Oct 15, 2012 - US concentrating photovoltaics (CPV) firm Solar Junction Corp said Monday its multi-junction CPV solar cells, which are ready for commercial production, had set an efficiency record of 44% at 947 suns concentration.
The previous record of 43.5% measured at 418 suns was also held by Solar Junction’s cells. It was set in April 2011. Both records were confirmed by the independent US National Renewable Energy Laboratory (NREL).
The company said its new record was yet another proof of the superiority of its A-SLAM materials, which help deliver the most efficient conversion of sunlight into electricity. Solar Junction’s CPV technology is based on the concentration of sunlight onto small multi-junction cells that the company manufactures at its San Jose, California facility.
Additionally, Solar Junction said it was in the process of commissioning a plant for the fabrication of six-inch (15.24 cm) cells, partially funded by the US Department of Energy’s SUNPATH contract. Shipments from the new facility in the Silicon Valley are expected to kick off in the first quarter of 2013.