You may have stopped by one of the several booths at the Pacific Sailing and Power Boat Show this last week. The matching of a hybrid electric to a diesel absolutely requires serious engineering as you must match known engineering rpm, power, and speeds of the diesel and program the electric to support the diesel without placing a negative power draw on it while allowing the electric to push the boat with some cruising range.
I know the Beta platform in the past has had a factory parallel hybrid option. That is the absolute best solution. Electric Yacht makes a 48v cruising bolt on, after the transmission, option. I understand that Esco has a hybrid system that is mounted prior to the transmission but know nothing about them or if they are appropriate for a 35hp Beta.
I ran a parallel hybrid system for several years and Electric Yacht has at least one parrallel hybrid Westsail 32 conversion. If it were my boat and I were spending the time and money on a Beta, diesel I would focus on the beta hybrid as the best way to go. You will be able to push the boat at modest 4+kts with a 6 to 8kW motor unit and I would think it would be best a 48v. Little regeneration because of the hull displacement, speed and the propeller protected by the full keel. The ability to improve speed, sail management, and course management would make you the envy of the Westsail fleet.
Mike
Electric Yachts of Southern California
Posted by: "Dan Hennis" <dhennis@centurytel.net>
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