Trina Solar's new THBC cell integrates existing technological advantages. Unlike the traditional TBC single high-temperature diffusion passivation method, it employs a hybrid high- and low-temperature passivation technology, strongly combining TOPCon's excellent passivation contact with HJT's efficient passivation capabilities. This is further integrated with a back-contact electrode structure design, ultimately setting a new efficiency record of 28.00%, making it the pinnacle and culmination of monocrystalline silicon cell technology. In product applications, the THBC module can achieve higher front-side efficiency while simultaneously offering superior power generation performance and more distinctive product aesthetics, optimally suited for the high-value distributed rooftop market, commanding a significant premium.

This breakthrough was achieved through long-term R&D accumulation and strategic investment in photovoltaic technology. Trina Solar is not only the current world record holder for TOPCon cell efficiency but also possesses over a decade of technological accumulation and layout in BC back-contact cells. Since 2014, it has set world records for BC cell/module conversion efficiency six times, demonstrating industry-leading R&D capabilities. The solar racing car "OSU-Model-S", developed by the Osaka Sangyo University (OSU) in Japan and powered by BC high-efficiency solar cells supplied by Trina Solar, has won multiple international solar car championships.

Notably, unlike traditional TBC back-contact cells, THBC is also suitable for mass production using thin silicon wafers (110-130 microns) and is highly compatible with current mainstream TOPCon production lines. Currently, Trina Solar is leveraging its established THBC pilot line to accelerate and lead the industrialization of THBC modules. It is projected that industry-standard medium-sized modules (2382mm*1134mm) can exceed 700W in power. It is reported that Trina Solar's next generation of products based on THBC technology will be released soon.

"In the future crystalline silicon era, Trina Solar will form a new leadership pattern in product technology driven by a 'TOPCon + THBC' dual-engine, mutually reinforcing approach." said Mr. Jifan Gao, Chairman of Trina Solar and Director of the State Key Laboratory of Photovoltaic Science and Technology. On one hand, this means tapping into the potential of TOPCon in over 85% of global bifacial power generation scenarios, driving continuous upgrades to Efficiency 3.0 or even 4.0, leveraging its comprehensive power generation advantages on both front and rear sides. On the other hand, it involves rapidly advancing the full industrialization of THBC in monofacial power generation scenarios, capitalizing on its superior front-side power performance to create value for customers.

By breaking the constraints of single-path development through its THBC structural reconfiguration technology, Trina Solar deeply integrates the existing multiple technological advantages of TOPCon, HJT, and BC. Not only has it been the first to cross the 28% cell efficiency threshold, but in the future, it will also integrate the multidimensional advantages of efficient power generation, industrial aesthetics, and green low-carbon aspects into this technological route's products, driving the industry's coordinated evolution towards higher efficiency and greater value.