Question

State limitations of energy that can be harnessed from the sea.

Answer 1

Following are the limitations of energy that can be harnessed from the sea:

1. High tidal power plant construction costs because they need to be incredibly sturdy to withstand the force of the sea.
2. To harness ocean thermal energy efficiently, the difference in the temperature of surface water (hot) and the water at depth (cold) must be 20º or more.
3. Negative influence on marine life forms.
4. Limits arise from the location due to the limited availability of sites with sufficiently high tidal ranges or flow velocities. Very strong waves are required to obtain electricity from wave energy.
5. Tidal energy depends on the relative positioning of the Earth, moon, and Sun.
6. The variable intensity of sea waves.