Solar Tech Showdown 2025: N-Type TOPCon vs HJT vs Perovskite Tandem – Which Will Power the Future?
As of mid-2025, commercial N-type TOPCon cells reach about 23–24% efficiency, with best mass-produced TOPCon modules at 23.8% and JinkoSolar reporting 26.4% cell efficiency in tests. Heterojunction (HJT) solar cells regularly reach 25%+ efficiency in production, with Longi reporting a 27.3% lab cell efficiency.