Why Clean?
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Why Clean?
Why Clean Solar Panels?
Because panels can quickly lose 10%, 20% or even more than 30% of their efficiency if they are not cleaned regularly.
As a solar panel gets dirty, energy generation is significantly reduced. Solar arrays 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 such as industrial particulates from coal, gas and cement production, from agricultural waste and buring emissions, and from vehicle emissions.
This combination of climate and pollutants layers down fine, granular deposits that coat the surface of your solar panels. The 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 total system-failure.
Dirt will just accumulate over time.
Often panels are installed almost flat or only slightly angled, which decreases any efffect 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 the panel surfaces, and can create "hotspots" that may lead to panel failure if not remedied.
What Cycle-Time Is Recommended?
Solar Clean Asia recommends automated cleaning of solar panels at least 3 times a year, and more in heavily-polluted environments (for instance, in oil, gas, petrochemical, cement plants, etc.). This will protect and maintain the solar array, and ensure you make the full return on your expensive solar investment.