Reports first began to emerge of ultraviolet-induced degradation (UVID) as early as 2022, as a potential field reliability issue for some newer high-efficiency PV cell technologies - most notably, n-type tunnel oxide passivated contact (TOPCon) devices. RETC's "2024 PV Module Index Report" noted that roughly 40% of UVID test samples degraded by 5% or more, but also documented double-digit degradation rates in some mass-produced PV modules. While more recent UVID test results show signs of improvement, the 2026 annual report continues to document red flag results in roughly one in 12 PV module ...Den vollständigen Artikel lesen ...
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