Wind Energy is
generated by harnessing the kinetic energy of atmospheric air. Wind Energy has
had been in use for centuries for several other purposes such as sailing,
irrigation and for grinding grain. Wind power systems transform kinetic energy
of the wind into useful sources of power.
During ancient
times, wind power systems were used for both milling and irrigation. It was
during the early years of the 20th century that wind power was started to be
harnessed for generation of electricity. Windmills have also been used in
several countries to pump water.
Wind turbines work
by transforming the Wind Energy into mechanical power that can be used for
conversion to electricity or for other mechanical purposes like grinding. Wind
turbines are used either as stand-alone units or in groups known as Wind Farms.
Small-sized wind turbines, known as aero generators are used for charging
large-sized batteries.
More than 80% of
the global Wind Energy capacity is installed in 5 countries with India at the
5th position. Wind power is the fastest growing source of renewable energy
globally with an established capacity in excess of 14,000 MW.
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