We have a 3-phase grid in our house. Recently we installed solarpanels with a Solaredge SE5K 3-phase inverter. Everything is working fine.
Now we are looking for a solution to add an ESS. We are considering to use 2 or 3pcs. of the Pylontech US5000 batteries in combination with a VE Multiplus 3000/48 charger/inverter.
To my opinion the system has to measure the current going to the grid or coming from the grid in all 3 phases. The sum of all 3 phases should define if the batteries can be charged or discharged.
Is this feasible?