Trina Solar has achieved a power conversion efficiency of 28.0% for its new TOPCon-compatible hybrid back-contact solar cell, certified by Germany's ISFH. The THBC technology combines TOPCon passivated-contact capability, HJT-style passivation advantages, and a back-contact electrode structure, setting a new benchmark for large-area crystalline silicon cells. This innovation is compatible with thin wafers and current TOPCon production lines, potentially reducing commercialization costs. Trina Solar plans to release new THBC-based products and has mass-production plans in place, signaling a significant advancement in solar technology for climate solutions.