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March 23, 2026

Degradation of PV Systems Header

Degradation of PV systems: Actually much lower than long assumed

A recent long-term study by the BTU Cottbus shows that the actual power output degradation of PV systems—at around 0.6% per year—is significantly lower than is often assumed. For operators and investors, this means higher electricity yields over the entire lifespan of the system and noticeably better profitability for their projects.

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