Koepchenwerk pumped-storage plant
E1032874
The Koepchenwerk pumped-storage plant is a historic hydroelectric facility in North Rhine-Westphalia, Germany, known as one of the country’s earliest large-scale pumped-storage power stations for balancing electricity supply and demand.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Koepchenwerk pumped-storage plant canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13312552 — 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: Koepchenwerk pumped-storage plant Context triple: [Hengsteysee, nearbyStructure, Koepchenwerk pumped-storage plant]
-
A.
Walsum power station
Walsum power station is a large coal-fired power plant in Duisburg, Germany, known for its prominent cooling tower and role in regional electricity and district heating supply.
-
B.
Persenbeug-Gottsdorf Danube power plant
The Persenbeug-Gottsdorf Danube power plant is a major run-of-river hydroelectric facility on the Danube River in Austria, providing renewable electricity and serving as an important component of the country’s power grid.
-
C.
Kembs hydroelectric power station
Kembs hydroelectric power station is a run-of-the-river hydroelectric facility on the Rhine in France, known as one of the oldest major plants harnessing the Grand Canal d’Alsace for power generation.
-
D.
Okertalsperre power station
Okertalsperre power station is a hydroelectric facility in Germany that generates electricity using water from the Okertalsperre reservoir in the Harz Mountains.
-
E.
Lippendorf power station
Lippendorf power station is a large lignite-fired power plant in Saxony, Germany, known for its significant electricity generation and associated environmental impact.
- 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: Koepchenwerk pumped-storage plant Target entity description: The Koepchenwerk pumped-storage plant is a historic hydroelectric facility in North Rhine-Westphalia, Germany, known as one of the country’s earliest large-scale pumped-storage power stations for balancing electricity supply and demand.
-
A.
Walsum power station
Walsum power station is a large coal-fired power plant in Duisburg, Germany, known for its prominent cooling tower and role in regional electricity and district heating supply.
-
B.
Persenbeug-Gottsdorf Danube power plant
The Persenbeug-Gottsdorf Danube power plant is a major run-of-river hydroelectric facility on the Danube River in Austria, providing renewable electricity and serving as an important component of the country’s power grid.
-
C.
Kembs hydroelectric power station
Kembs hydroelectric power station is a run-of-the-river hydroelectric facility on the Rhine in France, known as one of the oldest major plants harnessing the Grand Canal d’Alsace for power generation.
-
D.
Okertalsperre power station
Okertalsperre power station is a hydroelectric facility in Germany that generates electricity using water from the Okertalsperre reservoir in the Harz Mountains.
-
E.
Lippendorf power station
Lippendorf power station is a large lignite-fired power plant in Saxony, Germany, known for its significant electricity generation and associated environmental impact.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
hydroelectric power station
ⓘ
industrial heritage site ⓘ pumped-storage power station ⓘ |
| architecturalStyle | industrial architecture of the early 20th century ⓘ |
| category |
Buildings and structures in North Rhine-Westphalia
ⓘ
Hydroelectric power stations in Germany ⓘ Industrial heritage in Germany ⓘ Pumped-storage power stations in Germany ⓘ |
| commissioned | 1930 ⓘ |
| constructionStart | 1927 ⓘ |
| country | Germany NERFINISHED ⓘ |
| designedBy | Arthur Koepchen NERFINISHED ⓘ |
| gridConnection | German power grid ⓘ |
| hasGeneratingUnits | 4 ⓘ |
| hasLowerReservoir | Ruhr River NERFINISHED ⓘ |
| hasPart |
control building
ⓘ
machine hall ⓘ penstocks ⓘ switchyard ⓘ upper reservoir ⓘ |
| hasPurpose |
electricity storage
ⓘ
grid balancing ⓘ peak load power supply ⓘ |
| hasTurbineType | Francis turbine ⓘ |
| hasUpperReservoir | Koepchenwerk upper basin NERFINISHED ⓘ |
| hasVisitorAccess | yes ⓘ |
| heritageDesignation |
industrial monument
ⓘ
listed building ⓘ |
| heritageDesignationAppliesTo | old machine hall ⓘ |
| historicalSignificance |
one of the earliest large-scale pumped-storage plants in Germany
ⓘ
pioneering facility for balancing electricity supply and demand in Germany ⓘ |
| inception | 1930 ⓘ |
| locatedIn |
Herdecke
NERFINISHED
ⓘ
North Rhine-Westphalia ⓘ |
| locatedInAdministrativeTerritorialEntity | Ennepe-Ruhr-Kreis NERFINISHED ⓘ |
| locatedNear | Dortmund NERFINISHED ⓘ |
| locatedOn | Ruhr River NERFINISHED ⓘ |
| modernizedCapacity | 153 MW ⓘ |
| namedAfter | Arthur Koepchen NERFINISHED ⓘ |
| operator | RWE NERFINISHED ⓘ |
| originalCapacity | 132 MW ⓘ |
| ownedBy | RWE NERFINISHED ⓘ |
| status | partly decommissioned ⓘ |
| tourism | guided tours available ⓘ |
| usedFor |
load balancing for the RWE grid
ⓘ
supporting coal-fired power plants ⓘ |
| uses | pumped-storage hydroelectricity ⓘ |
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: Koepchenwerk pumped-storage plant Description of subject: The Koepchenwerk pumped-storage plant is a historic hydroelectric facility in North Rhine-Westphalia, Germany, known as one of the country’s earliest large-scale pumped-storage power stations for balancing electricity supply and demand.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.