UV Tests Exaggerate Degradation in TOPCon Modules: Fraunhofer ISE

The institute claims that degradation in such tests is significantly higher than actual performance reduction

April 17, 2025

/ Tina Freese
/ Solar, Technology
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The Fraunhofer Institute for Solar Energy Systems ISE (Fraunhofer ISE) announced that its latest research has found that ultraviolet (UV) tests rate degradation of tunnel oxide passivated contact (TOPCon) silicon solar modules significantly higher than performance reduction in real-life conditions.

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Tina Freese

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