With four congenerating plants in Alberta, TransCanada manages, operates and markets close to 450 megawatts (MW) of electricity. Alberta Power Marketing offers wholesale power for a range of industries, including agriculture, oil and gas, commercial real estate, large scale commercial and industrial, public institutions and brokers and consultants.

The TQM Pipeline System is a 573 km natural gas pipeline network in the Province of Quebec between Saint-Lazare, located west of Montreal, and Saint-Nicolas, located on the South Shore of Quebec City, and between Lachenaie, located East of Montreal, and East Hereford on the New Hampshire border.

The Canadian Mainline pipeline is 4,114 km (8,770 mile) in length and has safely carried natural gas from the Western Canada Sedimentary Basin (WCSB) to Ontario and beyond throughout its history.