On May 19, TCL Zhonghuan announced that its new generation of high-efficiency BC (Back Contact) modules officially rolled off the production line at its Tianjin base. This milestone marks a new phase for the company's BC technology, transitioning from R&D leadership into large-scale mass production.
Built upon the core competitive barrier of a "dual-native" approach—combining native technology and native materials—these newly produced modules boast a maximum efficiency of 25.2% and a peak power output of 680W. They are designed to comprehensively cover applications across utility-scale ground power plants, as well as commercial and industrial scenarios.
Reportedly, this batch of mass-produced products exclusively utilizes TCL Zhonghuan's in-house manufactured silicon wafers. The company's BC-specific silicon wafer series adopts the TS002 high-efficiency, low-carbon silicon wafer technology. Featuring a minority carrier lifetime exceeding 1000μs, these wafers are optimally suited to meet the high conversion efficiency demands of BC solar cells. Furthermore, regarding the BC cells themselves, TCL Zhonghuan has implemented a brand-new, cell-level anti-hot spot design. This innovation effectively lowers the hot spot temperature by 50°C compared to conventional modules, while maintaining a low-light performance coefficient of over 95%.
Looking at the product specifications, the mass-produced conversion efficiency of this module series reaches 25.2%, with a maximum power output of 680W, successfully matching the standards of current mainstream BC module products in the market. Simultaneously, the bifaciality of the modules has been increased to 80% ± 5%, further enhancing the backside power generation yield.
In terms of reliability, the product's full-lifecycle PID (Potential Induced Degradation) is meticulously controlled to within 1%. Moreover, the modules have successfully passed certifications from authoritative institutions, including TÜV Rheinland and the National Photovoltaic Quality Inspection Center.
Source：EnergyTrend