TransCanada to Expand Canadian Mainline Capacity

September 2017

TransCanada Corp. has announced that it will apply to the National Energy Board (NEB) to increase the capacity of the Canadian Mainline System through its Maple Compressor Station near Vaughan, ON. The approximately $160 million project is underpinned by 15-year contracts and will expand capacity to the southern Ontario market plus delivery to Atlantic Canada via the Trans Quebec & Maritimes Pipeline and Portland Natural Gas Transmission System.

The proposed project will add incremental compression and associated facilities on the Canadian Mainline to move an additional approximately 80 MMcf/d of clean-burning natural gas — enough to supply more than 300,000 homes on an annual basis.

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, with the project expected to be in service Nov. 1, 2019.

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