I switched to TBC and trying to figure out what % split I should be using for backup vs time-based control. Also, how does the system work compared to Self-Powered?
When I switched to TBC, it looks like all the PV was sent straight to the battery and whatever the house needed, it pulls it from the grid but I would sometimes see it flip to where the PV was covering the house, sending some back to the grid and then the majority going to charging the battery. Does the system do this to keep the grid consumption at net 0 until the batteries are full and then it will export it all to the grid? What will happen when PV system is gone? it will always pull from the batteries or is it going to pull from the grid?