Stabilizing Billing for Customers

Weather Normalization Adjustment (WNA) is an annual adjustment designed to reduce volatility in billing due to the variability of temperatures during the heating season. Simply put, WNA stabilizes billing for the customer and allows Roanoke Gas Company to maintain operational quality and pipeline safety through long-term planning and system improvements.

Roanoke Gas Company and the State Corporation Commission compare the most recent 30 year average from the National Oceanic and Atmospheric Administration (NOAA) with the WNA period of the current year, which extends from April through March.

Using the NOAA data, it can be determined if a heating season has been average, colder than average, or warmer than average. No adjustments are necessary during years in which temperatures are on par with 30 year averages. Colder winters lead to customer credits. Conversely, unseasonably mild heating seasons permit a recovery charge to compensate for a small portion of the fixed costs that are incurred regardless of the volume of delivered gas.

Roanoke Gas Company customer support representatives would be happy to talk with you further regarding the WNA process and what it means to you. Please call them Monday through Friday, 8am – 5pm, at (540) 777-4427.