Power plants and the grid in Hawaii
Hawaii has 76 power plants with 3.5 GW of capacity, oil the largest share at 1.9 GW.
Capacity by fuel
76 power plants with 3.5 GW of capacity, planned generators left out.
- Oil: 1.9 GW from 19 plants (54%)
- Solar: 890 MW from 34 plants (26%)
- Wind: 254 MW from 8 plants (7%)
- Battery storage: 185 MW from 1 plant (5%)
- Biomass: 158 MW from 4 plants (5%)
- Geothermal: 43 MW from 1 plant (1%)
- Hydro: 33 MW from 8 plants (1%)
- Other: 28 MW from 1 plant (1%)
Largest plants
- Kahe: Oil, 582 MW
- Waiau: Oil, 362 MW
- Kalaeloa Cogen Plant: Oil, 220 MW
- Maalaea: Oil, 198 MW
- Kapolei Energy Storage: Battery storage, 185 MW
- AES Maui Kuihelani Solar Hybrid: Solar, 120 MW
- Ho'Ohana Solar 1: Solar, 117 MW
- Campbell Industrial Park: Oil, 113 MW
- H Power: Biomass, 89 MW
- Waiawa Solar Power Hybrid: Solar, 82 MW
Largest plants near Honolulu
- Kahe: Oil, 582 MW, 28 km away
- Waiau: Oil, 362 MW, 14 km away
- Kalaeloa Cogen Plant: Oil, 220 MW, 25 km away
- Kapolei Energy Storage: Battery storage, 185 MW, 26 km away
- Ho'Ohana Solar 1: Solar, 117 MW, 22 km away
Planned and under construction
11 generators planned, under construction or testing, 467 MW in all, not counted above.
- Solar: 300 MW
- Biomass: 135 MW
- Battery storage: 32 MW
Grid operators
- HECO: 41 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