Encyclopedia > Kilowatt-hour

  Article Content

Kilowatt-hour

The kilowatthour (symbol: kWh) is a unit for measuring energy. It corresponds to one kilowatt (kW) of power being used over a period of one hour.

The kilowatthour is commonly used for electrical energy, since it may be easier to understand in a practical context than the proper SI unit for energy, the joule, which is a Ws (watt-second). The joule is a comparatively small unit, making numbers quite large.

1 kWh = 3,600,000 joules.



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
East Islip, New York

... median income for a household in the town is $71,106, and the median income for a family is $77,593. Males have a median income of $51,554 versus $36,959 for females. ...

 
 
 
This page was created in 34 ms