The Impact of Dust on the Performance and Efficiency of Solar Panels

Abstract

The accumulation of dust on solar panels, commonly referred to as soiling, is a critical factor that reduces solar energy conversion efficiency. Dust deposition blocks incident solar radiation, increases panel surface temperature, and degrades the optical properties of the glass cover, all of which contribute to performance losses. Previous research has shown that dust-related efficiency reductions can range from 5% to 40%, depending on dust type, particle size, and environmental conditions. Such losses not only decrease the overall energy output but also result in significant economic impacts, particularly in large-scale solar power plants. To address this challenge, various mitigation approaches such as manual cleaning, automated cleaning systems, surface coatings, and design optimization have been proposed to minimize the effect of dust and ensure sustainable energy production.