I have two quattro 8kVA's in parallel set to export excess PV to grid. This is all DC-coupled PV.
This works well, but I'd like to confirm the limitations of the system.
I intend to expand the system.
1.) Is the combined export to grid capability of the quattro's 16 kW or 6.5kW x2 = 13 kW at present?
2.) Observing the 1:1 rule, if I add 16kW of PV inverter capability on the quattros' output is the new export capability now 1.) plus 16kW?
Thank you.
Hi @Phil_Gavin
1) yes that's about right.
2) yes if you use AC (inverter) and DC (charger - MPPT) coupled solar this is correct, make sure your battery is big enough to handle the combined currents.
Your quest is not clear
however on the current inverters being 2 x 8Kw then the max solar conected to the batteries or the AC outs is 16Kw
if you add another 16Kw of inverters so you now have 4 x 8Kw then the Max panel size is 32Kw
thats the 1-1 rule
So the maximum export to grid capability of a single Quattro (DC- coupled maximum plus AC - coupled maximum) 6.5kW + 8kW = 14.5kW
For two in parallel 29kW not 32kW.
