IEC TS 62915
Retesting guidelines for modified PV modules
Articles
- Changed a Material: Does the Certificate Still Count? A Guide to the IEC TS 62915 Retesting SpecificationOnce a module holds IEC 61215 / IEC 61730 certificates, does the certificate still cover it after a new encapsulant, thinner glass, a different cell size or a higher system voltage? We explain IEC TS 62915:2023: its role, the 19-item change map, six general rules, typical examples, what changed in 2023, where things stand in 2026, and practical advice for engineers.