Had a breakthrough on a MLGW case this week. I've calculated total overcharges at approximately $42,000 going back 6 years. The TOU peak window on the bill doesn't match the current tariff definition.
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laundromat account with JEA — TOU window misapplication question
Be careful with Liberty Utilities's refund process — they sometimes try to limit the lookback period to 6 years.
Solid analysis. One thing I'd add is to verify the demand measured at 15-min intervals against the original service application.
I disagree with the approach of going straight to the PUC. Try the utility's escalation process first — it's faster.
Nice find. I've started using a Python script I wrote to cross-reference these calculations and it saves a ton of time.