315/25-kV Patriotes substation and 315‑kV supply line
Project
Hydro‑Québec built a new 315/25-kV substation in Saint‑Eustache and 315-kV supply line to meet the growing needs of the municipalities of Saint‑Eustache, Deux‑Montagnes and Sainte‑Marthe‑sur‑le‑Lac.
Located in Saint-Eustache’s industrial sector, the new Patriotes substation was commissioned in October 2020. A new 5-km transmission line connects it to the existing 315-kV line north of Boulevard Arthur-Sauvé.
To connect customers to the new substation, new 25-kV underground distribution lines were built in the three municipalities to be served: Saint‑Eustache, Deux‑Montagnes and Sainte‑Marthe‑sur‑le‑Lac.
Take a virtual tour of the new Patriotes substation!
Discover the key elements that make the Patriotes substation project, developed in close collaboration with local communities, a success.
Questions or comments?
We continue to welcome your questions and comments about the project.
Project schedule
- DRAFT DESIGN
- Public participation process Fall 2015 – summer 2017
- PROJECT
- Filing of environmental impact statement Fall 2017
- Permitting Fall 2017–spring 2019
- Substation construction Spring 2019 – summer 2020
- Line construction Fall 2019 – summer 2020
- Commissioning Fall 2020