Whakamaru Power Station
E425492
Whakamaru Power Station is a major hydroelectric power facility in New Zealand that harnesses the flow of the Waikato River to generate electricity.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Whakamaru Power Station canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4125596 — 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: Whakamaru Power Station Context triple: [Waikato River, hasHydroelectricDam, Whakamaru Power Station]
-
A.
Karapiro Power Station
Karapiro Power Station is a hydroelectric power station in New Zealand that harnesses the flow of the Waikato River to generate electricity.
-
B.
Arapuni Power Station
Arapuni Power Station is a major hydroelectric power facility in New Zealand, located on the Waikato River and known for its large concrete arch dam and contribution to the national grid.
-
C.
Waipapa Power Station
Waipapa Power Station is a hydroelectric power station on New Zealand’s Waikato River that forms part of the country’s major North Island electricity generation network.
-
D.
Maraetai Power Station
Maraetai Power Station is a major hydroelectric power station on New Zealand’s Waikato River that forms part of the country’s largest river-based generation system.
-
E.
Manapouri Power Station
Manapouri Power Station is a large underground hydroelectric power station in Fiordland, New Zealand, renowned for harnessing the waters of Lake Manapouri to generate electricity, primarily for the Tiwai Point aluminium smelter.
- 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: Whakamaru Power Station Target entity description: Whakamaru Power Station is a major hydroelectric power facility in New Zealand that harnesses the flow of the Waikato River to generate electricity.
-
A.
Karapiro Power Station
Karapiro Power Station is a hydroelectric power station in New Zealand that harnesses the flow of the Waikato River to generate electricity.
-
B.
Arapuni Power Station
Arapuni Power Station is a major hydroelectric power facility in New Zealand, located on the Waikato River and known for its large concrete arch dam and contribution to the national grid.
-
C.
Waipapa Power Station
Waipapa Power Station is a hydroelectric power station on New Zealand’s Waikato River that forms part of the country’s major North Island electricity generation network.
-
D.
Maraetai Power Station
Maraetai Power Station is a major hydroelectric power station on New Zealand’s Waikato River that forms part of the country’s largest river-based generation system.
-
E.
Manapouri Power Station
Manapouri Power Station is a large underground hydroelectric power station in Fiordland, New Zealand, renowned for harnessing the waters of Lake Manapouri to generate electricity, primarily for the Tiwai Point aluminium smelter.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
hydroelectric power station
ⓘ
run-of-river power station ⓘ |
| annualGeneration | approximately 500 GWh ⓘ |
| basinCountry | New Zealand NERFINISHED ⓘ |
| commissioned | 1956 ⓘ |
| constructionBegan | 1950 ⓘ |
| country | New Zealand ⓘ |
| damCrosses | Waikato River NERFINISHED ⓘ |
| designedFor |
base-load generation
ⓘ
peaking support ⓘ |
| downstreamFrom | Atiamuri Power Station NERFINISHED ⓘ |
| gridConnection | New Zealand national grid NERFINISHED ⓘ |
| hasDam | Whakamaru Dam NERFINISHED ⓘ |
| hasInfrastructure |
control gates
ⓘ
penstocks ⓘ powerhouse ⓘ switchyard ⓘ |
| hasSpillway | gated spillway ⓘ |
| installedCapacity |
100 MW
ⓘ
approximately 100 megawatts ⓘ |
| isPartOf | New Zealand electricity system ⓘ |
| locatedIn |
North Island
ⓘ
Waikato River NERFINISHED ⓘ Waikato region NERFINISHED ⓘ |
| locatedInCountry | New Zealand NERFINISHED ⓘ |
| locatedNear |
Mangakino
NERFINISHED
ⓘ
Whakamaru NERFINISHED ⓘ |
| managedBy | Mercury NZ Limited NERFINISHED ⓘ |
| numberOfTurbines | 4 ⓘ |
| operator | Mercury NZ Limited NERFINISHED ⓘ |
| ownedBy |
Mercury NZ Limited
NERFINISHED
ⓘ
New Zealand Government (major shareholder in Mercury NZ) NERFINISHED ⓘ |
| partOf | Waikato River hydroelectric scheme NERFINISHED ⓘ |
| plantType | hydroelectric ⓘ |
| primaryFuel | hydropower ⓘ |
| purpose |
electricity generation
ⓘ
flood control support ⓘ river flow regulation ⓘ |
| region | Waikato NERFINISHED ⓘ |
| reservoirCreatedBy | Whakamaru Dam NERFINISHED ⓘ |
| reservoirName | Lake Whakamaru NERFINISHED ⓘ |
| river | Waikato River NERFINISHED ⓘ |
| status | operational ⓘ |
| turbineType | Francis turbine ⓘ |
| upstreamFrom | Maraetai Power Station NERFINISHED ⓘ |
| waterSource | Waikato River NERFINISHED ⓘ |
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: Whakamaru Power Station Description of subject: Whakamaru Power Station is a major hydroelectric power facility in New Zealand that harnesses the flow of the Waikato River to generate electricity.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.