Offshore Supply Vessel Coastal Liberty, based in Cuxhaven, has made a remarkable shift towards sustainability by adopting green hydrogen as its primary energy source. The vessel, aimed at minimizing environmental impact and advancing the energy transition, recently received class certification for its hydrogen system from DNV. The innovative containerized system, engineered by eCap Marine over two years, integrates fuel cells, a battery system, and safety equipment, enabling emission-free operations. The green hydrogen used is locally produced using offshore wind power, with eCap Marine ensuring safe transport and handling of hydrogen tanks between the vessel and the electrolyser plant. This transition not only benefits the environment but also enhances operational efficiency for the vessel's crew, providing a smoother sailing experience. CEO Jochen Kaufholt envisions the Coastal Liberty as a pioneering vessel in Europe's maritime energy transition. The positive impact of this investment extends beyond environmental concerns, with eCap Marine anticipating long-term advantages for customers and society at large.