I think this is where electric propulsion
is really going to take off. It provides the option of configurations that are extremely difficult if not impossible with mechanical propulsion
Hopefully these kinds of concepts will get more people interested and more consumer money
filtered into development so that it can work
its way up to bigger boats that need more power for longer run time. Battery
density is still the biggest hurdle, and EV manufacturers are really pushing on that front.
Here's another video