Trina Solar says new certified results in perovskite crystalline silicon tandem cells and modules demonstrate progress toward next-generation industrial-scale PV.
Trina Solar said its researchers have achieved new certified benchmarks in perovskite-crystalline silicon tandem solar cell efficiency and module power, which the company described as world records for industrial-sized devices.
The company said an industrial-scale tandem solar cell with a half-cut format of 210 mm achieved a certified energy conversion efficiency of 32.6%, while a standard-sized tandem module integrating the cells delivered a peak power of 865 W. Both results have been independently verified by European testing authorities and represent world record performance for industrially relevant formats.
The tandem cell was jointly developed with China’s Huairou Laboratory and certified by the Fraunhofer Institute for Solar Energy Systems CalLab, while the corresponding module, with an area of 3.1 square meters, tailored to regular utility-scale designs, was certified by TÜV SÜD.
Trina said Huairou Laboratory contributed to advances in perovskite absorber and functional layer materials as the company focused on process integration, large-area manufacturing and compatibility with industrial production lines. The work was conducted within Trina’s Photovoltaic Science and Technology National Key Laboratory.
“We are pleased to announce two new world records in perovskite-crystalline silicon tandem solar technology through effective collaboration.” said dr. Yifeng Chen, vice president of Trina Solar. He added that the results “mark a milestone for the next generation of high-efficiency solar photovoltaics” and demonstrate the commercial potential of tandem architectures beyond laboratory prototypes.
Trina Solar says the latest results build on a series of tandem milestones reported over the past two years, including certified tandem modules exceeding 800W and tandem cell efficiencies exceeding 31% on industrial wafer sizes. The company claimed it has now created or broken global benchmarks in solar cell efficiency and solar panel power 37 times.
As crystalline silicon technologies such as tunnel oxide passivated contact (TOPCon) and heterojunction approach practical efficiency limits, tandem architectures combining perovskite and silicon are widely seen as the most viable route to further performance gains. Trina said demonstrating record results on industrial formats is intended to support eventual commercial deployment.
In April, rival Longi achieved a certified energy conversion efficiency of 34.85% for a two-terminal perovskite-silicon tandem solar cell certified by the US National Renewable Energy Laboratory. The company described the result as a global benchmark for this tandem cell format, highlighting advances in next-generation high-efficiency solar photovoltaics.
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