Power plants in Arizona
198 operating power projects with 44,502 MW of nameplate capacity, from EIA-860M for August 2026.
Projects
198
Nameplate capacity
44,502 MW
Counties with a plant
13
Operators
101
Power markets: CAISO prices
Capacity by fuel
Natural gas · 17,267 MW · 32Solar · 8,828 MW · 123Battery storage · 6,639 MW · 20Nuclear · 4,210 MW · 1Coal · 2,792 MW · 2Hydro · 2,684 MW · 5Wind · 1,735 MW · 9Pumped storage · 194 MW · 3Other fuels · 154 MW · 3
MW is nameplate from operating generators and batteries. Plant counts use each project's primary fuel, so a coal and gas plant counts once.
Largest power plants in Arizona
Top 50 · All 198 plants| Plant | Primary fuel | MW | County | Operator |
|---|---|---|---|---|
| Palo Verde | Nuclear | 4,210 | Maricopa | Arizona Public Service Co |
| Springerville | Coal | 1,779 | Apache | Tucson Electric Power Co |
| Santan | Natural gas | 1,326 | Maricopa | Salt River Project |
| Glen Canyon Dam | Hydro | 1,312 | Coconino | U S Bureau of Reclamation |
| Harquahala Generating Project | Natural gas | 1,277 | Maricopa | New Harquahala Generating Co, LLC |
| West Phoenix | Natural gas | 1,207 | Maricopa | Arizona Public Service Co |
| Red Hawk | Natural gas | 1,127 | Maricopa | Arizona Public Service Co |
| Hoover Dam (AZ) | Hydro | 1,039 | Mohave | U S Bureau of Reclamation |
| Coolidge Generation Station | Natural gas | 1,023 | Pinal | Salt River Project |
| Coronado | Coal | 822 | Apache | Salt River Project |
Arizona power plants by fuel
Solar farms in Arizona124 plants · 8,814 MWWind farms in Arizona10 plants · 1,735 MWBattery storage projects in Arizona55 projects · 6,639 MWNatural gas power plants in Arizona32 plants · 17,267 MWCoal power plants in Arizona3 plants · 2,792 MWHydroelectric power plants in Arizona5 plants · 2,655 MW
Newest plants in Arizona
Ordered by the month the first generator began operating.
Maricopa SolarSolar · 550 MW · Maricopa County · July 2026ATLAS Solar V, LLCSolar · 200 MW · La Paz County · July 2026Centennial FlatsSolar · 511.4 MW · La Paz County · June 2026Catclaw SolarSolar · 450 MW · Maricopa County · June 2026Roadrunner Reserve Phase 2Battery storage · 200 MW · Pima County · June 2026Papago PVSolar · 150 MW · Maricopa County · May 2026
Counties with the most capacity
Largest operators in Arizona
Arizona Public Service Co20 plants · 9,270 MW
Salt River Project17 plants · 8,745 MW
Tucson Electric Power Co10 plants · 2,937 MW
U S Bureau of Reclamation3 plants · 2,606 MW
AES Clean Energy7 plants · 2,089 MW
Grouped by EIA operator name. Parent companies are not merged.
All 198 plants in Arizona, by county
Apache County 2 plants
- Springerville Coal · 1,779.2 MW
- Coronado Coal · 821.8 MW
Cochise County 10 plants
- Apache Station Natural gas · 529 MW
- Roadrunner Solar and BESS Solar · 470 MW
- Babacomari Solar Solar · 160 MW
- Red Horse 2 Solar · 81 MW
- Apache Solar I Solar · 40 MW
- SR McNeal Solar · 40 MW
- Red Horse III Solar · 30 MW
- Douglas Oil · 26.1 MW
- Sulphur Springs Solar · 20 MW
- Fort Huachuca Solar PV Project Solar · 17.7 MW
Coconino County 5 plants
- Glen Canyon Dam Hydro · 1,312 MW
- Chevelon Butte Wind Farm Wind · 238.2 MW
- Chevelon Butte Phase 2 Wind · 216 MW
- Babbitt Ranch Energy Center Wind · 163 MW
- Perrin Ranch Wind LLC Wind · 99.2 MW
Gila County 1 plant
- Poseidon Solar, LLC Solar · 20 MW
La Paz County 5 plants
- Centennial Flats Solar · 511.4 MW
- Atlas VII Battery storage · 300 MW
- ATLAS Solar V, LLC Solar · 200 MW
- Atlas IX Battery storage · 150 MW
- OE_AZ1 Solar · 32.5 MW
Maricopa County 78 plants
- Palo Verde Nuclear · 4,209.6 MW
- Santan Natural gas · 1,326 MW
- Harquahala Generating Project Natural gas · 1,277.1 MW
- West Phoenix Natural gas · 1,207.4 MW
- Red Hawk Natural gas · 1,127 MW
- Ocotillo Natural gas · 806.2 MW
- Sonoran Solar Energy Solar · 750 MW
- Agua Fria Natural gas · 737.5 MW
- Arlington Valley Energy Facility Natural gas · 713 MW
- Mesquite Generating Station Block 2 Natural gas · 691.6 MW
- Mesquite Generating Station Block 1 Natural gas · 691.6 MW
- Gila River Power Block 4 Natural gas · 619 MW
- Gila River Power Block 1 Natural gas · 619 MW
- Gila River Power Block 3 Natural gas · 619 MW
- Gila River Power Block 2 Natural gas · 619 MW
- Sun Streams 4 Solar · 600 MW
- Harquahala 2 Solar · 600 MW
- Maricopa Solar Solar · 550 MW
- Kyrene Natural gas · 488.4 MW
- Catclaw Solar Solar · 450 MW
- Sun Streams 3 Solar · 430 MW
- Papago Energy Storage Battery storage · 300 MW
- Solana Generating Station Solar · 280 MW
- Sierra Estrella Energy Storage Battery storage · 250 MW
- Beehive Energy Storage Battery storage · 250 MW
- Pediment BESS I Battery storage · 250 MW
- Westwing Battery storage · 200 MW
- Mesquite Solar 1 Solar · 170 MW
- Scatter Wash 1 Battery storage · 170 MW
- Sun Pond Solar · 170 MW
- Sun Streams, LLC Solar · 160 MW
- Mesquite Solar 3, LLC Solar · 150 MW
- Sun Streams 2 Solar · 150 MW
- Harquahala Sun Solar Project Solar · 150 MW
- Agave Solar · 150 MW
- Papago PV Solar · 150 MW
- Justice Energy Storage Battery storage · 150 MW
- Arlington Valley Solar Energy II Solar · 129 MW
- Arlington Valley Solar Energy I Solar · 127 MW
- Mesquite Solar 5, LLC Solar · 120 MW
- Horse Mesa Pumped storage · 119.6 MW
- Mesquite Solar 2, LLC Solar · 100 MW
- Superstition Energy Storage Battery storage · 90 MW
- Scatter Wash 2 Battery storage · 85 MW
- Red Rock Solar · 84.9 MW
- Pluto Energy Storage Battery storage · 75 MW
- Gila Bend Hybrid Solar · 68 MW
- Mormon Flat Pumped storage · 63.5 MW
- Mesquite Solar 4, LLC Solar · 62.5 MW
- El Sol BESS Battery storage · 50 MW
- Waddell Pumped storage · 40 MW
- Roosevelt Hydro · 36 MW
- Cotton Center Solar Hybrid Solar · 34 MW
- Paloma Solar Hybrid Solar · 34 MW
- Desert Star Hybrid Solar · 20 MW
- Queen Creek Solar Farm Solar · 19 MW
- Arizona State University CHP Natural gas · 17.1 MW
- Saddle Mountain Solar I Solar · 15 MW
- RE Gillespie 1 LLC Solar · 15 MW
- Badger 1 Solar · 14.8 MW
- Stewart Mountain Hydro · 13 MW
- Luke Solar Solar · 11.2 MW
- Lake Pleasant WTP Solar · 6.5 MW
- Mesa Carport PV Solar · 4.6 MW
- Intel - Ocotillo Campus Solar Solar · 4.2 MW
- Buckeye Union HS District 201 Solar · 3.3 MW
- Northwest Regional Landfill gas · 3.2 MW
- Macys Goodyear Solar · 3.1 MW
- TJX Phoenix Solar · 2.9 MW
- Amazon Goodyear Solar · 2.4 MW
- AZ State University - Tempe Campus Solar Solar · 2.2 MW
- Gilbert Solar Facility I, LLC Solar · 2 MW
- Estrella Mountain PV Solar · 1.8 MW
- Phoenix Airport Rental Car Center Solar · 1.6 MW
- Paradise Valley H.S. PV Solar · 1.3 MW
- T0588 Phoenix - AZ Solar · 1.2 MW
- Jewish Community Center PV Solar · 1.1 MW
- Phoenix Airport East Economy Lot Solar · 1.1 MW
Mohave County 15 plants
- Hoover Dam (AZ) Hydro · 1,039.4 MW
- South Point Energy Center Natural gas · 708 MW
- Griffith Energy LLC Natural gas · 655 MW
- Mohave County Wind Farm Wind · 350 MW
- Davis Dam Hydro · 254.8 MW
- Black Mountain Generating Station Natural gas · 121 MW
- Gray Hawk Solar Solar · 55 MW
- Kingman Energy Storage Battery storage · 50 MW
- Mohave Energy - Hybrid Solar · 32.6 MW
- Mohave Electric Cooperative at Joy Lane Solar · 25.9 MW
- Kingman 1 Wind · 10.5 MW
- Black Mountain Solar LLC Solar · 9 MW
- Mohave Electric at Fort Mohave Solar · 4.4 MW
- Jacobson 5 MW Solar Solar · 4.4 MW
- La Senita Solar · 1 MW
Pima County 38 plants
- H Wilson Sundt Generating Station Natural gas · 528.9 MW
- Serrano Solar · 383.8 MW
- Roadrunner Reserve Phase 1 Battery storage · 200 MW
- Roadrunner Reserve Phase 2 Battery storage · 200 MW
- Wilmot Energy Center II Solar · 200 MW
- Wilmot Energy Center LLC Solar · 160 MW
- North Loop Natural gas · 107.8 MW
- Demoss Petrie Natural gas · 85 MW
- Avalon Solar Solar · 29 MW
- Avra Valley Solar Solar · 25 MW
- Picture Rocks Solar, LLC Solar · 20 MW
- Avalon Solar II Solar · 16 MW
- Davis Monthan AFB (AZ) West Airfield Solar · 12.6 MW
- Raptor Ridge Solar · 12.5 MW
- Iron Horse Battery Storage Hybrid Solar · 12 MW
- Valencia Solar Solar · 10 MW
- Pima Energy Storage System Battery storage · 10 MW
- Cogeneration 1 Natural gas · 9 MW
- Tucson - CAVSARP Solar · 7.2 MW
- Cogeneration 2 Natural gas · 5.5 MW
- Gato Montes Solar, LLC Solar · 5 MW
- Tech Park Solar Solar · 5 MW
- RE Ajo 1 LLC Solar · 4.5 MW
- Prairie Fire Solar · 4.5 MW
- Actus Lend Lease DMAFB Solar · 3 MW
- Broadway 2 - Tucson Phase II Solar · 3 MW
- Amazon TUS2 Solar · 2.6 MW
- FRB Solar Farm Solar · 1.9 MW
- Canyon Del Oro High School Solar Solar · 1.6 MW
- Pima Community College - East Campus Solar · 1.3 MW
- Pima Community College NW Solar · 1.3 MW
- UASTP I Solar · 1.2 MW
- Roger Road WWTP Solar · 1.1 MW
- Pima Community College Solar · 1.1 MW
- Cogenra - TEP Solar · 1 MW
- Amphitheater High School Solar Solar · 1 MW
- Broadway 3 - Tucson Phase I Solar · 1 MW
- TJX Tucson Solar · 1 MW
Pinal County 20 plants
- Coolidge Generation Station Natural gas · 1,023 MW
- Desert Basin Natural gas · 745.1 MW
- Sundance Natural gas · 695 MW
- Eleven Mile Solar Center Solar · 600 MW
- Box Canyon (AZ) Solar · 300 MW
- Storey Solar and Storage Solar · 210 MW
- Saint Solar Solar · 200 MW
- Brittlebush Solar Solar · 200 MW
- Flatland Storage Battery storage · 200 MW
- Saguaro Natural gas · 184.5 MW
- Copper Crossing Energy and Research Cent Natural gas · 153.4 MW
- East Line Solar Solar · 100 MW
- Central Line Solar, LLC Solar · 100 MW
- West Line Solar, LLC Solar · 100 MW
- Bonnybrooke PV Solar · 50 MW
- Sandstone Solar Solar · 45 MW
- Pinal Central Energy Center Hybrid Solar · 30 MW
- Union HS at Casa Grande Solar · 1.6 MW
- Vista Grande HS at Casa Grande Solar · 1.4 MW
- Banner Solar Ironwood Solar · 1.4 MW
Santa Cruz County 2 plants
- Valencia Natural gas · 54 MW
- Rio Rico Solar Solar · 6 MW
Yavapai County 4 plants
- Chino Valley Solar Solar · 38 MW
- RE Bagdad Solar I LLC Solar · 14.9 MW
- Prescott Solar Plant Solar · 10.8 MW
- Prescott Airport Solar · 3 MW
Yuma County 13 plants
- McFarland B Solar and Storage Solar · 450 MW
- Yucca Natural gas · 422.4 MW
- Agua Caliente Solar Project Solar · 347.7 MW
- McFarland A Solar and Storage Solar · 300 MW
- McFarland C Battery storage · 185 MW
- White Wing Solar Solar · 179 MW
- Yuma Solar + Storage Solar · 140 MW
- Sierra Pinta BESS Battery storage · 113 MW
- Foothills Solar Plant Hybrid Solar · 73 MW
- Yuma Cogeneration Associates Natural gas · 62.6 MW
- Hyder Solar Hybrid Solar · 48 MW
- Hyder II Hybrid Solar · 28 MW
- Arizona Western College PV Solar · 4.7 MW
Questions about power plants in Arizona
How many power plants are in Arizona?
EIA-860M for August 2026 lists 198 operating power projects in Arizona, with 44,502 MW of nameplate capacity including batteries.
What is the largest power plant in Arizona?
Palo Verde in Maricopa County, with 4,209.6 MW of nameplate capacity. The next largest is Springerville, with 1,779.2 MW.
How much of Arizona's capacity is solar?
8,828 MW, about 20% of nameplate capacity. 123 projects have solar as their primary fuel.
Source: EIA-860M August 2026, published 2026-09-24. Page updated 2026-10-04. Data sources