FoxESS Community - Owners & Installers Forum

Hi,
I'm not sure why but the app is showing 0% self-sufficiency today when so far today the yield is 3.5kwh ? i have notice this quite a few times now since i had the solar install in November, anyone know why this keeps showing self-sufficiency at 0% ?

Self sufficiency is calculated as the difference between grid consumption and grid purchase, looking at that screenshot you consumed 18.1kwh, but you purchased 25.8kwh from the grid i.e. (18.1kwh-25.8kwh=-7.7kwh) that's a negative result so it will show 0%

If you had consumed 18.1kWh and only used 3kWh from the grid it would show self sufficiency as 15.1kWh i.e. 83%

If you click on the little (i) next to consumption it explains the calculation