The first step to wise use of electricity is to understand your energy use and habits.
Electric power is measured in watts, like gasoline is measured in gallons.
All electric appliances and light bulbs aresized, or rated, in watts. The term kilowatt is simply an easy way to say 1,000 watts. A kilowatt-hour, then is 1,000 watts of power used for one hour. One kilowatt-hour will run a 100 watt light bulb for 10 hours.