Wind power is using air flow through wind turbines to mechanically power generators. The net effects on the surroundings are much less problematic than those of power sources that are nonrenewable.
Onshore wind is not an economical way to obtain electricity, competitive with or in many locations more expensive than gas or coal plants. Offshore wind is more powerful and more constant than on land, and offshore farms have less visual impact, but maintenance and building costs are significantly higher.
Some energy can be fed by modest onshore wind farms into the power system or supply electricity to remote off-grid places.
Wind power gives varying electricity that is quite consistent from year to year but which has substantial variation over time scales that are shorter.
Therefore it is used in conjunction with other electrical power sources to provide an honest supply. As the percentage of wind power in a region increases, a must update the power system, and a lowered ability to supplant traditional generation can happen.
Additionally, weather forecasting allows the electricity network to be readied for the foreseeable variations in generation that happen. In 2014 16% enlarged. MW to 369,553 Annual wind energy generation can also be growing fast and has reached around 4% of global electricity use, 11.4% in the EU.