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VDE-AR-E 2126-4-100 Anwendungsregel:2021-11

* German Language Version *

Requirements for the implementation and evaluation of a test for Light and Elevated Temperature Induced Degradation (LETID) of photovoltaic cells and modules

Class/Status: Anwendungsregel, valid
Released: 2021-11
VDE Art. No.: 0100643

This VDE application guide describes basic requirements for a test method for the characterization of solar cells or modules for “Light and elevated Temperature Induced Degradation” (LeTID). The test method is applicable to all silicon-based PV modules and cells. It is particularly relevant for Passivated Emitter and Rear Contact (PERC) cells and modules as they exhibit an increased LeTID sensitivity.