Aluminum Maker Eyes Solar Industry. By Todd Woody, NYTimes, March 18, 2010. "Alcoa The aluminum manufacturer Alcoa wants to get into the solar trough business... [with] a new type of solar technology that the company said it believed will lower the cost of renewable energy. The company has replaced the glass in parabolic troughs with reflective aluminum and integrated the mirror into a single structure. Parabolic troughs focus sunlight on liquid-filled receivers suspended over the mirrors to create steam that drives an electricity-generating turbine. Parabolic trough technology has been in modern use in solar power plants since the early 1980s, but Alcoa executives said they saw an opportunity to refine the technology and get a foothold in the rapidly expanding renewable energy market."
2010-04-08
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