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This paper examines the dust accumulation impact on the performance of photovoltaic panels in the Algerian region of El-Oued, where two similar photovoltaic panels were analyzed: a clean reference photovoltaic panel (PVr) and a dirty targeted photovoltaic panel (PVt) with 14.5 g/m² of dust. The data was collected on May 4 th and 13 th , 2022, through experimental works and numerical validation. The results show that dust significantly reduces the PV performance. On May 4 th , 2022, the PVr produced 330.89 Wh, compared to 216.72 Wh for the PVt, with a difference of 34.65%. On May 13 th , 2022, PVr generated 414.01 Wh, while PVt produced 271.16 Wh, with a difference of 34.67%. In terms of PV power generation, PVr reached maximum values of 52.82 W and 66.28 W on May 4 th and 13 th , respectively, compared to 34.5 W and 43.29 W for PVt. The PVr performance varied between 5.85% and 6.56%, while that of PVt was limited to 3.82% and 4.29%. These results highlight the importance of keeping photovoltaic panels clean to ensure optimal energy production, especially in desert environments like El-Oued,. Moreover, the study confirms that regular panel maintenance is essential to minimize power reduction due to dust and guarantee maximum panel efficiency.

• dust accumulation
• photovoltaic degradation
• solar panel cleaning
• desert environment
• El Oued
• solar power generation

• Solar Thermal and Photovoltaic Systems
• Photovoltaic System Optimization Techniques
• Solar Radiation and Photovoltaics
• dust accumulation
• photovoltaic degradation
• solar panel cleaning
• desert environment
• El Oued
• solar power generation
• Renewable Energy, Sustainability and the Environment
• Artificial Intelligence
• Energy
• Computer Science