How is the Weather Normalization Adjustment (WNA) on my bill calculated?
A WNA factor adjusts your delivery charge during the winter months for fluctuations in normal weather. The factor is based on customer’s weather sensitive portion of their bill, defined during the 2009-2010 heating season as usage greater than 10.2 ccf (hundred cubic feet). CCF of natural gas used and weather conditions (heating degree-days) during each bill period, are used to calculate the amount of your WNA bill credit or surcharge. The actual heating degree-days in the bill period are compared to the normal heating degree-days for the period to determine if the weather is colder or warmer than normal. Normal weather for the 2009 – 2010 heating season is an average of temperatures in our service area over a 30-year period from October 1979 through May 2009. Heating degree-days are calculated by subtracting the average temperature for the day from 65 degrees F. Sixty-five degrees is considered the base temperature at which most homes and buildings would be comfortable. Heating degree
Related Questions
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- With the monthly gas cost adjustment, when will natural gas prices change?
- With the monthly gas cost adjustment, when will natural gas prices change?
- How is the Weather Normalization Adjustment (WNA) on my bill calculated?
- What are the benefits for customers?
- What are the benefits for customers?
