The SeaGen tidal generator with rotors raised
Tidal power is a form of hydropower that converts the energy of tides into electricity or other useful forms of power. Tidal power is the only form of energy which derives directly from the relative motions of the Earth–Moon system, and to a lesser extent from the Earth–Sun system. The tidal forces produced by the Moon and Sun, in combination with Earth’s rotation, are responsible for the generation of the tides. Other sources of energy originate directly or indirectly from the Sun, including fossil fuels, conventional hydroelectric, wind, biofuels, wave power and solar.
Tidal barrage power schemes have a high capital cost and a very low running cost. As a result, a tidal power scheme may not produce returns for many years, and investors may be reluctant to participate in such projects.
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REFERENCES:
1) http://en.wikipedia.org/wiki/Tidal_power
2) http://www.darvill.clara.net/altenerg/tidal.htm
3) http://www.alternative-energy-news.info/technology/hydro/tidal-power/
4) http://www.energy4kids.energyaustralia.com.au/renewable-energy-wave-tidal.html
IMAGE:
Name- Seagenraised
Source- http://commons.wikimedia.org/wiki/File:Seagenraised.jpg
Author- Fundy
Licensing- Creative Commons Attribution-Share Alike 3.0 Unported
