I just built my boat and it uses a 13hp Honda aircooled engine to drive a hydraulic pump to power
a hi-torque hydraulic motor which then drives the chain that drives the wheel.
See following for details, www.paddlewheelpontoon.com
May be cost prohibitive for a few years but eventually I would like convert to electric power and the Tesla
system intrigues me.
Appreciate any comments.
"Tesla system" is quite simple battery + power electronics module + AC electric motor. There are plenty of suppliers for those and also cheaper.
Tesla system is 250-300kW system, not 10kW. Not quite compatible. I think you might find similar power electric systems from some electric wheelchairs.