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Seabrook Station

Seabrook Station

Seabrook Station is a 1,244-megawatt nuclear generating plant located in Seabrook, New Hampshire.

Seabrook Station, Seabrook, N.H.


An operating license for Seabrook was issued in 1986, and the plant began commercial operation in 1990. The principal owner and operator of Seabrook Station is NextEra Energy Resources LLC, a subsidiary of Florida-based FPL Group, Inc. NextEra owns 88.2% of Seabrook Station. The other owners are MMWEC (11.59%) and two Massachusetts municipal utilities, the Taunton Municipal Lighting Plant (0.1%) and the Hudson Light & Power Department (0.08%).

licensing/Project Participants

The Nuclear Regulatory Commission on March 19, 2019 approved NextEra Energy’s request for a 20-year operating license extension for Seabrook Station. The license now expires in March 2050.

MMWEC’s Seabrook Project Participants include 28 Massachusetts municipal utilities based in the communities of Ashburnham, Boylston, Braintree, Danvers, Georgetown, Groton, Hingham, Holden, Holyoke, Hudson, Hull, Ipswich, Littleton, Mansfield, Marblehead, Middleborough, Middleton, North Attleborough, Paxton, Peabody, Reading, Shrewsbury, South Hadley, Sterling, Templeton, Wakefield, West Boylston and Westfield. The Pascoag (Rhode Island) Utility District also is an MMWEC Seabrook Project Participant.


As one of the two remaining nuclear assets in New England, Seabrook Station safely and reliably generates electricity for the benefit of 1.2 million families and businesses. The 1250-megawatt unit generates ~10 million megawatt-hours of 24/7/365 baseload power, preventing the emission of nearly four million tons of carbon dioxide, which is the equivalent of taking almost 700,000 cars off the road. The plant is operated in a highly responsible manner, and the Seabrook Station team is dedicated to protecting the environment while meeting the energy needs of the region.

Quick Facts - Seabrook Station

Location: Seabrook, New Hampshire
On-Line Date: 1990
Fuel: Nuclear – Pressurized Water Reactor
Principal Owner/Operator: NextEra Energy Resources LLC
Total Capacity: 1,244 megawatts
MMWEC Ownership: 144 megawatts