Seabrook Station Nuclear Power Plant
E505130
Seabrook Station Nuclear Power Plant is a commercial nuclear power facility in Seabrook, New Hampshire, known for its large pressurized water reactor and significant role in the region’s electricity generation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Seabrook Station Nuclear Power Plant canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5247296 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Seabrook Station Nuclear Power Plant Context triple: [Seabrook, New Hampshire, hasLandmark, Seabrook Station Nuclear Power Plant]
-
A.
Salem Nuclear Power Plant
Salem Nuclear Power Plant is a commercial nuclear power station in Lower Alloways Creek Township, New Jersey, that generates electricity using pressurized water reactors along the Delaware River.
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B.
Seabrook station
Seabrook station is a commuter rail stop in Seabrook, Maryland, served by MARC trains on the Penn Line between Washington, D.C., and Baltimore.
-
C.
Calvert Cliffs Nuclear Power Plant
Calvert Cliffs Nuclear Power Plant is a two-unit pressurized water nuclear power station on the western shore of the Chesapeake Bay that generates electricity for the Mid-Atlantic region.
-
D.
Springfield Nuclear Power Plant
The Springfield Nuclear Power Plant is the accident-prone workplace of Homer Simpson and a central setting in the animated television series "The Simpsons," symbolizing corporate greed, environmental hazards, and satirical takes on nuclear energy.
-
E.
Hope Creek Nuclear Generating Station
Hope Creek Nuclear Generating Station is a single-unit boiling water nuclear power plant located in Lower Alloways Creek Township, New Jersey, that generates electricity for the regional grid.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Seabrook Station Nuclear Power Plant Target entity description: Seabrook Station Nuclear Power Plant is a commercial nuclear power facility in Seabrook, New Hampshire, known for its large pressurized water reactor and significant role in the region’s electricity generation.
-
A.
Salem Nuclear Power Plant
Salem Nuclear Power Plant is a commercial nuclear power station in Lower Alloways Creek Township, New Jersey, that generates electricity using pressurized water reactors along the Delaware River.
-
B.
Seabrook station
Seabrook station is a commuter rail stop in Seabrook, Maryland, served by MARC trains on the Penn Line between Washington, D.C., and Baltimore.
-
C.
Calvert Cliffs Nuclear Power Plant
Calvert Cliffs Nuclear Power Plant is a two-unit pressurized water nuclear power station on the western shore of the Chesapeake Bay that generates electricity for the Mid-Atlantic region.
-
D.
Springfield Nuclear Power Plant
The Springfield Nuclear Power Plant is the accident-prone workplace of Homer Simpson and a central setting in the animated television series "The Simpsons," symbolizing corporate greed, environmental hazards, and satirical takes on nuclear energy.
-
E.
Hope Creek Nuclear Generating Station
Hope Creek Nuclear Generating Station is a single-unit boiling water nuclear power plant located in Lower Alloways Creek Township, New Jersey, that generates electricity for the regional grid.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
commercial power station
ⓘ
nuclear power plant ⓘ |
| commercialOperationDate | 1990-08-19 ⓘ |
| connectedTo | regional transmission network ⓘ |
| connectsToGridOf | New England power grid NERFINISHED ⓘ |
| constructionCost_USD | approximately 6.5 billion ⓘ |
| constructionStartDate | 1976-01-01 ⓘ |
| coolant | light water ⓘ |
| coolingSource | Atlantic Ocean NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electricalCapacity_MWe_gross | approximately 1300 ⓘ |
| electricalCapacity_MWe_net | approximately 1245 ⓘ |
| gridConnectionDate | 1989-06-15 ⓘ |
| gridOperator | ISO New England NERFINISHED ⓘ |
| hasContainmentType | reinforced concrete containment building ⓘ |
| hasCoolingTunnels | ocean water intake and discharge tunnels ⓘ |
| hasEmergencyPlanningZoneRadius_miles | 10 ⓘ |
| hasIndependentSpentFuelStorageInstallation | true ⓘ |
| hasIngestionPathwayZoneRadius_miles | 50 ⓘ |
| hasSpentFuelPool | true ⓘ |
| licenseExpirationYear | 2050 ⓘ |
| locatedIn |
New England
ⓘ
New Hampshire ⓘ Rockingham County, New Hampshire NERFINISHED ⓘ Seabrook, New Hampshire NERFINISHED ⓘ |
| moderator | light water ⓘ |
| near | Massachusetts state border ⓘ |
| nearbyBodyOfWater | Atlantic Ocean NERFINISHED ⓘ |
| notableFor |
large single-unit pressurized water reactor
ⓘ
significant share of New England electricity generation ⓘ |
| numberOfReactorUnits | 1 ⓘ |
| operator | NextEra Energy Seabrook, LLC NERFINISHED ⓘ |
| originalNumberOfPlannedUnits | 2 ⓘ |
| owner | NextEra Energy Resources NERFINISHED ⓘ |
| primaryFuel |
low-enriched uranium
ⓘ
uranium dioxide ⓘ |
| reactorModel | Westinghouse 4-loop PWR NERFINISHED ⓘ |
| reactorSupplier | Westinghouse Electric Company NERFINISHED ⓘ |
| reactorType | pressurized water reactor ⓘ |
| regulatoryAuthority | U.S. Nuclear Regulatory Commission NERFINISHED ⓘ |
| safetySystems | multiple redundant safety systems ⓘ |
| secondUnitStatus | cancelled ⓘ |
| seismicDesignCategory | designed for seismic events ⓘ |
| status | operational ⓘ |
| subjectOf | anti-nuclear protests in the 1970s and 1980s ⓘ |
| suppliesElectricityTo | New England region NERFINISHED ⓘ |
| thermalCapacity_MWt | approximately 3800 ⓘ |
| usesChemicalShim | boric acid in reactor coolant ⓘ |
| usesControlRodsMaterial | boron-containing alloys ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Seabrook Station Nuclear Power Plant Description of subject: Seabrook Station Nuclear Power Plant is a commercial nuclear power facility in Seabrook, New Hampshire, known for its large pressurized water reactor and significant role in the region’s electricity generation.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.