watt-hour

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watt-hour

(wŏt′our′)
n. Abbr. WH or W-hr
A unit of energy, especially electrical energy, equal to the work done by one watt acting for one hour and equivalent to 3,600 joules.

watt-hour

n
(Units) a unit of energy equal to a power of one watt operating for one hour. 1 watt-hour equals 3600 joules

watt′-hour`

or watt′hour`,



n.
a unit of energy equal to the energy of one watt operating for one hour, equivalent to 3600 joules. Abbr.: Wh

watt-hour

A unit of power, especially electrical power, equal to the work done by one watt acting for one hour. It is equivalent to 3,600 joules.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.watt-hour - a unit of energy equal to the power of one watt operating for one hourwatt-hour - a unit of energy equal to the power of one watt operating for one hour
energy unit, heat unit, work unit - a unit of measurement for work
B.T.U., Board of Trade unit, kilowatt hour, kW-hr - a unit of energy equal to the work done by a power of 1000 watts operating for one hour
References in periodicals archive ?
The annually generated electricity of approximately 118,250 megawatthours will be supplied to the high-voltage grid of Israel Electric Corporation (IEC), for which a separate 22/161 kV substation will be set up.
Electricity Generation: The process of producing electric energy, or the amount of electric energy produced by transforming other forms of energy, commonly expressed in kilowatthours (kWh) or megawatthours (Mwh).
APS is looking for sources that can cumulatively provide 45,000 megawatthours annually.
AS OF DECEMBER, THE COMPANY HAD BOUGHT MORE THAN 458,000 MEGAWATTHOURS OF RENEWABLE ENERGY CREDITS FROM WIND FARMS.
In turn, the sale of gas for power production helps produce over 40,000 megawatthours of electricity per year and generates revenues for the city.
but actually uses 12 megawatthours, it may owe the wheeling utility $200.
Generation and transmission-distribution output levels are measured by megawatthours (MWH) produced by fossil fuel steam plants and total megawatthour sales (which equals sales for resale plus ultimate sales), respectively.
Approximately 50% and 74% of the expected generation megawatthours is unhedged for 2012 and 2013, respectively.
The US Department of Energy says that coal-fired power plants (burning anthracite, bituminous, subbituminous, lignite, waste coal, and coal synfuel) generated 1,787,669,000 megawatthours in the rolling 12-months ended October 2009, while natural gas-fired plants accounted for 906,217,000 megawatthours, and petroleum liquids (distillate fuel oil, residual fuel oil, jet fuel, kerosene, and waste oil) generated 28,216,000 megawatthours.
To date, UE has purchased RECs equal to 80,983 megawatthours of renewable energy.