Surveys rank electric service providers by rates based on total electric bill amounts for 500, 1000, 1500 and 2000 KWH (kilowatt hours). Surveys are conducted biannually with winter surveys utilizing rates in effect for the month of January, and summer surveys utilizing rates in effect for the month of July. All electric providers in Georgia participate including the Electric Membership Corporations, the Municipal Electric Systems and the investor owned utility (Georgia Power Company).