solar panel dust accumulation 4

https://alpha-wiki.win/index.php/How_a_High_Wind_Dust_Storm_Tests_Your_Phoenix_Home:_Lessons_from_Two_Category_5_Haboobs

Over time, dust and grime settle on solar panels, blocking sunlight and cutting energy output. In dry or windy areas, this buildup happens fast, sometimes reducing efficiency by 25% or more. Regular cleaning, especially after dry spells, helps keep them performing well.