What if next generation solar modules could combine ultra high efficiency, lower thermal losses, and improved reliability in a single architecture?
TCL Zhonghuan has introduced its next generation back contact solar module platform at its Tianjin manufacturing base, marking the company’s move toward large scale commercial production of BC photovoltaic technology. The newly launched N type BC modules deliver up to 25.2% module efficiency and a maximum power output of 680W, targeting utility scale, commercial, industrial, and distributed solar installations.
The platform combines proprietary back contact cell architecture with the company’s in house silicon wafer technology. Unlike conventional front contact designs, the back contact structure places electrical connections behind the cell surface, reducing shading losses and improving light absorption. The architecture is supported by proprietary low carbon wafer technology featuring minority carrier lifetimes exceeding 1,000 microseconds, enabling cell conversion efficiencies above 27% at the cell level.
The modules are designed to maintain stable performance under varying environmental conditions. According to the company, the system achieves a temperature coefficient as low as –0.26%/°C while incorporating a hotspot mitigation design capable of reducing hotspot temperatures by up to 50°C compared with conventional modules. The platform also demonstrates weak light response performance above 95%, supporting energy generation during low irradiance conditions.
To improve long term reliability, the modules include enhanced resistance against PID degradation, partial shading, dust accumulation, and fire related risks. The system further achieves bifaciality of 80% ±5%, enabling higher rear side energy harvesting for improved overall energy yield.
The modules are backed by a 30 year linear power warranty and a 15 year product warranty. Their busbar free front surface creates a uniform all black appearance suited for building integrated photovoltaics and premium rooftop installations while remaining compatible with large utility scale projects.
The launch reflects the growing industry shift toward higher efficiency N type and back contact photovoltaic architectures aimed at reducing levelized cost of energy while improving long term system performance.
Click here for the official announcement.
