GCL Optoelectronics, a unit of GCL Group, achieved a 27.34% power conversion efficiency for its 2,050 cm² perovskite-silicon tandem solar module, as certified by China’s Academy of Metrology in October 2024. This achievement marks a significant step in commercial-scale perovskite technology deployment. The 27.34% certification represents an improvement from the 26.36% efficiency reported in April 2024, showcasing the ongoing advancement in tandem technology at the module level rather than just in laboratory cell tests. In October 2024, GCL’s 1m×2m single-junction perovskite module (19.04% efficiency) successfully passed IEC 61215 and IEC 61730 tests conducted by TÜV Rheinland. These industry-standard tests include … Continue reading GCL Achieves 27.34% Efficiency in Perovskite-Silicon Tandem Solar Modules, Eyes $0.075/W Production Cost