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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.
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)
The unit of energy consumed is deemed to be 33.7 kilowatt-hours without regard to the efficiency of conversion of heat energy into electrical energy, also measured in kilowatt-hours (kWh). The equivalence of this unit to energy in a gallon of gasoline is true if and only if the heat engine, generating equipment, and power delivery to the car ...
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 100 kilometres: megajoules per 100 ...
3 Conversion to other units. ... 4.184 × 10 6 J or 4.184 megajoules 1.162 kWh ... The energy of that blast could power the entire United States for 3.27 days.
A unit of electrical energy, particularly for utility bills, is the kilowatt-hour (kWh); [3] one kilowatt-hour is equivalent to 3.6 megajoules. Electricity usage is often given in units of kilowatt-hours per year or other periods. [4] This is a measurement of average power consumption, meaning the average rate at which energy is transferred ...
A human in a sprint has approximately 3 kJ of kinetic energy, [20] while a cheetah in a 122 km/h (76 mph) sprint has approximately 20 kJ. [21] One watt-hour, of electricity or any other form of energy, is 3.6 kJ. megajoule The megajoule is approximately the kinetic energy of a one megagram (tonne) vehicle moving at 161 km/h (100 mph).
Recommended food energy intake per day for a moderately active man (2600 food calories) [115] [119] 3.3×10 7 J: Kinetic energy of a 23 lb projectile fired by the Navy's mach 8 railgun. [120] 3.7×10 7 J $1 of electricity at a cost of $0.10/kWh (the US average retail cost in 2009) [121] [122] [123] 4×10 7 J