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The Electric Weather Normalization Adjustment (eWNA) is a way of leveling the effect of abnormal weather on customer bills while also allowing the company to recover necessary operating costs. When extreme cold snaps in winter months or unbearable heat waves in summer months cause your electricity use to rise more than normal, the eWNA ensures that you are charged for the energy you use at a rate adjusted for normal temperatures. In these situations, your bill will be lower than it would have been for the extreme weather.
Conversely, if unusually mild winters or unseasonably cooler summers cause your electricity use to decline more than normal, the eWNA will result in a higher electric bill than it would have been for the milder weather. Bottom line, the eWNA adjusts your bill to reflect your temperature-related electric costs (excluding fuel costs) for normal, not abnormal, weather.
"Normal" weather is based on the average temperature over the past 15 years for each billing period. SCE&G compares the actual temperatures to the 15-year average for each billing period.
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