Dorsalys replaces electricity pylons on a HVB line in the Nantes vineyards, for RTE

The high voltage Cheviré-Recouvrance line connects the substation in Gétigné, a small town in the Nantes vineyards, to the 225 kV Cheviré substation to the west of the Nantes conurbation, passing through densely populated areas as well as the Muscadet vineyards.

In the vineyard, four black pylons dating from 1930 were replaced by our power line technicians in 2023. A Super Puma heavy-lift helicopter will be needed in 2024 to replace a further 28 pylons, given the limited space available and omnipresent vines.

" Replacing a further 25 towers located mainly in densely populated urban areas will require the use of specific operating methods. As we can't deploy helicopters close to residential areas, we'll be using a 300-tonne crane, for example," explained Operations Manager Damien Kandula (HVB Lines department).

The project began in September 2023 and will continue until November 2024. Our experts have a total of 53 pylons on the Cheviré-Recouvrance HVB line to replace this year.