In Fouesnant, Green Navy spearheads the 'Prometeo' project, unveiling a groundbreaking European catamaran powered by electro-hydrogen propulsion at NAVEXPO in Lorient. The company's Managing Director, Charles Cardi, emphasizes their commitment to building the first zero-emission ship and notes the support received from various partners. Green Navy's focus is on implementing electro-hydrogen systems for year-round maritime transport, targeting a wider audience while reducing carbon footprints. During NAVEXPO, Green Navy solidified its partnership with SECO Marine, aiming to create reliable and cost-effective solutions suitable for shipowners. SECO Marine's Managing Director, David Bartoletti, highlights hydrogen's potential in decarbonizing vessels like PROMETEO. The project progresses as the hulls move to the Brest shipyard for construction, with ongoing safety evaluations and engagements with stakeholders along French coastlines. Charles Cardi expresses optimism about the paradigm shift in maritime transport towards sustainability, citing the industry's readiness for innovative solutions. The article underscores the growing interest in hydrogen as a promising energy vector, especially in maritime applications. The positive sentiment towards hydrogen as a clean energy source and its role in revolutionizing maritime transportation is evident throughout Green Navy's endeavors.