The world of luxury yachting has witnessed a remarkable shift towards sustainability with the unveiling of Breakthrough, a 390-foot hydrogen-powered superyacht owned by Bill Gates. This stunning vessel, constructed by Feadship in collaboration with Royal Van Lent shipyard, represents a historic breakthrough in marine innovation. Powered by a groundbreaking hybrid propulsion system, including a 3.2-megawatt hydrogen fuel cell unit, Breakthrough is the first of its kind to fully integrate clean hydrogen propulsion technology into a vessel of such grandeur. Fueling operations for Breakthrough commenced with successful liquid hydrogen bunkering and refueling tests, demonstrating the viability of using hydrogen in large-scale marine applications. The yacht's dual-mode propulsion system combines a hydrogen fuel cell unit with diesel generators that can also run on renewable biofuel, ensuring both energy reliability and environmental sustainability. Breakthrough's propulsion system enables quiet, emission-free operation in ports and environmentally sensitive marine zones, with a range of up to 60 nautical miles. The vessel stores its hydrogen fuel in a specialized double-walled cryogenic tank capable of holding four tons of liquid hydrogen at an incredibly low temperature. Though not sufficient for transoceanic propulsion, the hydrogen system allows for silent anchorage or low-speed cruising for approximately a week. In terms of design, Breakthrough underwent a significant expansion to accommodate the intricate configuration required for the hydrogen propulsion system. The vessel's interior, designed by RWD Studio, embodies modern luxury with features such as bedrooms, a gym, offices, wellness facilities, and a refined coastal aesthetic. Breakthrough's launch signifies a new era in marine technology and sustainability. The vessel's partnership with Air Products for liquid hydrogen supply underscores the importance of collaboration between traditional energy companies and clean technology pioneers. With its symbolic value, Breakthrough serves as a beacon of progress in the journey towards cleaner transportation options, showcasing the potential of hydrogen in maritime transport and global trade routes.