I put together a very small MPP HV/LV2424 2400 Watt inverter, on 1300 watts of panels, which powers most 120v devices in house all day/night (fans/refrig/lights/computers) and often found my 4.3kwh lithiums filling up with my average 500 watt home load on sunny days.
This simple script turns on/off a smart plug to slow charge vehicle, ONLY when battery near full and/or big wattage surplus (gets MQTT messages from MPP/Voltronic inverter):
works well, car charger set at ~720 watts until I add more panels
(see blue line peaks below, only a few miles of range per hour when on, but better then wasting excess sun)
(sorry for the clouds, but the script handles it!)
This simple script turns on/off a smart plug to slow charge vehicle, ONLY when battery near full and/or big wattage surplus (gets MQTT messages from MPP/Voltronic inverter):
works well, car charger set at ~720 watts until I add more panels
(see blue line peaks below, only a few miles of range per hour when on, but better then wasting excess sun)
(sorry for the clouds, but the script handles it!)