When my house was built 1.5 years ago, I had a critical load panel installed and this had a Generac associated with it for when there is a loss of power. The folks that installed this also installed a efegy Elite energy monitor. This is just connected to the mains that feed into the sub panel.
Recently, I picked up a Sense unit and connected this to the Mains that go into my main panel that also feeds my sub panel. Logic would say that the feed into the main panel should read higher than the sub panel. Also, when I look at Sense and my meter outaide, they are very close in readings.
You guessed it, the efegy unit consistently reads higher then the total usage of Sense.
Just seemed like something odd is happening.