Hydro-Québec commissions new transmission facilities worth $1.3 billion

Hydro-Québec put into service new transmission facilities built as part of the 735-kV Chamouchouane—Bout-de-l’ÃŽle project.

More than 1,250 people participated in the construction of some 1,000 towers since 2016, according to the utility. The project has also resulted in $1.1 billion in economic spinoffs in specialized services and the purchase of goods and materials in the province.

The project’s three components include:

“- A new 735-kV transmission line 420 km long between Chamouchouane substation in La Doré, Saguenay—Lac-Saint-Jean, and the Montréal metropolitan loop.

“- The 735/120/25-kV Judith-Jasmin substation, located in Terrebonne and connected to the new line. The substation will meet the needs of both the 735-kV main transmission system and regional and local demand.

“- A new 19-km segment of the 735-kV line to supply Bout-de-l’ÃŽle substation in Montréal.

Some figures for the Chamouchouane—Bout-de-l’ÃŽle project:

“- $1.3 billion total cost

“- 5,040 km of conductors (cables transporting energy) installed

“- 1,000 towers erected

“- 33,000 tonnes of steel used

“- 2,500,000 construction hours

According to the utility, thanks to these new facilities, power losses on the Hydro-Québec transmission system will decrease considerably, whereas operating flexibility will increase, and this, to the benefit of all customers.

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The Clarion Energy Content Team is made up of editors from various publications, including POWERGRID International, Power Engineering, Renewable Energy World, Hydro Review, Smart Energy International, and Power Engineering International. Contact the content lead for this publication at Jennifer.Runyon@ClarionEvents.com.

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