Western Interconnection

E284822

power transmission network synchronized electric power grid

The Western Interconnection is a major synchronized electric power grid that spans much of western North America, linking utilities and power plants across multiple U.S. states, Canadian provinces, and parts of Mexico.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (5)

Label	Occurrences
Western Interconnection canonical	14
Western Interconnection power grid	2
Pacific Northwest grid	1
Quebec Interconnection	1
U.S. Western Interconnection	1

How this entity was disambiguated

This entity first appeared as the object of triple T2616472 — 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: Western Interconnection
Context triple: [Right Powerhouse, gridConnection, Western Interconnection]

A. Eastern Interconnection
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.
B. Americal Division
The Americal Division was a U.S. Army infantry division active during World War II and the Vietnam War, historically notorious for its involvement in the My Lai massacre.
C. Midwest Connect
Midwest Connect was a regional airline brand in the United States that provided feeder and short-haul services, primarily in the Midwestern states.
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. Greater Union
Greater Union is an Australian cinema chain and film distribution company known for releasing and exhibiting a wide range of local and international films.
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: Western Interconnection
Target entity description: The Western Interconnection is a major synchronized electric power grid that spans much of western North America, linking utilities and power plants across multiple U.S. states, Canadian provinces, and parts of Mexico.

A. Eastern Interconnection
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.
B. Americal Division
The Americal Division was a U.S. Army infantry division active during World War II and the Vietnam War, historically notorious for its involvement in the My Lai massacre.
C. Midwest Connect
Midwest Connect was a regional airline brand in the United States that provided feeder and short-haul services, primarily in the Midwestern states.
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. Greater Union
Greater Union is an Australian cinema chain and film distribution company known for releasing and exhibiting a wide range of local and international films.
F. None of above. chosen

Statements (47)

Predicate	Object
instanceOf	power transmission network ⓘ synchronized electric power grid ⓘ
acronym	WECC region ⓘ
connects	electric utilities ⓘ load centers ⓘ power plants ⓘ
continent	North America ⓘ
country	Canada ⓘ Mexico ⓘ United States ⓘ linked to: United States of America
gridType	alternating current grid ⓘ
hasPart	bulk power transmission system ⓘ distribution utilities ⓘ electric power plants ⓘ
hasReliabilityStandards	NERC reliability standards ⓘ
includesResourceType	coal-fired generation ⓘ hydroelectric generation ⓘ natural gas-fired generation ⓘ renewable energy resources ⓘ solar power ⓘ thermal generation ⓘ wind power ⓘ
interconnectedVia	high-voltage direct current ties ⓘ
interconnectionFrequency	60 Hz ⓘ
isOneOf	major North American power interconnections ⓘ three main AC interconnections in the contiguous United States ⓘ
isPartOf	North American bulk power system ⓘ linked to: North American power transmission grid
isSeparatedFrom	Eastern Interconnection ⓘ Texas Interconnection ⓘ
operatingCharacteristic	coordinated dispatch ⓘ inter-utility power transfers ⓘ wide-area frequency control ⓘ
purpose	bulk power system reliability ⓘ electricity supply to consumers ⓘ long-distance power transmission ⓘ
regionServed	Northern Mexico ⓘ Western Canada ⓘ Western United States ⓘ linked to: western United States
regulatoryBody	Western Electricity Coordinating Council ⓘ
spansPartOf	Canada ⓘ Mexico ⓘ United States ⓘ linked to: United States of America
standardBody	North American Electric Reliability Corporation ⓘ
supports	retail electricity service ⓘ wholesale electricity markets ⓘ
synchronizationStatus	synchronously operated ⓘ
voltageLevel	high-voltage transmission ⓘ

How these facts were elicited