This is a 11Million Dkk research project funded by EUDP. The project focuses at studying the feasibility of zero-emission propulsion technology for ferries and small-mid size ships using fuel cell and batteries, delivering an early solution prototype and introducing a control optimization of the (integrated) hybrid energy solution to reduce the operation cost and improve the reliability. The technology is going to be built via integration of battery and hydrogen fuel cells to generate power for the electric propulsion engines. Model-based design and analysis will be a key technology to carry out this project.