Thought for the month
“To know yet to think that one does not know is best; Not to know yet to think that one knows will lead to difficulty.” Lao Tzu, philosopher (6th century BCE).
Tuesday, 15 May 2012
Cheaper PV chips?
Reducing the cost of solar-grade silicon is seen as important for increasing the worldwide use of photovoltaics and reducing our dependency on fossil fuels. A new process under development at the University of Cambridge has the potential to drive down the cost of manufacturing solar-grade silicon. Based on the electrochemical FFC process the group has devised a two stage method that uses calcium chloride in the reduction of sand to make high purity silicon. They believe 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,