Arenal hydroelectric project
E1045576
The Arenal hydroelectric project is a major Costa Rican dam and power plant complex that harnesses the waters of Lake Arenal to generate a significant portion of the country’s renewable electricity.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Arenal Hydroelectric Project | 1 |
| Arenal hydroelectric project canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13506586 — 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: Arenal hydroelectric project Context triple: [Arenal Tilaran Conservation Area, relatedTo, Arenal hydroelectric project]
-
A.
Hidroituango hydroelectric project
The Hidroituango hydroelectric project is a major dam and power plant development in Colombia, designed to be the country’s largest source of hydroelectric energy.
-
B.
Bayano Hydroelectric Plant
The Bayano Hydroelectric Plant is a major hydroelectric power facility in Panama that generates electricity using water from Bayano Lake.
-
C.
Bassi Hydroelectric Project
Bassi Hydroelectric Project is a hydroelectric power station in Himachal Pradesh, India, that generates electricity using the waters of the Uhl River.
-
D.
Tinguiririca hydroelectric facilities
The Tinguiririca hydroelectric facilities are a complex of power plants in central Chile that harness the flow of the Tinguiririca River to generate renewable electricity for the national grid.
-
E.
Tuirial Hydroelectric Project
Tuirial Hydroelectric Project is a hydroelectric power station in Mizoram, India, built on the Tuirial River to generate electricity for 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: Arenal hydroelectric project Target entity description: The Arenal hydroelectric project is a major Costa Rican dam and power plant complex that harnesses the waters of Lake Arenal to generate a significant portion of the country’s renewable electricity.
-
A.
Hidroituango hydroelectric project
The Hidroituango hydroelectric project is a major dam and power plant development in Colombia, designed to be the country’s largest source of hydroelectric energy.
-
B.
Bayano Hydroelectric Plant
The Bayano Hydroelectric Plant is a major hydroelectric power facility in Panama that generates electricity using water from Bayano Lake.
-
C.
Bassi Hydroelectric Project
Bassi Hydroelectric Project is a hydroelectric power station in Himachal Pradesh, India, that generates electricity using the waters of the Uhl River.
-
D.
Tinguiririca hydroelectric facilities
The Tinguiririca hydroelectric facilities are a complex of power plants in central Chile that harness the flow of the Tinguiririca River to generate renewable electricity for the national grid.
-
E.
Tuirial Hydroelectric Project
Tuirial Hydroelectric Project is a hydroelectric power station in Mizoram, India, built on the Tuirial River to generate electricity for the region.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
dam and power plant complex
ⓘ
hydroelectric power plant ⓘ |
| abbreviation | ICE ⓘ |
| associatedWith |
Costa Rica renewable energy strategy
ⓘ
Lake Arenal tourism and recreation ⓘ |
| basinCountry | Costa Rica ⓘ |
| benefit |
low-carbon electricity production
ⓘ
reduction of fossil fuel dependence in Costa Rica ⓘ |
| constructionType | large-scale infrastructure project ⓘ |
| continent |
Central America
ⓘ
North America ⓘ |
| country | Costa Rica ⓘ |
| countrySubdivision |
Alajuela Province
ⓘ
Guanacaste Province ⓘ |
| createsReservoir | Lake Arenal ⓘ |
| damFunction |
river flow regulation
ⓘ
water storage for power generation ⓘ |
| energyForm | electric power ⓘ |
| energyPolicyRole | supports high share of renewables in Costa Rica’s power mix ⓘ |
| energyType | renewable energy ⓘ |
| environmentalAspect |
creation of artificial lake basin
ⓘ
modification of Arenal River flow ⓘ |
| gridConnection | Costa Rican national electricity grid ⓘ |
| hasComponent |
Arenal Dam
ⓘ
hydroelectric power station ⓘ |
| hasInfrastructure |
powerhouse
ⓘ
spillway ⓘ transmission lines ⓘ |
| infrastructureClass | public utility infrastructure ⓘ |
| locatedIn |
Alajuela Province
ⓘ
Guanacaste Province ⓘ |
| locatedNear |
Arenal Volcano
ⓘ
linked to:
Arenal
La Fortuna ⓘ |
| mechanism | converts potential energy of stored water into electricity via turbines ⓘ |
| operator |
Instituto Costarricense de Electricidad
ⓘ
linked to:
Costa Rican Institute of Electricity
|
| primaryEnergySource | hydropower ⓘ |
| purpose | electricity generation ⓘ |
| regionServed | national grid of Costa Rica ⓘ |
| reservoirUse |
hydropower generation
ⓘ
water management ⓘ |
| sector | electric power industry ⓘ |
| significance |
key component of Costa Rica’s renewable energy system
ⓘ
major source of Costa Rica’s electricity ⓘ |
| supportsSector | Costa Rican electricity sector ⓘ |
| technology |
dam-based reservoir system
ⓘ
hydroelectric turbines ⓘ |
| usesWaterBody | Lake Arenal ⓘ |
| waterSource | Arenal River ⓘ |
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: Arenal hydroelectric project Description of subject: The Arenal hydroelectric project is a major Costa Rican dam and power plant complex that harnesses the waters of Lake Arenal to generate a significant portion of the country’s renewable electricity.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Arenal hydroelectric project