Power plants and the grid in Maine
Maine has 274 power plants with 5.9 GW of capacity, natural gas the largest share at 1.5 GW. The map shows 6 data centers in Maine. Its interconnection queue holds 16 active requests for 1 GW.
Capacity by fuel
274 power plants with 5.9 GW of capacity, planned generators left out.
- Natural gas: 1.5 GW from 5 plants (25%)
- Wind: 1.2 GW from 22 plants (20%)
- Solar: 956 MW from 175 plants (16%)
- Oil: 862 MW from 3 plants (14%)
- Hydro: 719 MW from 48 plants (12%)
- Biomass: 512 MW from 15 plants (9%)
- Battery storage: 203 MW from 5 plants (3%)
- Other: 22 MW from 1 plant (under 1%)
Largest plants
- William F Wyman Hybrid: Oil, 827 MW
- Westbrook Energy Center Power Plant: Natural gas, 527 MW
- Maine Independence Station: Natural gas, 498 MW
- Rumford Power LLC: Natural gas, 254 MW
- Bingham Wind: Wind, 186 MW
- Bucksport Generation LLC: Natural gas, 178 MW
- Cross Town Energy Storage: Battery storage, 175 MW
- Great Lakes Hydro America - ME: Hydro, 153 MW
- Oakfield Wind Project: Wind, 148 MW
- Kibby Wind Facility: Wind, 132 MW
Planned and under construction
14 generators planned, under construction or testing, 591 MW in all, not counted above.
- Solar: 576 MW
- Battery storage: 15 MW
Grid operators
- ISO-NE (ISO or RTO): 265 plants
- New Brunswick (NBSO): 9 plants
Data centers
6 data center sites on the map.
- Cumberland County: 3 sites
- Operators with the most sites: FirstLight (3), EnablesIT (1), LiquidCool Data Center (1)
Interconnection queue
16 active requests to connect 1 GW of new generation and storage, from Lawrence Berkeley National Laboratory's Queued Up data.
- Solar: 1 GW in 15 requests
- Wind: 18 MW in 1 request
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)
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