TC Energy's natural gas pipelines business builds, owns and operates a network of natural gas pipelines across North America that connects gas production to interconnects and end use markets. The company transports over 30% of continental daily natural gas demand through approximately 94,000 km (58,409 mi) of pipelines. In addition, the company owns 532 Bcf of natural gas storage facilities, making TC Energy one of the largest natural gas storage providers in North America. This segment is TC Energy's largest segment, generating approximately 87% of the company's EBITDA in 2024. The Natural Gas Pipelines business is split into three operating segments: Canadian Natural Gas Pipelines, U.S. Natural Gas Pipelines, and Mexico Natural Gas Pipelines.
NGTL System (24,631 km) A wholly owned subsidiary, NOVA Gas Transmission Ltd., connects gas producers in the Western Canadian Sedimentary Basin with consumers and exports. TC Energy has the largest and most extensive natural gas network in Alberta.
Canadian Mainline (14,082 km) This pipeline serves as a long haul delivery system transporting natural gas from the Western Canadian Sedimentary Basin across Canada to Ontario and Québec to deliver gas to downstream Canadian and U.S. markets. The pipeline has evolved accommodate additional supply connections closer to its markets. The mainline is over 60 years old
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Columbia Gas (18,768 km) This natural gas transportation system serves the Appalachian Basin, which contains the Marcellus and Utica plays, two of the largest natural gas shale plays in North America. The system also interconnects with other pipelines that provide access to the U.S. Northeast and the Gulf of Mexico.
ANR Pipeline System (15,075 km) This pipeline system connects supply basins and markets throughout the U.S. Midwest, and south to the Gulf of Mexico. This includes connecting supply in Texas, Oklahoma, the Appalachian Basin and the Gulf of Mexico to markets in Wisconsin, Michigan, Illinois and Ohio. In addition, ANR has bi-directional capability on its Southeast Mainline and delivers gas produced from the Appalachian basin to customers throughout the Gulf Coast Region.
Columbia Gulf (5,419 km) — This pipeline system was originally designed as a long haul delivery system transporting supply from the Gulf of Mexico to major demand markets in the U.S. Northeast. The pipeline is now transitioning to a north-to-south flow and expanding to accommodate new supply in the Appalachian Basin and its interconnects with Columbia Gas and other pipelines to deliver gas to various Gulf Coast markets.
Mexico Pipeline Network (3,500 km) — This consists of a network of natural gas pipelines in Mexico.
Southeast Gateway Pipeline (715 km) — A marine pipeline that will transport natural gas, connecting the supply from Tuxpan, Veracruz, to delivery points in Coatzacoalcos, Veracruz, and in Paraíso, Tabasco.
Coastal Gaslink Pipeline Project (670 km) – Coastal Gaslink delivers natural gas from the Dawson Creek area to a facility near Kitimat, where LNG Canada prepares it for export to global markets by converting the gas to a liquefied state—also known as liquefied natural gas (LNG).
Energy
TC Energy's Energy division consists of power generation and unregulated natural gas storage assets. The power business consists of approximately 4,650 megawatts (MW) of generation capacity owned or under development. These assets are located primarily in Canada and are powered by natural gas, nuclear, and wind.
Western Power These assets include approximately 1,000 MW of power generation capacity through four natural gas-fired cogeneration facilities in Alberta and one in Arizona.
Eastern Power These assets include approximately 2,900 MW of power generation capacity in Eastern Canada.
Bruce Power This operates the Bruce Nuclear Generating Station in Ontario. Comprising eight nuclear units with a combined capacity of approximately 6,400 MW, it is currently the largest operating nuclear power plant in the world. TC Energy holds a 48.4% interest in the asset.
Saddlebrook Solar + Storage project in Aldersyde, Alberta consisting of 81 MW of solar generation with utility-scale energy storage.
TC Energy has proposed two pumped storage projects to store and supply clean energy. The Ontario Pumped Storage Project near Meaford, Ontario would provide 1000 MW of clean energy and the proposed Canyon Creek Pumped Storage Project near Hinton, Alberta would provide 75 MW of clean energy.
