Hinged Contour Devices

A hinged contour device is loosely moored to the sea bed. It can work in various ways but in general, as the waves move up and down, parts of the device move with the motion of the waves.

This alternating tension between the different parts creates the energy. To harness the energy, as the device moves, fluid is pushed through hydraulic pumps to generate electricity.

Each of these methods has to allow for varying sizes of waves. Some have different functions within one device so that they can harness the wave power in small or large waves in the most efficient way.

The Pelamis is an example of a hinged contour device.

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