Wind Potential


Wind in India are influenced by the strong south-west summer monsoon, which starts in May-June, when cool, humid air moves towards the land
and the weaker north-east winter monsoon, which starts in October, when cool, dry sir moves towards the ocean.
During the period march to August, the winds are uniformly strong over the whole Indian Peninsula, except the eastern peninsular coast.




Wind speeds during the period November to march are relatively weak, though higher winds are available during a part of the period on the Tamilnadu coastline.

A notable feature of the Indian programme has been the interest among private investors/developers in setting up of commercial wind power projects.


Wind Regime


The macro-scale atmospheric flow of wind in tropical India is determined strongly by the strength of the monsoon winds.The monsoon period in India can be categorized into two.

  • South-West monsoon.

  • North-East monsoon.
The South-West monsoon begins in the month of
April and is formulated in the Indian ocean which later gradually moves in the North-East direction and first hits the state of Kerala by the second half of May. Wind gradually gains strength over the months and peaks during the month of July. During this period surface wind speeds exceeding 20-30 kmph are found over Western India, Southern Tamil Nadu, Saurashtra, Kutch regions and coastal Bengal.

Strong upper winds (150m above ground) are observed in the forenoons over the interior Peninsula, Western Madhya Pradesh, Rajasthan and Saurashtra during the peak monsoon period.

The monsoon begins in the month of April and is formulated in the Indian ocean which later gradually moves in the North-East direction and first hits the state of Kerala by the second half of May. Wind later gains strength over the months and peaks during July.

From September the wind generally weakens over areas like Saurashtra, Kutch and Southern Tamil Nadu experiencing winds of over 15 kmph. This is the effect of large scale air-flow during South-West monsoon period. During the winter months, the large scale air-flow reverses i.e, moves from the Himalayan belts towards the Indian ocean which is called as the North-East monsoon. Wind speeds over 10 kmph are experienced during this period in Orissa, Saurashtra, Kutch and Southern Tamil Nadu.

   

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