County 33.4981°N 112.8131°W / 33.4981; -112.8131 15 November 2013 [70]
Hyder II Hybrid Yuma County 33.0256°N 113.3535°W / 33.0256; -113.3535 32 December 2013 [71]
Picture Rocks Solar Pima County 32.37066°N 111.24242°W / 32.37066; -111.24242 20 December 2012 [72]
Brittlebush Solar Park Pinal County 32.965°N 111.5331°W / 32.965; -111.5331 200 July 2024 [73]
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Wind farms

See also: Wind power in Arizona
More information Name, County ...
NameCountyCoordinatesCapacity
(MW)		Year
opened		Refs
Dry Lake Wind Power ProjectNavajo County34°39′35″N 110°17′03″W127August 2009[74]
Kingman 1Mohave County35°08′45″N 114°04′03″W10September 2011[75]
Perrin Ranch WindCoconino County35°24′56″N 112°16′16″W99January 2012[76]
Red Horse 2Cochise County32°17′10″N 110°05′17″W30August 2015[77]
White Hills WindMohave County35°28′24″N 114°17′21″W3502021[78]
Babbitt Ranch Energy Center Coconino County 35.6425°N 112.0932°W / 35.6425; -112.0932 161 June 2024 [79][80]
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Storage power stations

Data from the U.S. Energy Information Administration serves as a general reference.[4]

Battery storage

More information Name, County ...
NameCountyCoordinatesCapacity
(MWh / MW)		Year
opened		Refs
McFarland Storage Yuma County 32.9376°N 113.4708°W / 32.9376; -113.4708 1140 / 435 2025 [81]
Storey Solar / BESS Pinal County 32.88297°N 111.50855°W / 32.88297; -111.50855 88 2023 [66]
Eleven Mile Solar Center BESS Pinal County 32.86115°N 111.58893°W / 32.86115; -111.58893 1200 / 300 2024 [82]
Agua Fria Generating Station Maricopa County 33.55340°N 112.21263°W / 33.55340; -112.21263 25 2021 [83]
Paloma Solar Hybrid Maricopa County 33.02481°N 112.65867°W / 33.02481; -112.65867 17 April 2023 [84]
AES Gilbert ESMaricopa County33°26′48″N 111°57′23″W102019[85]
Iron Horse BESS HybridPima County32°05′55″N 110°49′09″W102017[86][87]
Pima BESSPima County32°15′06″N 110°59′29″W102017[87]
Pinal Central Hybrid ESPima County32°52′33″N 111°33′04″W102018[57]
Desert Star Hybrid Maricopa County 33.14512°N 112.65962°W / 33.14512; -112.65962 10 February 2023 [88]
Punkin Center BSGila County33°52′33″N 111°18′49″W22018[89]
Sonoran Solar Energy Maricopa County 33.23900°N 112.57154°W / 33.23900; -112.57154 1000 / 260 2012 / 2024 [90][91][92]
Sierra Estrella Energy Storage Facility Maricopa County 33.41056°N 112.31426°W / 33.41056; -112.31426 1000 / 250 June 2024 [93][94]
Superstition Energy Storage facility Maricopa County 33.35891°N 111.83095°W / 33.35891; -111.83095 90 June 24, 2024 [93][95]
Storey Solar Energy Center Pinal County 32.8832°N 111.5087°W / 32.8832; -111.5087 88 December 2023 [66][67]
Papago Storage Maricopa County 33.483062°N 113.038630°W / 33.483062; -113.038630 1200 / 300 2025 [96][97][98]
Scatter Wash Battery Storage Comple Maricopa County 33.711025°N 112.081559°W / 33.711025; -112.081559 1020 / 255 April 2025 [99][100]
Hyder II Hybrid Yuma County 33.0259°N 113.3521°W / 33.0259; -113.3521 14 2013 [71]
Foothills Solar Plant Hybrid Yuma County 32.6389°N 114.4313°W / 32.6389; -114.4313 35 April 2023 [51]
Saint Solar Energy Center Pinal County 32.869459°N 111.512148°W / 32.869459; -111.512148 100 [101]
Signal Butte / Pediment 1000 / 250 Mid 2026 [102][103]
Flatland Energy Storage Project Pinal County 32.919705°N 111.503833°W / 32.919705; -111.503833 800 / 200 2026 [104][105]
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Pumped storage

More information Name, Location ...
NameLocationCoordinatesCapacity
(MW)		Year
opened		Refs
Horse MesaMaricopa County33°35′27″N 111°20′38″W1191972[25]
Mormon FlatMaricopa County33°33′13″N 111°26′35″W571971[25]
WaddellMaricopa County33°50′41″N 112°16′17″W401993[106]
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Utility companies

See also

References

External links

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