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 | 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
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 | 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 | 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 | 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 | 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) TBD (Unit 4) | [11][12][13][14] |
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 | 2,409 | 1974 (Unit 1- 803MW) 1975 (Unit 2- 803MW) 1976 (Unit 3- 803MW) | 2019 | [15] |
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 | 626 | Steam Turbine (x3) Simple Cycle (x3) | 1957/1958/1961 (407MW) 1974/1975 (219MW) | [16] |
Apache Generating Station | Cochise County | 32°03′37″N 109°53′35″W / 32.0603°N 109.8931°W | 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 | 69 | 2x1 Combined Cycle | 2002 | [17][18] |
Coolidge Generating Station | Pinal County | 32°55′03″N 111°30′12″W / 32.9174°N 111.5033°W | 575 | Simple Cycle (x12) | 2011 | [19] |
Desert Basin Power Plant | Pinal County | 32°54′15″N 111°47′20″W / 32.9042°N 111.7889°W | 577 | 2x1 Combined Cycle | 2001 | [20] |
Demoss Petrie Power Plant | Pinal County | 32°15′08″N 110°59′32″W / 32.2523°N 110.9921°W | 85 | Simple Cycle | 2001 | |
Gila River Generating Station | Maricopa County | 32°58′30″N 112°41′40″W / 32.9750°N 112.6944°W | 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 | 654 | 2x1 Combined Cycle | 2002 | [17] |
Harquahala Generating Station | Maricopa County | 33°28′34″N 113°06′48″W / 33.4760°N 113.1134°W | 1092 | 1x1 Combined Cycle (x3) | 2004 | [17] |
H. Wilson Sundt Generating Station | Pima County | 32°09′36″N 110°54′17″W / 32.1600°N 110.9047°W | 502 | Steam Turbine (x2) Simple Cycle (x2) Reciprocating Engine (x5) | 1962/1967 (360MW) 1972 (48MW) 2019 (94MW) | [21] |
Kyrene Power Plant | Maricopa County | 33°21′20″N 111°56′07″W / 33.3556°N 111.9353°W | 525 | Steam Turbine (x2) Simple Cycle (x3) 1x1 Combined Cycle | 1952/1954 (106MW) 1971/1973 (165MW) 2002 (254MW) | [22] |
Mesquite Power Plant | Maricopa County | 33°20′42″N 112°51′51″W / 33.3450°N 112.8642°W | 1,250 | 2x1 Combined Cycle (x2) | 2003 | [17] |
North Loop Power Plant | Pima County | 32°24′04″N 111°07′34″W / 32.4010°N 111.1262°W | 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 | 916 | Simple Cycle (x7) | 1972/1973/2019 | [15][23] |
Red Hawk Power Station | Maricopa County | 33°20′05″N 112°50′26″W / 33.3346°N 112.8406°W | 1,060 | 2x1 Combined Cycle (x2) | 2002 | [15][17] |
Saguaro Power Plant | Pinal County | 32°33′06″N 111°18′00″W / 32.5517°N 111.3000°W | 184 | Simple Cycle (x3) | 1972/1973/2002 | [15] |
Santan Power Plant | Maricopa County | 33°19′57″N 111°45′01″W / 33.3325°N 111.7503°W | 1,235 | Combined Cycle (x4) 2x1 Combined Cycle 1x1 Combined Cycle | 1974/1975 (376MW) 2005 (582MW) 2006 (277MW) | [17] |
Sundance Generating Station | Pinal County | 32°55′43″N 111°35′24″W / 32.9285°N 111.5899°W | 450 | Simple Cycle (x10) | 2002 | [15][24] |
Valencia Power Plant | Santa Cruz County | 31°21′49″N 110°55′53″W / 31.3635°N 110.9313°W | 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 | 920 | Simple Cycle (x2) Combined Cycle (x3) 2x1 Combined Cycle 1x1 Combined Cycle | 1972/1973 (100MW) 1976 (255MW) 2001 (107MW) 2003 (458MW) | [15] |
Yucca Power Plant | Yuma County | 32°43′17″N 114°42′38″W / 32.7214°N 114.7106°W | 250 | Steam Turbine Simple Cycle (x5) | 1959 (75MW) 1971/1973/2008 (176MW) | [15][25] |
Yuma Power Plant | Yuma County | 32°43′44″N 114°39′15″W / 32.7288°N 114.6541°W | 50 | 1x1 Combined Cycle | 1994 | [17][26] |
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 | 25 | Simple Cycle | 1972 | [15] |
Yucca Power Plant | Yuma County | 32°43′17″N 114°42′38″W / 32.7214°N 114.7106°W | 71 | Simple Cycle (x2) | 1971/1978 | [15] |
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 | 2.8 | landfill gas | Reciprocating Engine (x2) | 2010 | [27] |
Northwest Regional Landfill | Maricopa County | 33°40′55″N 112°28′36″W / 33.6819°N 112.4767°W | 3.2 | landfill gas | Reciprocating Engine (x2) | 2012 | [28] |
Novo BioPower Plant | Navajo County | 34°30′12″N 110°20′06″W / 34.5032°N 110.3350°W | 22 | wood/ wood waste | Steam Turbine | 2008 | [29] |
Western Renewable Energy | Apache County | 34°05′35″N 109°17′24″W / 34.0930°N 109.2900°W | 2.5 | wood/ wood waste | Steam Turbine | 2004 | [30] |
Hydroelectric dams
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
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 | 280 | 2013 | [34] |
Solar photovoltaic plants
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 | 127 | 2009/2010 | |
Kingman Wind | Mohave County | 35°08′45″N 114°04′03″W / 35.1458°N 114.0675°W | 10 | 2011 | [51] |
Perrin Ranch Wind | Coconino County | 35°24′56″N 112°16′16″W / 35.4156°N 112.2711°W | 99 | 2012 | [52] |
Red Horse Wind | Cochise County | 32°17′10″N 110°05′17″W / 32.2861°N 110.0881°W | 30 | 2015 | [53] |
White Hills Wind | Mohave County | 35°28′24″N 114°17′21″W / 35.47326°N 114.2892°W | 350 | 2021 | [54] |
Babbitt Ranch Energy Center | Coconino County | 35°38′33″N 112°05′36″W / 35.6425°N 112.0932°W | 161 | June 2024 | [55][56] |
Storage power stations
Data from the U.S. Energy Information Administration serves as a general reference.[4]
Battery storage
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 | 119 | 1972 | [22] |
Mormon Flat | Maricopa County | 33°33′13″N 111°26′35″W / 33.5536°N 111.4431°W | 57 | 1971 | [22] |
Waddell | Maricopa County | 33°50′41″N 112°16′17″W / 33.8447°N 112.2714°W | 40 | 1993 | [72] |
Utility companies
- Arizona Electric Power Cooperative
- Arizona Public Service
- Salt River Project
- Tucson Electric Power
- UniSource Energy Services