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Evergreen down after Citi slashes to rating 'Sell'

Shares of Evergreen Solar Inc. took a hit Monday after a Citi analyst downgraded the solar power products maker, saying its business strategy of manufacturing wafers at a lower cost than conventional methods is "taking too long to materialize." Full story

Chicago getting tower of power — solar power

The Willis Tower (formerly the Sears Tower) is on deck to become an enormous vertical solar farm with the installation of photovoltaic glass panels on the south side of the skyscraper's 56th floor. Full story

China Sunergy shares jump after 4Q earnings

China Sunergy Co., Ltd. said Thursday that fourth-quarter income jumped to $15.4 million as it increased shipments and sold solar cells for a higher price. The company reported a loss in the same period of 2009. Full story

Inkjet printers may be the future of solar cells

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Hornet has natural solar cells in its body

The body shell of the Oriental hornet converts sunlight into electricity. Full story

Treating Cancer With Light

Photovoltaics are often touted as potential game-changers as a source of alternative energy, but new microscopic versions of solar cells could soon be lifesavers for millions of cancer patients. Full story

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Scientists develop self-healing solar cells

Old blue jeans recycled as solar panels?

Amtech gets $15 million in solar orders

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