Ontario hydroelectric system
E888328
The Ontario hydroelectric system is a network of dams, generating stations, and related infrastructure that harnesses the province’s rivers and waterways to produce renewable electricity.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ontario hydroelectric system canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10833565 — 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 hydroelectric system Context triple: [Alexander Dam, isPartOf, Ontario hydroelectric system]
-
A.
Ottawa River hydropower system
The Ottawa River hydropower system is an interconnected network of dams and generating stations along the Ottawa River that produces hydroelectric power for surrounding regions in Canada.
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B.
Niagara River hydropower system
The Niagara River hydropower system is a large binational network of dams, tunnels, and generating stations on the Niagara River that harnesses the river’s flow and Niagara Falls to produce significant hydroelectric power for Canada and the United States.
-
C.
Sir Adam Beck Hydroelectric Generating Stations
The Sir Adam Beck Hydroelectric Generating Stations are a major complex of hydroelectric power plants on the Niagara River in Ontario, Canada, that harness the flow of Niagara Falls to generate electricity for the province.
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D.
Hydro-Québec James Bay Project
The Hydro-Québec James Bay Project is a massive hydroelectric development in northern Quebec comprising a complex of dams, reservoirs, and power stations that harness the region’s large rivers to generate electricity.
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E.
Muskrat Falls Generating Station
Muskrat Falls Generating Station is a large hydroelectric power facility on the lower Churchill River in Labrador, Canada, developed to supply renewable electricity to Newfoundland and Labrador and beyond.
- 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 hydroelectric system Target entity description: The Ontario hydroelectric system is a network of dams, generating stations, and related infrastructure that harnesses the province’s rivers and waterways to produce renewable electricity.
-
A.
Ottawa River hydropower system
The Ottawa River hydropower system is an interconnected network of dams and generating stations along the Ottawa River that produces hydroelectric power for surrounding regions in Canada.
-
B.
Niagara River hydropower system
The Niagara River hydropower system is a large binational network of dams, tunnels, and generating stations on the Niagara River that harnesses the river’s flow and Niagara Falls to produce significant hydroelectric power for Canada and the United States.
-
C.
Sir Adam Beck Hydroelectric Generating Stations
The Sir Adam Beck Hydroelectric Generating Stations are a major complex of hydroelectric power plants on the Niagara River in Ontario, Canada, that harness the flow of Niagara Falls to generate electricity for the province.
-
D.
Hydro-Québec James Bay Project
The Hydro-Québec James Bay Project is a massive hydroelectric development in northern Quebec comprising a complex of dams, reservoirs, and power stations that harness the region’s large rivers to generate electricity.
-
E.
Muskrat Falls Generating Station
Muskrat Falls Generating Station is a large hydroelectric power facility on the lower Churchill River in Labrador, Canada, developed to supply renewable electricity to Newfoundland and Labrador and beyond.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
electricity generation infrastructure
ⓘ
hydroelectric power system ⓘ |
| connectsTo |
North American power grid
NERFINISHED
ⓘ
Ontario electricity grid NERFINISHED ⓘ |
| country | Canada ⓘ |
| environmentalAttribute |
low greenhouse gas emissions during operation
ⓘ
renewable electricity production ⓘ |
| gridRole |
baseload generation
ⓘ
load-following generation ⓘ peaking generation ⓘ |
| hasComponent |
dam
ⓘ
generator ⓘ hydroelectric generating station ⓘ penstock ⓘ spillway ⓘ switchyard ⓘ transmission substation ⓘ turbine ⓘ water intake structure ⓘ |
| hasMajorFacility |
Des Joachims Generating Station
NERFINISHED
ⓘ
Lower Mattagami River Complex NERFINISHED ⓘ Niagara River hydropower facilities ⓘ R.H. Saunders Generating Station NERFINISHED ⓘ Sir Adam Beck Hydroelectric Generating Stations NERFINISHED ⓘ |
| locatedIn | Ontario ⓘ |
| locatedOnWaterBody |
Abitibi River
NERFINISHED
ⓘ
English River NERFINISHED ⓘ Mattagami River NERFINISHED ⓘ Moose River NERFINISHED ⓘ Niagara River NERFINISHED ⓘ Ottawa River NERFINISHED ⓘ St. Lawrence River NERFINISHED ⓘ Winnipeg River NERFINISHED ⓘ |
| operatedBy |
Hydro One Networks
NERFINISHED
ⓘ
Ontario Power Generation NERFINISHED ⓘ |
| ownedBy | Province of Ontario NERFINISHED ⓘ |
| partOf | Ontario electricity sector NERFINISHED ⓘ |
| providesService |
electricity supply
ⓘ
frequency regulation ⓘ grid stability ⓘ voltage support ⓘ |
| purpose |
electric power generation
ⓘ
harnessing river and waterway energy ⓘ |
| regulatedBy |
Independent Electricity System Operator
NERFINISHED
ⓘ
Ontario Energy Board NERFINISHED ⓘ |
| subjectTo |
Canadian federal environmental regulation
ⓘ
Ontario provincial environmental regulation ⓘ |
| usesEnergySource |
hydropower
ⓘ
renewable energy ⓘ |
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 hydroelectric system Description of subject: The Ontario hydroelectric system is a network of dams, generating stations, and related infrastructure that harnesses the province’s rivers and waterways to produce renewable electricity.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.