Société des Grands Projets awarded TSO, a subsidiary of NGE, a EUR 65 million contract for the linear railway systems of Line 18 West of the Grand Paris Express.
This new contract covers a 9 km section between the municipalities of Versailles, Guyancourt, and Montigny-le-Bretonneux.
The scope of works awarded to TSO includes the supply and installation of the track, the third rail for power supply, as well as linear equipment (walkways, dry risers, cable routes) along 9 km of double-track tunnel, complemented by 200 metres of cut-and-cover section at Saint-Quentin Est station. The section will pass through Guyancourt, Satory, and Versailles – Chantiers stations.
In line with what has already been delivered on Line 16, TSO will use low-carbon or green rails which are produced using electric arc furnaces rather than coal-fired blast furnaces. This avoids 1.455 tonnes of CO₂ equivalent per tonne of rails produced. It is also worth noting that 95% of the steel used in rail production comes from recycled steel.
“This new contract is part of NGE’s development strategy, in which decarbonized mobility is one of the main pillars. Building essential infrastructure that directly contributes to the decarbonisation of transport is a source of great pride,” said Gilles Philibert, TSO Vice President.
With this contract for Line 18 West, NGE Group has secured 23 contracts as part of the Grand Paris Express. Already responsible for the linear railway systems across the entirety of Line 16, TSO is once again confirming its expertise on Grand Paris Express projects. This new contract builds on the experience gained by NGE teams on Lines 11, 15, 16 and 17, as well as on EOLE, the western extension of the RER E line inaugurated in 2024.
Line 18 will connect the major economic hubs of Essonne and Yvelines, serving Paris-Saclay, one of the world’s leading centres for Research & Development. The new line will provide a concrete response to the mobility needs of the region. It will offer an efficient alternative for the 65,000 students of the Saclay plateau, who are currently largely reliant on buses, and will ultimately serve the Orly-Rungis economic hub, home to over 70,000 jobs and 1,850 companies.
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