After their wide success in the field of road vehicles, hybrid propulsion technologies are gaining more and more interest for their application also in the marine sector. This interest is mainly justified by the need of reducing pollutant emissions, as required by new strictly standards and legislations for marine transport systems. This paper aims to identify the main hybrid propulsion architectures, also obtained through retrofit operations, to be considered for leisure boats, compared in terms of efficiency and on-board space/weight requirements. On the basis of the above architectures specific energy management strategies are evaluated, reporting their main advantages and disadvantages. The evaluations reported in this paper represents a useful decision support tool, to help ship producers in the design and energy management of an efficient and sustainable maritime mobility.
Keywords hybrid ship; marine propulsion architecture; marine energy generation systems