Hydro-Québec’s grid upgrade
First phase of the upgrade includes the optimization of the existing system and the construction of 850 km of 735 and 315 kV lines and 5 substations.
Image for illustration purposes.
Canada, Québec: Hydro-Québec is upgrading its grid to support the Québec energy transition. This backs the Action Plan 2035 and aims to meet an increasing requirement for clean and renewable electricity. An additional 60 TWh of clean electricity is necessary by 2035, equivalent to 8-9 GW of installed capacity. Hydro-Québec must reinforce the main transmission system to integrate new generation and ensure system reliability.
First phase of the upgrade includes the optimization of the existing system and the construction of 850 km of 735 and 315 kV lines and 5 substations in 3 areas. The infrastructure will allow new generation to be integrated into the grid.
Many stakeholders will be consulted, workers will be mobilized and around $10 billion in investments will be needed. Economic spinoffs for the province will total over $7 billion and are expected to benefit households.
The upgrade of the main transmission system will be rolled out in six administrative regions and will involve more than 25 regional county municipalities (MRCs), almost 200 municipalities and 11 Indigenous communities from 6 First Nations. Three priority areas (Cete-Nord, Appalaches-Bas-Saint-Laurent and Vallee-du-Saint-Laurent) have been identified to allow new generation to be integrated into the grid and transmitted to consumption centres. The infrastructure will be commissioned between 2031 and 2036.
Source: T&D World
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