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Preliminary 2025 facility recordOperating

Seabrook, NH · EIA plant 6115

Seabrook

Seabrook is a nuclear power facility in Seabrook, NH, with 1,242 MW of operating capacity.

Open on mapView NH profileOpen EIA source
Operating capacity1,242 MW1 operating generators
Proposed capacity0 MW0 proposed generators
UtilityNextEra Energy Seabrook LLCEIA-reported operator
Balancing authorityISNEISO New England Inc.

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Nuclear1,242 MW
ProposedNo proposed capacity reported
Reported technologiesNuclear

Nearby in NH

Related facilities

NH · 2.7 miHampton Facility5 MW →NH · 14.1 miSchiller21 MW →NH · 14.2 miNewington414 MW →NH · 14.4 miNewington Energy Center606 MW →

Source quality

Preliminary facility data

This page uses the EIA-860 2025 Early Release. EIA identifies the release as preliminary, so it should not be used for official state or national aggregation. Capacity is nameplate capacity, not real-time output or annual generation.

Read methodologyEIA-860 source