11\u2011Year Performance Degradation of PV Systems in Desert Climates 核心 · 已核验

doi:10.21227/rcfd-9k40

"This study investigates the performance evolution and failure mechanisms of a multi-crystalline silicon PV system installed in Doha, Qatar, after 11 years of outdoor exposure in a desert climate. A long-term outdoor PV system performance showed a drop in the performance ratio of 1.81 %\/year. Indoor current-voltage measurements after field exposure showed an average degradation rate of 3.5 %\/year. The drop in Pmax is primarily attributed to a drop in the Voc. Snail trails, micro-cracks, defective bypass diodes, and encapsulant degradation are the most common failures observed. The electroluminescence imaging showed micro-cracks that affect the maximum power, increase series resistance, and decrease shunt resistance. The ultraviolet fluorescent images show degradation patterns of the encapsulant. The findings demonstrate how prolonged exposure to high irradiance, elevated temperature, and severe soiling conditions can accelerate PV module degradation in desert environments. By combining long-term operational monitoring with detailed module-level diagnostics, this study provides insights into dominant failure modes affecting PV system reliability. It highlights the importance of preventive maintenance and module design optimization for solar installations in desert regions."

落地页

https://ieee-dataport.org/documents/11-year-performance-degradation-pv-systems-desert-climates

许可证

CC-BY-4.0 (判读置信:inferred)

国内可访问性

国内直连:可达 (2026-07-11 检测) 代理通道:可达 (2026-07-11 检测)
检测口径:lychee 双通道单轮探测;「直连超时」表示检测窗口内未完成,系慢或不稳定证据,不构成封锁证据。

PHM 任务

degradation_trend_prediction fault_diagnosis

传感器

运行工况