Energy from the oceans

Since the world reserves of conventional primary sources, such as coal, oil and gas, are not unlimited and may be exhausted before the century is out, alternative means of power generation have been sought. The exploitation of the mechanical energy of the sea has received almost universal approval. The tidal power station is employed for exploiting the potential energy of the sea, which takes three basic forms: dynamic energy, through the motion of waves, tides and currents, heat energy in the various layers between the sea surface and deep water, and the substances contained in the seawater itself