home energy costs

A close-up view of a residential utility bill, calculator, and glasses on a kitchen table during a bill audit.

Natural Gas Utility Weather Normalization Adjustment (WNA) Audit: How to Verify Your Bill Charges

August 18, 202613 min read

A Weather Normalization Adjustment (WNA) fee can artificially raise your gas bill during unusually mild winter months. Learn how utilities calculate these delivery surcharges, how to audit your line items for calculation errors, and how to dispute incorrect charges.