LONGi scores TÜV SÜD PID-p certificate for Hi-MO 9 & X10 modules

China-based LONGi has become the first company to receive TÜV SÜD’s PID-p certification for its Hi-MO 9 and Hi-MO X10 HPBC 2.0 modules, confirming superior anti-degradation performance.

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LONGi’s Hi-MO 9 and X10 modules have shown recoverable performance under UV exposure after PID-p stress in compliance tests.

LONGi’s Hi-MO 9 and X10 modules have shown recoverable performance under UV exposure after PID-p stress in compliance tests. Image Source: Longi

China headquartered solar technology company, Longi has become the first to receive TÜV SÜD’s PID-p (Potential Induced Degradation - Polarization) certification for its Hi-MO 9 and Hi-MO X10 HPBC 2.0 modules. Certified under PPP 58234A:2025 and IEC TS 62804-1 Ed2 (DTS) standards, the modules demonstrated strong resistance to polarization-induced performance loss under voltage, temperature, and light stress. The tests confirmed LONGi’s advancements in minimizing PID-p effects, validating the modules’ reliability in real-world conditions. 

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