Wake Effect:

Wind turbines extract energy from the wind and downstream there is a wake from the wind turbine, where wind speed is reduced. As the flow proceeds downstream, there is a spreading of the wake and the wake recovers towards free stream conditions. The wake effect is the aggregated influence on the energy production of the wind farm, which results from the changes in wind speed caused by the impact of the turbines on each other. It is important to consider wake effects from neighboring wind farms and the possible impact of wind farms which will be built in the future. As such in a place the distribution of wind turbines is spread but not close.

Some claim that there is impact of wind turbines on the crop yield. In many countries(including India) wind farms are set up in vacant windy areas but not in cultivated land. On the other hand wide use of chemical fertilisers and pesticides may contribute climate change.

As our noted Nuclear Scientist Dr.H.J.Bhabha remarked”No Power is costlier than no power”. Any addition to supplement conventional energy with Renewable Energy is the need of the hour.

Dr.A.Jagadeesh Nellore(AP),India
Wind Energy Expert
E-mail: anumakonda.jagadeesh@gmail.com

cheers