I have a FlexBoss21 + GridBoss, and my EV charger is connected to a smart port.
My EV can draw 48A (about 12.5kW) by itself, and of course the FlexBoss21 can only output 12kW on battery alone. I am guessing that if the grid went down when the EV is charging, the inverter would shut down and the house would lose power.
My goal is to shed the EV load in this situation. Either it should always be off when the grid is down, or it should be contingent on PV power and be shed fast enough that the inverter never shuts down.
It isn't clear that I can do this in the Smart Port settings. It seems like they always require a policy based on SOC. My goal here isn't to keep the batteries from draining (though obviously I also want to prevent that), but to keep the inverter from overloading. I don't want to add another inverter simply to accommodate off-grid EV charging - I can do that easily enough with a generator, or by reducing the EV charging rate and changing the smart port policy to allow it (but I also don't want to permanently reduce my charging rate just to cover the scenario where it is charging and I lose the grid).
Is there a way to accomplish this?
