Tidal Energy

Wave Energy

Waves are caused by the wind blowing over the surface of the ocean. There is tremendous energy in the ocean waves that can be used to generate electricity. In one idea, buoys are anchored to the ocean floor, and as waves raise and lower the float, electricity is generated in an electric coil.

Image illustrating wave energy

In another type, an articulated 'snake' floats on the ocean surface. Its joints are connected to hydraulic rams that move with the wave motion, forcing hydraulic fluid to move small turbines that power electric generators.

Image of a pelamis wave energy converter

Currently, none of these wave energy programs are producing electricity commercially. However, as the technology continues to develop, harnessing wave power to make electricity may become practical.

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