Definition of kilowatt-hour in English:


(also kWh)


  • A measure of electrical energy equivalent to a power consumption of one thousand watts for one hour.

    • ‘It takes about 12 kilowatt-hours of electricity to charge the car after a 50-mile trip.’
    • ‘The power plant generated 5.22 billion kilowatt-hours of electricity, up 4.8 per cent from the previous year.’
    • ‘The energy charge, measured in kilowatt-hours, is for the actual electricity that is used by the facility.’
    • ‘By using a 240-volt circuit (such as the outlet for an electric dryer), the car might be able to receive 240 volts at 30 amps, or 6.6 kilowatt-hours per hour.’
    • ‘The nation used 14 billion kilowatt-hours of electricity in February, 1.3 percent less than the same month last year, the bureau said.’