Jul 14, 2008· The typical American home uses about 7,200 kilowatt-hours of electricity each year [1]. Megawatts are used to measure the output of a power plant or the amount of electricity required by an entire city. One megawatt (MW) = 1,000 kilowatts = 1,000,000 watts. For example, a typical coal plant is about 600 MW in size.
