List of power stations in Arizona

This is a list of electricity-generating power stations in the U.S. state of Arizona, sorted by type and name. In 2021, Arizona had a net summer capacity of 27,596 MW through all of its power plants, and a net generation of 109,305 GWh.[2] The electrical energy generation mix in 2023 was 47.3% natural gas, 28.2% nuclear, 10.8% coal, 6.6% solar, 5.3% hydroelectric, 1.6% wind, and 0.2% biomass. Small-scale solar, including customer-owned photovoltaic panels, delivered an additional net 4,431 GWh to the state's electrical grid. This compares as about one-half the amount generated by Arizona's utility-scale solar plants.[1]

Sources of Arizona utility-scale electricity generation:
full year 2023[1]

  Natural Gas (47.3%)
  Nuclear (28.2%)
  Coal (10.8%)
  Solar (6.6%)
  Hydroelectric[a] (5.3%)
  Wind (1.6%)
  Biomass (0.2%)

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]

Nuclear power stations

NameCountyCoordinatesCapacity
(MW)
Year
Opened
Ref
Palo Verde Nuclear Generating StationMaricopa County33°23′17″N 112°51′42″W / 33.3881°N 112.8617°W / 33.3881; -112.8617 (Palo Verde)3,9371986 (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.[4]

Coal

Operating power plants
NameCountyCoordinatesCapacity
(MW)
Year
Opened
Scheduled
Retirement
Refs
Apache Generating StationCochise County32°03′37″N 109°53′35″W / 32.0603°N 109.8931°W / 32.0603; -109.8931 (Apache Station)2041964 (Unit 1- 82MW)
1979 (Unit 2- 204MW)
1979 (Unit 3- 204MW)
2018 (Unit 1- ng convert)
2018 (Unit 2- ng convert)
TBD (Unit 3)
[5][6]
Cholla Power PlantNavajo County34°56′22″N 110°18′12″W / 34.9394°N 110.3033°W / 34.9394; -110.3033 (Cholla Power Plant)4261962 (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)
[7][8]
Coronado Generating StationApache County34°34′44″N 109°16′15″W / 34.5789°N 109.2708°W / 34.5789; -109.2708 (Coronado Station)8221979 (Unit 1- 411MW)
1980 (Unit 2- 411MW)
2032 (Unit 1)
2032 (Unit 2)
[9][10]
Springerville Generating StationApache County34°19′07″N 109°09′50″W / 34.3186°N 109.1639°W / 34.3186; -109.1639 (Springerville Station)1,7661985 (Unit 1- 425MW)
1990 (Unit 2- 425MW)
2006 (Unit 3- 458MW)
2009 (Unit 4- 458MW)
2027 (Unit 1)
2032 (Unit 2)
2031 (Unit 3)
TBD (Unit 4)
[11][12][13][14]
Retired power plants
NameCountyCoordinatesCapacity
(MW)
Year
Opened
Year
Closed
Refs
Navajo Generating StationCoconino County36°54′17″N 111°23′19″W / 36.9047°N 111.3886°W / 36.9047; -111.3886 (Navajo Station)2,4091974 (Unit 1- 803MW)
1975 (Unit 2- 803MW)
1976 (Unit 3- 803MW)
2019[15]

Natural gas

NameCountyCoordinatesCapacity
(MW)
Generation
Type
Year
Opened
Refs
Agua Fria Generating StationMaricopa County33°33′22″N 112°12′55″W / 33.5561°N 112.2153°W / 33.5561; -112.2153 (Agua Fria)626Steam Turbine (x3)
Simple Cycle (x3)
1957/1958/1961 (407MW)
1974/1975 (219MW)
[16]
Apache Generating StationCochise County32°03′37″N 109°53′35″W / 32.0603°N 109.8931°W / 32.0603; -109.8931 (Apache)285Steam Turbine (x2)2018
(convert from coal)
[5]
Arlington Valley PlantMaricopa County33°20′30″N 112°53′23″W / 33.3417°N 112.8897°W / 33.3417; -112.8897 (Arlington Valley)692x1 Combined Cycle2002[17][18]
Coolidge Generating StationPinal County32°55′03″N 111°30′12″W / 32.9174°N 111.5033°W / 32.9174; -111.5033 (Coolidge)575Simple Cycle (x12)2011[19]
Desert Basin Power PlantPinal County32°54′15″N 111°47′20″W / 32.9042°N 111.7889°W / 32.9042; -111.7889 (Desert Basin)5772x1 Combined Cycle2001[20]
Demoss Petrie Power PlantPinal County32°15′08″N 110°59′32″W / 32.2523°N 110.9921°W / 32.2523; -110.9921 (Demoss Petrie)85Simple Cycle2001
Gila River Generating StationMaricopa County32°58′30″N 112°41′40″W / 32.9750°N 112.6944°W / 32.9750; -112.6944 (Gila River)2,2002x1 Combined Cycle (x4)2003
Griffith EnergyMohave County35°03′14″N 114°08′00″W / 35.0540°N 114.1333°W / 35.0540; -114.1333 (Griffith Energy)6542x1 Combined Cycle2002[17]
Harquahala Generating StationMaricopa County33°28′34″N 113°06′48″W / 33.4760°N 113.1134°W / 33.4760; -113.1134 (Harquahala)10921x1 Combined Cycle (x3)2004[17]
H. Wilson Sundt Generating StationPima County32°09′36″N 110°54′17″W / 32.1600°N 110.9047°W / 32.1600; -110.9047 (H Wilson Sundt Station)502Steam Turbine (x2)
Simple Cycle (x2)
Reciprocating Engine (x5)
1962/1967 (360MW)
1972 (48MW)
2019 (94MW)
[21]
Kyrene Power PlantMaricopa County33°21′20″N 111°56′07″W / 33.3556°N 111.9353°W / 33.3556; -111.9353 (Kyrene)525Steam Turbine (x2)
Simple Cycle (x3)
1x1 Combined Cycle
1952/1954 (106MW)
1971/1973 (165MW)
2002 (254MW)
[22]
Mesquite Power PlantMaricopa County33°20′42″N 112°51′51″W / 33.3450°N 112.8642°W / 33.3450; -112.8642 (Mesquite)1,2502x1 Combined Cycle (x2)2003[17]
North Loop Power PlantPima County32°24′04″N 111°07′34″W / 32.4010°N 111.1262°W / 32.4010; -111.1262 (North Loop)108Simple Cycle (x4)1972/2001
Ocotillo Power PlantMaricopa County33°25′21″N 111°54′44″W / 33.4225°N 111.9122°W / 33.4225; -111.9122 (Ocotillo)916Simple Cycle (x7)1972/1973/2019[15][23]
Red Hawk Power StationMaricopa County33°20′05″N 112°50′26″W / 33.3346°N 112.8406°W / 33.3346; -112.8406 (Red Hawk)1,0602x1 Combined Cycle (x2)2002[15][17]
Saguaro Power PlantPinal County32°33′06″N 111°18′00″W / 32.5517°N 111.3000°W / 32.5517; -111.3000 (Saguaro)184Simple Cycle (x3)1972/1973/2002[15]
Santan Power PlantMaricopa County33°19′57″N 111°45′01″W / 33.3325°N 111.7503°W / 33.3325; -111.7503 (Santan)1,235Combined Cycle (x4)
2x1 Combined Cycle
1x1 Combined Cycle
1974/1975 (376MW)
2005 (582MW)
2006 (277MW)
[17]
Sundance Generating StationPinal County32°55′43″N 111°35′24″W / 32.9285°N 111.5899°W / 32.9285; -111.5899 (Sundance)450Simple Cycle (x10)2002[15][24]
Valencia Power PlantSanta Cruz County31°21′49″N 110°55′53″W / 31.3635°N 110.9313°W / 31.3635; -110.9313 (Valencia)108Simple Cycle (x4)1989/2006
West Phoenix Power PlantMaricopa County33°26′30″N 112°09′30″W / 33.4417°N 112.1583°W / 33.4417; -112.1583 (West Phoenix)920Simple Cycle (x2)
Combined Cycle (x3)
2x1 Combined Cycle
1x1 Combined Cycle
1972/1973 (100MW)
1976 (255MW)
2001 (107MW)
2003 (458MW)
[15]
Yucca Power PlantYuma County32°43′17″N 114°42′38″W / 32.7214°N 114.7106°W / 32.7214; -114.7106 (Yucca)250Steam Turbine
Simple Cycle (x5)
1959 (75MW)
1971/1973/2008 (176MW)
[15][25]
Yuma Power PlantYuma County32°43′44″N 114°39′15″W / 32.7288°N 114.6541°W / 32.7288; -114.6541 (Yuma)501x1 Combined Cycle1994[17][26]

Petroleum

NameCountyCoordinatesCapacity
(MW)
Generation
Type
Year
Opened
Refs
Douglas Power PlantCochise County31°21′51″N 109°33′14″W / 31.3641°N 109.5538°W / 31.3641; -109.5538 (Douglas)25Simple Cycle1972[15]
Yucca Power PlantYuma County32°43′17″N 114°42′38″W / 32.7214°N 114.7106°W / 32.7214; -114.7106 (Yucca)71Simple Cycle (x2)1971/1978[15]

Renewable power stations

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

Biomass & Refuse

NameCountyCoordinatesCapacity
(MW)
Fuel
Type
Generation
Type
Year
Opened
Refs
Glendale Energy PlantMaricopa County33°32′25″N 112°18′23″W / 33.5403°N 112.3064°W / 33.5403; -112.3064 (Glendale Landfill)2.8landfill gasReciprocating Engine (x2)2010[27]
Northwest Regional LandfillMaricopa County33°40′55″N 112°28′36″W / 33.6819°N 112.4767°W / 33.6819; -112.4767 (Northwest Regional Landfill)3.2landfill gasReciprocating Engine (x2)2012[28]
Novo BioPower PlantNavajo County34°30′12″N 110°20′06″W / 34.5032°N 110.3350°W / 34.5032; -110.3350 (Novo BioPower)22wood/ wood wasteSteam Turbine2008[29]
Western Renewable EnergyApache County34°05′35″N 109°17′24″W / 34.0930°N 109.2900°W / 34.0930; -109.2900 (Western RE Biomass)2.5wood/ wood wasteSteam Turbine2004[30]

Hydroelectric dams

NameCountyCoordinatesCapacity
(MW)
Year
Opened
Refs
Arizona FallsMaricopa County33°29′24″N 111°57′32″W / 33.4899°N 111.9589°W / 33.4899; -111.9589 (Arizona Falls Hydro)0.752003[22]
C.C. Cragin Dam
(Blue Ridge)
Coconino County34°33′16″N 111°11′50″W / 34.55444°N 111.19722°W / 34.55444; -111.19722 (C.C. Cragin Hydro)1965[22]
Childs-Irving HydroYavapai County34°21′04″N 111°42′02″W / 34.3511°N 111.7006°W / 34.3511; -111.7006 (Childs-Irving Hydro)4.21916closed
Coolidge DamGila County33°10′29″N 110°31′40″W / 33.1747°N 110.5279°W / 33.1747; -110.5279 (Coolidge Hydro)101935closed
Crosscut HydroMaricopa County33°26′22″N 111°56′46″W / 33.4394°N 111.9461°W / 33.4394; -111.9461 (Crosscut Hydro)3.01939[22]
Davis DamMohave County35°11′49″N 114°34′15″W / 35.1970°N 114.5707°W / 35.1970; -114.5707 (Davis Hydro)2511951
Glen Canyon DamCoconino County36°56′12″N 111°29′02″W / 36.9366°N 111.4839°W / 36.9366; -111.4839 (Glen Canyon Hydro)1,3201964-1966[31]
Headgate RockLa Paz County34°10′06″N 114°16′39″W / 34.1683°N 114.2774°W / 34.1683; -114.2774 (Headgate Rock Hydro)19.51993
Hoover DamMohave County36°00′56″N 114°44′17″W / 36.0155°N 114.7380°W / 36.0155; -114.7380 (Hoover Dam Hydro)2,080[A]1936-1943/
1952
Horse Mesa DamMaricopa County33°35′27″N 111°20′38″W / 33.5907°N 111.3440°W / 33.5907; -111.3440 (Horse Mesa Hydro)1291927[22]
Mormon Flat DamMaricopa County33°33′13″N 111°26′35″W / 33.5536°N 111.4431°W / 33.5536; -111.4431 (Mormon Flat Hydro)601926[22]
Parker DamLa Paz County34°17′43″N 114°08′25″W / 34.2953°N 114.1402°W / 34.2953; -114.1402 (Parker Dam Hydro)1201938
South Consolidated HydroMaricopa County33°27′59″N 111°46′52″W / 33.4665°N 111.7811°W / 33.4665; -111.7811 (South Consolidated Hydro)1.41981[22]
Stewart Mountain DamMaricopa County33°33′58″N 111°32′10″W / 33.5661°N 111.5360°W / 33.5661; -111.5360 (Stewart Mountain Hydro)131930[22]
Theodore Roosevelt DamGila/Maricopa33°40′16″N 111°09′42″W / 33.6711°N 111.1618°W / 33.6711; -111.1618 (Roosevelt Hydro)361973[22]

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.[32][33]

Solar thermal plants

NameCountyCoordinatesCapacity
(MW)
Year
Opened
Ref
Solana Generating StationMaricopa County32°55′20″N 112°57′21″W / 32.9223°N 112.9559°W / 32.9223; -112.9559 (Solana Solar Station)2802013[34]

Solar photovoltaic plants

NameCountyCoordinatesCapacity
(MWAC)
Year
Opened
Refs
McFarland SolarYuma County32°56′15″N 113°28′15″W / 32.9376°N 113.4708°W / 32.9376; -113.47085002023/2025
Mesquite Solar projectMaricopa County33°20′24″N 112°56′02″W / 33.3399°N 112.9339°W / 33.3399; -112.9339 (Mesquite Solar)4002012/2016
Agua Caliente Solar ProjectYuma County32°58′39″N 113°29′40″W / 32.9774°N 113.4945°W / 32.9774; -113.4945 (Agua Caliente Solar)2902012/2014
Sonoran Solar ProjectMaricopa County33°14′34″N 112°32′28″E / 33.2429°N 112.5411°E / 33.2429; 112.54112602012[35]
Agave SolarMaricopa County33°19′33″N 112°50′32″W / 33.3259°N 112.8422°W / 33.3259; -112.8422 (Agave Solar)150September 25, 2023[36]
Arlington Valley Solar Energy II [ru]Maricopa County33°18′18″N 112°50′02″W / 33.3050°N 112.8339°W / 33.3050; -112.8339 (Arlington Valley Solar)1252013[37]
Saint SolarPinal County32°51′51″N 111°30′03″W / 32.8643°N 111.5007°W / 32.8643; -111.5007100June 2023[38]
Red HorseCochise County32°15′40″N 110°09′15″W / 32.2610°N 110.1543°W / 32.2610; -110.1543 (Red Horse Solar)812015/2016[39]
Kayenta Solar ProjectNavajo County36°47′21″N 110°14′18″W / 36.7893°N 110.2383°W / 36.7893; -110.2383 (Kayenta Solar)552017/2019[40]
Gray Hawk SolarMohave County35°20′46″N 113°54′53″W / 35.3462°N 113.9148°W / 35.3462; -113.9148 (Gray Hawk Solar)552018[41]
Bonnybrooke SolarMohave County33°03′11″N 111°20′24″W / 33.0530°N 111.3400°W / 33.0530; -111.3400 (Bonnybrooke Solar)502016[42]
AvalonPima County32°02′19″N 110°57′30″W / 32.0385°N 110.9584°W / 32.0385; -110.9584 (Avalon Solar)452014/2016
Sandstone SolarPinal County33°02′08″N 111°27′01″W / 33.0356°N 111.4503°W / 33.0356; -111.4503 (Sandstone Solar)452015
Red RockMaricopa County32°33′04″N 111°17′21″W / 32.5510°N 111.2892°W / 32.5510; -111.2892 (Red Rock Solar)402017
FoothillsYuma County32°38′20″N 114°25′52″W / 32.6388°N 114.4312°W / 32.6388; -114.4312 (Foothills Solar)352013
Gila BendMaricopa County32°56′56″N 112°46′12″W / 32.9490°N 112.7701°W / 32.9490; -112.7701 (Gila Bend Hybrid)322014
OE_AZ1La Paz County33°46′15″N 113°39′17″W / 33.7709°N 113.6546°W / 33.7709; -113.6546 (OE_AZ1 Solar)322019
Avra ValleyPima County32°22′18″N 111°16′58″W / 32.3717°N 111.2828°W / 32.3717; -111.2828 (Avra Valley Solar)262013
ApacheCochise County32°04′05″N 109°53′25″W / 32.0681°N 109.8904°W / 32.0681; -109.8904 (Apache Solar)202017
Copper Crossing Solar RanchPinal County33°09′33″N 111°28′53″W / 33.1592°N 111.4814°W / 33.1592; -111.4814 (Copper Crossing Solar)202011[43]
Picture RocksPima County32°22′11″N 111°14′34″W / 32.3697°N 111.2428°W / 32.3697; -111.2428 (Picture Rocks Solar)202012
Pinal Central Energy CenterPinal County32°52′33″N 111°33′04″W / 32.8757°N 111.5511°W / 32.8757; -111.5511 (Pinal CEC Solar)202018[44]
Sulphur SpringsCochise County32°03′46″N 109°55′09″W / 32.0628°N 109.9193°W / 32.0628; -109.9193 (Sulphur Springs Solar)202016
Chino Solar ValleyYavapai County34°43′27″N 112°25′54″W / 34.7242°N 112.4318°W / 34.7242; -112.4318 (Chino Solar Valley)192012
Queen Creek SolarMaricopa County33°16′03″N 111°36′44″W / 33.2675°N 111.6122°W / 33.2675; -111.6122 (Queen Creek Solar)192012
Paloma Solar HybridMaricopa County33°01′15″N 112°39′42″W / 33.0209°N 112.6616°W / 33.0209; -112.6616182011
Cotton Center Solar HybridMaricopa County33°02′06″N 112°39′39″W / 33.0351°N 112.6607°W / 33.0351; -112.6607172013
Saddle Mountain Solar IMaricopa County33°22′52″N 113°11′05″W / 33.38107°N 113.18471°W / 33.38107; -113.18471152012[45]
Desert Star HybridMaricopa County33°08′38″N 112°39′47″W / 33.14397°N 112.66304°W / 33.14397; -112.6630410September 2015[46]
Box Canyon Solar ProjectPinal County33°05′50″N 111°16′42″W / 33.0972°N 111.2783°W / 33.0972; -111.27833002025[47]
Eleven Mile Solar CenterPinal County32°51′40″N 111°35′20″W / 32.86115°N 111.58893°W / 32.86115; -111.588933002024[48]
Storey Solar Energy CenterPinal County32°53′00″N 111°30′30″W / 32.88321°N 111.50827°W / 32.88321; -111.5082788December 2023[49]

[50]

Wind farms

NameCountyCoordinatesCapacity
(MW)
Year
Opened
Refs
Dry Lake Wind Power ProjectNavajo County34°39′35″N 110°17′03″W / 34.6596°N 110.2842°W / 34.6596; -110.2842 (Dry Lake Wind)1272009/2010
Kingman WindMohave County35°08′45″N 114°04′03″W / 35.1458°N 114.0675°W / 35.1458; -114.0675 (Kingman Wind)102011[51]
Perrin Ranch WindCoconino County35°24′56″N 112°16′16″W / 35.4156°N 112.2711°W / 35.4156; -112.2711 (Perrin Ranch Wind)992012[52]
Red Horse WindCochise County32°17′10″N 110°05′17″W / 32.2861°N 110.0881°W / 32.2861; -110.0881 (Red Horse Wind)302015[53]
White Hills WindMohave County35°28′24″N 114°17′21″W / 35.47326°N 114.2892°W / 35.47326; -114.2892 (White Hills Wind)3502021[54]
Babbitt Ranch Energy CenterCoconino County35°38′33″N 112°05′36″W / 35.6425°N 112.0932°W / 35.6425; -112.0932161June 2024[55][56]

Storage power stations

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

Battery storage

NameCountyCoordinatesDischarge
Capacity
(MW)
Year
Opened
Refs
McFarland StorageYuma County32°56′15″N 113°28′15″W / 32.9376°N 113.4708°W / 32.9376; -113.47084352025[1]
Agua Fria Generating StationMaricopa County33°33′12″N 112°12′45″W / 33.55340°N 112.21263°W / 33.55340; -112.21263252021[57]
Paloma Solar HybridMaricopa County33°01′29″N 112°39′31″W / 33.02481°N 112.65867°W / 33.02481; -112.6586717
AES Gilbert ESMaricopa County33°26′48″N 111°57′23″W / 33.4468°N 111.9563°W / 33.4468; -111.9563 (AES Gilbert ES)102019[58]
Iron Horse BESS HybridPima County32°05′55″N 110°49′09″W / 32.0985°N 110.8191°W / 32.0985; -110.8191 (Iron Horse BESS)102017[59][60]
Pima BESSPima County32°15′06″N 110°59′29″W / 32.2516°N 110.9913°W / 32.2516; -110.9913 (Pima BESS)102017[60]
Pinal Central Hybrid ESPima County32°52′33″N 111°33′04″W / 32.8757°N 111.5511°W / 32.8757; -111.5511 (Pinal Central ES)102018[44]
Desert Star HybridMaricopa County33°08′42″N 112°39′35″W / 33.14512°N 112.65962°W / 33.14512; -112.6596210
Punkin Center BSGila County33°52′33″N 111°18′49″W / 33.8758°N 111.3136°W / 33.8758; -111.3136 (Punkin Center BS)22018[61]
Sonoran Solar EnergyMaricopa County33°14′20″N 112°34′18″W / 33.23900°N 112.57154°W / 33.23900; -112.571542502012[62]
Sierra Estrella Energy Storage FacilityMaricopa County33°24′38″N 112°18′51″W / 33.41056°N 112.31426°W / 33.41056; -112.31426250June 2024[63][64]
Superstition Energy Storage facilityMaricopa County33°21′32″N 111°49′51″W / 33.35891°N 111.83095°W / 33.35891; -111.8309590June 24 2024[65][66]
Storey Solar Energy CenterPinal County32°53′00″N 111°30′31″W / 32.8832°N 111.5087°W / 32.8832; -111.508788December 2023[67]
Papago StorageMaricopa County2025[68][69]
Scatter Wash Battery Storage CompleMaricopa County255April 2025[70][71]

Pumped storage

NameLocationCoordinatesCapacity
(MW)
Year
Opened
Refs
Horse MesaMaricopa County33°35′27″N 111°20′38″W / 33.5907°N 111.3440°W / 33.5907; -111.3440 (Horse Mesa PS)1191972[22]
Mormon FlatMaricopa County33°33′13″N 111°26′35″W / 33.5536°N 111.4431°W / 33.5536; -111.4431 (Mormon Flat PS)571971[22]
WaddellMaricopa County33°50′41″N 112°16′17″W / 33.8447°N 112.2714°W / 33.8447; -112.2714 (Waddell PS)401993[72]

Utility companies

Notes

References