Interesting, yes, but what is the idea here? On a single engine boat is the concept to replace the alternator with a generator or add additional brackets, belts and pulleys to the engine to drive both an alternator and a generator? What about the additional load on the engine from driving both while underway?
Say you add this generator to your boat, you would have 110v power while underway but when you anchor, you still need the inverter and/or a standalone generator. So, in most cases your can't cut the inverter or the genny out of the loop. What is the big advantage of an engine mounted generator?