Hello everyone,
I’ve just changed from one multiplus II 48/5000VA (one phase) and PV in AC in to a couple of multiplus II 48/5000VA in parallel setup with the PV in AC out. Also, I’ve a Carlo Gavazzi for the PV inverters (two Huawei 5KTL) and another Carlo Gavazzi for the grid consumption. ESS is properly configured in both multiplus with the PV in AC out.
The problem is that the system is not following the grid setpoint (set to 0W) when the battery is being charged. When it is charging the battery by consuming PV production there is a residual consumption from the grid, around 100W. When it is not charging (for example, when there is not enough PV production or it is dark) the grid setpoint is followed and there is no consumption from the grid. In the ESS configuration “grid metering” (inside Cerbo GX ESS section) I have tried both external meter (carlo gavazzi) and inverter, resulting the same behavior.
Do you guys know what could be happening here? I think this is a software-related issue, but I don’t know what else look or change.
Thank you in advance