Tidal Energy

Tidal power is also called tidal energy, tidal power is a form of hydro power that converts the energy form the tides into electricity or other useful energy.

How Does it Work?

tidal power works by the tides flowing through while under water windmills spin. the under water windmills are connected to a gearbox which generates the electricity. there are under water cables connected to the gear box which carries the electricity to shore.

Who Developed it?

no one knows who developed tidal power its has dated back to 900 AD.

Why was it developed?

tidal power was invented to save energy.It was also developed to give us a alternitave source of energy that we can use instead of relying on coal.

What is the history of the Technology?

The History of this dates back to about 900 A.D. Early tidal plants used naturally occuring tidal basins by building a dam across the opening of the basin and allowing the basin to fill on the rising tide,impounding the water as the tide fell,and then releasing impounded water through a waterwheel, paddlewheel or similar energy-conversion device. The power was typically used for grinding grains into flour. This power was available for about two to three hours, usually twice a day.

Benefits to the environment.

1. One benefit of tidal power is after it is built power is free!
2. Another is that tidal power doesn’t create any greenhouse gasses or any other wastes!
3. Off shore turbines aren’t very expensive to build and do not have a very large environmental effect!
4. Tidal Power is not very expensive to maintain!

Deficits

One major problem with the tidal power stations that it only generates energy when the tide is flowing in and out of the station but there is only 10 hours a day that the tide is flowing.

Examples that use this Technology.

Power plants use this technology and the power plants are located all over the world. For example one of the power plants is located at the Bay of Fundy on the Atlantic coast of North America, and another is located in Russia on the white sea.

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References

http://www.alternative-energy-news.info/technology/hydro/tidal-power/

http://www.buzzle.com/articles/tidal-electricity-tidal-power.html

http://www.tidalpowerus.com/

http://www.uh.edu/engines/epi1654.htm

http://www.tidalelectric.com/technology-history.shtml

http://www.communitysmarts.com/the-main-disadvantage-of-tidal-power/

http://www.tutorvista.com/content/physics/physics-ii/fission-and-fusion/tidal-power.php

http://www.darvill.clara.net/altenerg/tidal.htm

http://library.thinkquest.org/06aug/01335/tidal.htm

http://www.youtube.com/

http://images.google.com/imghp?hl=EN