Nam Ngum 2 Dam
E451342
Nam Ngum 2 Dam is a major hydroelectric power dam in Laos that generates electricity by harnessing the flow of the Nam Ngum River.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Nam Ngum 2 Dam canonical | 1 |
| Nam Ngum Reservoir | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4535139 — 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: Nam Ngum 2 Dam Context triple: [Nam Ngum River, hasHydropowerDam, Nam Ngum 2 Dam]
-
A.
Nam Ngum 1 Dam
Nam Ngum 1 Dam is a major hydroelectric dam in Laos that forms the Nam Ngum Reservoir and plays a key role in the country’s power generation and regional electricity exports.
-
B.
Nam Ou 1 Dam
Nam Ou 1 Dam is a hydropower facility on Laos’s Nam Ou River that forms part of a larger cascade of dams developed for electricity generation.
-
C.
Nam Ngum River
The Nam Ngum River is a significant river in Laos known for its large hydropower dam and reservoir, which play a key role in the country’s electricity production and irrigation.
-
D.
Thein Dam
Thein Dam, also known as Ranjit Sagar Dam, is a major multipurpose hydroelectric and irrigation dam located on the Ravi River in northern India.
-
E.
Kpong Dam
Kpong Dam is a hydroelectric power facility on Ghana’s Volta River that generates electricity and supports irrigation and water supply in the region.
- 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: Nam Ngum 2 Dam Target entity description: Nam Ngum 2 Dam is a major hydroelectric power dam in Laos that generates electricity by harnessing the flow of the Nam Ngum River.
-
A.
Nam Ngum 1 Dam
Nam Ngum 1 Dam is a major hydroelectric dam in Laos that forms the Nam Ngum Reservoir and plays a key role in the country’s power generation and regional electricity exports.
-
B.
Nam Ou 1 Dam
Nam Ou 1 Dam is a hydropower facility on Laos’s Nam Ou River that forms part of a larger cascade of dams developed for electricity generation.
-
C.
Nam Ngum River
The Nam Ngum River is a significant river in Laos known for its large hydropower dam and reservoir, which play a key role in the country’s electricity production and irrigation.
-
D.
Thein Dam
Thein Dam, also known as Ranjit Sagar Dam, is a major multipurpose hydroelectric and irrigation dam located on the Ravi River in northern India.
-
E.
Kpong Dam
Kpong Dam is a hydroelectric power facility on Ghana’s Volta River that generates electricity and supports irrigation and water supply in the region.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
gravity dam
ⓘ
hydroelectric dam ⓘ |
| basinCountry | Laos NERFINISHED ⓘ |
| commissioningDate | 2012 ⓘ |
| constructionCompany |
CH. Karnchang
NERFINISHED
ⓘ
Italian-Thai Development NERFINISHED ⓘ |
| constructionStartDate | 2006 ⓘ |
| country | Laos NERFINISHED ⓘ |
| countryOfficialName | Lao People’s Democratic Republic NERFINISHED ⓘ |
| designedFor | base-load power supply ⓘ |
| downstreamFrom | Nam Ngum 3 Dam site NERFINISHED ⓘ |
| energySource | renewable energy ⓘ |
| environmentalImpact |
displacement of local communities
ⓘ
inundation of upstream valleys ⓘ |
| fundingSource |
Laotian government
NERFINISHED
ⓘ
Thai private investors ⓘ |
| gridConnection | Electricity Generating Authority of Thailand grid NERFINISHED ⓘ |
| hasLanguageOfLocation | Lao ⓘ |
| height | 181 m ⓘ |
| installedCapacity | 615 MW ⓘ |
| length | 530 m ⓘ |
| locatedIn | Xaisomboun Province NERFINISHED ⓘ |
| locatedInRegion | central Laos ⓘ |
| locatedNear | Vientiane Province border ⓘ |
| locatedOnContinent | Asia ⓘ |
| locatedOnRiver | Nam Ngum River NERFINISHED ⓘ |
| numberOfTurbines | 3 ⓘ |
| openingDate | 2012 ⓘ |
| operator | Nam Ngum 2 Power Company NERFINISHED ⓘ |
| owner | Nam Ngum 2 Power Company NERFINISHED ⓘ |
| partOf |
Laos hydropower development program
NERFINISHED
ⓘ
Nam Ngum River hydropower cascade NERFINISHED ⓘ |
| plantType | conventional hydroelectric power plant ⓘ |
| primaryElectricityExportDestination | Thailand NERFINISHED ⓘ |
| purpose |
hydroelectricity
ⓘ
power generation ⓘ |
| reservoirCapacity | 6.7 billion m³ ⓘ |
| reservoirName | Nam Ngum 2 Reservoir NERFINISHED ⓘ |
| reservoirSurfaceArea | 120 km² ⓘ |
| spillwayType | gated spillway ⓘ |
| status | operational ⓘ |
| turbineType | Francis turbine ⓘ |
| upstreamFrom | Nam Ngum 1 Dam NERFINISHED ⓘ |
| watercourse | Nam Ngum 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: Nam Ngum 2 Dam Description of subject: Nam Ngum 2 Dam is a major hydroelectric power dam in Laos that generates electricity by harnessing the flow of the Nam Ngum River.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Nam Ngum Reservoir