Need a bit of advice please on the way forward with current install with the max amount of panels I can add.
Currently the system is about a year old. Kodak OG 5.48, 8x Canadian 365w KuMax panels (8s) , 4.8kwh Shoto Lith.
Specs on Inverter: Max PV 5KW, MPPT range 120-430 VDC, max VOC 500 VDC. Not 100% confirmed but max input current on one or two sites 18A
Panels spec on 1000 W/m2: Pmax 365W, Vmp 39.8V, Imp 9.18A, Voc 47.2v, Isc 9.75A
The system is running great, powering everything on essential side, stuff left on non-essential is geyser and oven (got a gas hob). Got a plan in mind for the geyser so thats why the question regarding more panels and helps a bit with overcast.
A friend of mine who installed the same time as me and his panels are out of the same batch as mine is planning to change his 6 panels he has to 450w+ panels.
At last I can get to the question. I'm thinking of taking over his panels and maybe running a 6p2s ( 4.38Kw 18.36A, VOC 283.2v) or 7p2s (5.1Kw, 18.36A, VOC 330.4v) configuration. but with the series config I'll be pushing the input current to 18.36.
Any input will be much appreciated. roof real-estate is not a problem can accommodate parallel strings and is pointing 357 degrees (N)