Adapting and modifying existing solutions to implement new technologies brings neither efficiency nor true innovation. Electric or hydrogen fuel cell propulsion requires a paradigm shift in the design of certain types of boats, with a move towards solutions that break with the past, that are "disruptive". This is the philosophy that underpins the GerrisBoats concept, a water taxi designed to be truly innovative, both in reducing energy consumption and wave pollution in cities and on lakes, as well as in terms of being fully accessible.