Images: Supersize solar power | CNET News.com - 0 views
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Energy Net on 26 May 08Parabolic troughs, one of which is shown here, have been around for 25 years, and the technology will be around for at least another 25. Parabolic troughs reflect sunlight to heat liquid carried through a tube above the troughs. That liquid is converted to steam, which drives a traditional electricity turbine.