China’s Trina Solar achieved a world record 25.44% conversion efficiency for its n-type passivated heterojunction (HJT) solar modules, certified by Fraunhofer CalLab. HJT technology, which improves efficiency by covering cell defects, is seen as a potential next-generation solar solution. Trina plans to expand research in passivated technology, while HJT currently represents a small but growing market segment.