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 ?
The companies conserve over 3,000 gigawatt-hours per year, saving $250 million as of 1996.
With 26 units in nine hydropower plants, Kraftwerke Oberhasli AG, one of Switzerland s leading hydropower plant operators, provides a total output of approximately 2,350 gigawatt-hours, representing around 7% of the total output from all Swiss hydropower plants.
LADWP will need to procure an additional 3,500 gigawatt-hours of renewable energy by 2010 to meet the accelerated RPS goal as well as to sustain that level in the future.
The Pine Tree Wind project will generate 340 gigawatt-hours and boost the level of renewable energy by about 1.
In addition, LADWP's Solar Rooftop Program will generate an additional 24 gigawatt-hours per year by 2010.
LADWP is negotiating with companies to acquire or develop approximately 1,694 gigawatt-hours (or 395 megawatts) of future renewable power.
2 percent, creating an energy requirement of 147,300 gigawatt-hours (GWH) by the year 2013(1).
3 percent of the LADWP power system energy requirements, or approximately 333 gigawatt-hours annually.
Its principal operations consist of Pepco and Conectiv Power Delivery, which deliver 50,000 gigawatt-hours of power to more than 1.
Powered by two GE gas turbines, LSP produces 850 gigawatt-hours of electricity per year as well as steam for industrial customers.
Hidrocantabrico has approximately 520,000 electricity customers and over 115,000 natural gas customers with 1999 sales exceeding 7,600 gigawatt-hours of electricity and 1,100 mte of natural gas.
It is the fifth-largest of Austria's nine public supply utilities in terms of gigawatt-hours, and has about 235,000 electricity customers.