Shippingport Atomic Power Station
E458525
Shippingport Atomic Power Station was the first full-scale commercial nuclear power plant in the United States and a landmark project that launched the nation’s civilian nuclear energy program.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Shippingport Atomic Power Station canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4661671 — 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: Shippingport Atomic Power Station Context triple: [United States nuclear energy program, historicalMilestone, Shippingport Atomic Power Station]
-
A.
Hatch Nuclear Power Plant
Hatch Nuclear Power Plant is a commercial nuclear power generating facility in Georgia that supplies electricity to the regional grid as part of Southern Company's energy portfolio.
-
B.
Enrico Fermi Nuclear Generating Station
The Enrico Fermi Nuclear Generating Station is a nuclear power plant complex located on the shore of Lake Erie in Michigan, known for housing multiple reactor units including the Fermi 2 boiling water reactor.
-
C.
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.
-
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.
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.
- 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: Shippingport Atomic Power Station Target entity description: Shippingport Atomic Power Station was the first full-scale commercial nuclear power plant in the United States and a landmark project that launched the nation’s civilian nuclear energy program.
-
A.
Hatch Nuclear Power Plant
Hatch Nuclear Power Plant is a commercial nuclear power generating facility in Georgia that supplies electricity to the regional grid as part of Southern Company's energy portfolio.
-
B.
Enrico Fermi Nuclear Generating Station
The Enrico Fermi Nuclear Generating Station is a nuclear power plant complex located on the shore of Lake Erie in Michigan, known for housing multiple reactor units including the Fermi 2 boiling water reactor.
-
C.
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.
-
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.
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.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
commercial nuclear power plant
ⓘ
nuclear power plant ⓘ pressurized water reactor ⓘ |
| announcedBy | Dwight D. Eisenhower NERFINISHED ⓘ |
| announcedYear | 1953 ⓘ |
| breedingRatio | greater than 1 (for LWBR core) ⓘ |
| builder | Duquesne Light Company NERFINISHED ⓘ |
| connectedToGridDate | 1957-12-18 ⓘ |
| connectedToUtilityGridOf | Duquesne Light Company NERFINISHED ⓘ |
| constructionStartDate | 1954-09-09 ⓘ |
| coolingSource | Ohio River NERFINISHED ⓘ |
| coreDesign | seed-and-blanket core ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| decommissioningEndDate | 1989 ⓘ |
| decommissioningStartDate | 1982 ⓘ |
| designedBy | Westinghouse Electric Corporation NERFINISHED ⓘ |
| electricalCapacity_MWe | 60 ⓘ |
| firstCriticalityDate | 1957-12-02 ⓘ |
| fuelType |
enriched uranium
ⓘ
thorium (in later core) ⓘ |
| gridConnectionVoltage_kV | 138 ⓘ |
| historicalDesignation | nuclear energy landmark ⓘ |
| initiatedUnder | Atoms for Peace program NERFINISHED ⓘ |
| laterCoreDesign | light water breeder reactor core ⓘ |
| locatedIn |
Beaver County, Pennsylvania
NERFINISHED
ⓘ
Shippingport, Pennsylvania NERFINISHED ⓘ |
| locatedOnRiver | Ohio River NERFINISHED ⓘ |
| moderator | light water ⓘ |
| officialOpeningDate | 1958-05-26 ⓘ |
| operatedBy | Duquesne Light Company NERFINISHED ⓘ |
| operatorType | public–private partnership ⓘ |
| ownedBy | United States Atomic Energy Commission NERFINISHED ⓘ |
| primaryCoolant | light water ⓘ |
| program | U.S. civilian nuclear energy program ⓘ |
| purpose | demonstration of civilian nuclear power ⓘ |
| reactorSupplier | Westinghouse Electric Corporation NERFINISHED ⓘ |
| reactorType | pressurized water reactor ⓘ |
| reactorVesselManufacturer | Westinghouse Electric Corporation NERFINISHED ⓘ |
| recognizedAs | Nuclear Historic Landmark ⓘ |
| recognizedBy | American Nuclear Society NERFINISHED ⓘ |
| shutdownDate | 1982-10-01 ⓘ |
| significance |
first full-scale commercial nuclear power plant in the United States
ⓘ
first large-scale central-station nuclear power plant dedicated to peaceful purposes ⓘ |
| siteReturnedToGreenfield | true ⓘ |
| status | decommissioned ⓘ |
| successorFacilityOnSite | Beaver Valley Nuclear Power Station NERFINISHED ⓘ |
| thermalCapacity_MWt | 236 ⓘ |
| thermalReactor | true ⓘ |
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: Shippingport Atomic Power Station Description of subject: Shippingport Atomic Power Station was the first full-scale commercial nuclear power plant in the United States and a landmark project that launched the nation’s civilian nuclear energy program.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.