Thank you for your quick reply and helpful information.
No solar just a typical home drawing power off the grid.
How much I use per day is a bit difficult to get too. It certainly depends upon the weather and here lately in my region the weather has been a bit wonky, mid teens to low single digits (Celsius). I do have a complete record of our power usage going back 8 years. I also do a comparison based upon degree day during that same period. I have weather data going back to 1942 and use it as a prediction tool for estimating purposes.
Just as an aside maybe the Sense folks can incorporate degree day analysis into their modelling as it will be a good basis to determine house energy efficiency.
I have confirmed that the Sense sensor clamps are clamped on the two mains inside the electrical panel.
Over the 24 hour period the Sense data is missing approximately 1 minute of data, where the graph drops to zero.The period I have started my observations is from Nov. 4 at 9AM local time to Nov 5 9AM local time.
The utility meter is digital mounted on the outside of the house. I have been taking readings at the top of the hour and then compare them to the Sense total energy usage for the same hour. For example these are the comparisons this past six hours (ending at 2PM local time, less than an hour ago):
Utility reading. Sense reading
Utility company reading 31 as compared to Sense 26.8. That’s 4.2kWh over the six hour period.
The meter is a Centron with a digital display manufactured by Itron USA. It is a 0.5-200A 240V 1PH TYPE C1SR 3 Fils wire. It also says on the meter
Thanks again for your suggestions, I’m at a loss as to the discrepancy.