Just ran into an interesting situation with Duke Energy in Washington. The meter nameplate shows 600:5 but the billing system has 100:5. The TOU peak window on the bill doesn't match the current tariff definition.
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How many clients can one auditor handle?
Pro tip: ask for the billing determinant detail, not just the bill summary. The devil's in the details with Dominion Energy.
I disagree with the approach of going straight to the PUC. Try the utility's escalation process first — it's faster.