I have both my 500 & 800 watt PV arrays using 2mm cable. IIRC, each of those cables is about 120 feet long.
There are some losses, but since they are less than 1% of the total power, there isn't any profit in worrying about it.
Especially with the price of copper..
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My hobby is installing & trying to repair mini-splits
EPA 608 Type 1 Technician Certification ~ 5 lbs or less..
Last edited by Xringer; 10-18-12 at 07:52 AM..
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