the electric company charges by the kilowatt ... a kilowatt is 1000 watts, thats why after you reach your monthly total wattage, you need to divide it by 1000 (or multiply by .001 to find out how many kilowatts you will be charged (about 11cents per kilowatt here in northern CA ... (you would have learned this in school, had you attended, and stayed awake) ... :smokin: