Hi, I also have had that issue, the only thing I can surmise is that I have 2 circuits one that is general usage and another that is Off-peak - so the hot water heating is not using the solar panels or battery. If AGL discovers a similar reason I would be interested to know how to get all my appliances using the same circuit as the solar panels and battery. Or appliances are drawing too much power for the panels/battery to catchup, eg. a 4kWh hot water system maybe too much initial draw of power ...