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Watch Melting steel with solar power thumbnail

Melting steel with solar power Video


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Solar Updraft Tower in Spain Video


Watch Solar Tax Credits Explained 2009 Video Thumbnail

Solar Tax Credits Explained 2009 Video


  

 

 

 

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iHouses Modular with Solar Panels

Using sustainable products to build environmentally friendly homes, with CNBC's Margaret Brennan. Investor: Warren Buffett and Berkshire Hathaway.