As a rule of thumb, it takes about 1kW per 1000lbs to drive sailboat to hull speed.
If you were going to install a diesel engine, would you put in a 20 hp or a 35-40hp. Think of what the next owner would want to have in the boat. Over 400 installations up to 50000lbs and very few of them were under powered.
Have one of the system providers do a propulsion model for the boat.
Not knowing your boat, I would guess about 15000-18000lbs. if you go small with a10kW motor, you can push the boat at cruising speed but give up the ability to perform at hull speed or respond fully in an emergency
48v is safer than higher voltages
Electric Yacht has systems of 10, 20, and 30kW running 48v
Www.electricyacht.com
Mike gunning from electric yacht Pacific
Sent from my Sprint Samsung Galaxy Note5.
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Posted by: Mike Gunning <mike@electricyachtssocal.com>
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