 A big issue to be dealt with would be the storage of hydrogen on ships, given that there would be no opportunity to refill them when out at sea, although one can use wind power and solar panels to generate electricity from the ocean while they are far from the shores and produce onboard hydrogen.The need for a hydrogen infrastructure varies, where the Yacht "No.1" was fueled by a mobile hydrogen station, the prototype Haveblue Yacht "XV 1" was intended to have onboard hydrogen generation, the "Xperiance" and "Tuckerboot" have exchangeable high-pressure hydrogen tanks which can be refilled at a local hydrogen station, the canal boat "Ross Barlow" uses fixed onboard low-pressure solid-state metal hydride storage tanks and depends on a refilling station on the waterside, the Zemships "Alsterwasser" refills at a fixed waterside storage tank with 17,000 liters of hydrogen which is refuelled by a compressed hydrogen tube trailer.