Element Energy

Hydrogen production and consumption profiles in salt caverns, the example of the Etrez (France) salt cavern

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HYPSTER is an FCH 2 JU funded project that aims to use salt cavern storage to connect hydrogen production by electrolysis to industrial and mobility uses.

This project is taking place at a Storengy underground gas storage site at Étrez, eastern France. It uses a salt cavern with a potential storage capacity of 44 tonnes of hydrogen. Onsite production of the green hydrogen will be carried out by a 1 MW electrolyser, using the territory’s renewable electricity sources. Currently in the study and design phase, the HYPSTER project will unfold in two phases:

  • A first experimentation and demonstration phase between 2021 and 2023, with a parallel commercial development of hydrogen customer supply in 2023;
  • A second phase for the commercialization of hydrogen storage services from 2024 onwards.

In partnership with ESK GMBH, ARMINES, INERIS, AXELERA, Element Energy, and INOVYN, this project is part of a dynamic region with increasing numbers of green hydrogen uses.

A first report was prepared by Element Energy and is available here. It provides an overview of different hydrogen production and consumption scenarios that can be used to test the cyclical operation of the salt cavern.

For more information about HyPSTER’s project, visit our website:
https://hypster-project.eu/

This project has received funding from the Fuel Cells and Hydrogen 2 Joint Undertaking under Grant agreement No 101006751. This Joint Undertaking receives support from the European Union’s Horizon 2020 research and innovation program, Hydrogen Europe and Hydrogen Europe research.

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