Des Irlandais Substation is a 315kV substation located in Des Irlandais, Quebec, Canada.

The Des Irlandais Substation project’s construction has begun in 2020. The works are expected to be commissioned in 2023.


Des Irlandais Substation project, which is an upgrade substation, will be operated by Hydro-Quebec.

The designed voltage level of the substation is 315/25kV and the operating voltage level is 315/25kV.

The step-in voltage of the project is 315kV and the step-out voltage is 25kV.

Des Irlandais Substation project development status

The development of the Des Irlandais Substation project was approved by Alberta Utilities Commission in 2020. The project is expected to be commissioned in 2023.

About Hydro-Quebec

Hydro-Quebec is a state-owned energy utility that generates, transmits, and distributes electricity. The company produces power from the sources such as hydro, diesel, gas, nuclear, wind, solar, biomass and others. Hydro-Quebec markets system capacity and manages electricity flow across Quebec; provides customer services and promotes energy efficiency. It also designs, constructs, and renovates the generation and transmission facilities, primarily for Hydro-Quebec Production and Hydro-Quebec TransEnergie. The company also develops battery materials for electric vehicles and has presence in the electric powertrain market. The company has operations in the US and Canada.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.