Santo Antônio Dam
E486561
Santo Antônio Dam is a large hydroelectric power plant in Brazil, built on the Madeira River near Porto Velho to generate electricity as part of the Madeira River energy complex.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Santo Antônio Dam canonical | 2 |
| Santo Antônio Hydroelectric Power Plant | 1 |
| Usina Hidrelétrica Jirau | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4990668 — 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: Santo Antônio Dam Context triple: [Madeira River, hasDam, Santo Antônio Dam]
-
A.
Foz do Chapecó Dam
Foz do Chapecó Dam is a hydroelectric power plant and dam complex located on the Uruguay River in southern Brazil, known for its significant contribution to regional electricity generation.
-
B.
Salto Grande Dam
Salto Grande Dam is a large hydroelectric dam and binational power station on the Uruguay River, jointly operated by Argentina and Uruguay.
-
C.
Angostura Dam
Angostura Dam is a hydroelectric power facility located on Chile’s Biobío River, contributing to the country’s renewable energy generation.
-
D.
Yacyretá Dam
The Yacyretá Dam is a large hydroelectric power plant on the border between Argentina and Paraguay that generates electricity by harnessing the flow of the Paraná River.
-
E.
Itaipu Dam
Itaipu Dam is a massive hydroelectric power plant on the Brazil–Paraguay border, once the world’s largest in installed capacity and still one of the most important sources of renewable energy in South America.
- 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: Santo Antônio Dam Target entity description: Santo Antônio Dam is a large hydroelectric power plant in Brazil, built on the Madeira River near Porto Velho to generate electricity as part of the Madeira River energy complex.
-
A.
Foz do Chapecó Dam
Foz do Chapecó Dam is a hydroelectric power plant and dam complex located on the Uruguay River in southern Brazil, known for its significant contribution to regional electricity generation.
-
B.
Salto Grande Dam
Salto Grande Dam is a large hydroelectric dam and binational power station on the Uruguay River, jointly operated by Argentina and Uruguay.
-
C.
Angostura Dam
Angostura Dam is a hydroelectric power facility located on Chile’s Biobío River, contributing to the country’s renewable energy generation.
-
D.
Yacyretá Dam
The Yacyretá Dam is a large hydroelectric power plant on the border between Argentina and Paraguay that generates electricity by harnessing the flow of the Paraná River.
-
E.
Itaipu Dam
Itaipu Dam is a massive hydroelectric power plant on the Brazil–Paraguay border, once the world’s largest in installed capacity and still one of the most important sources of renewable energy in South America.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
hydroelectric power plant
ⓘ
run-of-the-river dam ⓘ |
| affects |
Madeira River navigation
ⓘ
fish migration in Madeira River ⓘ |
| basinCountry | Brazil ⓘ |
| belongsToSector | electric power industry of Brazil ⓘ |
| constructionCostCurrency | Brazilian real ⓘ |
| constructionMethod | concrete gravity dam sections with powerhouse ⓘ |
| constructionStartDate | 2008 ⓘ |
| continent | South America ⓘ |
| country | Brazil ⓘ |
| distanceToCity | approximately 7 km from Porto Velho city center ⓘ |
| electricalCapacity | 3568 MW ⓘ |
| gridConnection | Brazilian national interconnected system ⓘ |
| hasEnergySource | hydropower ⓘ |
| hasEnvironmentalImpact |
changes in sediment transport
ⓘ
flooding of riverine areas ⓘ impacts on aquatic biodiversity ⓘ |
| hasPart |
Santo Antônio Hydroelectric Power Plant
ⓘ
linked to:
Santo Antônio Dam
|
| hasPowerhouse | yes ⓘ |
| hasPurpose | electricity generation ⓘ |
| hasSpillway | yes ⓘ |
| inaugurationDate | 2012 ⓘ |
| isPartOfProgram | Brazilian federal energy expansion plans ⓘ |
| locatedIn |
Brazil
ⓘ
Porto Velho ⓘ |
| locatedInAdministrativeTerritorialEntity | Rondônia ⓘ |
| locatedInHydrologicalBasin |
Madeira River basin
ⓘ
linked to:
Madeira River
|
| locatedNear | Porto Velho ⓘ |
| locatedOnRiver | Madeira River ⓘ |
| locatedUpstreamFrom | Jirau Dam ⓘ |
| nearCity | Porto Velho ⓘ |
| numberOfTurbines | 50 ⓘ |
| openingDate | 2012 ⓘ |
| operator | Santo Antônio Energia ⓘ |
| owner | Santo Antônio Energia ⓘ |
| partOf |
Madeira River energy complex
ⓘ
Madeira River hydroelectric complex ⓘ
linked to:
Madeira River energy complex
|
| plantType | run-of-the-river hydroelectric plant ⓘ |
| projectDeveloper |
Santo Antônio Energia consortium
ⓘ
linked to:
Santo Antônio Energia
|
| region |
Northern Brazil
ⓘ
linked to:
North Region of Brazil
|
| regulates | Madeira River flow locally ⓘ |
| riverSystem |
Amazon River basin
ⓘ
linked to:
Amazon Basin
|
| status | operational ⓘ |
| turbineType | bulb turbine ⓘ |
| usesTechnology | low-head bulb turbines ⓘ |
| watercourse | Madeira 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: Santo Antônio Dam Description of subject: Santo Antônio Dam is a large hydroelectric power plant in Brazil, built on the Madeira River near Porto Velho to generate electricity as part of the Madeira River energy complex.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Santo Antônio Dam
linked to: Santo Antônio Dam