Concentrating photovoltaic collectors: Fabrication design

The Wattsun Corporation has developed a concept and prototype for a concentrating photovoltaic collector that has the potential for significant cost reductions over existing commercially-available systems. The concept uses small lens elements concentrating solar energy on small photovoltaic cells. Modules are less than one inch thick, containing lenses one-half inch square focusing on cells one-eight inch square. A previous report, NMRDI 2-74-4608, described principles, test results, and cost estimates. Experimentation designed to finalize materials selection and fabrication procedures are presented.