First Solar Inc. (Nasdaq: FSLR) is buying TetraSun, a company that makes technology for solar panels, for an undisclosed amount. The deal comes after several solar panel companies have filed for bankruptcy and liquidated due to increased competition from foriegn manufacturers coupled with rising manufacturing costs. 

TetraSun develops cell architecture for solar photovoltaic panels that are more efficient to manufacture, requiring fewer steps, than multi crystalline silicon solar cells, which are also used in solar panels. TetraSun plans to start commercial-scale manufacturing of the technology in the second half of 2014.

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