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wind power

n. Power harnessed from the wind.

wind power

n. power derived from the wind (as by windmills) [syn: wind generation]

Wind power

Wind farms consist of many individual wind turbines which are connected to the electric power transmission network. Onshore wind is an inexpensive source of electricity, competitive with or in many places cheaper than coal or gas plants. Offshore wind is steadier and stronger than on land, and offshore farms have less visual impact, but construction and maintenance costs are considerably higher. Small onshore wind farms can feed some energy into the grid or provide electricity to isolated off-grid locations.

Wind power gives variable power which is very consistent from year to year but which has significant variation over shorter time scales. It is therefore used in conjunction with other electric power sources to give a reliable supply. As the proportion of wind power in a region increases, a need to upgrade the grid, and a lowered ability to supplant conventional production can occur. Power management techniques such as having excess capacity, geographically distributed turbines, dispatchable backing sources, sufficient hydroelectric power, exporting and importing power to neighboring areas, using vehicle-to-grid strategies or reducing demand when wind production is low, can in many cases overcome these problems. In addition, weather forecasting permits the electricity network to be readied for the predictable variations in production that occur.

As of 2015, Denmark generates 40% of its electricity from wind, and at least 83 other countries around the world are using wind power to supply their electricity grids. In 2014 global wind power capacity expanded 16% to 369,553 MW. Yearly wind energy production is also growing rapidly and has reached around 4% of worldwide electricity usage, 11.4% in the EU.

Usage examples of "wind power".

The ability of boats to move down rivers with the currents and back upstream with wind power again depends upon variations in the water and wind.

Useless because nothing except muscle and some water and wind power works there, and even then, if you generate a current, it'll die before it reaches anything that might use it.

I have mostly hand equipment, and a small generator which can be adapted to work by wind power.

In an ambitious attempt to reclaim unusable land and take advantage of readily available solar and wind power, a number of underground cities were built.