Power plants and the grid in Arizona
Arizona has 204 power plants with 41.6 GW of capacity, natural gas the largest share at 15.5 GW. The map shows 92 data centers in Arizona. Its interconnection queue holds 274 active requests for 106.9 GW.
Capacity by fuel
204 power plants with 41.6 GW of capacity, planned generators left out.
- Natural gas: 15.5 GW from 33 plants (37%)
- Solar: 10.9 GW from 118 plants (26%)
- Battery storage: 4.3 GW from 26 plants (10%)
- Nuclear: 3.9 GW from 1 plant (9%)
- Hydro: 2.7 GW from 8 plants (6%)
- Coal: 2.4 GW from 2 plants (6%)
- Wind: 1.7 GW from 9 plants (4%)
- Pumped storage: 258 MW from 3 plants (1%)
- Biomass: 28 MW from 3 plants (under 1%)
- Oil: 15 MW from 1 plant (under 1%)
Largest plants
- Palo Verde: Nuclear, 3.9 GW
- Springerville: Coal, 1.6 GW
- Glen Canyon Dam: Hydro, 1.3 GW
- Santan: Natural gas, 1.3 GW
- Harquahala Generating Project: Natural gas, 1 GW
- Hoover Dam (AZ): Hydro, 1 GW
- Red Hawk: Natural gas, 1 GW
- West Phoenix: Natural gas, 929 MW
- Coolidge Generation Station: Natural gas, 773 MW
- Coronado: Coal, 762 MW
Largest plants near Phoenix
- Santan: Natural gas, 1.3 GW, 32 km away
- West Phoenix: Natural gas, 929 MW, 8 km away
- Agua Fria: Natural gas, 741 MW, 18 km away
- Ocotillo: Natural gas, 615 MW, 15 km away
- Sonoran Solar Energy: Solar, 520 MW, 49 km away
Largest plants near Mesa
- Santan: Natural gas, 1.3 GW, 10 km away
- West Phoenix: Natural gas, 929 MW, 39 km away
- Agua Fria: Natural gas, 741 MW, 47 km away
- Ocotillo: Natural gas, 615 MW, 16 km away
- Kyrene: Natural gas, 519 MW, 20 km away
Largest plants near Tucson
- H Wilson Sundt Generating Station: Natural gas, 490 MW, 5 km away
- Roadrunner Reserve Phase 1: Battery storage, 200 MW, 17 km away
- Roadrunner Reserve Phase 2: Battery storage, 200 MW, 16 km away
- Wilmot Energy Center LLC: Solar, 130 MW, 18 km away
- North Loop: Natural gas, 95 MW, 31 km away
Largest plants near Glendale
- Santan: Natural gas, 1.3 GW, 50 km away
- West Phoenix: Natural gas, 929 MW, 16 km away
- Agua Fria: Natural gas, 741 MW, 3 km away
- Ocotillo: Natural gas, 615 MW, 32 km away
- Sonoran Solar Energy: Solar, 520 MW, 49 km away
Planned and under construction
41 generators planned, under construction or testing, 15.2 GW in all, not counted above.
- Solar: 10.5 GW
- Battery storage: 2.8 GW
- Natural gas: 1.9 GW
Grid operators
- CAISO (ISO or RTO): 14 plants
- Arizona Public Service (AZPS): 75 plants
- Tucson Electric Power Company (TEPC): 48 plants
- Salt River Project (SRP): 46 plants
- Western Area Power Administration - Desert Southwest Region (WALC): 19 plants
- DEAA: 1 plant
- GRIF: 1 plant
Data centers
92 data center sites on the map.
- Maricopa County: 84 sites
- Pima County: 5 sites
- Operators with the most sites: NTT (8), CyrusOne (5), Iron Mountain (5), Microsoft (5), Digital Realty (3), EdgeConneX (3), Centersquare (formerly Evoque) (2), Compass Datacenters (2), Digital Realty Trust (2), DirecTV (2)
Interconnection queue
274 active requests to connect 106.9 GW of new generation and storage, and 8 suspended requests, from Lawrence Berkeley National Laboratory's Queued Up data.
- Solar: 66.8 GW in 131 requests
- Other: 19.9 GW in 70 requests
- Battery storage: 10.6 GW in 42 requests
- Wind: 5.2 GW in 15 requests
- Natural gas: 4.3 GW in 16 requests
Sources
Power plants: EIA-860M (US); NRCan NACEI (Canada, Mexico); WRI GPPD (Mexico); OpenStreetMap via Geofabrik (Canada, Mexico gap fill); USGS USWTDB/USPVDB; EPA eGRID; Natural Earth admin-1; HIFLD control areas; location attributes from WorldPop (R2025A), Global Solar Atlas PVOUT, Global Wind Atlas 4, USFS Wildfire Hazard Potential, the USGS National Seismic Hazard Model and the previous publish's lines and substations; water distances from OpenStreetMap via Geofabrik; gas distances and county queue from the previous publish's EIA gas pipelines and LBNL Queued Up requests; nearest city from Natural Earth populated places; cooling degree days from NOAA NCEI nClimDiv county normals; elevation and slope from the Copernicus DEM GLO-30 (ESA, via AWS Open Data); water stress from WRI Aqueduct 4.0; ozone nonattainment from the EPA Green Book; drought from the U.S. Drought Monitor; tribal land from US Census TIGER/Line. License: ODbL (derivative database; EIA content is public domain, NRCan OGL-Canada, WRI GPPD CC BY 4.0; location attributes from WorldPop, Global Solar Atlas, Global Wind Atlas, LBNL Queued Up and WRI Aqueduct CC BY 4.0, USFS, USGS, EIA, NOAA, EPA, US Census and Natural Earth public domain, Copernicus DEM GLO-30 © DLR e.V. and Airbus Defence and Space GmbH, the U.S. Drought Monitor courtesy of NDMC)
Places gazetteer (cities, airports, regions): Natural Earth populated places; OurAirports; Natural Earth admin-1; Wattlas curated places. License: Public domain
Data centers: Epoch AI (CC BY); OpenStreetMap via the public Overpass API (ODbL, © OpenStreetMap contributors); Ringmast4r Global-Data-Center-Map (custom permissive license, attribution required); location attributes from WorldPop (R2025A), Global Solar Atlas PVOUT, Global Wind Atlas 4, USFS Wildfire Hazard Potential, the USGS National Seismic Hazard Model and the previous publish's lines and substations; gas distances and county queue from the previous publish's EIA gas pipelines and LBNL Queued Up requests; nearest city from Natural Earth populated places; generation within 20 km from the previous publish's plants; cooling degree days from NOAA NCEI nClimDiv county normals; elevation and slope from the Copernicus DEM GLO-30 (ESA, via AWS Open Data); water stress from WRI Aqueduct 4.0; ozone nonattainment from the EPA Green Book; drought from the U.S. Drought Monitor; tribal land from US Census TIGER/Line. License: CC BY; ODbL; custom permissive; WRI Aqueduct CC BY 4.0; USFS, USGS, EIA, NOAA, EPA, US Census and Natural Earth public domain; Copernicus DEM GLO-30 © DLR e.V. and Airbus Defence and Space GmbH; the U.S. Drought Monitor courtesy of NDMC
Interconnection queue requests: Lawrence Berkeley National Laboratory and GridTracker, "Queued Up". License: CC BY 4.0
States and provinces (simplified polygons): Natural Earth 10m admin-1. License: Public domain