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As we continue to safely and reliably deliver energy to our customers, we’re also planning and building our network to play an important role in the transition to a lower carbon world. By the end of this year, all TQM Compressor Stations in Québec will operate with a primary electric unit and a gas unit as the secondary, except for the Lachenaie Compressor Station, which is still entirely electric.

Currently, we have two major projects underway:

For project requests:


What is a compressor station?

As gas flows through a pipeline, its motion is slowed down by friction, resulting in a loss of pressure. To keep gas continuously flowing at a desired rate, it requires pressure increases at specific points along the pipeline. These sites that are connected to the pipeline, are called compressor stations. The location and number of compressor stations required for a natural gas pipeline network depend on several factors, examples include the operating pressure of the pipeline, the diameter of the pipe used, and the desired volume of gas to be transported.

Projet Rive-Nord

TQM has recently completed the Projet Rive-Nord which was required to increase the capacity, reliability and flexibility of the pipeline system. The project included the construction of a new compression station in Blainville, Québec, connected to the existing TQM gas pipeline and the increase of electrical power at an existing TQM station in East Hereford, Québec.

New Compressor Station in Blainville

TQM recently completed the construction and interconnection of a new compressor station in Blainville, Québec, to maintain the desired flow and pressure within the existing gas pipeline. The project involved the construction of a new electric motor drive compressor unit as the primary and a second gas turbine unit as the secondary. The operational strategy of this combined electric and gas compressor station is to maximize the uptime of the electric units and only operate the gas-fired units during planned or unplanned downtime of the electric units in order to maintain elevated levels of service reliability while also minimizing emissions. The gas-fired units retain the ability to run the compressor station in the event of an electrical utility outage. Without the secondary units, critical natural gas supply to various customers – including hospitals, schools, institutions and homes – could be interrupted.

The Blainville location was chosen based on several criteria, primarily with a view to mitigate impacts on physical, human, biological, water and wetland environments as well as to access the site. TQM worked with the City of Blainville to ensure that the facilities were visually cohesive with urban planning guidelines..

Newly completed compressor station
Newly completed compressor station in Blainville

Upgrade work in East Hereford

The available electrical power at the existing electrical unit in East Hereford was increased to maintain the desired flow and pressure within the existing gas pipeline.

TQM reinforcement and asset purchase

TQM has been working on facility additions and upgrades necessary to ensure the reliability and security of natural gas supply in the Montérégie and Estrie regions. This project was a collaboration between Énergir, TC Energy and TQM to provide a long-term facility solution to address distribution shifts on the Énergir distribution system in the Estrie and Montérégie regions of Québec. This project will also reinforce the security of gas supply, while ensuring continued reliability for TQM.

This project has three components and is estimated to be completed by November 2022:

Map of the project

Click to view the map (PDF)

  • Sabrevois Asset Purchase: TQM will acquire a 64-km pipeline from Energir, that runs from an interconnection with TC Energy in Sabrevois, QC to Shefford, Québec, where it will interconnect with the existing TQM pipeline.
  • Compressor station in Bromont: Construction of a new compressor station, with an electric motor drive compressor unit as the primary and a second gas turbine unit as the secondary.
  • New interconnection at Saint-Basile-le-Grand: Construction of a new interconnection between TQM and Énergir.

Similar to the Blainville Compressor Station, the site of the Bromont Compressor Station was thoughtfully selected in collaboration with the City of Bromont. Several factors, including the mitigation of physical, human, biological, water and wetland environments impacts, were considered prior to selection of the site.

In addition, Énergir and TC Energy plan to construct the following as part of the TQM Reinforcement Project:

  • A new delivery station at Saint-Basile-le-Grand to be operated by Énergir
  • Unit addition at the existing Station 802 compressor station at Saint-Philippe, operated by TC Energy


TQM must apply to the Canada Energy Regulator (CER) before building our federally regulated pipelines. Upon receiving an application, CER reviews and assesses the proposed project’s details, including potential impact to local communities, property and the environment.


  • To view the application for TQM Reinforcement and Asset Purchase, visit the Canada Energy Regulator's website. A French version of the application can be found here. To view the French version of the Environmental and Socio-Economic Assessment for the project, please click here.
  • To view the application for the unit addition at the existing Station 802, visit the Canada Energy Regulator's website.
  • The French version of the application is available at the TC Energy website.

For project requests, contact