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Topic: Science
Number of pages / Number of words: 4 / 845
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They have the advantage of converting light energy directly into electrical power and because they have no moving parts, they do not wear out. Another advantage is that they are made of silicon which is very abundant on Earth so that their fabrication will not be limited due to a lack of resources. The disadvantage they have is that they break down in everyday weather and deteriorate; the average life span being only about 20 years and they are costly...


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The disadvantage they have is that they break down in everyday weather and deteriorate; the average life span being only about 20 years and they are costly. PV cells are used in many everyday items, like radios and calculators. More efficient cells will be developed and less production expenses will hopefully bring the price of PV power to a more reasonable, more useable range...


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THE NEEDS FOR ALTERNATIVE ENERGY IN UNITED STATES Electrical Energy the alternative energy source to oil A Great Alternative Energy Source Alternative Energy Potentials of Biogas Alternative Energy Sources Alternative Energy and Hybrid Cars Alternative Energy: The Sun Alternative Forms of Generating Electrical Energy: Wind, Solar and Fuel Cell Power Alternative energy resources Alternative energy Desert Winds And Electrical Energy Saving Electrical Energy Solar Energy: An Alternative Energy Alternative Energy Sector In India

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