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DNV GL, a world-renowned independent and certified third-party testing laboratory conducted accelerated stress testing at and beyond the IEC 61215 industry standard and found that power degradation of modules supplied to SolarCity by its key external suppliers is as much as 35% lower than for a comparable industry-wide selection of non-SolarCity modules, which are typically warranted for 25 years.
For More Information PlS.Go Through Below Attached Documents.
