FoxESS Community - Owners & Installers Forum

Hi I have 10 panels and 1 battery, During daytime and night time I have 0.01/ 0.02 coming from the grid even though i am producing from the panels and battery has more than 50% charge ? I know this isn't a great deal but it will mount up ££££ over a year, it would be nice to see I'm 100% self sufficient rather than just 97 % or 99% sufficient, does anyone else have this
I have attached a couple of pics
Cheers Colin

It’s quite normal in Self Use workmode to see a very small grid demand, when it is sunny the export should zero the grid import but overnight there will always be a small drain (it’s a grid tied inverter and has to maintain a bias point).

If you have a KH, H3 or H1 G2 inverter there is an installer option called Grid Compensation, this allows a bias adjustment to made so the inverter uses the battery to maintain a negative bias to the grid (i.e. it is always pushing slightly) - the upside is that it will reduce the amount of grid import, the downside it will flatten the batteries that tiny bit quicker.

As I said it is an installer option on the latest firmware and they can set a value (typically -25 to -50 watts)

Thanks for that reply, it does give me a bit more of an understanding