Hi @Kalaharipro I am in a very similar situation than you (and also in the same area) but mine is slightly worse. Not only does my slave inverter continuously draw power from the grid, it spikes when my consumption increases. Today I was consuming 700w via the slave inverter when my geyser was running. PV Was at 4.3kw, load was 3.5kw, the Master inverter sent charge to the batteries of about 500w, but then my Slave inverter consumed 500W from the grid. Is there any way you can refer me to the expert that sorted out your issue ? I would desperately want to get in touch with him asap. I have requested to register as a user of the forum - waiting for approval.