Trina Solar, a Chinese manufacturer of solar modules, has successfully achieved a power conversion efficiency of 25.9% for an industrial bifacial tunnel oxide passivated contact (i-TOPCon) solar cell.
The Institute for Solar Energy Research in Hamelin (ISFH CalTec) in Germany has verified the cell efficiency measurement, which pertains to an industrial large-area 210 × 182mm² n-type i-TOPCon cell. Trina Solar announced that this achievement establishes a new efficiency record for this specific type of solar cell.
The solar cell developed by Trina Solar features a rectangular wafer design that utilizes an n-type phosphorus-doped Cz silicon wafer. This specific type of wafer is renowned for its extended minority carrier lifetime, which plays a significant role in enhancing the overall performance of the solar cell.
Chen Yifeng, the Vice President of Trina Solar, expressed great delight in announcing the remarkable accomplishment of their research team. This achievement not only establishes a new milestone for large-area TOPCon cells but also surpasses the previous world record for n-type TOPCon cells held by Fraunhofer ISE since 2017.
Just a few months after achieving a maximum power output of 740.6W for an i-TOPCon module, Trina Solar has now set a new record for i-TOPCon solar cells. The power output of the module was officially verified by TÜV SÜD, a renowned German certification firm.
As the company continues to enhance the efficiency of its solar cells and boost the power output of its i-TOPCon technology,
Trina Solar kicked off the year by introducing a new i-TOPCon module specifically designed for the commercial and industrial (C&I) rooftop market. This move demonstrates the company’s commitment to expanding its presence in the distributed solar sector while concurrently conducting research on cell efficiency. The NEG18R.28 Vertex S+505W dual-glass module, measuring 1,961mm x 1,134mm and weighing 23.5kg, boasts an impressive module output of up to 505W+ and achieves an efficiency rate of 22.7%.
Trina Solar delivers 1GW of Vertex modules
In addition, Trina Solar has made an announcement regarding its contribution to the Jinsha River plant in China, where it supplied over 1GW of its Vertex N 720W series modules.
As the construction of the project progresses, the modules are anticipated to be finalized by the conclusion of this year.
The project stands out for its elevated location, situated between 4,200 and 4,800 meters above sea level. It is identified as the largest single-scale solar grazing project under construction, as stated by the Chinese solar manufacturer.
