I am considering have a Multiplus setup with my existing 5kw inverter on the ac out leg of the inverter. I understand that I will need one of the 5000va series at that point.
However, in the future I also want to add more panels (7kw) using the MPPT DC-DC modules charging the batteries directly. If it is sunny and both sets of panels are producing max power, do I then need to have 12000VA?
Also, the following post https://www.victronenergy.com/live/ac_coupling:start mentions that for 1.5kw of panel you require 100 amps at 48V which would imply the ability to take 4.8kw. Does that mean 3kw requires 200? ?