ePropulsion project aims to improve the feasibility of energy-efficient propulsion in the boats. The project seeks solutions to exploitation of advanced electronic propulsion and hybrid technology. The aim is to create system which pays attention to boat's technology and guides the user to optimize the available resources in relation to the trip. The project's participants are consisted of different sectors' doers. System testing and simulation will be made by co-operation between these participants in Tampere University of Technology's unit in Rauma.