Charging EV with excess solar

[GIGLWAT]

I am using a MN15-12k-AIO inverter and Midnite batts. Does anyone know a way to instruct my Tesla EV charger to automatically ramp up or down the power to use excess solar instead of selling to the grid but not eat into my battery SOC? For reference, with a Tesla system I think it's called "drive on sunshine".
Thanks for the info.