This video shows an example of the typical solar meter, which would be installed by Energex on your property. Reading your solar meter is simple: if you watch the display, you see it alternate between positive and negative numbers. The positive number is the amount of electricity that you've imported from the grid this is what you see on a normal electricity meter without solar.
The negative number is the amount of electricity that you've exported from your solar system to the grid this is the amount of electricity your solar has generated above and beyond what your house needed to use at the time. In this case, the positive value is less than the negative value, so this property has exported more electricity than they've imported, leaving the property owner with refunds from the power company. In Queensland, the negative value is called a "Solar Bonus Scheme" or the "Feed-In Tariff".