kilowatt hour


kilowatt hour
(kW·h or KWH or kw hr)
   a commercial unit of electric energy. One kilowatt hour represents the amount of energy delivered at a rate of 1000 watts over a period of one hour. Since the watt is 1 joule/sec and there are 3600 seconds in an hour, the kilowatt hour is equivalent to exactly 3.6 megajoules of energy, or about 3412.141 Btu, 859.846 (kilogram) Calories, or about 2.655 million foot pounds.

Dictionary of units of measurement. 2015.

Look at other dictionaries:

  • Kilowatt hour — Kil o*watt hour (Elec.) A unit of work or energy equal to that done by one kilowatt acting for one hour; approximately equal to 1.34 horse power hour. [Webster 1913 Suppl.] …   The Collaborative International Dictionary of English

  • kilowatt-hour — n a unit of work or energy equal to that expended by one kilowatt in one hour …   Medical dictionary

  • kilowatt hour — n written abbreviation kWh a unit for measuring electrical power, equal to the amount of work produced by one kilowatt in one hour …   Dictionary of contemporary English

  • kilowatt-hour — kilowatt hours N COUNT A kilowatt hour is a unit of energy that is equal to the energy provided by a thousand watts in one hour …   English dictionary

  • kilowatt-hour — [kil′ō wät΄our′, kil′ə wät΄our] n. a unit of electrical energy or work, equal to the power supplied by one kilowatt for one hour: abbrev. kWh …   English World dictionary

  • kilowatt-hour — ► NOUN ▪ a measure of electrical energy equivalent to a power consumption of one thousand watts for one hour …   English terms dictionary

  • Kilowatt hour — KWH redirects here. For other uses, see KWH (disambiguation). Residential electricity meter located in Canada The kilowatt hour, or kilowatt hour, (symbol kW·h, kW h or kWh) is a unit of energy equal to 1000 watt hours or 3.6 megajoules …   Wikipedia

  • kilowatt-hour — n. a measure of electrical energy equivalent to a power consumption of 1,000 watts for one hour. Usage: Abbr.: kWh. * * * noun, pl hours [count] technical : a unit of work or energy equal to the amount produced by one kilowatt in one hour abbr.… …   Useful english dictionary

  • kilowatt-hour — UK / US noun [countable] Word forms kilowatt hour : singular kilowatt hour plural kilowatt hours physics a unit for measuring electrical energy. The written abbreviation is kWh …   English dictionary

  • kilowatt-hour — kilovatvalandė statusas T sritis Standartizacija ir metrologija apibrėžtis Nesisteminis elektros energijos matavimo vienetas. Žymimas kWh: 1 kWh = 3600 kJ = 3,6 MJ. atitikmenys: angl. kilowatt hour vok. Kilowattstunde, f rus. киловатт час, m… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas