A kilowatt-hour (kWh) is a unit of electrical energy equal to the energy delivered by the flow of one kilowatt (1,000 watts) of electrical power for one hour. For example, a 100-watt bulb burning for 10 hours will use one kilowatt-hour of energy.
A kilowatt-hour (kWh) is a unit of electrical energy equal to the energy delivered by the flow of one kilowatt (1,000 watts) of electrical power for one hour. For example, a 100-watt bulb burning for 10 hours will use one kilowatt-hour of energy.