Renewable Energy - 123seminarsonly.com

Renewable Energy - 123seminarsonly.com

Renewable Energy By : Kaoutar Esbayou Randa Ettalbi Younes Alouani Mehdi Hassouni Contents Introduction Mainstream forms of renewable energy The advantages of renewable energy Renewable energy commercialization Conclusion

Introduction Renewable energy is energy which comes from natural resources such as sunlight , wind , tides , rain , and geothermal heat which are renewable (naturally replenished). A renewable energy is also an energy exploited by the man, in a way that its reserves do not run out. In other words, its speed of training must be bigger than its speed of use .

Mainstream forms of renewable energy Wind power : Wind energy is mainly used to generate electricity, by wind turbines . Wind is a renewable energy source because the wind will blow as long as the sun shines. Wind turbines ranges from around 600 kW to 5 MW of rated power , and it produces

no greenhouse gases during operation, such as carbon dioxide and methane Mainstream forms of renewable energy Hydropower : Energy in water can be harnessed and used. Since water is about 800 times denser than air , even a slow flowing stream of water, or moderate sea, can

yield considerable amounts of energy , There are many forms of water energy : Hydroelectric , micro hydro , damless hydro , ocean energy .etc Mainstream forms of renewable energy Solar energy : Solar energy is the energy derived from the sun through the form

of solar radiation. Solar powered electrical generation relies on photovoltaics and heat engines. A partial list of other solar applications includes space heating and cooling through solar architecture, daylighting, solar hot water , solar cooking, and high temperature process heat for industrial purposes

The advantages of renewable energy Renwable energy has a lot of advantages and fovorables characteristics such as : respect for the environment because its 100 % clean and it doesnt produce any pollute gases , safety (low risk of injury, doesnt cause accidents, regularity of supply...) , cleanliness (no hazardous wastes, easier to manage, recyclable) , the demand for fossil fuels is reduced Renewable energy commercialization

Growth of renewables : During the five-years from the end of 2004 through 2009, worldwide renewable energy capacity grew at rates of 1060 percent annually for many technologies. For wind power and many other renewable technologies, growth accelerated in 2009 relative to the previous four years. More wind power capacity was added during 2009 than any other renewable technology.

Renewable energy commercialization Economic trends : All forms of energy are expensive, but as time progresses ,renewable energy generally gets cheaper, while fossil fuels generally get more expensive. And its been explained that renewable energy technologies are declining in price for three main reasons: o First, once the renewable infrastructure is built, the

fuel is free forever. Unlike carbon-based fuels, the wind and the sun and the earth itself provide fuel that is free, in amounts that are effectively limitless. o Second, while fossil fuel technologies are more mature, renewable energy technologies are being rapidly improved. So innovation and ingenuity give us the ability to constantly increase the efficiency of renewable energy and continually reduce its cost. o Third, once the world makes a clear commitment to shifting toward renewable energy, the volume of production will itself sharply reduce the cost of each windmill and each solar panel, while adding yet more incentives for additional research and

development to further speed up the innovation process . Conclusion Rnewable energy is finally the better way to privide energy and satisfy the needs of this planet , Beside that, its clean and protects more the environement . The only thing that keep us from using it , is the expensive prices and costs , but scientist are working on that ! In the end all people will be able to use this energy , and by

doing that we can save the planet from pollution . Think clean , think green .

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