What is a kilowatt-hour / megawatt-hour of electricity?
A kilowatt-hour is the unit by which residential and most business customers are billed for their monthly electric use. It represents the use of one kilowatt of electricity or 1,000 watts for one hour. For example, a 1,000-watt appliance, used for one hour, would use one kilowatt-hour of electricity. Similarly, a 100-watt light bulb, burning for 10 hours, also would use one kilowatt-hour of electricity. A megawatt hour represents the use of 1 million watts, or 1,000 kilowatts, of electricity for one hour. This term is used most often for large-scale industrial facilities, large population centers and in buying and selling electricity on the wholesale market.
