Current Bout-de-l’Île substation.

To meet increasing demand and ensure the long-term operability of facilities in the northeastern part of the metropolitan Montréal region, Hydro-Québec has prepared a plan that groups together several projects in the east end of the island of Montréal, including the addition of equipment to Bout-de-l’Île substation and the reorganization of lines in and around the substation.

As part of this project, between 2012 and 2014 Hydro-Québec replaced aging equipment—some of which dated back to 1956—with more powerful devices, as well as adding new equipment. We also connected Bout-de-l’Île substation to the 735-kV metropolitain loop, creating a direct link with Duvernay and Boucherville substations. Bout-de-l’Île substation is in a strategic position on the island of Montréal since it is a source substation for several substations in the east end of the island and contributes to the supply of satellite substations in southern Lanaudière.

Though most of the equipment is now in service, some civil work remains to be completed and some equipment will be installed on the substation site, with a view to commissioning by the end of 2014.

From 2015 to 2017, Hydro-Québec will reorganize the lines around the substation and will dismantle a section of the 735-kV line south of highway 40.