We have 3 Phase Multiplus II 5000 with 8 Pylontech US3000C and CerboGX in ESS Configuration. 16KWp Solar array DC coupled with two MPPTs.
Starting autumn our solar yield is way less as in summer.
So following starts to happen when the house constantly uses 1000W+ but Solar only Supply 200W.
- Battery fall to minSOC and Inverts stop to supply Energy (currently 40%)
- House run of the Grid and solar is loading the battery to minSOC + 3% (43%)
- ESS Start again, drain the battery very quick back to minSOC
- … repeat
So during the day, we have 10 to 15 times the cycle “Load to 3% - drain very quick back to minSOC”. This can’t be good for the battery.
Any setting I can make, so that the System just send the solar 200W to the house without this “Load / Drain” cycling?