Question

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

Answer 1

Answer:

Limitations of extracting energy from above sources are

(a) A windmill requires wind of speed more than 15 km/h to generate electricity from wind energy. Also large numbers of windmills are required to get feasible output which covers a large area.

(b) Very strong ocean waves are required in order to extract energy from waves. But these are not available all the time?

(c) Very high tides are required in order to extract energy from tides. But tides depends on the relative positions of the Sun, moon, and the Earth.

Answer 2

: Required Answer

a) The wind: Wind energy is trapped using windmills. One of the limitations of the wind energy is that the windmills requires a speed more than 15 km/h to generate electricity. And the number of windmills will be more to cover a huge area.

b) Waves: In order to extract energy from the waves, very strong ocean waves are needed.

c) Tides: In order to extract energy from the tides, the sun, the moon and the earth should be in a straight alignment and the tides should be very strong.