(a) Windmills are relatively expensive to maintain.
(b) Low energy production. Several windmills are required to produce a significant amount of electricity and hence many hectares of wind farms are needed.
(c) It is not fully reliable because wind may change direction.
(d) Production of wind energy requires large tracts of open land known as wind farms. The space taken by these farms alters the beauty of the environment.
Faimus answered the question on April 18, 2018 at 15:13
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