I have recently installed an ESS System (Victron Multiplus 48/5000/70) with one BYD 5kWh and Fronius PV Inverter connected on AC out (on-grid system).
ESS is on "Optimized (Without BatteryLife)". The connection between PV Inverter and Victron is wireless.
The system is working ok but I have some issues which for the moment are unsolved.
For example, the PV production is frequently stopped just to return in the next seconds.
As you can see from the graph, PV is having a strange behaviour when charging the batteries, the graph looks like a saw teeth when I was thinking to be like a smooth line. The PV throttles down to 0 frequently as you can see and I do not know the cause of this.
Any ideas?