Just wondering if you have found a way around this issue.
I have a Goodwe ET 10kW hybrid inverter. Firmware was updated a few months ago. When running in 'general' mode the curves on the pvsolarportal look normal and suggest that the solar panels are charging the batteries and then discharging overnight as configured. Except that our municipal power consumption remains way above what I estimate our usage should be. After 18m of monitoring the system I have a good idea of our usage and its impossible to explain our current municipal consumption of 30 kWh per day. When I switch the inverter to 'forced off grid' mode our daily municipal consumption drops to around 10kWh per day, which is much more inline with my expectations. I suspect that the Goodwe is drawing power from Eskom when its connected to the grid even when the batteries are fully charged and the sun is shining. Its much more than a trickle too as reflected in the usage drop when disconnected from the grid. I suspect that the Goodwe is in fact charging our batteries and meeting household demand from Eskom rather than from the PV panels and the batteries. As already mentioned, the pvsolarportal charts look completely normal and don't indicate that anything is wrong.
I can't run the inverter in 'forced off grid' mode all the time as several appliances trip the inverter when in this mode. It seems like the batteries can't supply the start up current required and a little extra help is required from Eskom.
Short of replacing the Goodwe with a better brand, does anyone have any suggestions?
