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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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