Watt Hour Multiples and Billing Units
The kilowatt hour is commonly used by electrical distribution providers for purposes of billing, since the monthly energy consumption of a typical residential customer ranges from a few hundred to a few thousand kilowatt hours. Megawatt hours, gigawatt hours, and terawatt hours are often used for metering larger amounts of electrical energy to industrial customers and in power generation. The terawatt hour and petawatt hour are large enough to conveniently express annual electricity generation for whole countries.
| Submultiples | Multiples | |||||
|---|---|---|---|---|---|---|
| Value | Symbol | Name | Value | Symbol | Name | |
| 10-3 | mW·h | milliwatt hour | 103 | kW·h | kilowatt hour | |
| 10-6 | µW·h | microwatt hour | 106 | MW·h | megawatt hour | |
| 109 | GW·h | gigawatt hour | ||||
| 1012 | TW·h | terawatt hour | ||||
| 1015 | PW·h | petawatt hour | ||||
In India, the kilowatt hour is often simply called a Unit of energy. A million units, designated MU, is a gigawatt hour and a BU (billion units) is a terawatt hour.
Read more about this topic: Kilowatt Hour
Famous quotes containing the words watt, hour, multiples and/or units:
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—Ralph Waldo Emerson (1803–1882)
“I am grown by sympathy a little eager and sentimental, but leave me alone, and I should relish every hour and what it brought me, the pot-luck of the day, as heartily as the oldest gossip in the bar-room.”
—Ralph Waldo Emerson (1803–1882)
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