The maritime industry is under pressure to meet decarbonization goals due to its significant emissions, including sulphur and nitrogen oxides. These emissions have harmful environmental and health impacts. To tackle these challenges, two main solutions are emerging: the use of alternative fuels (e.g., ammonia, methanol, hydrogen) and the development of efficient technologies like Solid Oxide Fuel Cells (SOFCs), which generate power without combustion. Hybrid propulsion systems, which combine fuel cells with internal combustion engines (ICEs), offer a potential solution for reducing emissions and improving energy efficiency. This study examines the integration of SOFC technology with an ICE in three configurations for the RoPax vessel Anna Mur, which operates with a steady, low-load profile.