Billing period ends on the ninth. that is the day they read the meter. the problem is that the time they read the meter is unpredictable. what would be nice, would be to be able to add the the difference between Sense and the reading of the previous month to the current month. I have a 13 kWh difference between Sense and the power company. a difference of 5.8 kWh for the last day of the period.