T. Ramakrishnan CHENNAI: Availability of a substantial quantum of wind energy has made a difference to the power supply position, with the Tamil Nadu Electricity Board (TNEB) lifting load shedding all over the State on Tuesday afternoon. Since Sunday, Chennai and suburban areas did not have load shedding. TNEB officials attribute the relaxation of the system to the availability of more power. On Tuesday evening (around 6-40 p.m.), about 1,500 megawatt of power was produced. Throughout the day, the wind power generation was in the range of 1,000 MW-1,500 MW. K. Kasturirangaiyan, vice-chairman of the Indian Wind Power Association, said wind power generation was 1,850 MW during the peak time on Sunday. According to the TNEB, there was no load shedding after 12-30 p.m. on Tuesday. From 6 a.m. to noon, there was load shedding to the tune of about 500 MW. Despite the improvement, the Board continued to purchase about 100 MW of power from Kerala in view of the element of uncertainty regarding wind power. But, poor generation in the Neyveli units is causing concern to authorities. The State is not getting even 50 per cent of its entitlement. Only around 340 MW of power is being supplied from them. The government and the Board have been urging the Neyveli Lignite Corporation to expedite resumption of the normal quota of power. Mr. Kasturirangaiyan, however, said generation of wind power would normally go up till September-end or early October. Subsequently, there would be a decline in production. On an average, generation would be around 400 MW during October-April, except in December and January, when it would be less than the average production. He said that though the power of wind during northeast monsoon was considered to be weaker than that of wind during southwest monsoon, windmills along the Kanyakumari-Tuticorin coastal belt would be able to generate considerable quantum of power.