In a recent study by the Mærsk Mc-Kinney Møller Center for Zero Carbon Shipping, the focus was on evaluating the potential of fuel cells for deep-sea shipping. The research, published in May, highlighted that while fuel cells are not expected to immediately replace combustion engines, they have a promising future. The study specifically looked at the feasibility of using fuel cells in vessels like an 82,000dwt bulk carrier, an LR2 tanker, and a 15,000 TEU container ship. Different fuel cell configurations were considered, including liquid hydrogen for a PEM fuel cell, methanol fuel reformed for a PEM fuel cell, and methane fuel for an SOFC. The report emphasized that the high initial costs and the need for significant design adjustments in ships’ engine rooms and crew operating procedures currently limit the competitiveness of fuel cells against traditional generators. This suggests that a transition towards fuel cells will likely be gradual and that multiple technologies may coexist in the shipping industry for some time. The comparison in the report between fuel cell options and generators running on LSFO, bio-methanol, or bio-methane aimed to provide insights into the economic and environmental viability of adopting fuel cells. While challenges exist, the study remains optimistic about the future integration of fuel cells in deep-sea vessels, highlighting the ongoing need for innovation and cost reduction to enhance the competitiveness of fuel cell technologies. Overall, the study underscores the importance of continued research and development to overcome barriers and accelerate the adoption of fuel cells in the maritime sector. It envisions a future where fuel cells play a significant role in decarbonizing the shipping industry, albeit alongside other energy sources, as the sector moves towards greater sustainability and reduced environmental impact.