Morscuba, after speaking with three different people including John from Palmer Energy Systems (Super knowledgeable and friendly guy by the way) I can't find out why the 10 gauge feed wire would result in anything more than a 3~5% loss over the welding wire that you say your using. What I got from Schneider electric Solar systems (sister company to Xantrex) the 10 gauge will support 30 Amps of DC voltage @ 95% efficiency vs. 6 gauge at 98% the 4 gauge was not on Schneider's list but I cannot imagine anything more than the last 2 % that's missing from the numbers if my math is right?
If this is reference then the problem of say a cloudy day could amount to 10 to 20 times (50%+) the issue of that of wire gauge so I was wondering if I am missing another reason that I should not use the 10 gauge wire other then this loss?
Thanks for your time and knowledge with this!
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Originally Posted by morscuba
The 10 gauge is to light for what you want to do. I wouldnt try to feed it through with the old wire. As I said before the easiest way is to go through the roof to the utility room where you would probably want to put your solar controller then though the floor to the basement to the inverter...
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