I've done a fair amount of research on it (including on my own boat). My conclusions are here:
http://sites.google.com/site/electricboating/Home/range-optimization/regeneration
In summary - if you want to contribute to science, try regen.
I believe it *can* become practical - but we're not there yet.
-Keith
--- In electricboats@yahoogroups.com, "Cornelis" <cvr@...> wrote:
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> > Lots of people want regen, but I have yet to hear of anyone that has reliably generated more than 100w at 5kts. It is my opinion that it takes at least 7 to 8 knots of boat speed to generate any significant amount of electricity back into a battery bank. Most people are getting better results from PV solar panels, again adding cost and complexity.
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> I'm installing an Electric Yacht 100ib in my 30ft sloop. She's a long keel and displaces 4 tons and certainly not quick - happy to do 5knots or so in good wind. I would be interested to learn the group's experiences of regeneration, for a similar setup to mine or otherwise.
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