Recently, the 1500V monocrystalline and polycrystalline PV modules launched by Jiangsu Seraphim Solar System Co., Ltd. (hereinafter referred to as “Seraphim”) successfully passed the certification tests by TÜV SÜD Group (hereinafter referred to as “TÜV SÜD”). With the modules following the technical development trend of the whole PV power generation system, the levelized cost of