it just takes your calculated whole house consumption, and subtracts the sum of individual devices, and what’s left is the remainder is displayed.
If you have negative numbers, you have a sensor that is reporting a higher value than it actually is consuming.
Total - (PartA + PartB + PartC) = Value. If Value is negative, PartA, PartB, or PartC is reporting higher than it should. Or Total is reporting less than it should.
These are things that HA won’t know about, this is something you the user will have to track down.
EDIT: This is assuming you don’t have solar panels. If you have solar panels, it will a sum of your Electricity Grid and Solar Panels minus what you send back to grid.
Ok, that seems clear. However, I get all these numbers from my solaredge and they should add up to ±zero. Seems there is need for more contemplation.
P.S. Found it! I had to add the solar production to the individual devices. Honestly, this is sort of a task you would get some doctor’s degree from (well, almost).-
I have been having great results with the energy dashboard for almost a year. And I enabled individual devices right away.
Today, I just noticed some “negative untracked consumption”. I was initially thinking “this is a bug” but then I remembered the even buggier thing that I just enabled… I do not have CT clamps on my 240V split phase dryer or my 240V split phase heat pump, so I am using the Sense integration. Sense uses “machine learning” to figure out if I am using either of these devices and it reporting out the numbers its finding in the Sense platform into HA, but the energy values Appear to come in quite chunky, and can happen out of sync with the hours tracked by HA. This results in too much consumption in one hour compared with the data from my electrical meter. On the day the data is good, but bad energy accumulation populating into the wrong hour appears to be the culprit here.
