Kids Science Building Wind Power Energy Toys Mill Destroyed !


Air flow through wind turbines or sails can produce significant mechanical powerWindmills are used for their mechanical power, windpumps for water pumping, and sails to propel ships, but the most frequent current use is to turn a generator for electrical powerWind power, as an alternative to burningfossil fuels, is plentiful, renewable, widely distributed, clean, produces no greenhouse gas emissions during operation, and uses little land.[2] The net effects on the environment are far less problematic than those of nonrenewable power sources.
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.[3][4][5] Offshore wind is steadier and stronger than on land, andoffshore 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.[6]
Wind power is very consistent from year to year but 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 windpower in a region increases, a need to upgrade the grid, and a lowered ability to supplant conventional production can occur.[7][8] 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.[9][10] In addition, weather forecasting permits the electricity network to be readied for the predictable variations in production that occur.[11][12][13]
As of 2015, Denmark generates 40% of its electricity from wind,[14][15] and at least 83 other countries around the world are using wind power to supply their electricity grids.[16] Wind power capacity has expanded to 369,553 MW by December 2014,[17] and total wind energy production is growing rapidly and has reached around 4% of worldwide electricity usage.[18]

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How To Destroy Wind Power
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