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Infoclip: Tidal Energy

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Published on Feb 16, 2008

+++THIS VIDEO ORIGINATED FROM THE EUROPA AUDIO/VISUAL SERVICE WEBSITE+++

At present there are several ways of producing electricity directly from the ocean. The most developed methods are tidal power, ocean thermal energy conversion, and wave power. The main advantage of tidal power is that it provides a clean, renewable and above all predictable source of energy. Tidal power is produced by building a dam across the opening of a tidal basin. The sluice gate opens to allow the tide to flow into the basin. When closed, the sea level drops and standard hydropower techniques generate electricity from the water elevated in the basin. The Rance power station, situated south of St Malo (France) is the unique tidal power station in the world providing electricity for commercial use. Inaugurated in 1966, it can generate 240 megawatts of power, with minimal environmental impact, and provide electricity for 223,000 inhabitants. The tide fills and empties the Rance estuary twice a day and the amplitude can reach the record height of 13.5 meters. This infoclip shows: - Rance power station and estuary - Pylons - St Malo at night.

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