WhereNuc · All sites · United States

🇺🇸 Seabrook

Name: Seabrook
Address: United States

Nuclear power plant · United States

Operational

Capacity≈1,149 MW

Units1

First Online1990

Construction Start1976

Reactor power (NRC)100% avg · 2026-09-03

Reactor TypePWR

Coordinates42.897, -70.849

Seabrook is a nuclear power station in United States. Of its 1 recorded unit(s), 1 reactor is operational. Combined net capacity of the operating units is about 1,149 MW. As of 2026-09-03, 1 of 1 reactor at this site was generating, according to the U.S. NRC daily status report. The first unit reached commercial operation in 1990. Reactor technology on site: PWR.

Reactor units at Seabrook

Unit	Status	Reactor type	Net capacity	Key dates
Seabrook-1	Operational	PWR WH 4LP (DRYAMB)	1,149 MW	Construction 1976 · Grid 1990

🌍 View on the live 3D globe →

Other nuclear sites in United States

Vogtle Palo Verde Browns Ferry Summer Millstone Oconee San Onofre South Texas Watts Bar McGuire Comanche Peak Sequoyah

Contains information from GeoNuclearData, made available under the ODbL. Sources & methodology. Data compiled from open datasets (GeoNuclearData and operator reports); figures are approximate — verify official status with IAEA PRIS. See the United States nuclear overview or browse all nuclear sites.