kilowatt-hour
English
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Etymology
[edit]By surface analysis, kilowatt + hour, or, by surface analysis, kilo- + watt-hour.
Noun
[edit]kilowatt-hour (plural kilowatt-hours)
- A unit of energy equal to that provided by one kilowatt acting for one hour (3·6 × 10⁶ joules).
- Alternative forms: kW·h, kW h, kWh, kW-hr, kWhr (symbols); kilowatt hour
- Holonyms: watt-year (31.536e6 J) < gigajoule (1.000e9 J) < megawatt-hour (3.600e9 J) < kilowatt-year (31.536e9 J) < terajoule (1.000e12 J) < gigawatt-hour (3.600e12 J) < megawatt-year (31.536e12 J) < petajoule (1.000e15 J) < terawatt-hour (3.600e15 J) < gigawatt-year (31.536e15 J) < exajoule (1.000e18 J) < petawatt-hour (3.600e18 J) < terawatt-year (31.536e18 J)
- Meronyms: yoctojoule (1.000e-24 J) < zeptojoule (1.000e-21 J) < attojoule (1.000e-18 J) < hartree (4.35974e-18 J) < femtojoule (1.000e-15 J) < picojoule (1.000e-12 J) < nanojoule (1.000e-9 J) < microjoule (1.000e-6 J) < millijoule (1.000e-3 J) < joule (1 J) < milliwatt-hour (3.6 J) < microwatt-year (31.536 J) < kilojoule (1.000e3 J) < watt-hour (3.600e3 J) < milliwatt-year (31.536e3 J) < megajoule (1.000e6 J)
Usage notes
[edit]- The unit is often used to measure electrical consumption on an electricity meter, for which domestic consumers are charged.
- The orthographic variants of the symbols (e.g., kW·h, kW h, kWh) are explained in Wikipedia at kilowatt-hour § Unit representations.
Translations
[edit]unit of energy
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