Party time!
Submitted by shompa on Tue, 2009-03-10 15:13
Solar cells are expensive, so it makes sense to use them efficiently. One way to do so is to concentrate sunlight onto them. That means a smaller area of cell can be used to convert a given amount of light into electricity. This, though, imposes another cost-that of the mirrors needed to do the concentrating.
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Publication Date:
10/03/2009