Keep your own record
Bring in the export, store the history, and compare periods without starting from scratch every time a new file arrives.
For homeowners trying to make sense of the meter story.
When the overnight load feels wrong, you need something more useful than a bill total and a guess.
See whether the overnight pattern really changed
Look at the baseline, the flagged nights, and the months where total use moved enough to deserve a second look.
Bring something concrete into the next call
The point is not to flood the utility with charts. The point is to carry a clean comparison into the next conversation.
Start with one account and your latest export.
The setup is meant to be practical, not technical.