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Best Sources for Alternative Energy  
BESTS 

Tags: alternative energy, pv, solar, wind, gasification, methane

The best sources of alternative energy that do not produce additional co2 and reduce our dependence on foreign oil.

	Photo Voltaic (PV) - PV cells convert sunlight into electricity.
	Concentrated Solar - Sunlight from a large area is concentrated to a small area creating very high heat.
	Wind Power - Vertical and horizontal wind turbines generate electricity by the wind flowing over their blades.
	Gasification - Biomass is burned in a low oxygen state creating gases, carbon monoxide and hydrogen, that can be burned or used to power engines.
	Geothermal - The heat from deep in the earth is used to produce steam which in turn produces electricity.
	Micro Hydro - Small scale electrical generation using streams and rivers. Utilizes natural vertical drop instead of building large dams.
	Ocean Thermal - Pressurized gas is created from the temperature differences in the ocean and used to produce electricity.
	Tidal Energy - Similar to windmills but located under water.
	Cellulosic Ethanol - Liquid fuel produced from organic material not consumed as food.
	Methane - A gas that is being produced all the time from organic material breaking down and can be made from waste materials and used like natural gas.

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