I need help with syst build on rv
I have room for 8 200 watt panels and I thought about 2 panels each in parallel but that is a lot of amps and big wires . looks like 4 runs of #6 and 4 charge controllers with an extra for aux panels if i want. I’m wanting to use all victron eq 3000 watt inverter and 3 vatrer 600 amp hr batts Just looking for the most efficient way to design this syst with the least voltage drop in case of some shaded areas of the panels . Not to much worried about cost just not some stupid wiring that could have been avoided. I’m going to use all Victron eq If poss. Thanks for any input First time solar newb
Why run panels in parallel?
MPPT units work better with higher voltages, so wire panels in series. If your panels have 20V Voc (see module label) , then 2 strings of 4 with 2 off 100V 60A MPPT’s would do, or better, plan a 24V system (only 1 100V 60A mppt needed.). This would be more efficient and cheaper than a 12V system, particularly with a 3000VA inverter.
We used four 425W panels with a 75/15 for each, on our 24V system. Wired using 10 gauge. Design your whole system before you buy.