How the world's sunniest region tackles solar module soiling, cleaning

Researchers studying PV panels in Chile's hyper-arid Atacama Desert found that cemented soiling can cause annual energy losses of up to 9.8%. Their combined field and laboratory work shows that dry cleaning leaves residue that accelerates future cementation, making wet cleaning the more effective long-term strategy despite higher costs and scarce water.An international research team has investigated the formation of cemented soiling on PV panels operating under the hyper-arid conditions of the region with the world's highest solar radiation levels, the Atacama Desert in northern Chile, and has ...

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