As an installer, we go to a lot of non-technical people. In the VRM they see Grid buy and sell values that do not match to their DSMR smart meter, and get confused.
This is because they have a 3-phase grid connection, and Victron calculates import and export kWh NOT as the sum of all phases, but as separate. In ESS settings we have set that the Victron system should work on the total of all phases, and the logical thing would be that the VRM would then also display the sum of all phases in its kWh calculations.
The choice not to do this is a very strange one compared to other manufacturers that only show the netto kWh, which is logical because that is what you actually pay for.
Even more confusing for non-technical clients is the fact that the netto kW values ARE displayed in the VRM. So this shows 0W import all day but then when they scroll down they see >0kWh. To know how many kWh are actually bought is most important to most ESS users we imagine.
Hey Mark, thanks for the response. Could you elaborate on that?
Because when I look at the dbus-gcwacs code, I see that even for meters like the EM540 that don’t have per-phase reverse kWh values, the software just guesstimates them. So from VRM’s point of view, the meter type makes no difference; it always gets per-phase kWh data.
Even then, it’s not a strange idea that when we set ESS to “Total of all phases”, the VRM also displays the bought and sold kWh as the totals of all phases, right?
As we are using the ET340, this must be it. Is the ET340 the only meter that does this? Can this be changed in software so the ET340 handles like the rest of the grid meters?
The feature request still stands for the ET340 meter
Indeed, as far as I know (but I am just an enthusiastic DIY’er), ET 340 does it in this way. This cannot be configured. Only for the VM-3P75CT I seem to remember that it can be configured.
