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Great Lakes Gas Transmission

This bi-directional pipeline delivers gas to customers in the U.S. Midwest and Central Canada. Great Lakes plays a key role in balancing natural gas demands in upper Midwest energy markets by managing seasonal fluctuations in gas supply and demand, and providing access to storage fields in Michigan and Southern Ontario.

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Great Lakes compressor facility

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Great Lakes map

Asset information

TCP Ownership

46.45% 
53.55% is held by subsidiaries of TC Energy

Began operations

1967

Length

2,115 miles

Capacity

2.4 Bcf/d

 

Compressor stations

14

Primary supply source

Emerson 2 interconnect

Originates near:

Emerson, Manitoba, Canada
(St. Vincent, Minnesota)

Terminates near

 Sault Ste. Marie, Michigan; and St. Clair, Michigan

Primary markets served

Union Dawn interconnect,
Minnesota, Wisconsin and Michigan

New opportunities

The Alberta XPress project, being undertaken by ANR, a TC Energy-owned system, is expected to utilize capacity on Great Lakes to connect growing WCSB supply to U.S. Gulf Coast LNG export markets. Requiring no material capital spend, Great Lakes is expected to benefit from a total 165,000 Dth/d long-term, max rate contractual arrangement with ANR for an average term of 19 years with an anticipated in-service date in 2022.

Documents and Maps

More information

Alberta XPress Project Webpage

For the latest information on contracts, customers, projects and other details see TC PipeLines, LP Partnership Profile (updated quarterly)

For commercial information visit TCPlus.com