Japanese electronics giant Sharp Corporation has launched a series of PERC monocrystalline photovoltaic modules based on half-cut cell technology. There are three modules in this series, all of which use five grid line modules, which are 330W, 385W and 395W respectively. Sharp claims that compared with competitors, the yield rate of Sharp's half-chip modules has increased by 3%.
Among these three components, the smallest power is 330W, which uses 120 batteries, the battery conversion efficiency is 19.5%, and the entire module is 19.5 kg, which is suitable for industrial and commercial application scenarios. The other two are composed of 144 cells, which are more suitable for large-scale roof or ground photovoltaic power stations.
According to Sharp, compared with standard components, half-cut components have lower operating temperatures, which reduces the probability of hot spots and improves the reliability and safety of the components. In terms of shadow occlusion, due to the unique design, it has better anti-occlusion performance than conventional components. "Even if the upper half of the module is covered by shadows, the other battery of the half-cut module can still produce 50% of the power."
As far as the recent fire of heterojunction battery technology is concerned, according to the certification of the Japan Electrical Safety and Environmental Technology Laboratory, Sharp used heterojunction and back contact technology in 2018 to make the battery break through 25.09% conversion efficiency.