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Seabrook 1 Lifecycle: Commissioned Reactor: ONLINE

NextEra Energy, Inc. with principal subsidiaries Florida Power & Light Co. and NextEra Energy Resources, LLC · Seabrook
FPL
Jobs ( NH)
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Seabrook from the Water
Seabrook from the Water

Contact Information

Address: 626 Lafayette Road
Seabrook, NH 3874
Phone: (516) 929-8300
Website: http://www.nexteraenergyresources.com/

Technical Specifications

Reactor Type: PWR ( PWR-DRYAMB)
Net Output: 1250 MWe
Thermal Power: 3648 MWt
Efficiency: 34.27%

Licensing & Regulatory Details

Docket #: 05000443
License #: NPF-86 ( OL-FP)
Construction Permit: 1976-07-07
Operating License: 1990-03-15
License Renewed: 2019-03-12
Commercial Ops: 1990-08-19
Expiration Date: 2050-03-15

Site History & Construction

NSS Supplier: WEST 4LP
Constructor: UE&C
Architect Engineer: UE&C

Current Reactor Status (NRC Data)

100%
ONLINE
Report Date:
March 9, 2026
Lifecycle: Commissioned | Reactor: ONLINE
Recent Power History
Date Power Level Visual
Mar 9 100%
Mar 6 100%
Mar 5 100%
Mar 4 100%
Mar 3 100%
Mar 2 100%
Mar 1 100%
Feb 28 100%
Feb 27 100%
Feb 26 100%
Feb 25 100%
Feb 24 100%
Feb 23 100%
Feb 22 100%

Upcoming Outage

Start Date Duration
2026-04-04 24 Days

Facility Statistics

Lifecycle & Tenure
Op. Age: 35.6 Yrs
Build Time: 14.1 Yrs
Lic. Remain: 24 Yrs
Production & Power
Lifetime CF: 90.6%
Efficiency: 34.3%
Generated: 269.7 TWh
Reliability & Outages
Record Run: 528 Days
Refuelings (Since '99): 18