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Energy; system unit code (alternative) symbol or abbrev. notes sample default conversion combinations SI: yottajoule: YJ YJ 1.0 YJ (2.8 × 10 17 kWh) zettajoule: ZJ ZJ 1.0 ZJ (2.8 × 10 14 kWh)
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.
The EPA rating for on board energy efficiency for electric vehicles before 2010 was expressed as kilowatt hour per 100 miles (kWh/100 mi). [ 27 ] [ 31 ] For example, the window sticker of the 2009 Mini E showed an energy consumption of 33 kWh/100 mi for city driving and 36 kWh/100 mi on the highway, technically equivalent to 100 mpg‑e city ...
1.0 YJ (2.8 × 10 17 kWh) zettajoule: ZJ ZJ 1.0 ZJ (2.8 × 10 14 kWh) exajoule: EJ EJ 1.0 EJ (2.8 × 10 11 kWh) petajoule: PJ PJ 1.0 PJ (280,000,000 kWh) terajoule: TJ TJ 1.0 TJ (280,000 kWh) gigajoule: GJ GJ 1.0 GJ (280 kWh) megajoule: MJ MJ 1.0 MJ (0.28 kWh) kilojoule: kJ kJ 1.0 kJ (240 cal) hectojoule: hJ hJ 1.0 hJ (24 cal) decajoule: daJ ...
Energy densities table Storage type Specific energy (MJ/kg) Energy density (MJ/L) Peak recovery efficiency % Practical recovery efficiency % Arbitrary Antimatter ...
Watt-hours [Wh] 1 × 10 −12: 1.162 Wh ≈ 1 food calorie (large calorie, kcal), which is the approximate amount of energy needed to raise the temperature of one kilogram of water by one degree Celsius at a pressure of one atmosphere. 1 × 10 −9: 1.162 kWh Under controlled conditions one kilogram of TNT can destroy (or even obliterate) a ...
kilowatt-hour per 100 kilometres: kilowatt-hours per 100 kilometres: kilowatt-hour per 100 kilometers: kilowatt-hours per 100 kilometers: MJ/km kWh/mi: Kilowatt-hour: kWh/100 mi: kW⋅h/100 mi: 22.3694: kilowatt-hour per 100 miles: kilowatt-hours per 100 miles: mpge: Miles per gallon gasoline equivalent: MJ/100 km: MJ/100 km: 10: megajoule per ...
= 1 kWh (kilowatt-hour) (used for electricity) [59] 4.2×10 6 J: Energy released by explosion of 1 kilogram of TNT [59] [99] 6.1×10 6 J Kinetic energy of the 4 kg tungsten APFSDS penetrator after being fired from a 120mm KE-W A1 cartridge with a nominal muzzle velocity of 1740 m/s. [113] [114] 8.4×10 6 J