(Do you know of a source of energy that is clean, renewable and totally free?
Read and find out.)
The buzzword today is clean energy - something that we reap from nature. And, the search his led man to the sun (solar), the wind, the tides (tidal), water (hydro) and even biogas. The good news is that we, in India, have reasons to be proud. Not only do we have the world's only Ministry for Renewable Energy Sources, but we are also the world's fifth largest producer of wind energy.
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| Wind Energy |
"Wind energy" is derived through a process where wind is used to generate mechanical power or clectricity. Wind turbines convert the kinetic energy in the wind into mechanical power, which can he used for specific tasks (such as grinding grain or pumping water). A generator converts this mechanical power into electricity.
Since recorded history, wind power has been used to move ships, grind grain and pump water. There is evidence that wind energy was used to propel boats along the Nile as early as 5,000 B.C.
Since recorded history, wind power has been used to move ships, grind grain and pump water. There is evidence that wind energy was used to propel boats along the Nile as early as 5,000 B.C.
(What has been the history of man's use of wind energy? Where and how is wind energy used in India?)
In the United states, millions of windmills were erected as the American West was developed during the late 19th century. Most of them were used to primo water for farms and ranches. By 1910, wind turbine generators were producing electricity in many European countries. And while today, one associates windmills with the Netherlands where they are used for pumping watr, it is in Denmark that wind is an effective source of energy.
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| Water Energy |
Close to home. Tamil Nadu was among the first in India to give a fillip to wind energy over 10 years ago and contimes to be a leader. Nearly half of India's nearly 2000 Mw of installed capacity from wind energy comes from Tamil Nadu. Wind turbines have been "decorating" our landscape near Madurai and beyound.
In Chennai at the Centre for Wind Energy Technology, research is done to check out various wind sites where wind energy can be tapped. And, wind turbines of various sizes are checked to see if they are delivering what they promised to do.
Wind energy is also abundant in many parts of India from Gujarat, Andhra Pradesh and Kerala to the hilly regions in Maharashra.
Wind energy is also abundant in many parts of India from Gujarat, Andhra Pradesh and Kerala to the hilly regions in Maharashra.
(Is wind energy poprdarly used? What are its advatages ? Does it have any drawbocks?)
Is the west, surveys have consistently down that the public prefers wind and other renewable energy forms over conventional sources of generation. wind energy is free, renewable resource, so no matter how much is used today, there will still be teh same supply in the future. Wind energy is also a source of clean, nonpolluting electricity. Unlike conventional power plants, wind plants emit no air pollutants or greenhouse gases.
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| Greenhouse Gases |
In 1990, California's wind power plants offset the emission of more than 2.5
billion pounds of carbon dioxide, and 15 million pounds of other pollutas that would have otherwise been produced. It would take a forest of 90 million to 175 million trees to provide the same air quality.
billion pounds of carbon dioxide, and 15 million pounds of other pollutas that would have otherwise been produced. It would take a forest of 90 million to 175 million trees to provide the same air quality.
Some have voiced concern over the noise produced by rotor blades, aesthetic impact, and the plight of birds that fly into the rotors. Most of these problems do not exist in India as wind farms are located in remote areas or the problems have already been resolved through technological development.
The major challenger to use wind as a source of power is that it is intermittent and it does not always blow when electricity generation in the would. And who knows, might even be a lucrative career for many.





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