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Apr 24th, 2013
 
JA Solar commences mass production of MWT solar cells
 
JA Solar Holdings Co., Ltd. (Nasdaq:JASO), one of the world's largest manufacturers of high-performance solar power products, announced it has commenced mass production of metal wrap-through ("MWT") solar cells.
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MWT polycrystalline solar cell from JA Solar.
MWT polycrystalline solar cell from JA Solar.
  • MWT(Metal-Wrap-Through) technology reduces the metallized area on the front side and thus the optical losses

The Company's MWT monocrystalline and multicrystalline cells have an average conversion efficiency of 19.6% and 18.1%, respectively, and a peak conversion efficiency of 20.0% and 18.6%, respectively.

By moving the emitter contact from the front to the rear of the cell via  laser-drilling and plug paste printing, MWT technology reduces the metallized area on the front side, increasing overall conversion efficiency. When assembled into modules, MWT cells require no welding and are therefore subject to lower power loss and a lower cell-breakage rate.

 

 
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