Thought for the month

“You cannot have freedom without a rule of law ... and if you don't have it, what you tend to get is corruption and that is death to freedom, it's death to truth, it's death to honour, it's death to democracy.”

Margaret Thatcher, 1 October 1996.

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,

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