Having had our battery up and running for a few months I've noticed that the battery inverter seems to allow up to around 300w of power to be drawn from the grid before it starts to ramp up battery power to supply the house load. If the house is load is 200w it all comes from the grid. If the. house load is 500w, 300w comes from the grid and 200w from the battery.

If this grid draw is at peak rates, which it is through the day, it adds up to £100s a year! The grid draw is roughly the same on the inverters meter on the house incomer and on the smart meter display so I think the meter and the reading displayed on the inverter are correct.

Anyone come across this issue on a Solis inverter??

31 minutes ago, Dillsue said:

Anyone come across this issue on a Solis inverter?

I looked into this a few years back, there should be something about it posted up.

Pretty sure that in the inverter data sheet it states what the minimum load is, but I really can't fully remember now.

Can make running a few low wattage lights on an off grid system a bit tricky.