I have 3 phase grid. Curently I am running Multiplus 48/3000 with 4 kW solar and 15kWh battery. ESS assistance. Mainly critical load is powered.
I need more solar generation to power 3 phase heat pump. No plan to add more batteries , it is enough to be partly offgrid for 2 days and grid feed-in and storing is much cheaper than extra batteries.
How shall I expand?
Option 1. Adding 2 more Multiplus with more solar controlers and extra solar panels (total inverter power - 3×2.4 kW)
Option 2. Install 3 phase 10kW Fronius Symo PV inverter with extra solar and use AC coupling on Victron grid-in. (Tital inverter power - 10kW+2,4kW)
I am tent to go for option 2, but not sure if this is even feasible?
Can not find on Victron page.