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Measuring 3 m in diameter and 5 m high, it has a nameplate rating of 6.5 kW. Small-scale wind power is the name given to wind generation systems with the capacity to produce up to 50 kW of electrical power. [104] Isolated communities, that may otherwise rely on diesel generators, may use wind turbines as an alternative.
Wind Power Density (WPD) is a quantitative measure of wind energy available at any location. It is the mean annual power available per square meter of swept area of a turbine, and is calculated for different heights above ground. Calculation of wind power density includes the effect of wind velocity and air density. [25]
India has the fifth largest installed wind power capacity in the world. [96] As of 31 March 2014, the installed capacity of wind power was 21136.3 MW mainly spread across Tamil Nadu state (7253 MW). [97] [98] Wind power accounts nearly 8.5% of India's total installed power generation capacity, and it generates 1.6% of the country's power.
When it comes to wind energy, there's a lot of hot air blowing around. Proponents and opponents alike are guilty of forming opinions without evidence, and energy analysis can often be more mystery ...
The power available from the wind is a function of the cube of the wind speed, so as wind speed increases, power output increases up to the maximum output for the particular turbine. [81] Areas where winds are stronger and more constant, such as offshore and high-altitude sites, are preferred locations for wind farms.
After NextEra proposed a wind farm in Greeley County, Nebraska two years ago, Robert Bernt, a dairy farm owner in the area, helped to mobilize community members against the idea.
As of January 2023, the total installed wind power nameplate generating capacity in the United States was 141,300 megawatts (MW). [4] This capacity is exceeded only by China and the European Union. [5] Thus far, wind power's largest growth in capacity was in 2020, when 16,913 MW of wind power was installed. [6]
Historically, wind power was used by sails, windmills and windpumps, but today it is mostly used to generate electricity. This article deals only with wind power for electricity generation. Today, wind power is generated almost completely with wind turbines, generally grouped into wind farms and connected to the electrical grid.
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