TransCanada plans Canadian Mainline capacity increase

TransCanada Corp. will apply to Canada’s National Energy Board (NEB) to expand the capacity of its 14,114-km Canadian Mainline System through its Maple Compressor Station near Vaughan, Ont.

The $160-million project is underpinned by 15-year contracts and will increase capacity to southern Ontario plus delivery to Atlantic Canada via the Trans Quebec and Maritimes Pipeline and Portland Natural Gas Transmission Systems.

The proposed project will add incremental compression and associated facilities on the Canadian Mainline to move an additional 80 MMcfd of gas.

Once TransCanada has completed its tariff process for capacity additions, an application to approve the associated facilities is expected to be filed with the NEB in early 2018, to meet a Nov. 1, 2019, in-service date. The investment is part of a $500-million program that TransCanada is undertaking to support additional transportation of Canadian and US gas along the Canadian Mainline System.