I currently use a smart plug to send solar excess energy to the electric backup element of a thermal solar powered water heater. I am planning on changing this to charging a UPS battery backup system instead since on sunny days with excess electrical solar power the thermal solar water heater does not need any help. Unfortunately the excess power feature in the Emporia app has a fixed 400 watt threshold so I am only capturing about half of the available excess energy. I hope we can get an update that allows user specified excess energy thresholds.
