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Home News Power Sector News TNEB looks at new technology to tap more wind

TNEB looks at new technology to tap more wind

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Wind farmTamil Nadu could soon be tapping wind energy in a more scientific and reliable way, with the Centre for Wind Energy and Technology (CWET) bringing in state-of-the-art equipment to gauge offshore wind potential. The Tamil Nadu Electricity Board (TNEB) is also planning to involve more equipment manufacturers to augment resources. TNEB will soon initiate talks with wind energy equipment manufacturers to commence a joint study on setting up windmills at lower altitudes. CWET has installed a mast called sonic detection and ranging (Sodar) in Dhanushkodi to study the wind generation potential near the ocean. The mast is 1,000 metre high and can be moved.

"The device can tap wind speed and other details for a distance of one kilometre. We do not plan to study coastal sites in and around Chennai," said P Kanagavel, a scientist at CWET.
Most Sodar systems issue an acoustic pulse and listen for the return signal. The intensity and the Doppler (frequency) shift of the return signal are analysed to determine wind speed. Sodar measures three-dimensional wind vectors from 30-1,000 meters.

According to CWET executive director S Gomathinayagam many industries across the country are showing interest in setting up wind energy units in Tamil Nadu. The wind energy potential in the state is nearly 4,988 MW, of which less than 3,000 MW is generated. As most of the ‘A' category wind generation sites like Coimbatore, Palakkad, Theni and the southern districts have been exploited, TNEB is planning to get help from private wind generation players to search for alternative sites.

"Compared to last year, the demand has gone up by 18%, despite the power usage restrictions for industries. We need more wind generation units across the state. It is said that at on-shore sites, wind generation is good below 600 meters. But we cannot carry out the study by ourselves, hence we are planning to rope in the industries," said a senior TNEB official.

Meanwhile, wind generation in Tamil Nadu has been dropping drastically. Two days back it was just 11 MW and on Monday it increased to 1,000 MW. "We have started purchasing about 2,000 MW as per the day's demand. We cannot rely on the wind alone anymore," said a senior TNEB official.

Source- Times of India

 

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