This is my live off grid system portal. It can be set to backup only by setting grid feedback to always pull 10W to prevent grid feedback. Sometimes L1 is positive and L2 is negative or the other way around. That is because the system is maintaining a balanced 10W load between L1 and L2. Sometimes you may see what feedback to the “grid” for a period of time. In that case I have connected to a dump load to take advantage of excess solar production. Typically, it is powering my fridge, well, main lighting, microwave, kitchen appliances, internet, TV, Security, etc.
I currently have the solar split into 4 panels connected to the Victron DC/DC charger (PV Charger) and 4 panels connected to one 4 port Hoymiles microinverter (PV Inverter) that is AC coupled to the output of the Victron System.
System Specs:
25kWh 48V SOK Server Rack Battery
3,375W Solar; 44deg tilt; South Facing
