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From Wikipedia, the free encyclopedia

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%)

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]

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

Name County Coordinates Capacity
(MW)
Year
Opened
Ref
Palo Verde Nuclear Generating Station Maricopa County 33°23′17″N 112°51′42″W / 33.3881°N 112.8617°W / 33.3881; -112.8617 (Palo Verde) 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 / 32.0603°N 109.8931°W / 32.0603; -109.8931 (Apache Station) 204 1964 (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 Plant Navajo County 34°56′22″N 110°18′12″W / 34.9394°N 110.3033°W / 34.9394; -110.3033 (Cholla Power Plant) 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)
[7] [8]
Coronado Generating Station Apache County 34°34′44″N 109°16′15″W / 34.5789°N 109.2708°W / 34.5789; -109.2708 (Coronado Station) 822 1979 (Unit 1- 411MW)
1980 (Unit 2- 411MW)
2032 (Unit 1)
2032 (Unit 2)
[9] [10]
Springerville Generating Station Apache County 34°19′07″N 109°09′50″W / 34.3186°N 109.1639°W / 34.3186; -109.1639 (Springerville Station) 1,766 1985 (Unit 1- 425MW)
1990 (Unit 2- 425MW)
2006 (Unit 3- 458MW)
2009 (Unit 4- 458MW)
2027 (Unit 1)
2032 (Unit 2)
TBD (Unit 3)
TBD (Unit 4)
[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 / 36.9047°N 111.3886°W / 36.9047; -111.3886 (Navajo Station) 2,409 1974 (Unit 1- 803MW)
1975 (Unit 2- 803MW)
1976 (Unit 3- 803MW)
2019 [14]

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 / 33.5561°N 112.2153°W / 33.5561; -112.2153 (Agua Fria) 626 Steam Turbine (x3)
Simple Cycle (x3)
1957/1958/1961 (407MW)
1974/1975 (219MW)
[15]
Apache Generating Station Cochise County 32°03′37″N 109°53′35″W / 32.0603°N 109.8931°W / 32.0603; -109.8931 (Apache) 285 Steam Turbine (x2) 2018
(convert from coal)
[5]
Arlington Valley Plant Maricopa County 33°20′30″N 112°53′23″W / 33.3417°N 112.8897°W / 33.3417; -112.8897 (Arlington Valley) 69 2x1 Combined Cycle 2002 [16] [17]
Coolidge Generating Station Pinal County 32°55′03″N 111°30′12″W / 32.9174°N 111.5033°W / 32.9174; -111.5033 (Coolidge) 575 Simple Cycle (x12) 2011 [18]
Desert Basin Power Plant Pinal County 32°54′15″N 111°47′20″W / 32.9042°N 111.7889°W / 32.9042; -111.7889 (Desert Basin) 577 2x1 Combined Cycle 2001 [19]
Demoss Petrie Power Plant Pinal County 32°15′08″N 110°59′32″W / 32.2523°N 110.9921°W / 32.2523; -110.9921 (Demoss Petrie) 85 Simple Cycle 2001
Gila River Generating Station Maricopa County 32°58′30″N 112°41′40″W / 32.9750°N 112.6944°W / 32.9750; -112.6944 (Gila River) 2,200 2x1 Combined Cycle (x4) 2003
Griffith Energy Mohave County 35°03′14″N 114°08′00″W / 35.0540°N 114.1333°W / 35.0540; -114.1333 (Griffith Energy) 654 2x1 Combined Cycle 2002 [16]
Harquahala Generating Station Maricopa County 33°28′34″N 113°06′48″W / 33.4760°N 113.1134°W / 33.4760; -113.1134 (Harquahala) 1092 1x1 Combined Cycle (x3) 2004 [16]
H. Wilson Sundt Generating Station Pima County 32°09′36″N 110°54′17″W / 32.1600°N 110.9047°W / 32.1600; -110.9047 (H Wilson Sundt Station) 502 Steam Turbine (x2)
Simple Cycle (x2)
Reciprocating Engine (x5)
1962/1967 (360MW)
1972 (48MW)
2019 (94MW)
[20]
Kyrene Power Plant Maricopa County 33°21′20″N 111°56′07″W / 33.3556°N 111.9353°W / 33.3556; -111.9353 (Kyrene) 525 Steam Turbine (x2)
Simple Cycle (x3)
1x1 Combined Cycle
1952/1954 (106MW)
1971/1973 (165MW)
2002 (254MW)
[21]
Mesquite Power Plant Maricopa County 33°20′42″N 112°51′51″W / 33.3450°N 112.8642°W / 33.3450; -112.8642 (Mesquite) 1,250 2x1 Combined Cycle (x2) 2003 [16]
North Loop Power Plant Pima County 32°24′04″N 111°07′34″W / 32.4010°N 111.1262°W / 32.4010; -111.1262 (North Loop) 108 Simple Cycle (x4) 1972/2001
Ocotillo Power Plant Maricopa County 33°25′21″N 111°54′44″W / 33.4225°N 111.9122°W / 33.4225; -111.9122 (Ocotillo) 916 Simple Cycle (x7) 1972/1973/2019 [14] [22]
Red Hawk Power Station Maricopa County 33°20′05″N 112°50′26″W / 33.3346°N 112.8406°W / 33.3346; -112.8406 (Red Hawk) 1,060 2x1 Combined Cycle (x2) 2002 [14] [16]
Saguaro Power Plant Pinal County 32°33′06″N 111°18′00″W / 32.5517°N 111.3000°W / 32.5517; -111.3000 (Saguaro) 184 Simple Cycle (x3) 1972/1973/2002 [14]
Santan Power Plant Maricopa County 33°19′57″N 111°45′01″W / 33.3325°N 111.7503°W / 33.3325; -111.7503 (Santan) 1,235 Combined Cycle (x4)
2x1 Combined Cycle
1x1 Combined Cycle
1974/1975 (376MW)
2005 (582MW)
2006 (277MW)
[16]
Sundance Generating Station Pinal County 32°55′43″N 111°35′24″W / 32.9285°N 111.5899°W / 32.9285; -111.5899 (Sundance) 450 Simple Cycle (x10) 2002 [14] [23]
Valencia Power Plant Santa Cruz County 31°21′49″N 110°55′53″W / 31.3635°N 110.9313°W / 31.3635; -110.9313 (Valencia) 108 Simple Cycle (x4) 1989/2006
West Phoenix Power Plant Maricopa County 33°26′30″N 112°09′30″W / 33.4417°N 112.1583°W / 33.4417; -112.1583 (West Phoenix) 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 / 32.7214°N 114.7106°W / 32.7214; -114.7106 (Yucca) 250 Steam Turbine
Simple Cycle (x5)
1959 (75MW)
1971/1973/2008 (176MW)
[14] [24]
Yuma Power Plant Yuma County 32°43′44″N 114°39′15″W / 32.7288°N 114.6541°W / 32.7288; -114.6541 (Yuma) 50 1x1 Combined Cycle 1994 [16] [25]

Petroleum

Name County Coordinates Capacity
( MW)
Generation
Type
Year
Opened
Refs
Douglas Power Plant Cochise County 31°21′51″N 109°33′14″W / 31.3641°N 109.5538°W / 31.3641; -109.5538 (Douglas) 25 Simple Cycle 1972 [14]
Yucca Power Plant Yuma County 32°43′17″N 114°42′38″W / 32.7214°N 114.7106°W / 32.7214; -114.7106 (Yucca) 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 / 33.5403°N 112.3064°W / 33.5403; -112.3064 (Glendale Landfill) 2.8 landfill gas Reciprocating Engine (x2) 2010 [26]
Northwest Regional Landfill Maricopa County 33°40′55″N 112°28′36″W / 33.6819°N 112.4767°W / 33.6819; -112.4767 (Northwest Regional Landfill) 3.2 landfill gas Reciprocating Engine (x2) 2012 [27]
Novo BioPower Plant Navajo County 34°30′12″N 110°20′06″W / 34.5032°N 110.3350°W / 34.5032; -110.3350 (Novo BioPower) 22 wood/ wood waste Steam Turbine 2008 [28]
Western Renewable Energy Apache County 34°05′35″N 109°17′24″W / 34.0930°N 109.2900°W / 34.0930; -109.2900 (Western RE Biomass) 2.5 wood/ wood waste Steam Turbine 2004 [29]

Hydroelectric dams

Name County Coordinates Capacity
( MW)
Year
Opened
Refs
Arizona Falls Maricopa County 33°29′24″N 111°57′32″W / 33.4899°N 111.9589°W / 33.4899; -111.9589 (Arizona Falls Hydro) 0.75 2003 [21]
C.C. Cragin Dam
(Blue Ridge)
Coconino County 34°33′16″N 111°11′50″W / 34.55444°N 111.19722°W / 34.55444; -111.19722 (C.C. Cragin Hydro) 1965 [21]
Childs-Irving Hydro Yavapai County 34°21′04″N 111°42′02″W / 34.3511°N 111.7006°W / 34.3511; -111.7006 (Childs-Irving Hydro) 4.2 1916 closed
Coolidge Dam Gila County 33°10′29″N 110°31′40″W / 33.1747°N 110.5279°W / 33.1747; -110.5279 (Coolidge Hydro) 10 1935 closed
Crosscut Hydro Maricopa County 33°26′22″N 111°56′46″W / 33.4394°N 111.9461°W / 33.4394; -111.9461 (Crosscut Hydro) 3.0 1939 [21]
Davis Dam Mohave County 35°11′49″N 114°34′15″W / 35.1970°N 114.5707°W / 35.1970; -114.5707 (Davis Hydro) 251 1951
Glen Canyon Dam Coconino County 36°56′12″N 111°29′02″W / 36.9366°N 111.4839°W / 36.9366; -111.4839 (Glen Canyon Hydro) 1,320 1964-1966 [30]
Headgate Rock La Paz County 34°10′06″N 114°16′39″W / 34.1683°N 114.2774°W / 34.1683; -114.2774 (Headgate Rock Hydro) 19.5 1993
Hoover Dam Mohave County 36°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 Dam Maricopa County 33°35′27″N 111°20′38″W / 33.5907°N 111.3440°W / 33.5907; -111.3440 (Horse Mesa Hydro) 129 1927 [21]
Mormon Flat Dam Maricopa County 33°33′13″N 111°26′35″W / 33.5536°N 111.4431°W / 33.5536; -111.4431 (Mormon Flat Hydro) 60 1926 [21]
Parker Dam La Paz County 34°17′43″N 114°08′25″W / 34.2953°N 114.1402°W / 34.2953; -114.1402 (Parker Dam Hydro) 120 1938
South Consolidated Hydro Maricopa County 33°27′59″N 111°46′52″W / 33.4665°N 111.7811°W / 33.4665; -111.7811 (South Consolidated Hydro) 1.4 1981 [21]
Stewart Mountain Dam Maricopa County 33°33′58″N 111°32′10″W / 33.5661°N 111.5360°W / 33.5661; -111.5360 (Stewart Mountain Hydro) 13 1930 [21]
Theodore Roosevelt Dam Gila/Maricopa 33°40′16″N 111°09′42″W / 33.6711°N 111.1618°W / 33.6711; -111.1618 (Roosevelt Hydro) 36 1973 [21]

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. [31] [32]

Solar thermal plants

Name County Coordinates Capacity
( MW)
Year
Opened
Ref
Solana Generating Station Maricopa County 32°55′20″N 112°57′21″W / 32.9223°N 112.9559°W / 32.9223; -112.9559 (Solana Solar Station) 280 2013

Solar photovoltaic plants

Name County Coordinates Capacity
( MWAC)
Year
Opened
Refs
McFarland Solar Yuma County 32°56′15″N 113°28′15″W / 32.9376°N 113.4708°W / 32.9376; -113.4708 500 2023/2025 [1]
Mesquite Solar project Maricopa County 33°20′24″N 112°56′02″W / 33.3399°N 112.9339°W / 33.3399; -112.9339 (Mesquite Solar) 400 2012/2016
Agua Caliente Solar Project Yuma County 32°58′39″N 113°29′40″W / 32.9774°N 113.4945°W / 32.9774; -113.4945 (Agua Caliente Solar) 290 2012/2014
Sonoran Solar Project Maricopa County 33°14′34″N 112°32′28″E / 33.2429°N 112.5411°E / 33.2429; 112.5411 260 [33]
Agave Solar Maricopa County 33°19′33″N 112°50′32″W / 33.3259°N 112.8422°W / 33.3259; -112.8422 (Agave Solar) 150 September 25, 2023 [34]
Arlington Valley Solar Energy II [ ru] Maricopa County 33°18′18″N 112°50′02″W / 33.3050°N 112.8339°W / 33.3050; -112.8339 (Arlington Valley Solar) 125 2013 [35]
Saint Solar Pinal County 32°51′51″N 111°30′03″W / 32.8643°N 111.5007°W / 32.8643; -111.5007 100 June 2023 [36]
Red Horse Cochise County 32°15′40″N 110°09′15″W / 32.2610°N 110.1543°W / 32.2610; -110.1543 (Red Horse Solar) 81 2015/2016 [37]
Kayenta Solar Project Navajo County 36°47′21″N 110°14′18″W / 36.7893°N 110.2383°W / 36.7893; -110.2383 (Kayenta Solar) 55 2017/2019 [38]
Gray Hawk Solar Mohave County 35°20′46″N 113°54′53″W / 35.3462°N 113.9148°W / 35.3462; -113.9148 (Gray Hawk Solar) 55 2018 [39]
Bonnybrooke Solar Mohave County 33°03′11″N 111°20′24″W / 33.0530°N 111.3400°W / 33.0530; -111.3400 (Bonnybrooke Solar) 50 2016 [40]
Avalon Pima County 32°02′19″N 110°57′30″W / 32.0385°N 110.9584°W / 32.0385; -110.9584 (Avalon Solar) 45 2014/2016
Sandstone Solar Pinal County 33°02′08″N 111°27′01″W / 33.0356°N 111.4503°W / 33.0356; -111.4503 (Sandstone Solar) 45 2015
Red Rock Maricopa County 32°33′04″N 111°17′21″W / 32.5510°N 111.2892°W / 32.5510; -111.2892 (Red Rock Solar) 40 2017
Foothills Yuma County 32°38′20″N 114°25′52″W / 32.6388°N 114.4312°W / 32.6388; -114.4312 (Foothills Solar) 35 2013
Gila Bend Maricopa County 32°56′56″N 112°46′12″W / 32.9490°N 112.7701°W / 32.9490; -112.7701 (Gila Bend Hybrid) 32 2014
OE_AZ1 La Paz County 33°46′15″N 113°39′17″W / 33.7709°N 113.6546°W / 33.7709; -113.6546 (OE_AZ1 Solar) 32 2019
Avra Valley Pima County 32°22′18″N 111°16′58″W / 32.3717°N 111.2828°W / 32.3717; -111.2828 (Avra Valley Solar) 26 2013
Apache Cochise County 32°04′05″N 109°53′25″W / 32.0681°N 109.8904°W / 32.0681; -109.8904 (Apache Solar) 20 2017
Copper Crossing Solar Ranch Pinal County 33°09′33″N 111°28′53″W / 33.1592°N 111.4814°W / 33.1592; -111.4814 (Copper Crossing Solar) 20 2011 [41]
Picture Rocks Pima County 32°22′11″N 111°14′34″W / 32.3697°N 111.2428°W / 32.3697; -111.2428 (Picture Rocks Solar) 20 2012
Pinal Central Energy Center Pinal County 32°52′33″N 111°33′04″W / 32.8757°N 111.5511°W / 32.8757; -111.5511 (Pinal CEC Solar) 20 2018 [42]
Sulphur Springs Cochise County 32°03′46″N 109°55′09″W / 32.0628°N 109.9193°W / 32.0628; -109.9193 (Sulphur Springs Solar) 20 2016
Chino Solar Valley Yavapai County 34°43′27″N 112°25′54″W / 34.7242°N 112.4318°W / 34.7242; -112.4318 (Chino Solar Valley) 19 2012
Queen Creek Solar Maricopa County 33°16′03″N 111°36′44″W / 33.2675°N 111.6122°W / 33.2675; -111.6122 (Queen Creek Solar) 19 2012
Paloma Solar Hybrid Maricopa County 33°01′15″N 112°39′42″W / 33.0209°N 112.6616°W / 33.0209; -112.6616 18 2011
Cotton Center Solar Hybrid Maricopa County 33°02′06″N 112°39′39″W / 33.0351°N 112.6607°W / 33.0351; -112.6607 17 2013
Saddle Mountain Solar I Maricopa County 33°22′52″N 113°11′05″W / 33.38107°N 113.18471°W / 33.38107; -113.18471 15
Desert Star Hybrid Maricopa County 33°08′38″N 112°39′47″W / 33.14397°N 112.66304°W / 33.14397; -112.66304 10 September 2015 [43]

Wind farms

Name County Coordinates Capacity
( MW)
Year
Opened
Refs
Dry Lake Wind Power Project Navajo County 34°39′35″N 110°17′03″W / 34.6596°N 110.2842°W / 34.6596; -110.2842 (Dry Lake Wind) 127 2009/2010
Kingman Wind Mohave County 35°08′45″N 114°04′03″W / 35.1458°N 114.0675°W / 35.1458; -114.0675 (Kingman Wind) 10 2011 [44]
Perrin Ranch Wind Coconino County 35°24′56″N 112°16′16″W / 35.4156°N 112.2711°W / 35.4156; -112.2711 (Perrin Ranch Wind) 99 2012 [45]
Red Horse Wind Cochise County 32°17′10″N 110°05′17″W / 32.2861°N 110.0881°W / 32.2861; -110.0881 (Red Horse Wind) 30 2015 [46]
White Hills Wind Mohave County 35°28′24″N 114°17′21″W / 35.47326°N 114.2892°W / 35.47326; -114.2892 (White Hills Wind) 350 2021 [47]

Storage power stations

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

Battery storage

Name County Coordinates Discharge
Capacity
( MW)
Year
Opened
Refs
McFarland Storage Yuma County 32°56′15″N 113°28′15″W / 32.9376°N 113.4708°W / 32.9376; -113.4708 435.0 2025 [2]
Agua Fria Generating Station Maricopa County 33°33′12″N 112°12′45″W / 33.55340°N 112.21263°W / 33.55340; -112.21263 25.0 2021 [48]
Paloma Solar Hybrid Maricopa County 33°01′29″N 112°39′31″W / 33.02481°N 112.65867°W / 33.02481; -112.65867 17.0
AES Gilbert ES Maricopa County 33°26′48″N 111°57′23″W / 33.4468°N 111.9563°W / 33.4468; -111.9563 (AES Gilbert ES) 10.0 2019 [49]
Iron Horse BESS Hybrid Pima County 32°05′55″N 110°49′09″W / 32.0985°N 110.8191°W / 32.0985; -110.8191 (Iron Horse BESS) 10.0 2017 [50] [51]
Pima BESS Pima County 32°15′06″N 110°59′29″W / 32.2516°N 110.9913°W / 32.2516; -110.9913 (Pima BESS) 10.0 2017 [51]
Pinal Central Hybrid ES Pima County 32°52′33″N 111°33′04″W / 32.8757°N 111.5511°W / 32.8757; -111.5511 (Pinal Central ES) 10.0 2018 [42]
Desert Star Hybrid Maricopa County 33°08′42″N 112°39′35″W / 33.14512°N 112.65962°W / 33.14512; -112.65962 10.0
Punkin Center BS Gila County 33°52′33″N 111°18′49″W / 33.8758°N 111.3136°W / 33.8758; -111.3136 (Punkin Center BS) 2.0 2018 [52]

Pumped storage

Name Location Coordinates Capacity
( MW)
Year
Opened
Refs
Horse Mesa Maricopa County 33°35′27″N 111°20′38″W / 33.5907°N 111.3440°W / 33.5907; -111.3440 (Horse Mesa PS) 119 1972 [21]
Mormon Flat Maricopa County 33°33′13″N 111°26′35″W / 33.5536°N 111.4431°W / 33.5536; -111.4431 (Mormon Flat PS) 57 1971 [21]
Waddell Maricopa County 33°50′41″N 112°16′17″W / 33.8447°N 112.2714°W / 33.8447; -112.2714 (Waddell PS) 40 1993 [53]

Utility companies

Notes

  1. ^ Includes conventional hydroelectric and hydroelectric pumped storage.

References

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  14. ^ a b c d e f g h i [APS Generation https://www.aps.com/en/ourcompany/generationtransmission/generation/Pages/home.aspx
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  19. ^ "SRP: Desert Basin Generating Station". www.srpnet.com. Retrieved 2016-11-15.
  20. ^ Wichner, David. "TEP's Sundt plant goes 'back to the future' with piston-engine technology". Arizona Daily Star. Retrieved 2018-01-03.
  21. ^ a b c d e f g h i j k "SRP's generation sources". Salt River Project. Retrieved 22 June 2015.
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External links