Propulsion

Shaft-Drive because you don’t want to haul out often.

https://www.youtube.com/watch?v=SKzu-WpWPrc

©Antares Catamarans

Electric Motors

Here are a few options:

Bellmarine

Torpedo

Combi [YouTube SV Lynx]

Why hybrid Diesel Electric?

More energy stored onboard then battery only. One Lieter Diesel is equivalent to 10 kWh. That is roughly 27 times more energy per kilo weight than with lithium batteries.

Electric motors only go reasonable to 25-50kw. With a diesel engine, more than 50kw are easily possible. And strong motors are a safety feature!