Had a breakthrough on a Puget Sound Energy case this week. The demand ratchet is being applied at 100% instead of the tariff''s 70%. The meter nameplate shows 200:5 but the billing system has 200:5.
Appalachian Power power factor penalty error on church account — $8,700 overcharge
Pro tip: ask for the billing determinant detail, not just the bill summary. The devil''s in the details with Evergy.
Be careful with Rocky Mountain Power''s refund process — they sometimes try to limit the lookback period to 5 years.
This is exactly why I always pull 48+ months of history. The pattern wouldn''t show in a shorter window.
Solid analysis. One thing I''d add is to verify the demand measured at 15-min intervals against the original service application.