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LONGi's[1] own news page says that on July 14, 2026 at its Solar and Energy Storage Innovation Conference it announced the ESTI-certified 35.5%; the PR Newswire release (Manila Times[4], dateline Shanghai, 16 July) and PV Tech[3] (16 July) repeat the claim and figure.On 14 July 2026 LONGi announced a crystalline silicon-perovskite tandem solar cell with 35.5% conversion efficiency, certified by the European Solar Test Installation. It beats the company's earlier 35.2% mark, itself listed in the 68th Solar Cell Efficiency Tables.
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