‘Less volatile’ electric bills saved consumers $25 a month during heat wave - Business - TheState.com

Kristy Eppley Rupon

Here is how it works: When temperatures vary greatly from 15-year averages, SCE&G adjusts the cost of a kilowatt hour. That adjustment means electricity will cost less during extremely hot summers and cold winters, and will cost more when summers are cooler than normal and winters are milder.
Customers’ bills still will be higher than normal during extreme weather but not as high as they would have been without the adjustment. And bills will still be lower in milder weather, just not as low as they would have been without the adjustment.