Benmore Dam
E578631
Benmore Dam is a large hydroelectric earth-fill dam in New Zealand’s South Island, forming Lake Benmore and serving as a major power generation facility in the Waitaki hydro scheme.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Benmore Dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6201928 — 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: Benmore Dam Context triple: [Waitaki River, hasDam, Benmore Dam]
-
A.
Revelstoke Dam
Revelstoke Dam is a major hydroelectric dam on the Columbia River in British Columbia, Canada, known for its significant power generation capacity and role in regional energy supply.
-
B.
Tulloch Dam
Tulloch Dam is a concrete gravity dam on the Stanislaus River in California that forms Tulloch Reservoir for irrigation, hydroelectric power generation, and recreation.
-
C.
W. A. C. Bennett Dam
The W. A. C. Bennett Dam is a major hydroelectric dam in northern British Columbia, Canada, forming Williston Lake and serving as one of BC Hydro’s largest power-generating facilities.
-
D.
Cluny Dam
Cluny Dam is a hydroelectric dam on Tasmania’s Derwent River that forms part of the state’s power generation and water management system.
-
E.
Keenleyside Dam
Keenleyside Dam is a major hydroelectric and flood-control dam on the Columbia River in British Columbia, Canada, forming part of the region’s large transboundary water management system.
- 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: Benmore Dam Target entity description: Benmore Dam is a large hydroelectric earth-fill dam in New Zealand’s South Island, forming Lake Benmore and serving as a major power generation facility in the Waitaki hydro scheme.
-
A.
Revelstoke Dam
Revelstoke Dam is a major hydroelectric dam on the Columbia River in British Columbia, Canada, known for its significant power generation capacity and role in regional energy supply.
-
B.
Tulloch Dam
Tulloch Dam is a concrete gravity dam on the Stanislaus River in California that forms Tulloch Reservoir for irrigation, hydroelectric power generation, and recreation.
-
C.
W. A. C. Bennett Dam
The W. A. C. Bennett Dam is a major hydroelectric dam in northern British Columbia, Canada, forming Williston Lake and serving as one of BC Hydro’s largest power-generating facilities.
-
D.
Cluny Dam
Cluny Dam is a hydroelectric dam on Tasmania’s Derwent River that forms part of the state’s power generation and water management system.
-
E.
Keenleyside Dam
Keenleyside Dam is a major hydroelectric and flood-control dam on the Columbia River in British Columbia, Canada, forming part of the region’s large transboundary water management system.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
earth-fill dam
ⓘ
gravity dam ⓘ hydroelectric dam ⓘ |
| annualGeneration | approximately 2,200 GWh ⓘ |
| commissioned | 1965 ⓘ |
| connectsTo | HVDC Inter-Island link NERFINISHED ⓘ |
| constructionBegan | 1958 ⓘ |
| constructionMaterial | compacted earth ⓘ |
| country | New Zealand ⓘ |
| crestElevation | 381 m above sea level ⓘ |
| damType |
concrete gravity
ⓘ
earth-fill ⓘ |
| downstreamFrom | Lake Ohau NERFINISHED ⓘ |
| formsReservoir | Lake Benmore NERFINISHED ⓘ |
| gridConnectionVoltage |
220 kV
ⓘ
350 kV HVDC ⓘ |
| hasRecreation |
boating on Lake Benmore
ⓘ
fishing on Lake Benmore ⓘ |
| height | 110 m ⓘ |
| installedCapacity | 540 MW ⓘ |
| length | 823 m ⓘ |
| locatedIn | South Island ⓘ |
| locatedInBasin | Waitaki River catchment NERFINISHED ⓘ |
| locatedOnRiver | Waitaki River NERFINISHED ⓘ |
| nearPlace |
Otematata
NERFINISHED
ⓘ
Twizel NERFINISHED ⓘ |
| notableFor | being one of New Zealand’s largest earth dams ⓘ |
| openingDate | 1965 ⓘ |
| operator | Meridian Energy NERFINISHED ⓘ |
| ownedBy | Meridian Energy NERFINISHED ⓘ |
| partOf | Waitaki hydro scheme NERFINISHED ⓘ |
| plantName | Benmore Power Station NERFINISHED ⓘ |
| plantType | conventional hydroelectric ⓘ |
| purpose |
electricity generation
ⓘ
river flow regulation ⓘ |
| region | Canterbury NERFINISHED ⓘ |
| reservoirName | Lake Benmore NERFINISHED ⓘ |
| reservoirSurfaceArea | 75 km² ⓘ |
| reservoirTotalCapacity | 1.25 km³ ⓘ |
| role | major node in New Zealand national grid ⓘ |
| safetyMonitoring | instrumented for seismic and structural monitoring ⓘ |
| spillwayCount | 6 ⓘ |
| spillwayType | gated overflow ⓘ |
| turbineCount | 6 ⓘ |
| turbineType | Francis turbine ⓘ |
| upstreamFrom |
Aviemore Dam
NERFINISHED
ⓘ
Waitaki Dam 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: Benmore Dam Description of subject: Benmore Dam is a large hydroelectric earth-fill dam in New Zealand’s South Island, forming Lake Benmore and serving as a major power generation facility in the Waitaki hydro scheme.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.