Power plants and the grid in Alaska
Alaska has 146 power plants with 2.9 GW of capacity, natural gas the largest share at 1.3 GW.
Capacity by fuel
146 power plants with 2.9 GW of capacity, planned generators left out.
- Natural gas: 1.3 GW from 14 plants (45%)
- Oil: 730 MW from 86 plants (25%)
- Hydro: 470 MW from 28 plants (16%)
- Coal: 191 MW from 5 plants (7%)
- Battery storage: 86 MW from 5 plants (3%)
- Wind: 79 MW from 6 plants (3%)
- Biomass: 7 MW from 1 plant (under 1%)
- Solar: 6 MW from 1 plant (under 1%)
Largest plants
- George M Sullivan Generation Plant 2: Natural gas, 309 MW
- Beluga: Natural gas, 300 MW
- Southcentral Power Project: Natural gas, 170 MW
- Eklutna Generation Station: Natural gas, 165 MW
- North Pole: Oil, 145 MW
- Bradley Lake: Hydro, 126 MW
- Soldotna: Natural gas, 91 MW
- Snettisham: Hydro, 78 MW
- Healy: Coal, 78 MW
- Nikiski Combined Cycle: Natural gas, 76 MW
Largest plants near Anchorage
- George M Sullivan Generation Plant 2: Natural gas, 309 MW, 10 km away
- Southcentral Power Project: Natural gas, 170 MW, 6 km away
- Eklutna Generation Station: Natural gas, 165 MW, 39 km away
- Hank Nikkels Plant 1: Natural gas, 62 MW, 2 km away
- Eklutna Hydro Project: Hydro, 44 MW, 49 km away
Planned and under construction
2 generators planned, under construction or testing, 29 MW in all, not counted above.
- Hydro: 29 MW
Grid operators
- CEA: 18 plants
- AMPL: 7 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)
Places gazetteer (cities, airports, regions): Natural Earth populated places; OurAirports; Natural Earth admin-1; Wattlas curated places. License: Public domain
States and provinces (simplified polygons): Natural Earth 10m admin-1. License: Public domain