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Old 26-02-2016, 16:06   #61
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Re: which mppt controller

Originally Posted by CarlF View Post
Nigel Calder did a great test of solar panel shading in September 2012 Sail Magazine. I can't find it but my memory was that 5% shading would make a panel voltage too low to effectively charge batteries. Even a shadow from a backstay was a problem.

If anyone has a link to Calder's piece, I'd love to read it again.

Here's an unrelated video:

Is this the article you're looking for? Nigel and I did this at his place here in Maine...
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File Type: pdf NigelSolarSail1208.pdf (418.9 KB, 29 views)
Twice around was enough for me...
Now I just help others prep for ocean trips...
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