Wave Power
This is the energy that is generated from ocean surface waves. Although scientists are knowledgeable how to extract this energy, there has been no commercial “wave farms” since last year. The first wave farm was established in Portugal which consisted of three 750-kW devices mounted on buoys that bobs up and down with the waves. Other being planned will be in the northern coast of California, in the Orkneys area of Norther Ireland, and off the northern coast of England near Cornwall. Wave power should be distinguished from tidal power which is derived from the interaction of the Earth-Moon gravitational systems. Tidal power is superior to other renewable energy sources such as solar power, wave power and wind power because it is fairly predictable (which makes it reliable). High tides and low tides arrive on time regularly.
Wave power generator
Wave power has its drawbacks also and one of them is that landlocked countries who have no access to seashores have no use for it. Even England which has a long coastline did not pursue its “UK Wave Energy” and discontinued it for no reason on March 19, 1982.
The above website is that of Pelamis, the only manufacturer of commercially-viable machines that convert offshore wave energy into grid-quality electricity. The concept is relatively simple. It uses a buoy with a piston that pressurizes a container with seawater. The subsequent pressure cranks or turns a turbine that then produces the electricity.