NH · State grid profile
New Hampshire power grid
New Hampshire's operating portfolio is led by Oil & gas, followed by Nuclear. Its 60 plants represent 4,730 MW of nameplate capacity. No proposed generators appear in this release.
Final 2024 state totalsPreliminary 2025 facilitiesCommunity-reported data centers
Coverage quality
What is complete here?
Generation portfolio
New Hampshire capacity by fuel
Oil & gas40.6%1,921 MW
Nuclear26.3%1,242 MW
Coal11.8%559 MW
Hydro10.9%516 MW
Biomass5.5%261 MW
Wind4.5%214 MW
Storage0.3%14 MW
Solar0.1%2 MW
Facility intelligence
Largest New Hampshire power plants
| Plant | Primary fuel | Location | Utility | Operating capacity |
|---|---|---|---|---|
| SeabrookPlant 6115 | Nuclear | Seabrook, NHRockingham County | NextEra Energy Seabrook LLC | 1,242 MW |
| Granite RidgePlant 55170 | Oil & gas | Londonderry, NHRockingham County | Granite Ridge Energy LLC | 790 MW |
| Newington Energy CenterPlant 55661 | Oil & gas | Newington, NHRockingham County | Essential Power Operating Services, LLC | 606 MW |
| MerrimackPlant 2364 | Coal | Bow, NHMerrimack County | Granite Shore Power | 496 MW |
| NewingtonPlant 8002 | Oil & gas | Newington, NHRockingham County | Granite Shore Power | 414 MW |
| S C MoorePlant 2351 | Hydro | Littleton, NHGrafton County | Great River Hydro, LLC | 195 MW |
| ComerfordPlant 2349 | Hydro | Monroe, NHGrafton County | Great River Hydro, LLC | 168 MW |
| Granite Reliable PowerPlant 58004 | Wind | Dummer, NHCoos County | NexteraEnergy | 99 MW |
| Burgess BioPowerPlant 58054 | Biomass | Berlin, NHCoos County | Berlin Station, LLC | 75 MW |
| Groton Wind LLCPlant 58141 | Wind | Groton, NHGrafton County | Avangrid Power LLC | 48 MW |
Methodology
Transparent by design
State totals and fuel mix use finalized EIA-860 2024 generator data. The facility table uses the EIA-860 2025 Early Release and is preliminary. Data-center counts use OpenStreetMap community records and measure mapped coverage, not the full market.