The status of development of CdTe/CdS devices and modules at Photon Energy, Inc. includes attaining milestones such as: * Efficiencies of 12.7% have been achieved on small area devices. * Modules with areas of 929 cm2have achieved over 8% aperture area efficiency (active area up to approximately 10%).* Modules with areas of 3716 cm2have been tested at NREL at 23.1 watts (21.3 watts, normalized via a pyranometer). * Life testing at NREL (and PEI) shows no inherent stability problem within the measurement error.