Power plant · New Hampshire, United States

Seabrook

Seabrook is a power plant in New Hampshire, United States, with 1,242 MW of capacity, owned by NextEra Energy Seabrook LLC (88.2%), Massachusetts Mun Wholes Electric Co (11.6%), City of Taunton - (MA) (0.1%) and 1 other.

Facts

Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.

Fact	Value	Source
Location	New Hampshire	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Status	Operating	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Start year	1990	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Owner	NextEra Energy Seabrook LLC (88.2%)	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Owner	Massachusetts Mun Wholes Electric Co (11.6%)	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Owner	City of Taunton - (MA) (0.1%)	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Owner	Town of Hudson - (MA) (0.1%)	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Operator	NextEra Energy Seabrook LLC	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Capacity	1,242 MW	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Technology	Nuclear	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Coordinates	42.8992, -70.8489	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026

Research on this power plant and its owner.Who owns it up to the parent company, its grid connection and planning status, and an introduction to the owner.

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How it compares

Seabrook is the largest of 4 power plants in New Hampshire and the 205th-largest of 800 in the United States by capacity; its 1,242 MW is 0.15% of the 839,036 MW we hold for the United States. Ranks and totals cover the power plants in our data that report their capacity, not every one in existence. Power plants planned, permitted or under construction are ranked apart.

Within	Rank	Total	Share
New Hampshire	1st of 4	3,134 MW	40%
United States	205th of 800	839,036 MW	0.15%
All power plants in our data	229th of 12,032	1,190,447 MW	0.1%

Nearby

Within 50 km of this power plant: 5 data centers, measured from the coordinates in the facts above. The table shows the nearest 3.

Name	Kind	Size	Status	Distance
Information Technology Data Center	Data center	—	—	12 km
FirstLight data center, Portsmouth	Data center	—	—	20 km
University of New Hampshire data center, Strafford County	Data center	—	—	28 km

Owners, operator and place

NextEra Energy Seabrook LLCOwner · 88.2%
Massachusetts Mun Wholes Electric CoOwner · 11.6%
City of Taunton - (MA)Owner · 0.1%
Town of Hudson - (MA)Owner · 0.1%
NextEra Energy Seabrook LLCOperator
Power plants in New Hampshire, United States4
Power plants in the United States1,635
The United States: country profile
Largest power plants

Other power plants in New Hampshire

All 4 power plants in New Hampshire, United States

Data on this page

Contains public sector information licensed under the Open Government Licence v3.0. DESNZ Renewable Energy Planning Database (REPD), Open Government Licence v3.0.
Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
JRC Open Power Plants Database (JRC-PPDB-OPEN), European Commission, Joint Research Centre. JRC Open Power Plants Database (JRC-PPDB-OPEN), CC BY 4.0.
Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.
Dutch power station owners' and operators' pages. Dutch power station owners' and operators' pages, Facts only, each linked to its page.
Contains public sector information licensed under the Open Government Licence v3.0. Planning Inspectorate: National Infrastructure Projects, Open Government Licence v3.0.
RVO SDE(+)(+) projecten in beheer and SDE viewer. RVO SDE(+)(+) projecten in beheer and SDE viewer, Free reuse, no attribution required.