Watt

Watt

A watt is a unit of power. Power is the rate at which energy is used, and a watt is equal to a rate of one joule of energy per second. Watts are commonly used when referring to the energy consumption of relatively small things like lightbulbs, while kilowatts (a thousand watts) are used for larger machines. Megawatts (a million watts) are used to measure the electricity generation of power stations. See also kilowatt-hours.

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Part of Speech: noun
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Industry/Domain: Natural environment
Category: Climate change
Company: BBC
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Related terms

watt

Convention; Conferences

A unit of electrical power equal to a current of one ampere under one volt of pressure.

watt

Energy; Nuclear energy

A unit of power (in the international system of units) defined as the consumption or conversion of one joule of energy per second. In electricity, a watt is equal to current (in ...

watt

Weather; Meteorology

A unit of power equal to one joule per second or 10 7 ergs per second.

watt

Science; General science

A unit that is used to measure power. One watt is equal to one joule of work per second.

watt

Electrical equipment; Fuel cell

The watt (symbol: W) is the SI derived unit of power, equal to one joule of energy per second. It measures a rate of energy use or production.

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Natural environment; Climate change

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Annex II

Natural environment; Climate change

Countries which have a special obligation under the Kyoto Protocol to provide financial resources and transfer technology to developing countries. This group is a sub-section of ...

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Bali action plan

Natural environment; Climate change

A plan drawn up at the UN Climate Change Conference in Bali, in December 2007, forming part of the Bali roadmap. The action plan established a working group to define a long-term ...

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Natural environment; Climate change

A plan drawn up at the UN Climate Change Conference in Bali, in December 2007, to pave the way for an agreement at Copenhagen in 2009 on further efforts to reduce greenhouse gas ...