What are the limitations on obtaining enegry from wind ?

Explanation

Limitations in obtaining energy from wind are as follows:
(i) Establishment of wind energy farms requires large area of land. For a 1 MW generator, the farm needs about 2 hectares of land. The initial cost of establishment of the farm is quite high.
(ii) The tower and blades are exposed to the various forms of nature like rain, Sun, storm and cyclone, hence, they require a high level of maintenance.
(iii) There should be some back-up facilities to take care of the energy needs during a period when there is no wind.
(iv) Wind energy farms can be established only at those places where wind blows for the greater part of a year.
(v) The wind speed should also be higher than 15 km/h to maintain the required speed of the turbine.
(vi) Wind turbines are killing migrating birds.