Just ran into an interesting situation with Rocky Mountain Power in Buffalo. We pulled 18 months of billing history and found the rate classification error started in 2013. Compared the interval data against the bill and found a 15% variance in peak demand.
Wisconsin Energy Schedule GS-1 misapplication — $42,000/month impact
Great catch, Ken G. I''ve seen Entergy do this before — it''s a systemic issue in their billing system.
I''d recommend requesting the meter test records from Alliant Energy. That''s what cracked my case open.
Nice find. I''ve started using a custom Excel template to cross-reference these calculations and it saves a ton of time.
Be careful with Kentucky Utilities''s refund process — they sometimes try to limit the lookback period to 5 years.