Hello. I'm going to be installing 800 watts worth of panels soon with the plan of upgrading to 1,600 watts later. The panels will be 4x 210 watt Kyocera 24V. I've already purchased a Xantrex XW charge controller, and now need to figure out what I'll need for wiring. I'm not sure if getting one large wire or two smaller wires would be better/more cost effective. Unfortunately the issue is the panels need to be approximately 210 feet away from the charge controller to be in an optimal place for gathering light. So my question is, what is the most efficient/inexpensive way to do this wiring, would it be best to have 2 series of 48v going to the charge controller? Would size #2 be enough?
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