Ontario nuclear generating fleet
E787593
The Ontario nuclear generating fleet is the collection of nuclear power stations in Ontario, Canada, that together provide a major share of the province’s low-carbon electricity.
All labels observed (2)
| Label | Occurrences |
|---|---|
| OPG Nuclear | 1 |
| Ontario nuclear generating fleet canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9242239 — 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: Ontario nuclear generating fleet Context triple: [Pickering Nuclear Generating Station, partOf, Ontario nuclear generating fleet]
-
A.
Bruce Power nuclear generating station
Bruce Power nuclear generating station is one of the world’s largest nuclear power facilities, located on the shores of Lake Huron in Ontario, Canada, and a major supplier of electricity to the province.
-
B.
Ontario electricity grid
The Ontario electricity grid is the province-wide interconnected network of power generation, transmission, and distribution infrastructure that delivers electricity to homes, businesses, and industries across Ontario, Canada.
-
C.
Chalk River Laboratories
Chalk River Laboratories is a major Canadian nuclear research facility in Ontario known for pioneering work in nuclear reactor technology and isotope production.
-
D.
La Tuque Generating Station
La Tuque Generating Station is a major hydroelectric power plant in Quebec, Canada, that harnesses the flow of the Saint-Maurice River to generate electricity.
-
E.
Shawinigan-2 Generating Station
Shawinigan-2 Generating Station is a historic hydroelectric power plant in Shawinigan, Quebec, that harnesses the Saint-Maurice River to generate electricity.
- 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: Ontario nuclear generating fleet Target entity description: The Ontario nuclear generating fleet is the collection of nuclear power stations in Ontario, Canada, that together provide a major share of the province’s low-carbon electricity.
-
A.
Bruce Power nuclear generating station
Bruce Power nuclear generating station is one of the world’s largest nuclear power facilities, located on the shores of Lake Huron in Ontario, Canada, and a major supplier of electricity to the province.
-
B.
Ontario electricity grid
The Ontario electricity grid is the province-wide interconnected network of power generation, transmission, and distribution infrastructure that delivers electricity to homes, businesses, and industries across Ontario, Canada.
-
C.
Chalk River Laboratories
Chalk River Laboratories is a major Canadian nuclear research facility in Ontario known for pioneering work in nuclear reactor technology and isotope production.
-
D.
La Tuque Generating Station
La Tuque Generating Station is a major hydroelectric power plant in Quebec, Canada, that harnesses the flow of the Saint-Maurice River to generate electricity.
-
E.
Shawinigan-2 Generating Station
Shawinigan-2 Generating Station is a historic hydroelectric power plant in Shawinigan, Quebec, that harnesses the Saint-Maurice River to generate electricity.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
electricity generation asset portfolio
ⓘ
nuclear power generation fleet ⓘ |
| connectsTo | Ontario transmission grid ⓘ |
| contributionTo |
Ontario baseload power
ⓘ
Ontario electricity supply ⓘ Ontario low-carbon electricity ⓘ |
| coolant | heavy water ⓘ |
| country | Canada ⓘ |
| emissionsProfile | low greenhouse gas emissions ⓘ |
| energyPolicyContext |
Canadian climate change mitigation policy
ⓘ
Ontario low-carbon energy strategy ⓘ |
| energyType |
baseload generation
ⓘ
dispatchable generation ⓘ |
| fuelType | natural uranium ⓘ |
| governedBy |
Canadian Environmental Assessment legislation
ⓘ
linked to:
Canadian Environmental Assessment Act
Nuclear Safety and Control Act ⓘ |
| gridInterconnection | interties with neighbouring provinces and U.S. states ⓘ |
| gridOperator | Independent Electricity System Operator ⓘ |
| hasOperator | Ontario Power Generation ⓘ |
| hasPart |
Bruce Nuclear Generating Station
ⓘ
Darlington Nuclear Generating Station ⓘ Pickering Nuclear Generating Station ⓘ |
| hasRegulator | Canadian Nuclear Safety Commission ⓘ |
| historicalRole | major contributor to Ontario coal phase-out ⓘ |
| jurisdiction |
Government of Canada
ⓘ
linked to:
Canadian federal government (Ottawa)
Province of Ontario ⓘ
linked to:
Ontario
|
| locatedIn |
Canada
ⓘ
Ontario ⓘ Province of Ontario ⓘ
linked to:
Ontario
|
| market | Ontario wholesale electricity market ⓘ |
| moderator | heavy water ⓘ |
| operatedBy | Ontario Power Generation ⓘ |
| ownedBy | Ontario Power Generation ⓘ |
| partOf |
Ontario electricity system
ⓘ
Ontario power system ⓘ |
| primaryEnergySource | nuclear fission ⓘ |
| purpose |
electricity generation
ⓘ
low-carbon electricity generation ⓘ |
| reactorType | pressurized heavy-water reactor ⓘ |
| regionServed |
Central Canada
ⓘ
linked to:
central Canada
Ontario ⓘ |
| regulator | Canadian Nuclear Safety Commission ⓘ |
| safetyRegime | Canadian nuclear safety regulations ⓘ |
| supports |
Ontario commercial electricity demand
ⓘ
Ontario industrial electricity demand ⓘ Ontario residential electricity demand ⓘ |
| technologyType |
CANDU reactor
ⓘ
linked to:
CANDU reactor technology
|
| usedFor |
decarbonization of electricity sector
ⓘ
reduction of air pollution from power generation ⓘ |
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: Ontario nuclear generating fleet Description of subject: The Ontario nuclear generating fleet is the collection of nuclear power stations in Ontario, Canada, that together provide a major share of the province’s low-carbon electricity.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Ontario nuclear generating fleet