Trinasolar unveils i-TOPCon Ultra at Korea’s Green Energy Expo

China headquartered, Trinasolar has unveiled its i-TOPCon Ultra solar technology at Korea’s Green Energy Expo in Daegu. These new modules achieved a TOPCon record with 26.58% laboratory cell efficiency, surpassing the previous 26.5% mark held by Germany’s Fraunhofer Institute. The technology integrates double-sided full passivation, ultra-thin busbars, and reduced optical losses, resulting in up to 1% higher efficiency and up to 40 W more module power. The Vertex N NEG19RC.20 module, for commercial and industrial use, reaches 645 W output and 23.9% efficiency, while the utility-scale NEG21C.20 version delivers 740 W and 23.8% efficiency. Trinasolar’s modules are tested for extreme weather resilience, including –43 °C temperatures, 35 mm hail, hurricane-force winds, and high-salinity environments, certified by TÜV Rheinland.