QSolar single-wafer-growth Crucible Cell eliminates Si loss - Photovoltaics World
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QSolar single-wafer-growth Crucible Cell eliminates Si loss

March 23, 2011 - Marketwire -- QSolar Ltd., with its automatic integrated Crucible Cell Spraytek79 manufacturing processes, is reporting solar cell manufacturing efficiency near to $1/W or grid parity.

Solar wafers account for 40% of the overall cost of the solar module. Conventional wafer manufacturing processes consist of growing large ingots of silicon crystals in furnaces and then cutting them with wire saws into thin wafers. This process results in material loses of up to 50% from the silicon dust produced during cutting, says QSolar. This dust can not be reused as it is no longer pure to the level required for solar wafer manufacturing.

QSolar's new Crucible Cell process eliminates this waste by using a metal casting method to manufacture individual wafers in graphite crucibles without any cutting. This process leads to up to 50% saving in silicon material, which the company reports results to up to 20% saving on the cost of the finished solar module.

QSolar will be implementing a fully automated integrated manufacturing line starting with solar-grade silicon and a piece of glass and ending up with a complete solar module. Implementation of this fully automatic Crucible Cell- Spraytek process will enable QSolar to manufacture its Spraytek panel range at a cost significantly lower than $1/W as well as offering volume pricing for its panels for under $1/W.

QSolar is a private technology company in the solar photovoltaic (PV) panel manufacturing field with proprietary manufacturing processes. QSolar has been granted conditional listing approval on the Canadian National Stock Exchange ("CNSX") through a reverse take-over of a reporting issuer and anticipates being able to announce the listing date on CNSX very soon. Learn more at http://www.qsolar.net/.

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