Our power company does this too.

I sat down and calculated it costs them roughly a million dollars per year in postage to print and send those out.

I emailed the managers insisting they just put it online and use the million dollars to fund low income people from getting their power turned off and avoid the $50 fee to reinstate power.

All they would offer to do is take me off the mailing list.

If they insist on snail mailing stuff, they should only mail the worst offenders and radically reduce the cost. I use less than 200kwh per month in the winter and I still get those things.

The super stupid thing about those graphs is they include landlords with vacant apartments and houses that keep the power on for maintenance and easier new tennant move in (they just read the meter and change owner on the bill).