The drop-down list for categorizing the measurement type looks a bit confusing to me:
Dishwasher
Washing Machine
Refrigerator
Main Home Theater <—
Other
Was Main Home Theater supposed to be:
Home Theater
Main
?
It would be much more useful if the drop-down list to get the measurement type looked like this
Mains
Sub Panel
Circuit
Dishwasher
Washing Machine
Dryer
Refrigerator
Home Theater
Other
This way, the source of the measurement can prevent double-counting for various graphs.