France's ArianeGroup has launched the NAVHYS project to explore the use of liquid hydrogen as an energy carrier for maritime transport, focusing initially on offshore wind service vessels (SOVs). Liquid hydrogen offers advantages over gaseous hydrogen for long-distance shipping due to its higher energy density, but requires advanced storage solutions capable of maintaining extremely low temperatures. The project, co-funded by the EU, aims to develop a concept for below-deck LH2 storage and fuel systems to decarbonize maintenance operations for wind energy providers. Integrated with the EU Clean Hydrogen Partnership, NAVHYS brings together expertise from various industries to drive shipping decarbonization. Partners like North Star, Vard Design, and ENGIE are crucial in defining operations scenarios, designing the SOV ship, and developing supply chains and bunkering stations for hydrogen. The project also involves safety analysis, technology assessment, and life cycle evaluation by organizations like INERIS, RISE, Bureau Veritas, and LEITAT. Over the next 36 months, NAVHYS will work towards testing and implementing the liquid hydrogen fuel system, leveraging experience from the space sector to advance zero-emission mobility applications.