Add Solar Panels to charge battery bank for inverter
I have a 24v inverter, outback vfx3024 with 200Ah battery bank for now, used as backup when there is a power cut ( frequent in Bangladesh).
I am planning to add solar panels to charge batteries. I have a PWM controller at hand, EPsolar Viewstar VS5048N, spec attached.
I am thinking of buying the panels locally, 4x 150w, 36cell panels, they locally manufactured, spec below.
Peak power = 150 watt: A grade mono crystalline.
Maximum power current(Imp) =8.16 A
Maximum power voltage(Vmp) =18:38v
Short Circuit Current( Isc)=8.81A
I have at my disposal, 6mm2 pv cable to run from the roof of 3 story building to ground floor where the inverter and batteries are located.
I am thinking of 2 panels in series and then parallel, terminate in a combiner box, then to CC. I am worried about voltage drops on the long run from the panels to CC, about 35ft one way.
How best to wire the panels for best performance with what I have?
Do I need a breaker/fuse for each panel or each string?
How to find the best angle without someone changing it or sun tracker?
Any help will be appreciated.