FirstEnergy
E828144
FirstEnergy is a major American energy company that generates, transmits, and distributes electricity to customers across several states in the Midwest and Mid-Atlantic regions.
All labels observed (1)
| Label | Occurrences |
|---|---|
| FirstEnergy canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T9881938 — 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: FirstEnergy Context triple: [FirstEnergy Stadium (Reading), namedAfter, FirstEnergy]
-
A.
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.
-
B.
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.
-
C.
DTE Energy
DTE Energy is a Detroit-based diversified energy company that provides electric and natural gas utility services to customers in Michigan and operates various energy-related businesses across the United States.
-
D.
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.
-
E.
Xcel Energy
Xcel Energy is a major U.S. electric and natural gas utility company serving millions of customers across several Midwestern and Western states.
- 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: FirstEnergy Target entity description: FirstEnergy is a major American energy company that generates, transmits, and distributes electricity to customers across several states in the Midwest and Mid-Atlantic regions.
-
A.
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.
-
B.
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.
-
C.
DTE Energy
DTE Energy is a Detroit-based diversified energy company that provides electric and natural gas utility services to customers in Michigan and operates various energy-related businesses across the United States.
-
D.
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.
-
E.
Xcel Energy
Xcel Energy is a major U.S. electric and natural gas utility company serving millions of customers across several Midwestern and Western states.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
electric utility company
ⓘ
public company ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| energySource |
fossil fuel power plants
ⓘ
nuclear power plants ⓘ renewable energy sources ⓘ |
| formedByMergerOf |
Centerior Energy
NERFINISHED
ⓘ
Ohio Edison NERFINISHED ⓘ |
| foundedBy |
Centerior Energy
NERFINISHED
ⓘ
Ohio Edison NERFINISHED ⓘ |
| gridRole | regional transmission organization participant ⓘ |
| hasWebsite | https://www.firstenergycorp.com ⓘ |
| headquartersLocation | Akron, Ohio NERFINISHED ⓘ |
| inception | 1997 ⓘ |
| industry |
electric power
ⓘ
energy ⓘ |
| legalForm | corporation ⓘ |
| locatedInTheAdministrativeTerritorialEntity | Ohio NERFINISHED ⓘ |
| notableEvent |
involved in a 2020–2021 Ohio nuclear plant bribery scandal
ⓘ
involved in the 2003 Northeast blackout investigation ⓘ |
| numberOfCustomers | millions of customers ⓘ |
| operatesIn |
Maryland
NERFINISHED
ⓘ
New Jersey NERFINISHED ⓘ New York NERFINISHED ⓘ Ohio NERFINISHED ⓘ Pennsylvania NERFINISHED ⓘ Virginia NERFINISHED ⓘ West Virginia NERFINISHED ⓘ |
| owns | FirstEnergy Corp. utilities ⓘ |
| providesService |
retail electric service
ⓘ
wholesale power sales ⓘ |
| regulator | Public Utilities Commission of Ohio NERFINISHED ⓘ |
| sector | utilities ⓘ |
| serves |
Mid-Atlantic region of the United States
NERFINISHED
ⓘ
Midwest region of the United States NERFINISHED ⓘ |
| serviceType |
electricity distribution
ⓘ
electricity generation ⓘ electricity transmission ⓘ |
| stockExchange | New York Stock Exchange ⓘ |
| subsidiary |
Jersey Central Power & Light
NERFINISHED
ⓘ
Metropolitan Edison Company NERFINISHED ⓘ Monongahela Power Company NERFINISHED ⓘ Ohio Edison Company NERFINISHED ⓘ Penn Power NERFINISHED ⓘ Pennsylvania Electric Company NERFINISHED ⓘ Potomac Edison Company NERFINISHED ⓘ The Cleveland Electric Illuminating Company NERFINISHED ⓘ The Toledo Edison Company NERFINISHED ⓘ West Penn Power Company NERFINISHED ⓘ |
| tickerSymbol | FE NERFINISHED ⓘ |
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: FirstEnergy Description of subject: FirstEnergy is a major American energy company that generates, transmits, and distributes electricity to customers across several states in the Midwest and Mid-Atlantic regions.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.