Q9 of 46 Page 268

What must be the minimum speed of wind to harness wind energy by turbines?

The minimum speed of wind to harness wind energy by turbines is 15 km/h because at this speed the turbines manage to maintain the required speed. Also, the wind energy is set up at those places where there is wind going on for maximum time of the year.

Not only the speed but time is also the factor governing the production of electricity by using wind energy.


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