SIOUX FALLS, S.D. (KELO) — Xcel Energy's customers in South Dakota are going to see an increase in their home electric bills. The state's Public Utilities Commission has approved an agreement which lets Xcel increase electric rates around 9.5%. According to South Dakota's Public Utilities Commissi on and Xcel Energy, a "typical" home using 750 kilowatt hours [...] ...read more read less