PKM
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PKM got a reaction from AxlPivot in Solar string connection to Growatt Inverter 2 in series or 3 in seriesGood day my advise is to do 2 in series X3 strings reason being 3 in series its too closer to your MPPT Max I dont think its safe and total watts will be 1980W - 20% depends on your wiring you will probably get around 1500W on 6 panels, secondly on the load depends how big is your load but ones everything is connected you should be able to see if 6 panels are good for your load or not and you can add another string.
I forgot your last question on the best results in terms of 2 or 3 in series that's not really matters because your total watts will be the same weather 2/3 in series on what changes is VOC and AMP'S