Bob, thank you for the updates. FYI, PV panels will still charge at roughly 60% even in heave overcast skies. They do not harvest the visible light, or at least most of it. In my home in Idaho, we could plan on a 60% charge for a given time in overcast, and 100% for a clear day, unless a bird crapped on one. Then we got... crap(0% due to blocked out cells.) While working for the State Energy Division, we discovered that there was some difference in outputs of manufacturers, noticed mostly in cloudy conditions. Cheers,
Dan
Sent: Sunday, February 14, 2016 7:45 PM
Subject: [Electric Boats] Re: Solar Array Recharging Battery Bank to 100%
Another mini observation...
I was on my boat today after running its 10 KwH battery bank down to ~90% yesterday. The sky was sunny until ~1400 local time and partly cloudy thereafter. When I left the boat (at 1900 local), the battery bank was at 99%. I'm at 30 degrees North latitude and have a 580 watt (peak) solar array.
Not rocket science but very encouraging to observe first-hand.
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Posted by: "Dan Hennis" <dhennis@centurytel.net>
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