Pepco Benning Road power plant site
E563484
The Pepco Benning Road power plant site is a former electric generating facility along the Anacostia River in Washington, D.C., now undergoing environmental remediation and redevelopment.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pepco Benning Road power plant site canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6027003 — 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: Pepco Benning Road power plant site Context triple: [River Terrace, hasNearbyFacility, Pepco Benning Road power plant site]
-
A.
Capitol Power Plant
The Capitol Power Plant is a historic facility in Washington, D.C. that provides heating and cooling to the U.S. Capitol complex.
-
B.
Calvert Cliffs Nuclear Power Plant
Calvert Cliffs Nuclear Power Plant is a two-unit pressurized water nuclear power station on the western shore of the Chesapeake Bay that generates electricity for the Mid-Atlantic region.
-
C.
Lots Road Power Station
Lots Road Power Station is a former coal-fired power station in Chelsea, London, that once supplied electricity to the London Underground and has since been redeveloped for mixed residential and commercial use.
-
D.
Gianelli Pumping–Generating Plant
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.
-
E.
Kemper Project power plant
The Kemper Project power plant is a controversial, partially abandoned integrated gasification combined cycle (IGCC) power facility in Mississippi that became known for massive cost overruns and the failure of its “clean coal” technology ambitions.
- 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: Pepco Benning Road power plant site Target entity description: The Pepco Benning Road power plant site is a former electric generating facility along the Anacostia River in Washington, D.C., now undergoing environmental remediation and redevelopment.
-
A.
Capitol Power Plant
The Capitol Power Plant is a historic facility in Washington, D.C. that provides heating and cooling to the U.S. Capitol complex.
-
B.
Calvert Cliffs Nuclear Power Plant
Calvert Cliffs Nuclear Power Plant is a two-unit pressurized water nuclear power station on the western shore of the Chesapeake Bay that generates electricity for the Mid-Atlantic region.
-
C.
Lots Road Power Station
Lots Road Power Station is a former coal-fired power station in Chelsea, London, that once supplied electricity to the London Underground and has since been redeveloped for mixed residential and commercial use.
-
D.
Gianelli Pumping–Generating Plant
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.
-
E.
Kemper Project power plant
The Kemper Project power plant is a controversial, partially abandoned integrated gasification combined cycle (IGCC) power facility in Mississippi that became known for massive cost overruns and the failure of its “clean coal” technology ambitions.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
former power plant site
ⓘ
industrial brownfield site ⓘ redevelopment site ⓘ |
| adjacentTo |
Anacostia River waterfront
NERFINISHED
ⓘ
Benning Road NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| currentUse |
environmental remediation
ⓘ
site redevelopment planning ⓘ |
| environmentalGoal | cleanup to standards protective of human health and the environment ⓘ |
| environmentalMediaAddressed |
groundwater
ⓘ
river sediments ⓘ soil ⓘ |
| environmentalRemediationStatus | ongoing ⓘ |
| formerFunction | fossil-fuel-fired electric generating station ⓘ |
| formerOperator | Potomac Electric Power Company NERFINISHED ⓘ |
| formerOwner | Potomac Electric Power Company NERFINISHED ⓘ |
| hasEnvironmentalIssue |
groundwater contamination
ⓘ
riverfront sediment contamination ⓘ soil contamination ⓘ |
| hasPlannedUse | mixed-use or community-serving redevelopment (proposed/anticipated) ⓘ |
| hasStakeholder |
District of Columbia government
NERFINISHED
ⓘ
Pepco / Pepco Holdings NERFINISHED ⓘ local community organizations ⓘ |
| hasTypeOfContamination |
industrial chemicals (likely)
ⓘ
petroleum-related contaminants (likely) ⓘ |
| historicalSector | electric utility industry ⓘ |
| impactOn |
Anacostia River water quality (historical)
ⓘ
local air quality (historical) ⓘ |
| locatedIn | Washington, D.C. ⓘ |
| locatedInAdministrativeTerritory | District of Columbia NERFINISHED ⓘ |
| locatedInNeighborhood | Benning neighborhood NERFINISHED ⓘ |
| locatedInWatershed | Anacostia River watershed NERFINISHED ⓘ |
| locatedOnWaterbody | Anacostia River NERFINISHED ⓘ |
| near |
Anacostia River trails and parkland
ⓘ
residential neighborhoods in Northeast Washington, D.C. ⓘ |
| ownedBy | Pepco Holdings (historically) NERFINISHED ⓘ |
| partOf | Anacostia River industrial corridor NERFINISHED ⓘ |
| redevelopmentGoal |
improved public access to the Anacostia River (anticipated)
ⓘ
reuse of former industrial land for community benefit (anticipated) ⓘ |
| redevelopmentStatus | in planning and early implementation stages ⓘ |
| regulatedBy |
District Department of Energy and Environment (DOEE)
NERFINISHED
ⓘ
U.S. Environmental Protection Agency (EPA) NERFINISHED ⓘ |
| subjectOf |
community redevelopment planning
ⓘ
environmental remediation program ⓘ regulatory oversight by District of Columbia environmental authorities ⓘ |
| use | electric power generation (historical) ⓘ |
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: Pepco Benning Road power plant site Description of subject: The Pepco Benning Road power plant site is a former electric generating facility along the Anacostia River in Washington, D.C., now undergoing environmental remediation and redevelopment.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.