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: Kwh
Famous quotes containing the words watt, hour, multiples and/or units:
“Herein is the explanation of the analogies, which exist in all the arts. They are the re-appearance of one mind, working in many materials to many temporary ends. Raphael paints wisdom, Handel sings it, Phidias carves it, Shakspeare writes it, Wren builds it, Columbus sails it, Luther preaches it, Washington arms it, Watt mechanizes it. Painting was called “silent poetry,” and poetry “speaking painting.” The laws of each art are convertible into the laws of every other.”
—Ralph Waldo Emerson (1803–1882)
“They shift coffee-houses and chocolate-houses from hour to hour, to get over the insupportable labour of doing nothing.”
—Richard Steele (1672–1729)
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—Pamela Patrick Novotny (20th century)
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—Willa Cather (1873–1947)