Hi Craig,
Based on the inputs on the Battery Dispatch page, the battery is allowed to discharge to the grid in Period 3 (Jan-May, 7am-9am and 6pm-7pm; Sep-Dec, 6pm-7pm) and Period 6 (Jun-Aug, 6am-8am, 5pm-6pm).
This is a Southern latitude.
On January 1 and 2, Electricity to grid from battery is from 7am-9am and 6pm-7pm. During these periods, the system meets some of the load, and battery power is available for the grid:
On September 14 and 15, Electricity to grid from battery is from 6pm to 7pm:
On August 10 and 11, Electricity to grid from battery is zero. Power from the PV system is not available to meet the load, so the battery is delivering power to the load instead of to the grid.
Best regards,
Paul.