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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)
1.0 erg (0.10 μJ) Watt-hour multiples: terawatt-hour: TWh TWh 1.0 TWh (3.6 PJ) TW.h TW⋅h gigawatt-hour: GWh GWh 1.0 GWh (3.6 TJ) GW.h GW⋅h megawatt-hour: MWh MWh 1.0 MWh (3.6 GJ) MW.h MW⋅h kilowatt-hour: kWh kWh 1.0 kWh (3.6 MJ) kW.h kW⋅h watt-hour: Wh Wh 1.0 Wh (3.6 kJ) W.h W⋅h Electron-volt multiples: gigaelectronvolt: GeV GeV 1.0 ...
The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m 2 ⋅s −3. [ 1 ] [ 2 ] [ 3 ] It is used to quantify the rate of energy transfer .
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 ...
Download as PDF; Printable version; ... 1 kWh = 3,600 kWs = 1,000 Wh = 3.6 million W·s = 3.6 million J. ... Some primary energy is lost during the conversion to ...
Electric power is the rate of transfer of electrical energy within a circuit.Its SI unit is the watt, the general unit of power, defined as one joule per second.Standard prefixes apply to watts as with other SI units: thousands, millions and billions of watts are called kilowatts, megawatts and gigawatts respectively.
2.0 × 10 6 W tech: peak power output of GE's standard wind turbine 2.4 × 10 6 W tech: peak power output of a Princess Coronation class steam locomotive (approx 3.3K EDHP on test) (1937) 2.5 × 10 6 W biomed: peak power output of a blue whale [citation needed] 3 × 10 6 W tech: mechanical power output of a diesel locomotive: 4.4 × 10 6 W
All the SI prefixes are commonly applied to the watt-hour: a kilowatt-hour (kWh) is 1,000 Wh; a megawatt-hour (MWh) is 1 million Wh; a milliwatt-hour (mWh) is 1/1,000 Wh and so on. The kilowatt-hour is commonly used by electrical energy providers for purposes of billing, since the monthly energy consumption of a typical residential customer ...