Panasonic has set a new solar photovoltaic (PV) module conversion efficiency record of 23.8% at a research level. National Institute of Advanced Industrial Science and Technology (AIST) has verified this latest research.Sun Power’s previous world record of 22.8% conversion efficiency of PV module was broken by Panasonic with a full percentage point. Panasonic also holds another record for highest conversion efficiency of its crystalline-based solar cells at 25.6%.
Panasonic’s press release states: “Panasonic developed a unique silicon heterojunction structure composed of crystalline silicon substrate and amorphous silicon layers, and has continuously improved its photovoltaic module HIT using silicon heterojunction since the start of commercial production. This new record was achieved by further development of Panasonic‘s proprietary heterojunction technology for high-efficiency solar cells and modules adopting a back-contact solar cell structure.”