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TransCanada GTN System Overview
Gas Transmission Northwest
Corporation, also known as the GTN System, has been transporting natural
gas to Western energy markets safely and reliably for more than 40 years.
Here is a brief overview:
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Length of System
612 miles.
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Location of Pipeline
Begins at British Columbia-Idaho border,
extends through northern Idaho, southeastern Washington and central
Oregon, and ends at the Oregon-California border.
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Interconnects
The GTN system interconnects with TransCanada's
BC System at Kingsgate, British Columbia; with Williams (Northwest
Pipeline Corporation) at Spokane and Palouse, Wash., and at Stanfield,
Ore.; and with Pacific Gas & Electric Company and Tuscarora
Gas Transmission Company at Malin, Ore. Multiple taps also connect
the GTN System to Avista Corporation and Cascade Natural Gas.
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Gas Source
Western Canada is the primary source, but
the GTN System also receives U.S. domestic gas supplies at Stanfield,
Ore.
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System Capacity:
The GTN System can transport more than
2.9 billion cubic feet of gas a day (Bcf/d). More than 2.1 Bcf/d
can be delivered to California, and up to 1 Bcf/d to the Pacific
Northwest (though typical deliveries there are 600-700 million cubic
feet a day).
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Maximum allowable operating pressure for pipeline system:
911 pounds per square inch (psi).
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Number of compressors
12 compressor stations (5 stations have
three units, 7 stations have 2 units), spaced 50 to 60 miles apart
along the pipeline, providing approximately 513,400 horsepower (ISO).
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Services
- Transportation of natural gas, both firm and interruptible.
- Parking: Customers can store gas in pipeline.
- Lending: Customers can borrow gas from inventory and return
it later.
- Capacity release: Customers can market their reserved capacity to other shippers.
- Pacific Express: Customers can conduct transactions via this
Internet tool.
- Market centers: Customers can move gas into and out of their own "paper pools" to increase flexibility in the purchase and sale of gas.
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Number of customers
More than 45 companies receive firm transportation
under long-term contracts. Firm and interruptible transportation
is also provided for more than 100 producers, marketers, electric
and gas utilities, and other end-users, many of whom use firm capacity
acquired through capacity release.
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Portland Main Office
1400 SW 5th Avenue, Suite 900
Portland, OR 97201
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Other Offices
Business office in Calgary. District offices in Sandpoint (Idaho), Spokane (Wash.), Rosalia (Wash.), Wallula (Wash.), Redmond (Ore.) and Klamath Falls (Ore.). Maintenance and compressor stations located along pipeline route.
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Number of GTN System employees
About 150
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Year/location of incorporation
1957, in California
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Ownership
The GTN System is part of TransCanada Corp.,
based in Calgary in the Canadian province of Alberta. With more than 50 years' experience, TransCanada is a leader in the responsible development and reliable operation of North American energy infrastructure including natural gas pipelines, power generation, gas storage facilities, and projects related to oil pipelines and LNG facilities. TransCanada's
network of wholly owned pipelines extends more than 36,500 miles (59,000 kilometres), tapping into virtually all major gas supply basins in North America. TransCanada is one of the continent's largest providers of gas storage and related services with approximately 370 billion cubic feet of storage capacity. A growing independent power producer, TransCanada owns or has interests in, over 10,900 megawatts of power generation in Canada and the United States. TransCanada's common shares trade on the Toronto and New York stock exchanges under the symbol TRP.
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Date service began
December 2, 1961. The GTN System was the
first fully automated natural gas pipeline in the U.S.
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Regulatory agencies
The principal agencies regulating the GTN
System are the Federal Energy Regulatory Commission and the U.S.
Department of Transportation.
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Credit agency ratings
Moody's rating A2
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