Dirty Panels Don’t Work As Well
Solar panels generate power by exposing solar cells to sunshine. The more sunlight that hits a panel, the more power is generated.
As a solar panel gets dirty, energy generation is reduced. Solar panels are installed to get maximum sunshine, which means they are also maximally exposed to both air pollution and natural particles. Dust, ash and pollen are layered onto solar panel surfaces by evaporating dew and daily sunshine. In addition there are daily deposits of man-made air pollutants from vehicle emissions, coal and gas production, and industrial particulates from urban and industrialized areas.
This combination of climate and pollutants layers down fine, granular deposits that coat the surface of your solar panels. This baked-on crust reduces power generation, and can cause overheating and panel “hotspots”. Left unchecked, the result is degradation of the solar panel coating, corrosion of the panel edges, and eventual panel – and even system – failure.
Often panels are installed almost flat or only slightly angled, which decreases any effect of rainwater running off. But even in areas where there is sporadic heavy rainfall, dirt will persist.
The energy production figures provided by solar panel manufacturers and installers are based on an optimal performance of clean solar panels. The build-up of dirt will adversely affect the panel’s ability to perform as predicted. Over time, the dirt clouds panel surfaces, and can create “hotspots” that may lead to panel failure if not remedied.
Because of the air pollution sources and pollen cycles in Houston, Safe Solar Clean recommends mechanized cleaning of solar panels 3 times every year. This will protect, maintain and ensure the full return on your investment.
