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KWh

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

The kilowatt hour 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 watt second (W·s). The joule is a comparatively small unit, making numbers quite large.

1 kW·h = 3,600,000 joules.

The kilowatt hour is a commonly used unit of billing for electric utility companies, although many companies are moving to use the unit megajoule(MJ) instead.

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Converting KW to KWh hardymassoudi@yahoo.com - February 20th, 2005
I have a water pump that draws 4 Amp @ 110Vac. How do I convert the Wattage (440 W) to KWH, so I can estimate its usage in KWH? Thanks, Hardy Massoudi read more » messages 1

KWh eng.omar@gmail.com - April 6th, 2005
Dear Sir, How could i calculate the KWh from a given values like running power(KW) or current(Amp) with a given voltage(V) As an example: our voltage system is 220V/50Hz , I have an air-conditionar in my room draws 13 Amp at running (about 2.86 KW), usually it runs about 8 hours a day. And another all-time running current for other equipments in the room is 3 Amp (about 660W all over the 24 hours), what is the KWh of my room Best Regards, Omar read more » messages 1

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "KWh".