I have just had this meter installed today and note that code 3 is the net usage and code 13 is the solar feed-in. However, how do you determine at what rate the net usage is eg Peak, Shoulder or Off-Peak.The reason that I ask is that it is noted that 3.9kWh was used between 10:30am and 11:30am which I believe is reheating the HWS but which should be off-peak ie between 10pm and 7am only.