watt-hour

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watt-hour

[′wät ¦au̇r]
(electricity)
A unit of energy used in electrical measurements, equal to the energy converted or consumed at a rate of 1 watt during a period of 1 hour, or to 3600 joules. Abbreviated Wh.

watt-hour

A unit of work equal to 3,600 joules; equivalent to the power of 1 watt operating for a period of 1 hour.

watt-hour

The power utilization for one hour measured in watts. Abbreviated "Wh," it is widely used to rate how long it takes for a battery to discharge. For smaller batteries, a milliwatt-hour (mWh) rating is used. For example, a 500 mWh battery means it will release 500 watts at a specific voltage for one hour before it is discharged. See ampere-hour and watt.
References in periodicals archive ?
1 to August 31, electricity usage was more than 10 million megawatt hours 10,016,899 to be exact.
Residential clients are currently charged $20 per megawatt hour, and industrial clients are charged $30.
Greenstone Mayor Michael Power, the president of the Northwestern Ontario Municipal Association, (NOMA) called the policy a "really good first step" but says it falls short of his group's stated goal of a $45 per megawatt hour "all-in" energy plan for industry.
The average hedged price for MWG was $48 per megawatt hour for MWG for both the remainder of 2006 and full-year 2007 and $54 per megawatt hour for HC for the remainder of 2006 and $64 for calendar year 2007.
Since the beginning of the year, 24 788 199 megawatts have been spent at 23 330 168 megawatt hours for the same time last year.
The electricity generated under the 12-year virtual power purchase agreement (VPPA) is expected to be 102,000 megawatt hours annually.
According to energy ministry officials it is the country's first wind turbine with the capacity to generate over one megawatt hours of electricity.
He went on to note that Iran needs some five to six billion dollars of investment and five billion litres of fuel in order to produce 5000 megawatt hours of electricity.
For the first year hotels have purchased a total of 116 megawatt hours of wind power.
Once the bugs are worked out, and the plant goes online, officials said the Magnolia project will generate 800 megawatt hours a day for Burbank.
Energy usage for the four days the four days of 2004 Republican National Convention is estimated by ConEdison Solutions to total 474 megawatt hours (MWH), enough energy to cover the annual electricity usage of approximately 110 typical New York City residences.
was ranked among the top 25 sellers of wholesale power in a report published by Electric Light and Power, an industry trade publication, based on rankings of net generation of megawatt hours.