The three hydrogen lead projects are a central contribution of the Federal Ministry of Education and Research (BMBF) to the implementation of the National Hydrogen Strategy. Taken together, they represent the largest funding initiative of the Federal Ministry of Education and Research on the subject of the energy transition and provide a decisive impetus for Germany’s entry into the hydrogen economy. https://www.wasserstoff-leitprojekte.de/leitprojekte/transhyde. H2Giga is dedicated to the mass production of water electrolysers, H2Mare explores possibilities to produce hydrogen and its downstream products directly at sea using wind turbines, and TransHyDE develops, evaluates and demonstrates hydrogen transport technologies, because without a suitable transport infrastructure the hydrogen economy cannot function. The implementation project CAMFIRE in TransHyDE is testing the potential of ammonia as a hydrogen transport option and research interfaces to bind hydrogen in ammonia for transport and subsequent re-extraction. Campfire tests demonstrators for the centralised and decentralised use of ammonia as well as logistics structures for ammonia import and distribution.