While CdTe photovoltaics offer the promise of renewable, nonpolluting, and low cost electricity generation, cadmium and cadmium compounds have well known toxicological properties that demand consideration of nondispersive end-of-life module and manufacturing scrap disposal. With the support of a United States Department of Energy Small Business Innovation Research grant, Solar Cells Inc. has designed and installed a CdTe PV recycling pilot plant capable of processing 2 MW per shift per year of 60×120 cm modules, rated nominally at 50 W p. The primary process outputs are clean, salable glass cullet, cadmium carbonate, electrolytically refined tellurium and clean ethylene-vinyl acetate. Cost modeling shows these recovered materials are achieved at a processing cost of US $0.04 per watt or less
Published in:
Photovoltaic Specialists Conference, 1997., Conference Record of the Twenty-Sixth IEEE
Date of Conference: 29 Sep-3 Oct 1997