Salt River Project (SRP)
Salt River Project (SRP) is a balancing authority on the North American grid. On the map it has 46 power plants with 17.5 GW of capacity, natural gas the largest share at 9.2 GW. Its peak load is 7,393 MW.
At a glance
- Peak load: 7,393 MW
Capacity by fuel
46 power plants with 17.5 GW of capacity, planned generators left out.
- Natural gas: 9.2 GW from 13 plants (52%)
- Nuclear: 3.9 GW from 1 plant (22%)
- Solar: 2.2 GW from 17 plants (13%)
- Battery storage: 900 MW from 6 plants (5%)
- Coal: 762 MW from 1 plant (4%)
- Wind: 226 MW from 2 plants (1%)
- Pumped storage: 218 MW from 2 plants (1%)
- Hydro: 51 MW from 4 plants (under 1%)
Largest plants
- Palo Verde: Nuclear, 3.9 GW, Arizona
- Santan: Natural gas, 1.3 GW, Arizona
- Harquahala Generating Project: Natural gas, 1 GW, Arizona
- Red Hawk: Natural gas, 1 GW, Arizona
- Coolidge Generation Station: Natural gas, 773 MW, Arizona
- Coronado: Coal, 762 MW, Arizona
- Agua Fria: Natural gas, 741 MW, Arizona
- Desert Basin: Natural gas, 704 MW, Arizona
- Mesquite Generating Station Block 2: Natural gas, 624 MW, Arizona
- Mesquite Generating Station Block 1: Natural gas, 620 MW, Arizona
Planned and under construction
4 generators planned, under construction or testing, 1.2 GW in all, not counted above.
- Natural gas: 612 MW
- Battery storage: 550 MW
States and provinces
- Arizona: 46 plants
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)
Balancing authorities: HIFLD Control Areas (position, peak load); EIA-930 reference tables (which BAs are active); EIA-861 (a feature's BA); Wattlas outlines for Canadian and Mexican BAs. License: Public domain