About the project

Green hydrogen is gaining moment across Europe as feedstock, fuel or energy carrier and storage, as solid actions are needed to reach carbon neutrality by 2050. Hydrogen has many possible applications across industry, transport, energy and building sectors. Local gas grids across Europe are therefore working hard to get ready for its transport. Using existing gas distribution grids to deliver hydrogen and natural gas blends (H2/NG) requires a thorough assessment of the impact on infrastructure and material integrity.

Most projects assessing safe hydrogen compatibility with natural gas distribution grids (i.e. H21, HyDeploy, etc.) have performed experiments to study the leakage ratio, emission potential and explosion severity of vintage components. However, long-term material integrity assessment replicating distribution grid operating conditions in testing platforms is still necessary.

The Compatibility Assessment of Non-steel metallic Distribution gas grid materials with Hydrogen (CANDHy) project will test a range of relevant metallic materials, different from the well-studied steels, with a methodology involving simultaneous testing in independent R&D platforms with a common methodology.

This will allow to obtain reliable and reproducible results about hydrogen tolerance of materials present in low-pressure gas grids that have not been considered in previous research.