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Old 06-20-18, 05:25 PM
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MikeyMK
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Join Date: Jul 2014
Location: Milton Keynes, England
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Bikes: 2.6kw GT LTS e-tandem, 250w Voodoo, 250w solar recumbent trike, 3-speed shopper, Merlin ol/skl mtb, 80cc Ellswick

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My 24v solar trike has 2x 18v panels at a metre by half metre each, they need direct sunlight to put out 100w at 36v, and plummet at the very threat of a moment's shade. With the charge regulator they were about £250. Im thinking you're gonna need double that capacity, still only running 200w max, if you hope to get, say, a 36v 13ah e-bike charged in an afternoon. Like a 4ft x 7ft area, and 700 dollars worth. And then 36v won't be enough, so you'd need slightly higher output panels to boot.
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