March 2, 201610 yr I am planning an installation with 12 panels (3KWatt) in a 4*3 arrangement with a Vmp of 92.1 volts and an Imp of 32.6 amps. Using 16mm2 cable I determine that on a 50M length my voltage drop will be 3.3429 OR 3.6297% and the power dissipation will be 108.9 Watts. Based on my research I feel confident that the voltage drop to the MPPT controller is acceptable but I have no idea on whether the 108 watts is OK or not. Can anyone give me some feedback on how serious or not 108 watts of dissipated power is.
March 4, 201610 yr 108w may be a lot, or not much at all. it all depends on how much power you need If you need less than 2.9Kw, continuously, it shouldn't be a problem. But if you need the full 3KW, constantly, it will.
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