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Ingérop contributes to the Vallée Sud Hydrogène project thanks to its hydrogen expertise

Ingérop va réaliser deux stations « hydrogène » dans les Hauts-de-Seine (92) pour la société Vallée Sud Hydrogène, composée d’Hynamics, filiale hydrogène d’EDF et de Vallée Sud Mobilités

The first will be dedicated to hydrogen production, storage and distribution. The second will provide storage and distribution. These stations will initially power municipal vehicles such as buses and refuse collection vehicles. Through a dedicated Groupement Momentané d’Entreprises, Ingérop, as lead contractor, is offering for the first time a complete turnkey solution (design, construction and commissioning) in the field of hydrogen.


In line with its “Vision 2027” strategy, Ingérop is reinforcing its expertise and actions to address climate change by positioning ecology as the primary focus of its development. In this context, the Group sees hydrogen, whether renewable or low-carbon, as a means of decarbonizing numerous sectors such as industry and mobility, and improving the efficiency of renewable energies. Indeed, Ingérop has been expanding its expertise in this field for almost 10 years. Thanks to its multidisciplinary approach, the group is positioned across the entire hydrogen value chain, with consulting, project management and turnkey operations.

It is in this context that Ingérop is participating in the Vallée Sud Hydrogène project, developed by Vallée Sud Mobilités and Hynamics.


Financed by the IDF Region, Ademe and the European Union through the CEF*-Transport AFIF* financing mechanism operated by CINEA*, the Vallée Sud Hydrogène project aims to bring into operation two hydrogen production, storage and distribution sites, to support the energy transition of the Vallée-Sud-Grand-Paris region. Located in Châtenay-Malabry and Châtillon, these sites will house various facilities built by Ingérop and SPIE Industrie:

  • The Châtenay-Malabry site will be equipped with a hydrogen production station using water electrolysis. A 20,000 V high-voltage power line will supply the 5 MWe electrolyzer. The hydrogen will be compressed and stored at several pressure levels (from 500 to 1,000 bars).
  • The Châtillon site will be supplied with hydrogen from the Châtenay-Malabry site by road transport, and will be equipped only with a storage and distribution area.

In all, more than 2 tonnes of hydrogen will be produced every day, and 3,000 tonnes of Co2 could be saved every year.To build these two sites, the project promoters called on the Ingérop and SPIE Industrie consortium. Thanks to its expertise, Ingérop covers the entire hydrogen value chain. The consortium will be responsible for the design, supply, installation and commissioning of the facilities. The first study phase has just begun and will last 6 months.

Atawey will supply the hydrogen compression, storage and distribution equipment.

Scheduled for delivery in 2025, these two stations are intended to contribute to the decarbonization of the region’s mobility and serve as examples for the development of this process at other sites.

*CEF – Connecting Europe Facility
*AFIF – Alternative Fuels Infrastructure Facility
*CINEA – European Executive Agency for Climate, Infrastructure and the Environment