Eastern Interconnection
E123613
The Eastern Interconnection is one of North America's major synchronized AC power grids, spanning much of the eastern and central United States and parts of Canada.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Eastern Interconnection canonical | 5 |
| Midwest power grid | 1 |
| Ontario–New York interconnection | 1 |
| Southeastern United States regional grid | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1090188 — 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: Eastern Interconnection Context triple: [West Virginia, primaryElectricGridInterconnection, Eastern Interconnection]
-
A.
Northeast Regional
Northeast Regional is one of Amtrak’s primary intercity passenger rail services, operating frequent medium-distance trains along the busy Northeast Corridor and adjacent routes.
-
B.
Northern United States
The Northern United States is the broad region of U.S. states that stretch along the country’s northern border, characterized by colder climates, significant industrial and urban centers, and proximity to Canada.
-
C.
Eastern United States
The Eastern United States is the region of the country along and near the Atlantic coast, encompassing densely populated states, major historic cities, and key economic and political centers.
-
D.
Continental U.S. NORAD Region
The Continental U.S. NORAD Region is the North American Aerospace Defense Command component responsible for aerospace warning and control over the contiguous United States.
-
E.
East Region
The East Region is one of the four geographic brackets used to organize teams and games in the NCAA Division I Men’s Basketball Tournament.
- 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: Eastern Interconnection Target entity description: The Eastern Interconnection is one of North America's major synchronized AC power grids, spanning much of the eastern and central United States and parts of Canada.
-
A.
Northeast Regional
Northeast Regional is one of Amtrak’s primary intercity passenger rail services, operating frequent medium-distance trains along the busy Northeast Corridor and adjacent routes.
-
B.
Northern United States
The Northern United States is the broad region of U.S. states that stretch along the country’s northern border, characterized by colder climates, significant industrial and urban centers, and proximity to Canada.
-
C.
Eastern United States
The Eastern United States is the region of the country along and near the Atlantic coast, encompassing densely populated states, major historic cities, and key economic and political centers.
-
D.
Continental U.S. NORAD Region
The Continental U.S. NORAD Region is the North American Aerospace Defense Command component responsible for aerospace warning and control over the contiguous United States.
-
E.
East Region
The East Region is one of the four geographic brackets used to organize teams and games in the NCAA Division I Men’s Basketball Tournament.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
electrical grid
ⓘ
interconnected power system ⓘ synchronous AC power grid ⓘ |
| abbreviation | EI ⓘ |
| coexistsWith |
Western Interconnection
ⓘ
surface form:
Quebec Interconnection
Texas Interconnection ⓘ Western Interconnection ⓘ |
| continent | North America ⓘ |
| countryCoverage |
Canada
ⓘ
United States of America ⓘ
surface form:
United States
|
| currentType | alternating current ⓘ |
| frequency | 60 Hz ⓘ |
| function |
bulk power transmission
ⓘ
inter-regional power exchange ⓘ long-distance electricity transfer ⓘ |
| governedBy |
independent system operators
ⓘ
regional transmission organizations ⓘ |
| gridTopology | meshed high-voltage network ⓘ |
| hasConstraint | must maintain synchronous operation across member utilities ⓘ |
| hasFeature |
interconnected reliability operations
ⓘ
large-scale system stability coordination ⓘ synchronized frequency control ⓘ |
| includes |
multiple balancing authorities
ⓘ
multiple regional transmission organizations ⓘ |
| interconnectionMethodToOtherGrids | high-voltage direct current ties ⓘ |
| interconnectionStandard | NERC reliability standards ⓘ |
| interconnectionType | synchronous ⓘ |
| oneOf | four major North American interconnections ⓘ |
| partOf | North American power transmission grid ⓘ |
| planningAuthority | regional reliability entities under NERC ⓘ |
| regionCoverage |
central Canada
ⓘ
central United States ⓘ Eastern Canada ⓘ
surface form:
eastern Canada
Eastern United States ⓘ
surface form:
eastern United States
|
| regulatoryJurisdiction |
Federal Energy Regulatory Commission
ⓘ
provincial energy regulators in Canada ⓘ |
| reliabilityCoordinator | North American Electric Reliability Corporation ⓘ |
| separatedFrom |
Quebec Interconnection by asynchronous ties
ⓘ
Texas Interconnection by asynchronous ties ⓘ Western Interconnection by asynchronous ties ⓘ |
| supports |
retail electricity service to tens of millions of customers
ⓘ
wholesale electricity markets ⓘ |
| synchronizationBoundary |
North American power transmission grid
ⓘ
surface form:
Quebec Interconnection
Texas Interconnection ⓘ Western Interconnection ⓘ |
| voltageLevel | high-voltage transmission ⓘ |
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: Eastern Interconnection Description of subject: The Eastern Interconnection is one of North America's major synchronized AC power grids, spanning much of the eastern and central United States and parts of Canada.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ontario–New York interconnection
this entity surface form:
Southeastern United States regional grid
this entity surface form:
Midwest power grid