Tidal power (tidal energy) facts - Interesting energy facts - 1 views
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Tide mills, in use on the Spanish, French and British coasts, date back to 787 A.D.
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Tidal energy is a type of energy that produces electricity and other forms of power through the use of water.
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The tide moves a huge amount of water twice each day and although the tidal energy supply is reliable and plentiful, converting it into useful electrical power is not easy.
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The first involves converting the power of the horizontal movement of the water into electricity. The second involves producing energy from the rise and drop of water levels
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Although the technology required to harness tidal energy is well established, tidal power is expensive, and there is only one major tidal generating station in operation. This is a 240 megawatt station at the mouth of the La Rance river estuary in France.
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There are three prototypes of tidal energy devices: horizontal axis turbine, vertical axis turbine, and oscillating devices
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Tidal energy is not on the list of sustainable energy technologies the UN agencies even though for islanders it is our best hope for large amounts of affordable clean power.
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Turbines, similar to wind turbines, can be anchored to the sea bed to generate electricity from tidal currents
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Tidal energy has an efficiency of 80% in converting the potential energy of the water into electricity