Gas Transmission Northwest

A natural Gas project

Gas Transmission Northwest (GTN) is a 1,377-mile (2,216-km) pipeline system that transports Canadian natural gas to communities in Washington, Idaho, Oregon and California. With capacity to deliver as much as 2.7 billion cubic feet per day (Bcf/d), GTN offers families and businesses in the Pacific Northwest and California a safe and reliable source of daily fuel for cooking, heating, air conditioning and more.

The GTN system was improved in 2024 by successfully completing the GTN XPress Project, which upgraded three gas compressor stations within its current footprint. This enhancement increases supply reliability, keeps energy affordable and allows GTN to meet the growing energy demands of the Pacific Northwest and West Coast regions, with natural gas supplies sourced from the Rocky Mountains in the United States.

For commercial information, visit TCPlus.com.

Facts & figures Project support Project map

Fact & Figures

Moves up to 2.85 bcf/d – Enough natural gas to Serve half a million homes

Operating since 1961 delivering reliable and affordable energy

Extends 1,337 miles (2,216 km), including 13 compressor stations along the existing footprint

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Project support

“Since 2014, demand on the existing GTN system has surged more than 50 percent, while access to lower cost supplies has been constrained. This market dynamic has led to unnecessarily high energy prices and strained reliability for consumers in the region. The GTNXP project, consisting of limited software and other upgrades to existing infrastructure, addressed this issue by delivering additional reliable and affordable energy. FERC’s bipartisan approval of the project reaffirmed that it is in the public interest and in the words of the commission, will 'provide a tangible benefit to consumers through added reliability and by providing access to lower-cost gas.”

- Tina Faraca, TC Energy Executive Vice-President and Chief Operating Officer, Natural Gas Pipelines

“Projects such as GTNXP will help ensure we have the energy needed to grow our economy in a way that is delivered safely and reliably. The project will serve critical needs in meeting residential, commercial and industrial demand for natural gas and renewable natural gas (RNG)…Additionally, TC Energy is actively working to reduce the natural gas carbon intensity for the fuel it delivers”

- Sharla Moffett. Senior Policy Director, Oregon Business & Industry

“Projects like the GTN Xpress utilize existing infrastructure with new technology to provide additional value to consumers in the Northwest.”

- Russ Fulcher, Idaho's 1st Congressional District Congressman

Project map

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How are we regulated?

GTN is governed according to regulations outlined by the U.S.Federal Energy Regulatory Commission (FERC).

Visit ferc.com

Federal Energy Regulatory Commission

LOCAL1-202-502-6088

TOLL-FREE 1-866-208-3372

Ways to reach us

If you have any questions about the Project, please reach out to us via the contact information below.

Gas Transmission Northwest (TC Energy)

700 Louisiana Street
Houston, Texas 77002

PHONE 1-832-320-5000

EMAIL communications@tcenergy.com

Emergency Response

Our commitment to the safety of our pipelines and facilities is unwavering. In case of an emergency, visit our Contact page for our complete list of emergency numbers.

Landowner Helpline

A key component in maintaining the integrity of our facilities is input from stakeholders: Tribal groups, landowners and governments. If you have questions or concerns, please let us know.

Head Office
700 Louisiana Steet
Houston, Texas 77002

TOLL-FREE 1-877-287-1782

Media Relations

TC Energy welcomes enquiries from media. Please direct questions to:

TOLL-FREE 1-800-608-7859 (North America)

EMAIL media@tcenergy.com

Investor Relations

TOLL-FREE 1-800-361-6522 (North America)

EMAIL investor_relations@tcenergy.com