Trinasolar has achieved 30.6% efficiency for its perovskite-silicon tandem solar modules
Its 3.1 m² large-area module has also surpassed the previous record of 808 W set in March 2025, achieving 829 W
While the record efficiency claim is certified by Fraunhofer ISE, module output is backed by TÜV SÜD
Chinese solar PV manufacturer Trinasolar claims to have broken 2 world records with its latest perovskite-silicon tandem solar modules, achieving a record 30.6% conversion efficiency and a peak power output of 829 W using 210 mm large-size cells.
Germany’s Fraunhofer Institute for Solar Energy Research (Fraunhofer ISE) independently tested and certified the efficiency of the module developed by the company’s State Key Laboratory of Photovoltaic Science and Technology.
Trinasolar says the tandem modules developed in its laboratory-achieved the record efficiency on an area of 1,185 cm². This efficiency level is now included in Professor Martin Green-led Version 66 of the Solar Cell Efficiency Table, according to the company.
Additionally, the Chinese manufacturer has also reported reaching a peak power of 829 W for its large-area perovskite-silicon 2-terminal tandem cell module with a module area of 3.1m², breaching the 808 W it achieved in March 2025 (see China Solar PV News Snippets: Trinasolar Develops 800W Tandem Module & More).
Global testing, inspection, and certifying body TÜV SÜD has certified the claim for the module’s peak power output increase to 829W.
Without sharing too many details, Trinasolar explains that the improvement was a result of flexible low-sharing photoconductivity, material adaptive heterogenous connection technology, multi-scale full-spectrum photon management technology, and optoelectronic optimization to boost the efficiency of the tandem cells.
“This time, we took the lead in achieving a double breakthrough of 30% efficiency of laboratory stacking modules and 829W power of full-size large-area stacking modules, which means that this technology has gradually moved from a ‘laboratory miracle’ to an 'engineering reality',” said Chairman and CEO of Trinasolar and Director of the State Key Laboratory of Photovoltaic Science and Technology, Gao Jifan.
He added that this efficiency shows the advancement of this technology from the concept verification stage to large-scale application.
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