Can dirty panels produce less solar?

Tampa Bay Solar03 Nov, 2025Technology

You install solar panels and see significant savings. However, power then starts dropping for no apparent reason. Most of the time, it’s just dirt and dust blocking efficiency. Solar panels function like windows, designed to capture maximum sunlight; however, accumulated dirt, dust, bird droppings, and pollution create barriers between the sunshine and electricity generation. According to Popular Mechanics, research demonstrates that solar panels in heavily polluted environments can experience a 50% efficiency boost after cleaning, with some installations seeing total efficiency drops exceeding 35% when dirt and atmospheric pollution combine forces. Read more...