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Author Topic: silicon/silicium N6 worth per Wp solar cell 2018  (Read 33 times)

Offline lancaIV

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silicon/silicium N6 worth per Wp solar cell 2018
« on: May 25, 2018, 07:30:19 PM »
                               Ultra thin silicon solar cell         

         Astrowatt's process deposits 50 microns of metal onto a monocrystalline silicon wafer. The substrate is "exfoliated" using a thermal cleaving process, creating an ultra-thin ~25 um silicon metal substrate. The process reuses a one-millimeter-thick 1-0-0 silicon substrate for the multiple exfoliations. The silicon can withstand a standard texturing step despite its thinness.
 
 So, the substrates are 25 to 50 microns thick and use just 0.22 grams per watt of silicon. Vass said that the firm has a roadmap to get to a cost of less then $0.30 per watt, compared to the current costs of $0.70 to $0.80 per watt. The company targets 22 percent to 23 percent efficiency and is starting to move toward commercialization.

                                      N6 solar cell silicon purity costs per Kg :
              http://www.cam.ac.uk/research/news/solar-grade-silicon-at-low-cost

 Based on the results of an independent economic survey, he believes that the process will drive down the cost of manufacturing solar-grade silicon from around the current $40–200/kg to a maximum of $8/kg, making solar power a more affordable option to generate power.

                                            R&D  result 2018

                       If $8/kg N6 solar grade silicon then $0,008/gr
                                                       and
                       $0,00176/Wp Astrowatt process silicon investment value
                            = < 1/5 US$cent per Wattpeak solar cell


Sincerely
             OCWL

http://www.asianfinancialforum.com/aff2012/pdf/aff_2012/synopsis/geraldstaruiala_ppt_en.pdf

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