Wind Energy

Energy of the wind can be economically used for the generation of electrical energy.

  • Wind can be caused from two main factors:
  1. Heating and cooling of the atmosphere which generates convection currents. Heating is caused by the absorption of solar energy on the earth’s surface and in the atmosphere.
  2. The rotation of the earth with respect to atmosphere, and its motion around the sun.
Wind Energy Potential (in terms of wind speed) across India is shown below:

Schematic of how energy produced from wind is converted into electricity:

Wind energy site selection consideration

  1. The best sites, for wind energy are found off shore and the sea coast. An average value on the coast is 2400 kWh/m2 per year.
  2. The second best sites are in mountains. A typical average value is 1600 kWh/m2 per year.
  3. The lowest level of wind energy is found in plains where values are generally three or four times lower than that at the coast. A typical average is 750 kWh/m2 per year.

Wind Energy Schemes

1.Scheme for setting up of 2000 MW ISTC-connected Wind Power Projects
2.Scheme for setting up of 1000 MW ISTS - connected wind power projects.
3.Guidelines for Tariff Based Competitive Bidding Process for Procurement of Power from Grid Connected Wind Power Projects
4.National Wind-Solar Hybrid Policy