Efficiency of dense-array CPVT module with front-side interconnected cells

Dense array concentrating photovoltaic collectors can be used as cogeneration systems, CPV and thermal (CPVT), producing both electricity and heat, leading to high overall system efficiency. Triple-junction metamorphic III - V cells with front side interconnections were developed to minimize the spacing among the cells and maximize the active area that intercepts the concentrated radiation. Modules with front interconnected cells and active cooling were fabricated and tested outdoors in a parabolic dish under a range of temperatures. Performance of the modules and the dependence on operating temperatures are reported.