Natural Gas Power Plants in Maine
Every operating natural gas power plant in Maine on EIA-860M for 2026-07: 5 plants, 10 generating units and 2 GW of nameplate capacity across 4 counties, most of it inside ISO New England.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Plants
- 5
- 10 generating units
- Nameplate capacity
- 2 GW
- Counties
- 4
- Grid operator
- ISO New England
- covers most of these plants
Map of natural gas power plants in Maine
Every one of the 5 plants is drawn at the coordinate EIA files for it.
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- Natural gas · 5
List of natural gas power plants in Maine
Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.
| Westbrook Energy Center Power PlantNatural Gas Fired Combined Cycle | Westbrook Energy Center | Cumberland | 563.9 | 3 | 2001 | Operating |
| Maine Independence StationNatural Gas Fired Combined Cycle | Casco Bay Energy Co LLC | Penobscot | 550.2 | 3 | 2000 | Operating |
| Rumford Power LLCNatural Gas Fired Combined Cycle | Rumford Power | Oxford | 274.5 | 2 | 2000 | Operating |
| Bucksport Generation LLCNatural Gas Fired Combustion Turbine | Bucksport Generation LLC | Hancock | 186.8 | 1 | 2001 | Operating |
| Eastern Maine Medical CenterNatural Gas Fired Combustion Turbine | Eastern Maine Medical Center | Penobscot | 3.8 | 1 | 2006 | Operating |
Largest natural gas power plants in Maine
- 1Westbrook Energy Center Power PlantCumberland County, Maine563.9 MW
- 2Maine Independence StationPenobscot County, Maine550.2 MW
- 3Rumford Power LLCOxford County, Maine274.5 MW
- 4Bucksport Generation LLCHancock County, Maine186.8 MW
- 5Eastern Maine Medical CenterPenobscot County, Maine3.8 MW
Natural gas power plants by county in Maine
The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.
| County | Plants | Nameplate MW |
|---|---|---|
| Cumberland | 1 | 563.9 |
| Penobscot | 2 | 554 |
| Oxford | 1 | 274.5 |
| Hancock | 1 | 186.8 |
Natural Gas Power Plants in Maine: FAQ
- How many natural gas power plants are in Maine?
- 5, with 2 GW of nameplate capacity between them, spread over 4 counties. That is the EIA-860M operating count for 2026-07.
- Is there a map of Maine natural gas power plants?
- Yes — the map above. Each dot is one natural gas power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
- Which is the largest natural gas power plant in Maine?
- Westbrook Energy Center Power Plant, at 564 MW. The table is sorted largest first, so the rest follow it.
- Is there a natural gas power plant near me in Maine?
- The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
- Which grid operator runs Maine's natural gas power plants?
- Most of them sit inside ISO New England, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.
- How current is this, and what is left out?
- EIA-860M for 2026-07. Combined cycle, combustion turbine, steam turbine, internal combustion and other gas-fired units. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.