WIND MILL POWER

South India Corporation Limited owns fourteen Wind Energy generators in what is popularly known as 'wind mill belt' at Poolavady, Vadavalli, Kondampatti Villages between Palladam and Udumalpet as well as in Tirunelveli District. The installed capacity of these fourteen WEGs is 4.195MW.
Out of these, four are of 'Enercon' make each of capacity 230 KW, the total capacity being 0.92MW. These WEGs are 48 metres in height, made of tubular steel, conical type in shape with 3 blades each. These operate at a start-up wind speed of 2.5 m/s, rated wind speed being 13 m/s and with a survival wind speed of 70 m/s. Blades are made of GRP/Epoxy resin and the swept area is 7.07 sq.m. Generators are of synchronous type. These designed to consume minimum reactive power from TNEB grid and are of Variable speed, gearless technology, Superior in output.
These generate around 16 - 20 lakhs units of power annually depending on wind velocity, which is a variable factor.
Nine WEGs are of NEPC make contributing 2.025 MW to TNEB
grid. These nine units have generated at the rate of 40 lakhs of
units of power annually to TNEB grid.
Remaining one is 'Suzlon' make of 1.25 MW capacity, which is
the latest additions during 3/2004 to our group of WEGs. Hub height is 80 mts, Rated wind speed 14 m/s, Cutoff wind speed 25 m/s and survival wind speed 60 m/s. This is powered by an Asynchronous sling ring motor. This single WEG is expected to generate around 37 lakhs units of power annually.

As these WEGs are seasonal in character, power is mainly generated during the months of May to September, tapering in October and coming down further in November, December and January/February, picking up again in March and peaking thereafter from April onwards.
Wind velocity is a changing factor every year and therefore out put also varies. WEGs of SICL are performing very well over the years considering normal standards. Power generated is directly fed to TNEB grid as well as wheeled to our sister concerns.