Mcghee Investor Presentation

Cu(In Ga₁x)Se₂ • World record efficiency = 20.4 %. • Many companies are evaporating, printing, sputtering and electrodepositing it. • Some are manufacturing ~30-50 MW/yr. • Handling a 4-element compound is tough. 1-x ZnO, ITO - 2500Å CdS - 700Å CIGS 1-2.5μm Mo -0.5-1μm Glass, Metal Foil, Plastics Shell Solar, CA Global Solar Energy, AZ Energy Photovoltaics, NJ ISET, CA ITN/ES, CO NanoSolar Inc., CA DayStar Technologies, NY/CA MiaSole, CA HelioVolt, Tx Solyndra, CA SoloPower, CA Wurth Solar, Germany SULFURCELL, Germany CIS Solartechnik, Germany Solarion, Germany Solibro, Sweden CISEL, France Showa Shell, Japan Honda, Japan

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