Ralco Dam
E145183
Ralco Dam is a major hydroelectric power plant in Chile, known for its large reservoir and controversial impact on the local environment and indigenous communities.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ralco Dam canonical | 2 |
| Ralco Reservoir | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1241457 — 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: Ralco Dam Context triple: [Biobío River, hasHydroelectricDam, Ralco Dam]
-
A.
Kabini Dam
Kabini Dam is a major reservoir and irrigation dam built across the Kabini River in Karnataka, India, supporting water supply, agriculture, and regional wildlife habitats.
-
B.
Karcham Wangtoo Dam
Karcham Wangtoo Dam is a major hydroelectric gravity dam in Himachal Pradesh, India, known for its large underground power station harnessing the Sutlej River in the Himalayas.
-
C.
Nathpa Jhakri Dam
Nathpa Jhakri Dam is a major hydroelectric dam and power project in Himachal Pradesh, India, known as one of the country’s largest underground hydroelectric installations.
-
D.
Almatti Dam
Almatti Dam is a major hydroelectric and irrigation dam in Karnataka, India, built across the Krishna River as part of the Upper Krishna Project.
-
E.
Pandoh Dam
Pandoh Dam is an embankment dam in Himachal Pradesh, India, built for hydroelectric power generation and water diversion as part of the Beas Project.
- 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: Ralco Dam Target entity description: Ralco Dam is a major hydroelectric power plant in Chile, known for its large reservoir and controversial impact on the local environment and indigenous communities.
-
A.
Kabini Dam
Kabini Dam is a major reservoir and irrigation dam built across the Kabini River in Karnataka, India, supporting water supply, agriculture, and regional wildlife habitats.
-
B.
Karcham Wangtoo Dam
Karcham Wangtoo Dam is a major hydroelectric gravity dam in Himachal Pradesh, India, known for its large underground power station harnessing the Sutlej River in the Himalayas.
-
C.
Nathpa Jhakri Dam
Nathpa Jhakri Dam is a major hydroelectric dam and power project in Himachal Pradesh, India, known as one of the country’s largest underground hydroelectric installations.
-
D.
Almatti Dam
Almatti Dam is a major hydroelectric and irrigation dam in Karnataka, India, built across the Krishna River as part of the Upper Krishna Project.
-
E.
Pandoh Dam
Pandoh Dam is an embankment dam in Himachal Pradesh, India, built for hydroelectric power generation and water diversion as part of the Beas Project.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
hydroelectric dam
ⓘ
power station ⓘ |
| affectedGroup |
Mapuche people
ⓘ
surface form:
Mapuche communities
Mapuche people ⓘ
surface form:
Pehuenche people
|
| basinCountry | Chile ⓘ |
| constructionBegan | 1994 ⓘ |
| controversy |
environmental impact concerns
ⓘ
social conflict with indigenous communities ⓘ |
| country | Chile ⓘ |
| damType | concrete gravity dam ⓘ |
| elevation | about 700 m above sea level ⓘ |
| energySource | renewable energy ⓘ |
| gridConnection | Chilean national grid ⓘ |
| hasEnvironmentalAssessment | yes ⓘ |
| hasSpillway | yes ⓘ |
| impact |
alteration of river ecosystem
ⓘ
displacement of local communities ⓘ flooding of large areas of the upper Biobío valley ⓘ |
| installedCapacity | 690 MW ⓘ |
| locatedIn | Biobío Region ⓘ |
| locatedOnRiver | Biobío River ⓘ |
| nearbyCity | Los Ángeles, Chile ⓘ |
| notableFor |
controversial impact on indigenous communities
ⓘ
large reservoir ⓘ role in Chilean electricity supply ⓘ |
| numberOfTurbines | 2 ⓘ |
| openingYear | 2004 ⓘ |
| operator | Endesa Chile ⓘ |
| owner | Endesa Chile ⓘ |
| partOf | Biobío River hydroelectric development projects ⓘ |
| plantType | hydroelectric power plant ⓘ |
| purpose | power generation ⓘ |
| region |
Andes
ⓘ
surface form:
Andes Mountains
|
| regulatingAuthority | Chilean environmental agencies ⓘ |
| reservoirCapacity | 1220000000 m3 ⓘ |
| reservoirName |
Ralco Dam
self-linksurface differs
ⓘ
surface form:
Ralco Reservoir
|
| reservoirSurfaceArea | 36 km2 ⓘ |
| spillwayType | gated overflow ⓘ |
| status | operational ⓘ |
| subjectOf |
environmental protests
ⓘ
human rights debates regarding resettlement ⓘ legal disputes over indigenous land rights ⓘ |
| turbineType | Francis turbine ⓘ |
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: Ralco Dam Description of subject: Ralco Dam is a major hydroelectric power plant in Chile, known for its large reservoir and controversial impact on the local environment and indigenous communities.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ralco Reservoir