2 AWG on wiring.
My system comprises of:
Solar panel RNG-160DB-H
I know we should install our solar panel as close to the controller as possible, in my case I have a distance of 13 feet (~4 meters) between the junction and the controller. I have plenty of 2 AWG cable laying on my garage. Would it be any good to use it as illustrated? Or should I just use 10 AWG?
I would still have to use the 10 AWG from the junction to the panels and to connect the controller.