Summary#
On January 26, 2026, Montréal city council adopted its position that Hydro-Québec’s proposed underground 315-kilovolt power line between the postes des Irlandais and Guy is consistent with the goals of the agglomeration’s development plan. This is a conformity finding, not an assessment of whether the project is desirable or an approval of the project itself. The agglomeration council makes the final decision at a later meeting.
- The proposed line, L3146, would run about 2.2 kilometres through the Sud-Ouest and Ville-Marie boroughs. Hydro-Québec has proposed three possible routes.
- City council authorized the city clerk to send Hydro-Québec the conformity notice required by law.
- City staff found the proposed routes fit the plan’s land-use rules for public infrastructure and do not conflict with its other objectives, including those concerning archaeological-interest areas.
- Hydro-Québec plans to start work in spring 2026 and put the line into service in fall 2027; these are its planned dates, not guarantees.
What it means for you#
- Residents and businesses near the proposed routes: The city’s decision does not itself authorize construction or settle which of the three proposed routes will be used. The materials do not describe a construction schedule by location or specific effects on nearby properties.
- Hydro-Québec: The city clerk is authorized to send it the conformity notice. City staff say the project would replace an existing underground line as part of work at poste Guy and the addition of a new 315-kilovolt connection at poste des Irlandais.
- The public: The decision addresses consistency with the development plan. City staff say the notice is not an assessment of the project’s desirability or an approval or endorsement of it.
Money#
Hydro-Québec estimates the total project investment at about $26 million.
- The materials do not say how much, if anything, the City of Montréal would pay.
What is unclear#
- Which of Hydro-Québec’s three proposed routes will be chosen.
- What construction impacts residents, businesses, or public spaces may face, and how those impacts would be handled.
- Whether further archaeological work or other project approvals will be required.
Case for#
- A possible argument for the city’s position is that the plan allows this type of public infrastructure in the areas crossed by the proposed routes.
- City staff say the project does not conflict with the plan’s vision or other applicable rules.
- Staff say archaeological-potential studies and inventories were done for the project, addressing the plan’s objectives for archaeological-interest areas.
Case against#
- The conformity finding does not assess whether the project is the best option or whether its expected benefits justify its costs.
- The materials do not identify the chosen route or explain how construction effects on nearby residents and businesses would be managed.
- The city’s finding is limited to consistency with the development plan; it does not establish that the project has no other impacts.