The result, which represents a world record for the bifacial technology, was verified by German certification body TÜV Rheinland.
The post Tongwei claims record-breaking 93.07% bifaciality factor for 770 W solar module appeared first on pv magazine Global.
Source
https://www.pv-magazine.com/2026/07/17/tongwei-claims-record-breaking-93-07-bifaciality-factor-for-770-w-solar-module/Document officiel chez le régulateur. Citez toujours cette URL — et non la page de détail Vantage — dans les preuves de conformité.