Since a few month I have a running ESS with MPII GX, a SMA Solar Inverter and a Elgris Smart Meter as Grid Meter (in EM24 compatible mode):
If I now compare the history values from VRM portal to my internally calculated values bases on grid meter and solar inverter values, all values beside the consumption looking fine:
Seems, that the VRM Portal has a special way to calculate the Consumption or my system is not configured correctly. I calculate the Consumption in that way:
Consumption = From Grid + (Solar - To Grid)
Could anybody explain me, what's the difference here? Thanks in advance!
