Power Transmission Projects

735-kV Line Connecting Chamouchouane Substation to Bout-de-l’Île Substation

To integrate the output from new generating stations, combined with new interconnections and transmission service contracts, Hydro-Québec plans to build a new 735-kV transmission line linking the northeastern Québec grid to the metropolitan loop.

The approximately 400-km line will run from Chamouchouane substation in the Saguenay–Lac-Saint-Jean region to Bout-de-l’Île substation in Montréal. This project is an optimal solution with respect to meeting growth in energy requirements, bolstering energy supply to major load centres, reducing energy losses and improving system management flexibility.

Stakeholder participation

Hydro-Québec will implement a communication program to maintain a dialogue with the community while the studies are being carried out. The company will thus be able to take the concerns and expectations expressed by the public and by key stakeholders into account so as to best adapt the project to local realities.

Meetings with community stakeholders began in fall 2010. In winter 2010-2011, Hydro-Québec will continue its information and dialogue process concerning project options. In summer 2012, it will inform the public of the solution with the least social, environmental, technical and economic impacts. If the company obtains the necessary government approvals for this project, construction work could begin in winter 2014-2015 with a view to commissioning the line in fall 2017.

To learn more about the project, consult the Documents section above.

Public meetings will be held in the regions concerned in 2012.