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Anti-Soiling Coatings

Keep your solar panels clean with our Anti-Soiling Coatings so that they can perform optimally for longer. Save costs and make less of an environmental impact.
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Boost the internal rates of return (IRR) of your photovoltaic (PV) solar project

Our Anti-Soiling (AS) Coating for solar module glass boosts power output in dry, arid climates. It also increases the IRR of your project by keeping your cover glass cleaner –  while requiring less water, energy and labor to clean and maintain. 

Proven technology

Module glass treated with our Anti-Soiling Coating soils less quickly and is easier to clean. By reducing the soiling rate, the modules can maintain their optimal performance for longer, while reducing the number of cleaning cycles, as well as the amount of labor, and consumables needed to clean solar installations. 

Our Anti-Soiling Coating has the same anti-reflective properties as our industry-leading Anti-Reflective (AR) Coating which is proven to deliver a power gain of 3% as compared to uncoated glass (in flash tests). The coating is applied during glass production, as with our AR Coating.

Putting solar coatings to the test 

Extensive testing conducted with leading suppliers of automated cleaning equipment has proven that modules with AS-coated glass remained stable after more than 1,000 cleaning cycles – which equals roughly 20 years of bi-weekly cleaning. 

In fact, following tests at the TÜV SÜD installation in Dunhuang in China, the coating delivered an overall power gain of 4% compared to non-coated modules (and a 1% improvement on our standard AR Coating). 

The precise performance depends on the local environment and specific conditions. Which is why we are now working with our development partners to build on this performance – and of course we are happy to discuss the innovative benefits our AS coating could bring to your solar park. 

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