multi-crystalline module

First Solar set a world record for cadmium-telluride (CdTe) PV module conversion efficiency, achieving 18.6 percent aperture efficiency for an advanced full size module. For the first time ever, First Solar has demonstrated a record module that is more efficient than the best multi-crystalline module recorded. The record has been measured and certified by the U.S. Department of Energy's National Renewable Energy Laboratory (NREL).