What is the minimum wind velocity required for obtaining useful energy with a windmill?

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asked Jan 22, 2018 in Physics by Golu (37,045 points) 19 145 414
What is the minimum wind velocity required for obtaining useful energy with a windmill?

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answered Jan 22, 2018 by faiz (82,347 points) 6 6 11
selected Jan 22, 2018 by Golu
 
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Minimum velocity required for obtaining useful energy with a windmill is about 15 km/h.

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