Saint-Gotthard road tunnel: Nexans to install Switzerland’s longest high-voltage underground line

Core Insights - Nexans, in collaboration with Swissgrid, will install Switzerland's longest high-voltage underground line in the Saint-Gotthard Road tunnel, marking a significant advancement in electricity transmission along the north-south corridor of Switzerland [1][2][7] - The project involves an 18 km long 220 kV high-voltage line, which will replace the existing overhead line, and is set to be completed by 2030 [1][2] - The project is valued at approximately €50 million, representing the largest contract ever signed by Nexans Switzerland, highlighting the company's strong position in the Swiss market [3] Project Details - The preparatory phase for the project will take place from 2025 to 2028, with construction starting in 2028 and completion expected in 2030 [2][7] - Nexans will supply a total of 57 km of extra-high voltage cable, with manufacturing taking place in Charleroi, Belgium, and project engineering and installation handled in Cortaillod, Switzerland [2] - The project aims to leverage synergies with existing infrastructure, contributing to landscape preservation and efficient land use [2] Environmental Impact - Once operational, the new underground line will allow for the dismantling of overhead cables crossing the Gotthard Pass, reducing environmental and landscape impact in the area [4] - Four pylons near the summit will remain but will be reduced in size to continue supporting a high-voltage connection for Swiss Federal Railways (SBB) [4] Company Overview - Nexans has over a century of experience in electrification and is committed to sustainable and decarbonized electricity solutions, with a reported €7.1 billion in standard sales for 2024 [5] - The company operates in 41 countries and is recognized as a global leader in climate action, aiming for Net-Zero emissions by 2050 [5]