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The Pros and Cons of Renewable Energy Sources

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Meaghan Hendricks

on 15 April 2013

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Transcript of The Pros and Cons of Renewable Energy Sources

http://www.discountelectricity.com/122/pros-and-cons-to-different-energy-sources/ http://saveenergy.about.com/od/alternativeenergysources/a/altenergysource.htm http://www.dlist.org/burning-issues/energy-sources-what-are-the-pros-and-cons Pros Cons Wind power is intermittent, and consistent wind is needed for continuous power generation. Large wind farms can have a negative effect on the scenery. Farming and grazing can still take place on land occupied by wind turbines which can help in the production of biofuels. Wind farms can be built off-shore. Solar power generation releases no water or air pollution. Solar energy can be used very efficiently for practical uses such as heating and lighting. Solar power does not produce energy if the sun is not shining. Nighttime and cloudy days limit the amount of energy produced. Solar power stations can be very expensive to build. The benefits of solar power are seen frequently to heat pools, spas, and water tanks all over. If done correctly, geothermal energy produces no harmful by-products. Once a geothermal plant is build, it is generally self-sufficient energy wise. If done incorrectly, geothermal energy can produce pollutants. Improper drilling into the earth can release hazardous minerals and gases. Geothermal power plants are generally small and have little effect on the natural landscape. Geothermal sites are prone to running out of steam. Dams can be very expensive to build. There needs to be a sufficient, and powerful enough, supply of water in the area to produce energy. When houses using other sources of energy lose power during a storm, those who use wind energy will still have their power. Low maintenance cost. They can be damaged during thunderstorms, especially if they’re tall. Increase pressure on food prices and livestock feed Takes more energy to produce then it makes Does not transport well Very corrosive on some metallic parts http://www.alternativeenergysource.org/pros_cons.htm WindIND SOLAR HYDRO-
ELECTRIC ETHANOL GEO-
THERMAL the pros and cons of RENEWABLE ENERGY SOURCES Cons Pros Cons Pros Reduced greenhouse gas emissions. Increasing energy security by providing an alternative to fossil fuels. Cons Pros Water can be accumulated above the dam and released to coincide with peaks in demand. So, hydroelectric power stations can promptly increase to full capacity. Electricity can be generated constantly, because there are no outside forces. Hydroelectric power produces no waste or pollution. Water used for hydro power can be reused. Cons Pros
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