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Kilowatt-hour
| kilowatt-hour | |
|---|---|
 Residential electricity meter located in Canada | |
| General information | |
| Unit system | Non-SI metric |
| Unit of | Energy |
| Symbol | kW⋅h, kW h |
| Conversions | |
| 1 kW⋅h in ... | ... is equal to ... |
| SI units | 3.6 MJ |
| CGS units | 3.6×1013 erg |
| Imperial units | ≈ 85,429,300 ft⋅pdl |
| English Engineering units (US only) | ≈ 2,655,224 ft⋅lbf |
A kilowatt-hour (unit symbol: kW⋅h or kW h; commonly written as kWh) is a non-SI unit of energy equal to 3.6 megajoules (MJ) in SI units, which is the energy delivered by one kilowatt of power for one hour. Kilowatt-hours are a common billing unit for electrical energy supplied by electric utilities. Metric prefixes are used for multiples and submultiples of the basic unit, the watt-hour (3.6 kJ).
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