Can you use the General Flag in VE Config to run a relay to switch between ESS “All system loads” and “Only critical loads” so that you can use EV charging station to prevent it draining the batteries.
@nickdb @guystewart any thoughts?
The first step is to check if this option is selectable via the various integrations. I will need to look that up.
Did you find anything ?
Went through the registers and lists and couldn’t find a reference to this.
Ok, thanks for looking. Is there a way of proposing a new design of a system? I could draw an electrical diagram of my suggested modification.
Sure, just make a post into DIY, attach any diagrams.
I would like to be able to automatically switch the flag “ Self consumption from battery - all loads to only critical loads”
This could be done in a number of ways.
- By physically placing a current sensing relay on the positive wire inside the EVCS and using this to switch a general flag programmed in VE Config.
- Another way is through software where the system detects that an EV is being charged and automatically moves the switch to critical loads only so that the car is charged from the grid.