The worldwide demand for solar grade silicon reached an all time high between 2007 and 2008. Although growth in the
solar industry is slowing due to the current economic downturn, demand is expected to rebound in 2011 based on current
cost models. However, demand will increase even more than currently anticipated if costs are reduced. This situation
creates an opportunity for new and innovative approaches to the production of photovoltaic grade silicon, especially
methods which can demonstrate cost reductions over currently utilized processes.