PECO, our electric supplier in Pennsylvania, is doing something similar: periodically we get a form letter from them pointing out how very much more wasteful we are than our neighbors and giving helpful hints about conserving energy. It is an insult to the intelligence.
We got one of those at our residence when we lived in another state. It made me mad because it’s none of their since we paid for our usage and didn’t take too kindly to them trying to shame us.