Scarcity of Silicon Addressed in Dresden
M&C News reports
that solar energy companies attending the European Photovoltaic Solar Energy Conference and Exhibition addressed the need for innovation in production of solar devices that do not depend upon silicon. In this effort, Dow Corning announced PV 1101, a feedstock material that can be blended with solar-grade silicon. Ferro Electronic Material Systems introduced a new, ultra-thin silicon wafer with aluminum backing and Nanosolar reported promising work on creating a copper, indium, gallium and diselenide product to create a solar ‘ink’ to print on a variety of surfaces.
Worldwide demand for solar energy is estimated at 5 gigawatts, but silicon constraints limit the supply to under half that amount. The scarcity of silicon is one of the main reasons for the current high cost of solar energy.
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