Silicon Wafer Cutting: Difference between revisions
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It is currently made with electrolysis of carbon + sand. [https://www.cleanenergyreviews.info/blog/solar-panel-components-construction]. No clear path is known for reduction of sand with hydrogen? | It is currently made with electrolysis of carbon + sand. [https://www.cleanenergyreviews.info/blog/solar-panel-components-construction]. No clear path is known for reduction of sand with hydrogen? | ||
99% pure silicon is refined further by reacting with hydrochloric acid to make nasty ass trichloroethane. Innovation would be required to make this happen without toxic silanes. | 99% pure silicon is refined further by reacting with hydrochloric acid to make nasty ass trichloroethane. Innovation would be required to make this happen without toxic silanes. [https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.microchemicals.com/technical_information/czochralski_floatzone_silicon_ingot_production.pdf&ved=2ahUKEwiq8py45YT0AhXimmoFHVaFBkoQFnoECBAQAQ&usg=AOvVaw2gey_gC16fis_mV7qtgdbP] | ||
Revision as of 22:51, 6 November 2021
Process of parallel wire cut with abrasive slurry of diamond or SiC grit [1]
Costs
- $15/kg for polysilicon [2]
- 3.6 cent per watt silicon costs
- 2018 had 37 cent minimum sustainable selling price, and long term prediction is 24 cents (another 30 percent reduction.
This puts PV at under $100 for a 380W panel, or about $2/lb.
Silicon Production
It is only 10 percent of panel cost,
It is currently made with electrolysis of carbon + sand. [3]. No clear path is known for reduction of sand with hydrogen?
99% pure silicon is refined further by reacting with hydrochloric acid to make nasty ass trichloroethane. Innovation would be required to make this happen without toxic silanes. [4]