I have a two week old Powerwall 2 running in time based control. The electric rates are all entered correctly with clearly defined peak & off-peak rates. However, when its peak times the battery is sitting in standby allowing power draw from the grid. The battery is charging fine overnight during off-peak and charging with excess solar in the day. Then early morning and evenings when I want the battery to discharge its allowing too much draw from the grid. The battery is providing some power but most seems to come from the grid. The total house load is around 2-3 kw so its not like the battery is maxing out. Any ideas?