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renewable energy

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by

joao oliveira

on 4 November 2013

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Transcript of renewable energy

renewable energy
renewable energy
About 16% of global final energy consumption comes from renewable resources, with 10% of all energy from traditional biomass, mainly used for heating, and 3.4% from hydroelectricity. New renewables accounted for another 3% and are growing rapidly.
wind energy
The terms "wind energy" or "wind power" describe the process by which the wind is used to generate mechanical power or electricity. Wind turbines convert the kinetic energy in the wind into mechanical power. This mechanical power can be used for specific tasks (such as grinding grain or pumping water) or a generator can convert this mechanical power into electricity to power homes, businesses, schools, and the like.
solar energy
Solar energy is the cleanest and most abundant renewable energy source available. Modern technology can harness this energy for a variety of uses, including generating electricity, providing light or a comfortable interior environment, and heating water for domestic, commercial, or industrial use.


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Conclusion
Renewable energy is much better than normal energy because it will never run out.And is cheeper because we don`t need to extract it and don`t polute our enviroment.
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