Chinese solar leader Trinasolar has achieved a groundbreaking 30.6% efficiency with its perovskite-silicon tandem module, as certified by the Fraunhofer Institute for Solar Energy Systems (ISE) in Germany. This marks the first time a solar company has crossed the 30% efficiency mark on a large-area tandem module (1185 cm²).
In addition to this milestone, Trina also set a new power output record of 829W on its 3.1 m² tandem module, surpassing its previous 808W record earlier this year.
At the SNEC 2025 event in Shanghai, Aiko Solar also reported a 24.4% module efficiency using back contact (BC) technology in its 660W Comet 2U modules, already deployed in Japan.
2025 has seen multiple breakthroughs in solar efficiency:
HZB & Humboldt University reached 24.6% efficiency with a CIGS-perovskite tandem cell.
Risen Energy posted 30.99% efficiency with a HJT-perovskite tandem cell.
Trinasolar also set a 25.44% efficiency record with its TOPAS HJT PV module earlier this year.
These milestones reflect the rapid pace of solar innovation — bringing high-efficiency, next-gen technologies closer to global deployment.
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