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 2023, Arizona had a net summer capacity of 29,885 MW through all of its power plants, and a net generation of 111,838 GWh.^[2] The electrical energy generation mix in 2024 was 47.5% natural gas, 27.9% nuclear, 9.3% solar, 8.5% coal, 4.6% hydroelectric, 2.2% wind, and 0.2% biomass. Small-scale solar, including customer-owned photovoltaic panels, delivered an additional net 5,450 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 in gigawatt-hours, full-year 2024:^[1]

1. Natural gas: 55,155 (47.5%)
2. Nuclear: 32,388 (27.9%)
3. Solar: 10,786 (9.28%)
4. Coal: 9,815 (8.45%)
5. Hydroelectric:^[a] 5,295 (4.56%)
6. Wind: 2,540 (2.19%)
7. Biomass: 217 (0.19%)

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

Nuclear power stations

Name	County	Coordinates	Capacity (MW)	Year opened	Ref
Palo Verde Nuclear Generating Station	Maricopa County	33°23′17″N 112°51′42″W	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.^[4]

Coal

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	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)	2032 (Unit 1) 2032 (Unit 2)	[7][8]
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) 2032 (Unit 2) 2031 (Unit 3) 2029 (Unit 4)	[9][10][11][12][13]

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	[14]
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)	[15][16]

Natural gas

Name	County	Coordinates	Capacity (MW)	Generation type	Year opened	Refs
Agua Fria Generating Station	Maricopa County	33°33′22″N 112°12′55″W	626	Steam turbine (x3) Simple cycle (x3)	1957/1958/1961 (407MW) 1974/1975 (219MW)	[17]
Apache Generating Station	Cochise County	32°03′37″N 109°53′35″W	285	Steam turbine (x2)	2018 (convert from coal)	[5]
Arlington Valley Plant	Maricopa County	33°20′30″N 112°53′23″W	69	2x1 combined cycle	2002	[18][19]
Coolidge Generating Station	Pinal County	32°55′03″N 111°30′12″W	575	Simple cycle (x12)	2011	[20]
Desert Basin Power Plant	Pinal County	32°54′15″N 111°47′20″W	577	2x1 combined cycle	2001	[21]
Demoss Petrie Power Plant	Pinal County	32°15′08″N 110°59′32″W	85	Simple cycle	2001
Gila River Generating Station	Maricopa County	32°58′30″N 112°41′40″W	2,200	2x1 combined cycle (x4)	2003
Griffith Energy	Mohave County	35°03′14″N 114°08′00″W	654	2x1 combined cycle	2002	[18]
Harquahala Generating Station	Maricopa County	33°28′34″N 113°06′48″W	1092	1x1 combined cycle (x3)	2004	[18]
H. Wilson Sundt Generating Station	Pima County	32°09′36″N 110°54′17″W	502	Steam turbine (x2) Simple cycle (x2) Reciprocating engine (x5)	1962/1967 (360MW) 1972 (48MW) 2019 (94MW)	[22]
Kyrene Power Plant	Maricopa County	33°21′20″N 111°56′07″W	525	Steam turbine (x2) Simple cycle (x3) 1x1 combined cycle	1952/1954 (106MW) 1971/1973 (165MW) 2002 (254MW)	[23]
Mesquite Power Plant	Maricopa County	33°20′42″N 112°51′51″W	1,250	2x1 combined cycle (x2)	2003	[18]
North Loop Power Plant	Pima County	32°24′04″N 111°07′34″W	108	Simple cycle (x4)	1972/2001
Ocotillo Power Plant	Maricopa County	33°25′21″N 111°54′44″W	916	Simple cycle (x7)	1972/1973/2019	[14][24]
Red Hawk Power Station	Maricopa County	33°20′05″N 112°50′26″W	1,060	2x1 combined cycle (x2)	2002	[14][18]
Saguaro Power Plant	Pinal County	32°33′06″N 111°18′00″W	184	Simple cycle (x3)	1972/1973/2002	[14]
Santan Power Plant	Maricopa County	33°19′57″N 111°45′01″W	1,235	Combined cycle (x4) 2x1 combined cycle 1x1 combined cycle	1974/1975 (376MW) 2005 (582MW) 2006 (277MW)	[18]
Sundance Generating Station	Pinal County	32°55′43″N 111°35′24″W	450	Simple cycle (x10)	2002	[14][25]
Valencia Power Plant	Santa Cruz County	31°21′49″N 110°55′53″W	108	Simple cycle (x4)	1989/2006
West Phoenix Power Plant	Maricopa County	33°26′30″N 112°09′30″W	920	Simple cycle (x2) Combined cycle (x3) 2x1 combined cycle 1x1 combined cycle	1972/1973 (100MW) 1976 (255MW) 2001 (107MW) 2003 (458MW)	[14]
Yucca Power Plant	Yuma County	32°43′17″N 114°42′38″W	250	Steam turbine Simple cycle (x5)	1959 (75MW) 1971/1973/2008 (176MW)	[14][26]
Yuma Power Plant	Yuma County	32°43′44″N 114°39′15″W	50	1x1 combined cycle	1994	[18][27]

Petroleum

Name	County	Coordinates	Capacity (MW)	Generation type	Year opened	Refs
Douglas Power Plant	Cochise County	31°21′51″N 109°33′14″W	25	Simple cycle	1972	[14]
Yucca Power Plant	Yuma County	32°43′17″N 114°42′38″W	71	Simple cycle (x2)	1971/1978	[14]

Renewable power stations

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

Biomass & refuse

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	[28]
Northwest Regional Landfill	Maricopa County	33°40′55″N 112°28′36″W	3.2	Landfill gas	Reciprocating engine (x2)	2012	[29]
Novo BioPower Plant	Navajo County	34°30′12″N 110°20′06″W	22	Wood/ wood waste	Steam turbine	2008	[30]
Western Renewable Energy	Apache County	34°05′35″N 109°17′24″W	2.5	Wood/ wood waste	Steam turbine	2004	[31]

Hydroelectric dams

See also: List of dams and reservoirs in Arizona

Name	County	Coordinates	Capacity (MW)	Year opened	Refs
Arizona Falls	Maricopa County	33°29′24″N 111°57′32″W	0.75	2003	[23]
C.C. Cragin Dam (Blue Ridge)	Coconino County	34°33′16″N 111°11′50″W		1965	[23]
Childs-Irving Hydro	Yavapai County	34°21′04″N 111°42′02″W	4.2	1916	closed
Coolidge Dam	Gila County	33°10′29″N 110°31′40″W	10	1935	closed
Crosscut Hydro	Maricopa County	33°26′22″N 111°56′46″W	3.0	1939	[23]
Davis Dam	Mohave County	35°11′49″N 114°34′15″W	251	1951
Glen Canyon Dam	Coconino County	36°56′12″N 111°29′02″W	1,320	1964-1966	[32]
Headgate Rock	La Paz County	34°10′06″N 114°16′39″W	19.5	1993
Hoover Dam	Mohave County	36°00′56″N 114°44′17″W	2,080[A]	1936-1943/ 1952
Horse Mesa Dam	Maricopa County	33°35′27″N 111°20′38″W	129	1927	[23]
Mormon Flat Dam	Maricopa County	33°33′13″N 111°26′35″W	60	1926	[23]
Parker Dam	La Paz County	34°17′43″N 114°08′25″W	120	1938
South Consolidated Hydro	Maricopa County	33°27′59″N 111°46′52″W	1.4	1981	[23]
Stewart Mountain Dam	Maricopa County	33°33′58″N 111°32′10″W	13	1930	[23]
Theodore Roosevelt Dam	Gila/Maricopa	33°40′16″N 111°09′42″W	36	1973	[23]

^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.^[33][34]

Solar thermal plants

See also: Solar power in Arizona

Name	County	Coordinates	Capacity (MW)	Year opened	Ref
Solana Generating Station	Maricopa County	32°55′20″N 112°57′21″W	280	2013	[35]

Solar photovoltaic plants

See also: Solar power in Arizona

Name	County	Coordinates	Capacity (MWAC)	Year opened	Refs
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	[36]
Mesquite Solar project	Maricopa County	33°20′24″N 112°56′02″W	400	2012/2016
Agua Caliente Solar Project	Yuma County	32°58′39″N 113°29′40″W	290	May 2012/2014	[37]
Sonoran Solar Energy	Maricopa County	33.2425°N 112.5418°W / 33.2425; -112.5418	260	2012	[38]
Agave Solar	Maricopa County	33°19′33″N 112°50′32″W	150	September 25, 2023	[39][40]
Arlington Valley Solar Energy II (ru)	Maricopa County	33°18′18″N 112°50′02″W	125	April 2013	[41]
Saint Solar	Pinal County	32.8643°N 111.5007°W / 32.8643; -111.5007	100	June 2023	[42]
Red Horse III	Cochise County	32°15′40″N 110°09′15″W	81	July 2016	[43]
Kayenta Solar Project	Navajo County	36°47′21″N 110°14′18″W	55	2017/2019	[44]
Gray Hawk Solar	Mohave County	35°20′46″N 113°54′53″W	55	June 2018	[45]
Bonnybrooke Solar	Mohave County	33°03′11″N 111°20′24″W	50	November 2016	[46]
Avalon	Pima County	32°02′19″N 110°57′30″W	45	December 2014/2016
Sandstone Solar	Pinal County	33°02′08″N 111°27′01″W	45	December 2015	[47]
Red Rock	Maricopa County	32°33′04″N 111°17′21″W	40	February 2017	[48]
Foothills Solar Plant Hybrid	Yuma County	32°38′20″N 114°25′52″W	35	March 2013	[49]
Gila Bend Hybrid	Maricopa County	32°56′56″N 112°46′12″W	32	October 2014	[50]
OE_AZ1	La Paz County	33°46′15″N 113°39′17″W	32	December 2019	[51]
Avra Valley Solar	Pima County	32°22′18″N 111°16′58″W	26	January 2013	[52]
Apache Solar 1	Cochise County	32°04′05″N 109°53′25″W	20	October 2017	[53]
Copper Crossing Solar Ranch	Pinal County	33°09′33″N 111°28′53″W	20	2011	[54]
Pinal Central Energy Center Hybrid	Pinal County	32°52′33″N 111°33′04″W	20	April 2018	[55]
Sulphur Springs	Cochise County	32°03′46″N 109°55′09″W	20	December 2016	[56]
Chino Solar Valley	Yavapai County	34°43′27″N 112°25′54″W	19	December 2012	[57]
Paloma Solar Hybrid	Maricopa County	33.0209°N 112.6616°W / 33.0209; -112.6616	18	September 2011	[58]
Cotton Center Solar Hybrid	Maricopa County	33.0351°N 112.6607°W / 33.0351; -112.6607	17	November 2011	[59]
Saddle Mountain Solar I	Maricopa County	33.38107°N 113.18471°W / 33.38107; -113.18471	15	December 2012	[60]
Desert Star Hybrid	Maricopa County	33.14397°N 112.66304°W / 33.14397; -112.66304	10	September 2015	[61]
Box Canyon Solar Project	Pinal County	33.0972°N 111.2783°W / 33.0972; -111.2783	300	2025	[62]
Eleven Mile Solar Center	Pinal County	32.86115°N 111.58893°W / 32.86115; -111.58893	300	2024	[63]
Storey Solar Energy Center	Pinal County	32.88321°N 111.50827°W / 32.88321; -111.50827	122	December 2023	[64][65]
Luke Solar	Maricopa County	33.5268°N 112.3807°W / 33.5268; -112.3807	15	June 2015	[66]
Queen Creek Solar Farm	Maricopa County	33.26678°N 111.61353°W / 33.26678; -111.61353	19	October 2012	[67]
Badger 1 Solar	Maricopa County	33.4981°N 112.8131°W / 33.4981; -112.8131	15	November 2013	[68]
Hyder II Hybrid	Yuma County	33.0256°N 113.3535°W / 33.0256; -113.3535	32	December 2013	[69]
Picture Rocks Solar	Pima County	32.37066°N 111.24242°W / 32.37066; -111.24242	20	December 2012	[70]
Brittlebush Solar Park	Pinal County	32.965°N 111.5331°W / 32.965; -111.5331	200	July 2024	[71]

Wind farms

See also: Wind power in Arizona

Name	County	Coordinates	Capacity (MW)	Year opened	Refs
Dry Lake Wind Power Project	Navajo County	34°39′35″N 110°17′03″W	127	August 2009	[72]
Kingman 1	Mohave County	35°08′45″N 114°04′03″W	10	September 2011	[73]
Perrin Ranch Wind	Coconino County	35°24′56″N 112°16′16″W	99	January 2012	[74]
Red Horse 2	Cochise County	32°17′10″N 110°05′17″W	30	August 2015	[75]
White Hills Wind	Mohave County	35°28′24″N 114°17′21″W	350	2021	[76]
Babbitt Ranch Energy Center	Coconino County	35.6425°N 112.0932°W / 35.6425; -112.0932	161	June 2024	[77][78]

Storage power stations

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

Battery storage

Name	County	Coordinates	Capacity (MWh / MW)	Year opened	Refs
McFarland Storage	Yuma County	32.9376°N 113.4708°W / 32.9376; -113.4708	1140 / 435	2025	[79]
Storey Solar / BESS	Pinal County	32.88297°N 111.50855°W / 32.88297; -111.50855	88	2023	[64]
Eleven Mile Solar Center BESS	Pinal County	32.86115°N 111.58893°W / 32.86115; -111.58893	1200 / 300	2024	[80]
Agua Fria Generating Station	Maricopa County	33.55340°N 112.21263°W / 33.55340; -112.21263	25	2021	[81]
Paloma Solar Hybrid	Maricopa County	33.02481°N 112.65867°W / 33.02481; -112.65867	17	April 2023	[82]
AES Gilbert ES	Maricopa County	33°26′48″N 111°57′23″W	10	2019	[83]
Iron Horse BESS Hybrid	Pima County	32°05′55″N 110°49′09″W	10	2017	[84][85]
Pima BESS	Pima County	32°15′06″N 110°59′29″W	10	2017	[85]
Pinal Central Hybrid ES	Pima County	32°52′33″N 111°33′04″W	10	2018	[55]
Desert Star Hybrid	Maricopa County	33.14512°N 112.65962°W / 33.14512; -112.65962	10	February 2023	[86]
Punkin Center BS	Gila County	33°52′33″N 111°18′49″W	2	2018	[87]
Sonoran Solar Energy	Maricopa County	33.23900°N 112.57154°W / 33.23900; -112.57154	1000 / 260	2012 / 2024	[88][89][90]
Sierra Estrella Energy Storage Facility	Maricopa County	33.41056°N 112.31426°W / 33.41056; -112.31426	1000 / 250	June 2024	[91][92]
Superstition Energy Storage facility	Maricopa County	33.35891°N 111.83095°W / 33.35891; -111.83095	90	June 24, 2024	[91][93]
Storey Solar Energy Center	Pinal County	32.8832°N 111.5087°W / 32.8832; -111.5087	88	December 2023	[64][65]
Papago Storage	Maricopa County		1200 / 300	2025	[94][95][96]
Scatter Wash Battery Storage Comple	Maricopa County		1020 / 255	April 2025	[97][98]
Hyder II Hybrid	Yuma County	33.0259°N 113.3521°W / 33.0259; -113.3521	14	2013	[69]
Foothills Solar Plant Hybrid	Yuma County	32.6389°N 114.4313°W / 32.6389; -114.4313	35	April 2023	[49]
Saint Solar Energy Center	Pinal County	32.8643°N 111.5007°W / 32.8643; -111.5007	100		[99]
Signal Butte Energy Storage			250	Mid 2026	[100]
Flatland Energy Storage Project	Pinal County		800 / 200	2025	[101]

Pumped storage

Name	Location	Coordinates	Capacity (MW)	Year opened	Refs
Horse Mesa	Maricopa County	33°35′27″N 111°20′38″W	119	1972	[23]
Mormon Flat	Maricopa County	33°33′13″N 111°26′35″W	57	1971	[23]
Waddell	Maricopa County	33°50′41″N 112°16′17″W	40	1993	[102]

Utility companies

• Arizona Electric Power Cooperative
• Arizona Public Service
• Salt River Project
• Tucson Electric Power
• UniSource Energy Services

See also

• Energy portal
• United States portal
• Arizona portal

• List of power stations in the United States

Notes

1. Includes conventional hydroelectric and hydroelectric pumped storage.