Gianelli Pumping–Generating Plant
E363207
The Gianelli Pumping–Generating Plant is a major hydroelectric and pumping facility in California that moves water for irrigation and storage while generating electricity as part of the state’s Central Valley Project.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Gianelli Pumping–Generating Plant canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3509462 — 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: Gianelli Pumping–Generating Plant Context triple: [San Luis Unit, hasPart, Gianelli Pumping–Generating Plant]
-
A.
Tracy Pumping Plant
Tracy Pumping Plant is a major water pumping facility in California that lifts and conveys water from the Sacramento–San Joaquin Delta into the Central Valley Project’s distribution system.
-
B.
Jones Pumping Plant
Jones Pumping Plant is a major water pumping facility in California’s Central Valley that lifts and conveys water from the Sacramento-San Joaquin Delta into the Central Valley Project’s distribution system.
-
C.
Lewiston Pump-Generating Plant
The Lewiston Pump-Generating Plant is a hydroelectric pumped-storage facility near Niagara Falls that works in tandem with the Robert Moses Niagara Power Plant to balance electricity supply and demand.
-
D.
South Bay Pumping Plant
South Bay Pumping Plant is a key water pumping facility in California’s State Water Project that lifts and conveys water through the South Bay Aqueduct to serve urban and industrial users in the San Francisco Bay Area.
-
E.
Humboldt Bay Power Plant
Humboldt Bay Power Plant is a decommissioned power-generating facility in Northern California that formerly included both nuclear and fossil-fuel units serving the surrounding region’s electricity needs.
- 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: Gianelli Pumping–Generating Plant Target entity description: The Gianelli Pumping–Generating Plant is a major hydroelectric and pumping facility in California that moves water for irrigation and storage while generating electricity as part of the state’s Central Valley Project.
-
A.
Tracy Pumping Plant
Tracy Pumping Plant is a major water pumping facility in California that lifts and conveys water from the Sacramento–San Joaquin Delta into the Central Valley Project’s distribution system.
-
B.
Jones Pumping Plant
Jones Pumping Plant is a major water pumping facility in California’s Central Valley that lifts and conveys water from the Sacramento-San Joaquin Delta into the Central Valley Project’s distribution system.
-
C.
Lewiston Pump-Generating Plant
The Lewiston Pump-Generating Plant is a hydroelectric pumped-storage facility near Niagara Falls that works in tandem with the Robert Moses Niagara Power Plant to balance electricity supply and demand.
-
D.
South Bay Pumping Plant
South Bay Pumping Plant is a key water pumping facility in California’s State Water Project that lifts and conveys water through the South Bay Aqueduct to serve urban and industrial users in the San Francisco Bay Area.
-
E.
Humboldt Bay Power Plant
Humboldt Bay Power Plant is a decommissioned power-generating facility in Northern California that formerly included both nuclear and fossil-fuel units serving the surrounding region’s electricity needs.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
hydroelectric power plant
ⓘ
pumped-storage power plant ⓘ water pumping station ⓘ |
| connectedTo |
O’Neill Dam
ⓘ
San Luis Dam ⓘ |
| constructionType | underground powerhouse ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| energySource | hydropower ⓘ |
| gridRole |
load balancing
ⓘ
peak load power supply ⓘ |
| hasForebay | O’Neill Forebay ⓘ |
| hasFunction |
generates electricity by releasing water from San Luis Reservoir to O’Neill Forebay
ⓘ
pumps water from O’Neill Forebay to San Luis Reservoir ⓘ |
| hasReservoir | San Luis Reservoir ⓘ |
| hasStorageRole | off-stream storage ⓘ |
| hasTurbineType | Francis turbine ⓘ |
| isComponentOf |
State Water Project
ⓘ
surface form:
California State Water Project
Central Valley Project ⓘ
surface form:
federal Central Valley Project
|
| locatedAt |
O’Neill Forebay
ⓘ
San Luis Reservoir ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Merced County, California NERFINISHED ⓘ |
| locatedNear | Los Banos, California ⓘ |
| managingAgency |
California Department of Water Resources
ⓘ
Bureau of Reclamation ⓘ
surface form:
United States Bureau of Reclamation
|
| namedAfter | William R. Gianelli ⓘ |
| operator |
California Department of Water Resources
ⓘ
Bureau of Reclamation ⓘ
surface form:
United States Bureau of Reclamation
|
| partOf |
Central Valley Project
ⓘ
San Luis Unit ⓘ |
| purpose |
electricity generation
ⓘ
irrigation water supply ⓘ pumped-storage regulation of power supply ⓘ water storage ⓘ |
| regionServed |
Central Valley
ⓘ
surface form:
Central Valley of California
|
| sector |
electric power
ⓘ
water resources ⓘ |
| supportsUse |
agricultural irrigation
ⓘ
flood control operations of San Luis Reservoir ⓘ municipal and industrial water supply ⓘ |
| usesWaterFrom |
California Aqueduct
ⓘ
Delta-Mendota Canal ⓘ
surface form:
Delta–Mendota Canal
|
| waterDestination |
O’Neill Forebay
ⓘ
San Luis Reservoir ⓘ |
| waterSource | Sacramento–San Joaquin Delta via California Aqueduct ⓘ |
| waterUse | Central Valley irrigation ⓘ |
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: Gianelli Pumping–Generating Plant Description of subject: The Gianelli Pumping–Generating Plant is a major hydroelectric and pumping facility in California that moves water for irrigation and storage while generating electricity as part of the state’s Central Valley Project.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.