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Ballard is one of the first companies to offer PEM fuel cell products and electric drives for mass markets. Their site explains how the systems work and outlines the expected improvements in performance expected over the next five years.
[Ballard Power Systems, Inc., Burnaby, BC, Canada]
A marine electric propulsion motor whose batteries can be recharged by solar, wind, propeller regeneration, shorepower, or generator. Providing up to 25 HP for sailboats up to 40 feet.
[Asmo Marine, Copenhagen, Denmark]
Originally developed for the Mars rover, the Electric Wheel propulsion drive replaces the diesel engine. Requires lots of batteries and either a genset or frequent shorepower infusions, but produces quiet high-torque power, reduces overall weight, and can regenerate electricity when sailing. Installations up to 20,000+ pounds displacement, primarily catamarans.
[Solomon Technologies, Inc., Tarpon Springs, FL, USA]
Electric outboard motors, batteries, chargers and accessories, including remote steering. Operates on any of four voltages.
[Outboard Electric Co., Bridgeport, CT, USA]
An electric motor which re-charges batteries via the propeller, also solar or genset. Designed for boats up to 3 tons., or 5 tons with two units in tandem. Folding prop, electronic gearbox, Depending on boat size, two 75 Ah batteries will provide 2.5 hours running (10 minutes at flank).
[OZ Marine R&D AB, Göteborg, Sweden]
By using the electricity from a diesel generator to drive an electric motor connected to the drive shaft yachts with generators can improve noise by 50%, fuel economy by 40%, maintenance by 40%, engine room size by 35%, weight by 5%, and more, claim the designers.
[Fast Electric Yacht Systems, Inc., Houston, TX, USA]
The combination of a Fisher Panda 4KW generator, an electric motor called the Electric Wheel, and lots of batteries can provide quiet propulsion equivalent to a diesel up to 40 hp.
[SailNet, 18 November 2002]
This discussion list on electric boats has almost 1,000 members and good traffic. It′s been operating since 1998, so there are lots of archives.
[Yahoo Groups, USA]
Extensive list with good search facility. Covers just about any cruising topic. Tree and branch format for threads.
[The Sailing Company, Middletown, RI, USA]
Unmoderated forum on sail and power cruising. Lots of good advice and other resources, but you have to do some searching.
[Usenet, USA][Electric propulsion] trades routine diesel maintenance for a level of vigilance toward the boat′s electrical system that′s probably new to most operators.
Tim Murphy
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