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Within the framework of a binational feasibility study, concepts for the introduction of sustainable technologies in the innovation region of Fessenheim and, based on these, various approaches to action for Franco‐German demonstration projects were developed. The overarching goal is the development of a sustainable and future‐oriented CO2‐neutral economic region. The transformation of society and the economy towards a renewable energy supply and sustainable use of resources, combined with the creation of future‐oriented jobs, is strongly promoted by the use of hydrogen as an energy carrier. Sustainably produced "green" hydrogen enables the almost immediate substitution of fossil hydrogen in industrial processes, the seasonal storage of renewable electricity and the flexible and efficient coupling of different energy sectors. The proposed pilot projects cover the entire value chain with green hydrogen, building on the specific regional characteristics and conditions. [ABSTRACT FROM AUTHOR]

The introduction of hydrogen as a safe energy carrier needs a robust knowledge base, tools for the design and safety assessment of hydrogen technologies built on it, and an internationally harmonised set of rules. Many of the innovative technologies imply hydrogen at high pressures and/or cryogenic temperatures, with which private users come into contact for the first time in distributed applications. In order to avoid over‐conservative, expensive safety solutions, while demonstrating the feasibility and safety of hydrogen applications and maintaining acceptance for the technology, also safety research must keep pace with, or better anticipate, trends in technological development. Thus, this overview article describes not only the current state of knowledge and technology regarding hydrogen safety, but also its further development. [ABSTRACT FROM AUTHOR]

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