Tuesday, March 3, 2009

Tidal Power


Coal, oil and natural gas are used to generate electricity, but all are non-renewable energy sources. How about use water? Now take a look of there!



How to generate Tidal Power?
- Made a dam across a river(a barrage)
- with turbines

1. Water flows back through the turbines.
2. Generated when the turbines rotate
3.rotates(in the same direction)when the water column is both rising and falling to drive a generator to produce electricity



More information
*The Philippines(made up of many small islands)
- Have strong currents between the islands
- Plans to build an underwater wall(a tidal fence)



*In France……
- A barrage
- Completed in 1966(crossesthe Rance River)



*In Nova Scotia, Canada……


- Was finished in 1984
- Produces power for 4000 homes

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