Question

What are the limitations of extracting energy from wind,waves and tides?

Answer 1

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Limitations of extracting energy from the wind: Wind flowing with a sufficient speed is not available everywhere and all the time. Thus wind is not a dependable source of energy. The kinetic energy of wind (wind energy) can be used only at the site of windmill.

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Answer 2

Answer:

Limitation of extracting energy from the wind:

i. It can be established at those places only, where wind blows for the greater part of a year.

ii. Wind speed should be higher than 15 km/h.

iii. It requires high level of maintenance.

Limitation of extracting wave energy and tidal energy:

i. It can be harnessed by trapping the sea waves in a dam. Only very few suitable sites exist where dams can be constructed.

ii. It is not a continuous and reliable source of energy.

iii. it is extremely costly and difficult to use.