I too have has solar for many years and purchased a battery December 2022. I too have an app that shows records of battery generation, export, import, daily use and IMPORTANTLY, amount of power drawn down from the grid.Yet my next estimated bill is over $600 when last year for the same period it was $520.This is totally out of whack with my battery which says our household is functioning at 73.99% self-sufficiency. I have queried AGL estimates and received a message that an investigation will be ...