Power Genius presents the average or the total power over an interval of time. The interval presented is configurable but is typically configured to synchronise with the dashboard every five minutes.
Over a five minute period you may both export and import power. An example of this would be if you were generating 3kW of power and using 2kW. This would result in a net export of 1kW. In the same five minute interval you turn the jug, or oven, on and use more than 3kW of power resulting in a net import of power.