question

Hi,

I'd like to purchase a Multiplus II together with 2 smartsolar chargers. I have a PV array and a battery and a stable Grid connection.

I want to setup the system so that i consume all the energy i can and then either stop feeding back to the grid or feedback to the grid. I am allowed to do this here in Denmark since the multi just got approved here. I would also like to be able to power some things when in rare occasion there is a power outage.

1. So this means the Multi will feed power on AC IN when it measures there is consumption on the Energy Meter correct ? I mean the Multi gets usage data from the energy meter on 3 phases but itself it can only produce on the phase it's connected, the utility meter will even this out so +1kwh on L1 and -1kwh on L2 gives 0kwh usage.
2. When LOM is detected it will shutdown on AC IN and produce on AC OUT 1 where i have my loads that i want to keep running from battery, i presume these loads also run while LOM is not detected as i can see the AC IN and AC OUT 1 is connected while there is AC IN correct ?
3. What is this system called, as far as i can tell this is Grid Parallel with ESS ?
4. What happens to the loads on AC OUT 1 when i shut off the inverter for maintenance ? They shut off correct ?
5. Should the AC IN go into a RCCB that makes sure all power produced in the inverter is protected ? I do have a RCCB but now power is produced inside the system and the RCCB won't trip if something happens. Do you agree ?
6. If i have loads on AC OUT 1 i guess i also need a RCCB there too correct ?

I have spent much time reading and looking on diagrams and came down to this questions which i hope will answer my questions so i can finalize my diagram and get it reviewed. I have attached a drawing how i think the system should be wired. The part that i am most unsure about is the requirements for the RCBO and of-course the questions i have above.

/peter