PowerCell, a hydrogen electric solutions company in Gothenburg, Sweden, has signed an order for two 100 kW Marine Fuel Cell Systems for the Transship II sustainable vessel project with O.S. Energy. This initiative involves retrofitting the Prince Madog research vessel with a cutting-edge hydrogen-electric hybrid propulsion system, showcasing the potential for sustainable propulsion solutions in the maritime industry. The retrofit work is expected to be completed by early 2025, with a demonstration planned for March 2025. The project, supported by the UK Department for Transport, aims to reduce the vessel's emissions by up to 60%, aligning with global efforts to minimize the environmental impact of the shipping industry. PowerCell's CEO highlighted the benefits of their Marine Fuel Cell Systems over traditional diesel generator sets, including zero emissions, silent operation, and reliability, emphasizing the importance of greener and more efficient solutions in the industry. The partnership between PowerCell and O.S. Energy signifies a critical step towards innovation and environmental responsibility in the maritime sector. The article discusses the efficiency and environmental advantages of fuel cells, especially for smaller shortsea vessels, which represent a significant portion of carbon emissions in the maritime industry. The Transship II project aims to make the Prince Madog a model for sustainable marine research and operations by enabling low to zero-emission operation by 2025.