hi,
Set up: RS450, Multiplus II, Pylontech batteries.
I would like to turn a hot water heater on when there is excess PV.
When the batteries go into absorbtion mode the RS450 throttles PV power and I sometimes don't notice it and wonder why on a sunny day I am not producing much.
If the trigger is based on SoC then I could start heating water at say, 90% SoC or 95% but I don't really know when the RS throttles down and I want to let the batteries do the absorbtion anyway for the benefit of their health.
So, my idea is to use the "panel high voltage" relay program in the RS450 to switch the water heater as a high panel voltage would indicate MPPT "throttling" (please correct me if I am wrong) therefore definitely meaning excess PV is not able to be used.