Louisville manufacturing client had a meter that was running backwards for 3 months. LG&E didn't catch it and the client got credited for electricity they didn't generate. Took 6 months to sort out the mess!
Weirdest thing found during an audit?
Found a Rocky Mountain Power meter in Salt Lake that was connected to the wrong address for 2 years. Client was paying for their neighbor's usage. Neighbor was getting free electricity. Awkward conversation with both parties.
Memphis Light Gas & Water billed a restaurant for water usage at the gas meter rate. $2,400/month water bill for a small deli. Turns out a data entry clerk mixed up the service codes. Got 18 months refunded.
Tampa Electric had a demand meter that was stuck showing peak demand from a power outage test 3 years earlier. Client was paying demand charges for equipment that wasn't even running anymore. $15,000 refund.
Ohio client had two different account numbers for the same building with FirstEnergy. Paying two connection charges, two service fees, everything double. Been going on for 5 years before we caught it.
Duke Energy in Charlotte billed a hotel for street lighting that wasn't even on their property. Turns out the city changed the billing but never notified Duke. Hotel paid $400/month in street light fees for 4 years.
Georgia Power had a client classified as residential when they were clearly a commercial bakery. Took 8 months to get the rate class changed. Saved them about $800/month going forward plus 2 year refund.
Dominion Energy in Richmond was charging a church the discontinued "experimental rate" from 1987. Rate was supposed to end after 12 months but nobody ever switched them back. 30+ years of overcharges!