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TIDAL ENERGY

TIDAL ENERGY. Amidjojo & Chandra. Introduction. Tidal power AKA tidal energy is a form of hydro-power Converts energy from tides into electricity Not many are built around the world but considering . Some stuff that you should know.

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TIDAL ENERGY

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  1. TIDAL ENERGY Amidjojo & Chandra

  2. Introduction • Tidal power AKA tidal energy is a form of hydro-power • Converts energy from tides into electricity • Not many are built around the world but considering

  3. Some stuff that you should know • Ocean waves have an energy potential of up to 3,000 Gigawatts. • Hydroelectric energy produces 80% of all renewable sources • Used for a long time • Can save 18 tonnes of coal

  4. Benefits to this… • Protecting coastlines • Ready-made road bridge • Barrier • Flood Protection • Independent • No danger associated with the damage of the tidal barrage

  5. Types: • Barriers • “Sea Snakes” Eg. northern Portugal, Agucadoura • Barrages eg. Rance, France Current Turbines eg. Oregon

  6. How it works • How does a tidal dam work? As the tide comes in, the dam allows the sea water to pass through into a holding basin. As soon as the tide is about to go down, the dam is closed. The water held back in this way will be used to feed the turbines at low tide. • The tide moves a huge amount of water twice each day. • harnessing it could provide a great deal of energy - around 20% of Britain's needs. http://www.youtube.com/watch?v=qRUl1mJQHmc&feature=related

  7. So why use tidal energy? (cost effective) In comparing hydropower to other energy generators, the generators take less time to design, obtain approval, build and recover investment It is 90% efficient No AIR POLLUTION or of any sort The water that goes through the turbine is not altered therefore the energy can be used to produce can be used in other sources More predictable than wind and solar energy Saves space Taking no resources off the ground Blends in with environment

  8. France- Rance (1966) • 750 meters long • tidal basin measures 22.5 km² • Road bridge • Water passes through 24 turbines

  9. END Make use of all 75% of the water in the world

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