Davis–Besse Nuclear Power Station
E798377
Davis–Besse Nuclear Power Station is a commercial nuclear power plant in Ohio known for its pressurized water reactor and several high-profile safety and regulatory incidents.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Davis–Besse Nuclear Power Station canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T9419056 — 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: Davis–Besse Nuclear Power Station Context triple: [Ottawa County, Ohio, contains, Davis–Besse Nuclear Power Station]
-
A.
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.
-
B.
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.
-
C.
Three Mile Island Nuclear Generating Station
Three Mile Island Nuclear Generating Station is a former nuclear power plant in Pennsylvania best known as the site of the 1979 partial reactor meltdown, the most serious accident in U.S. commercial nuclear power history.
-
D.
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.
-
E.
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.
- 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: Davis–Besse Nuclear Power Station Target entity description: Davis–Besse Nuclear Power Station is a commercial nuclear power plant in Ohio known for its pressurized water reactor and several high-profile safety and regulatory incidents.
-
A.
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.
-
B.
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.
-
C.
Three Mile Island Nuclear Generating Station
Three Mile Island Nuclear Generating Station is a former nuclear power plant in Pennsylvania best known as the site of the 1979 partial reactor meltdown, the most serious accident in U.S. commercial nuclear power history.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
commercial power station
ⓘ
nuclear power plant ⓘ |
| constructionStartDate | 1970s ⓘ |
| coolant | light water ⓘ |
| coolingSource | Lake Erie ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| design | two-loop pressurized water reactor design ⓘ |
| gridConnection |
PJM Interconnection region
ⓘ
linked to:
PJM Interconnection
|
| gridConnectionDate | 1977 ⓘ |
| gridOperator | PJM Interconnection ⓘ |
| hasContainmentType | steel-lined concrete containment ⓘ |
| hasCoolingTowers | mechanical draft cooling towers ⓘ |
| hasEmergencyPlanningZone |
10-mile plume exposure pathway emergency planning zone
ⓘ
50-mile ingestion pathway emergency planning zone ⓘ |
| hasLicense | operating license from U.S. Nuclear Regulatory Commission ⓘ |
| hasSafetyIssue |
containment air cooler degradation
ⓘ
control rod drive mechanism nozzle cracking ⓘ reactor vessel head corrosion ⓘ |
| hasSpentFuelStorage |
dry cask storage
ⓘ
spent fuel pool ⓘ |
| locatedIn |
Oak Harbor, Ohio
ⓘ
Ohio ⓘ Ottawa County, Ohio NERFINISHED ⓘ |
| locatedNear | Lake Erie ⓘ |
| moderator | light water ⓘ |
| nearCity | Toledo, Ohio ⓘ |
| netElectricalCapacity_MWe | approximately 900 ⓘ |
| notableIncident |
near-breach of reactor pressure vessel head in 2002
ⓘ
reactor coolant system leakage issues ⓘ severe reactor vessel head corrosion discovered in 2002 ⓘ |
| numberOfReactors | 1 ⓘ |
| operatedBy |
FirstEnergy Nuclear Operating Company
ⓘ
linked to:
FirstEnergy
|
| ownedBy |
FirstEnergy Nuclear Operating Company
ⓘ
linked to:
FirstEnergy
|
| primaryFuel | uranium dioxide ⓘ |
| purpose | electricity generation ⓘ |
| reactorGeneration | Generation II ⓘ |
| reactorStatus | operational as of early 2020s ⓘ |
| reactorSupplier | Babcock & Wilcox ⓘ |
| reactorType | pressurized water reactor ⓘ |
| regulatoryAction |
extended shutdown ordered by U.S. Nuclear Regulatory Commission in 2002
ⓘ
significant fines imposed by U.S. Nuclear Regulatory Commission ⓘ |
| regulatoryBody | U.S. Nuclear Regulatory Commission ⓘ |
| safetyCultureConcern |
criticized for inadequate maintenance practices
ⓘ
criticized for weak safety culture ⓘ |
| safetySystem |
auxiliary feedwater system
ⓘ
containment spray system ⓘ emergency core cooling system ⓘ |
| steamGeneratorType | U-tube steam generators ⓘ |
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: Davis–Besse Nuclear Power Station Description of subject: Davis–Besse Nuclear Power Station is a commercial nuclear power plant in Ohio known for its pressurized water reactor and several high-profile safety and regulatory incidents.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.