Trina Solar improves efficiency of 210 mm PERC solar cell by 0.5%

Chinese module maker Trina Solar has announced to have achieved a power conversion efficiency of 23.53% for a monocrystalline p-type solar cell based on 66 PERC cells with a size of 210×210 mm.

The result was confirmed by China's National Center of Supervision and Inspection on Solar Photovoltaic Product Quality (CPVT).

“We are proud to announce the latest achievements developed by our technical team, to realize the batch efficiency over 23.5% for larger-area 210mm high-efficiency PERC cells in production,” said Yifeng Chen, head of the company's high efficiency cell and module R&D center. “This demonstrated that 210 cells can achieve very high efficiency in reality. Our technical team will continue to focus on transfer innovative technologies to manufacturing to consolidate our technology leadership in high efficiency cells mass production.”

The company improved by 0.5% the efficiency achieved for the cell in early July. That result was certified by  Germany's standards bodies TÜV Rheinland and TÜV Nord. At the time, Trina said its scientists developed a new Multi-Musbar (MBB) technology to improve optical shading, and developed a new hybrid soldering technology to minimize the gap between cells, without providing further details.

*The article was updated on August 30 to reflect that the new record efficiency was achieved for a solar cell, and not for a module, as we previously reported.