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06-December-06, 04:21 AM
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| News Hound  Join Date: Aug 2004 Location: Floating among Data streams, waiting for the right moment
Posts: 44,023
  |  Slashdot // Solar Cell Achieves 40% Efficiency Fysiks Wurks found on the U.S. Department of Energy website news of a breakthrough in solar energy efficiency. From the article: "...with DOE funding, a concentrator solar cell produced by Boeing-Spectrolab has recently achieved a world-record conversion efficiency of 40.7 percent, establishing a new milestone in sunlight-to-electricity performance." This page, linked from Wikipedia's article on solar energy, calculates the land area that would need to be covered by solar collectors at 8% efficiency to meet the world's energy needs (using 2003 figures). At 40% efficiency, it looks like a square 265 miles on a side in the American southwest would do it. More... |
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