Akosombo Dam
E370226
Akosombo Dam is a major hydroelectric dam in Ghana that created Lake Volta and supplies a significant portion of the country’s electricity.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Akosombo Dam canonical | 10 |
| Akosombo Dam project | 1 |
| Akosombo Hydroelectric Power Station | 1 |
| Volta River hydropower system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3367803 — 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: Akosombo Dam Context triple: [Volta River, feeds, Akosombo Dam]
-
A.
Roseires Dam
Roseires Dam is a major hydroelectric and irrigation dam on the Blue Nile in Sudan, crucial for water storage, power generation, and flood control in the region.
-
B.
Diama Dam
Diama Dam is a low-head dam on the lower Senegal River near the Senegal–Mauritania border, built primarily to prevent saltwater intrusion and support irrigation and navigation in the region.
-
C.
Kafue Gorge Dam
Kafue Gorge Dam is a major hydroelectric power facility on the Kafue River in Zambia, providing a significant portion of the country’s electricity supply.
-
D.
Wyangala Dam
Wyangala Dam is a major water storage and flood mitigation reservoir in New South Wales, Australia, serving irrigation, water supply, and recreational purposes.
-
E.
Jebba Dam
Jebba Dam is a major hydroelectric power facility in Nigeria that harnesses the flow of the Niger River to generate electricity and support regional water management.
- 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: Akosombo Dam Target entity description: Akosombo Dam is a major hydroelectric dam in Ghana that created Lake Volta and supplies a significant portion of the country’s electricity.
-
A.
Roseires Dam
Roseires Dam is a major hydroelectric and irrigation dam on the Blue Nile in Sudan, crucial for water storage, power generation, and flood control in the region.
-
B.
Diama Dam
Diama Dam is a low-head dam on the lower Senegal River near the Senegal–Mauritania border, built primarily to prevent saltwater intrusion and support irrigation and navigation in the region.
-
C.
Kafue Gorge Dam
Kafue Gorge Dam is a major hydroelectric power facility on the Kafue River in Zambia, providing a significant portion of the country’s electricity supply.
-
D.
Wyangala Dam
Wyangala Dam is a major water storage and flood mitigation reservoir in New South Wales, Australia, serving irrigation, water supply, and recreational purposes.
-
E.
Jebba Dam
Jebba Dam is a major hydroelectric power facility in Nigeria that harnesses the flow of the Niger River to generate electricity and support regional water management.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf | hydroelectric dam ⓘ |
| commissioningDate | 1965 ⓘ |
| constructionMaterial | rock-fill ⓘ |
| constructionStartDate | 1961 ⓘ |
| country | Ghana ⓘ |
| createdReservoir | Lake Volta ⓘ |
| damType | embankment dam ⓘ |
| designedBy |
Sir William Halcrow & Partners
ⓘ
linked to:
Halcrow Group
|
| fundedBy |
Ghana
ⓘ
Italy ⓘ United Kingdom ⓘ United States ⓘ
linked to:
United States of America
World Bank ⓘ |
| hasSpillway | yes ⓘ |
| height | 114 m ⓘ |
| impact |
displacement of local communities
ⓘ
environmental change around Volta River basin ⓘ |
| installedCapacity | 1020 MW ⓘ |
| length | 660 m ⓘ |
| locatedIn |
Eastern Region, Ghana
ⓘ
linked to:
Eastern Region of Ghana
|
| locatedOnRiver | Volta River ⓘ |
| nearbyCity |
Akosombo
ⓘ
Kpong ⓘ |
| notableEvent |
major spillway opening during 1968 floods
ⓘ
water level crises in 1980s and 1990s affecting power supply ⓘ |
| numberOfTurbines | 6 ⓘ |
| openingDate | 1965 ⓘ |
| operator | Volta River Authority ⓘ |
| ownedBy | Government of Ghana ⓘ |
| partOf |
Volta River hydropower system
ⓘ
linked to:
Volta River Project
|
| projectName | Volta River Project ⓘ |
| purpose |
flood control
ⓘ
industrial development support ⓘ navigation improvement ⓘ power generation ⓘ |
| regionServed | West Africa ⓘ |
| relatedStructure |
Bui Dam
ⓘ
Kpong Dam ⓘ |
| reservoirName | Lake Volta ⓘ |
| reservoirSurfaceArea | about 8500 km² ⓘ |
| reservoirType | artificial lake ⓘ |
| significance | created one of the world’s largest man-made lakes by surface area ⓘ |
| status | operational ⓘ |
| suppliesElectricityTo |
Benin
ⓘ
Ghana ⓘ Togo ⓘ aluminium smelter at Tema ⓘ |
| 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: Akosombo Dam Description of subject: Akosombo Dam is a major hydroelectric dam in Ghana that created Lake Volta and supplies a significant portion of the country’s electricity.
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Akosombo Dam
linked to: Akosombo Dam