kilowatt-hour

[ kil-uh-wot-ouuh r, -ou-er ]
/ ˈkɪl əˌwɒtˈaʊər, -ˈaʊ ər /

noun

a unit of energy, equivalent to the energy transferred or expended in one hour by one kilowatt of power; approximately 1.34 horsepower-hours. Abbreviation: kWh, K.W.H., kwhr

Origin of kilowatt-hour

First recorded in 1890–95

Words nearby kilowatt-hour

Example sentences from the Web for kilowatt-hour

British Dictionary definitions for kilowatt-hour

kilowatt-hour

noun

a unit of energy equal to the work done by a power of 1000 watts in one hour Symbol: kWh

Scientific definitions for kilowatt-hour

kilowatt-hour

A unit used to measure energy, especially electrical energy in commercial applications. One kilowatt-hour is equal to one kilowatt of power produced or consumed over a period of one hour, or 3.6 X 106 joules.

Cultural definitions for kilowatt-hour

kilowatt-hour
[ (kil-uh-waht) ]

A unit of energy: the expenditure of one kilowatt of power for one hour. A toaster running for an hour will use about this much energy.