The RSE article by Gianluigi Migliavacca, Piergiovanni Domenighini, Claudio Carlini and Claudio Zagano entitled “Hydrogen: Prospects and Criticalities for Future Development and Analysis of Present EU and National Regulation,” published in MDPI’s ENERGIES journal, is online.

In Europe, the necessity to integrate ever-growing amounts of Renewable Energy Sources (RES) in order to implement the ambitious European decarbonization policy (Fit-for-55) and to preserve the security of energy supply (Repower-EU) are feeding the interest in hydrogen. This paper will provide a thorough analysis of prospects and criticalities for the development of hydrogen both as a carrier and as a feedstock and, definitively, as a key element for the implementation of the European decarbonization policies.