Pepco Holdings
E646844
Pepco Holdings is a regional energy utility company in the Mid-Atlantic United States that distributes electricity and related services to residential, commercial, and governmental customers.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Pepco Holdings canonical | 1 |
| Potomac Electric Power Company | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7169871 — 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 Holdings Context triple: [Exelon, hasSubsidiary, Pepco Holdings]
-
A.
Constellation Energy
Constellation Energy is a U.S.-based energy company that generates and supplies electricity, with a significant focus on nuclear power and other low-carbon energy sources.
-
B.
PSE&G
PSE&G (Public Service Electric and Gas Company) is a major regulated utility in New Jersey that provides electric and natural gas service to millions of customers.
-
C.
Cinergy Corporation
Cinergy Corporation was a U.S.-based energy company best known in part for its naming rights sponsorship of Cincinnati’s Cinergy Field baseball stadium.
-
D.
Exelon
Exelon is a major American energy company and utility services holding corporation, known for operating one of the largest fleets of nuclear power plants in the United States.
-
E.
Exelon
Exelon is a brand-name prescription medication containing rivastigmine, used to treat symptoms of mild to moderate dementia associated with Alzheimer's and Parkinson's disease.
- 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 Holdings Target entity description: Pepco Holdings is a regional energy utility company in the Mid-Atlantic United States that distributes electricity and related services to residential, commercial, and governmental customers.
-
A.
Constellation Energy
Constellation Energy is a U.S.-based energy company that generates and supplies electricity, with a significant focus on nuclear power and other low-carbon energy sources.
-
B.
PSE&G
PSE&G (Public Service Electric and Gas Company) is a major regulated utility in New Jersey that provides electric and natural gas service to millions of customers.
-
C.
Cinergy Corporation
Cinergy Corporation was a U.S.-based energy company best known in part for its naming rights sponsorship of Cincinnati’s Cinergy Field baseball stadium.
-
D.
Exelon
Exelon is a major American energy company and utility services holding corporation, known for operating one of the largest fleets of nuclear power plants in the United States.
-
E.
Exelon
Exelon is a brand-name prescription medication containing rivastigmine, used to treat symptoms of mild to moderate dementia associated with Alzheimer's and Parkinson's disease.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
electric utility company
ⓘ
energy company ⓘ |
| acquiredBy | Exelon Corporation NERFINISHED ⓘ |
| acquisitionAnnounced | 2014 ⓘ |
| acquisitionCompleted | 2016 ⓘ |
| areaServed |
Delaware
NERFINISHED
ⓘ
District of Columbia NERFINISHED ⓘ Maryland NERFINISHED ⓘ New Jersey NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| customerType |
commercial customers
ⓘ
governmental customers ⓘ residential customers ⓘ |
| focus | regulated utility operations ⓘ |
| formerName | Potomac Electric Power Company (as predecessor utility) NERFINISHED ⓘ |
| formerStatus | publicly traded company ⓘ |
| gridConnection | Eastern Interconnection NERFINISHED ⓘ |
| gridRole | distribution utility ⓘ |
| hasBusinessModel | regulated monopoly distribution ⓘ |
| hasSubsidiary | Pepco Energy Services (historical) NERFINISHED ⓘ |
| headquartersLocation | Washington, D.C. ⓘ |
| industry | electric power industry ⓘ |
| owns |
Atlantic City Electric
NERFINISHED
ⓘ
Delmarva Power NERFINISHED ⓘ Potomac Electric Power Company NERFINISHED ⓘ |
| parentCompany | Exelon Corporation NERFINISHED ⓘ |
| provides |
customer energy services
ⓘ
power delivery services ⓘ |
| regionServed |
Mid-Atlantic states
ⓘ
surface form:
Mid-Atlantic United States
|
| regulation |
Federal Energy Regulatory Commission
NERFINISHED
ⓘ
state public utility commissions ⓘ |
| regulatoryApproval |
Delaware Public Service Commission
NERFINISHED
ⓘ
Maryland Public Service Commission NERFINISHED ⓘ New Jersey Board of Public Utilities NERFINISHED ⓘ Public Service Commission of the District of Columbia NERFINISHED ⓘ |
| revenueSource | electric distribution tariffs ⓘ |
| sector | utilities sector ⓘ |
| servesMetropolitanArea |
Baltimore–Washington corridor
NERFINISHED
ⓘ
Washington metropolitan area NERFINISHED ⓘ |
| serviceType |
electricity distribution
ⓘ
energy-related services ⓘ |
| status | subsidiary ⓘ |
| stockExchange | New York Stock Exchange ⓘ |
| tickerSymbol | POM NERFINISHED ⓘ |
| typeOfOwnership | investor-owned utility ⓘ |
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 Holdings Description of subject: Pepco Holdings is a regional energy utility company in the Mid-Atlantic United States that distributes electricity and related services to residential, commercial, and governmental customers.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Potomac Electric Power Company