Question

what are the limitations of energy that can be obtained from the oceans​

Answer 1

The limitations are as follows----

1. The cost for setting up the required apparatus is very expensive

2. The tides or waves are unpredictable and are not constant

3. If tides or waves donot occurs, then no energy can be obtained

4. The release of thermal water or other harmful effluents on to oceans make the aquatic life suffer

5. Not as much effective because of probability in harnessing the energy

Answer 2

: Required Answer

The different forms of energy that can be obtained from the ocean are tidal energy, wave energy and ocean thermal energy. Following are the limitations of the energy obtained from ocean are

$\implies$ The relative positioning of the earth, the sun and the moon has an impact on the tidal energy.

$\implies$For the conversion of tidal energy into electricity, high dams are required.

$\implies$To obtain electricity from wave energy, very strong waves are required.

$\implies$For trapping the ocean thermal energy, there should be a temperature difference of more than 20°C between hot surface water and the cold water at a depth.