I am thinking about a AC and DC coupled system.
- a 5kVa fronius inverter on ACout 1 (with 6 kwc PV)
- a 5kVa multiplus 2
- 9.6 kWh LFP pylontech batteries (4x us2000c)
- a mppt charge controler (with 3 kWc PV - dc coupled)
So my question is:
In cas of grid failure, is my battery size(9,6) big enough to deal with the 6 kWc PV coming from the 5 kVa Fronius Grid inverter combined with the 3kWc DC-coupled PV array? (Am thinking about the 1:1 rule)
Thanks a lot in advance