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Walmart Invests in Solar Technology

The big-box store announced its plans to mount at least 15 megawatts worth of thin-film photovoltaic solar arrays on the roofs of 30 or so locations in both California and Arizona. The thin-film solar cells, which are fabricated with glass or other flexible materials, are less efficient than the conventional crystalline silicon construction but are much cheaper to produce. Walmart’s commitment to thin-film may inspire other commercial businesses searching for financially viable ways to green their facilities.
http://www.grist.org/article/wal-mart-says-thin-solar-is-in/


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