what can limit the performance of PV systems? One of the possible answers is “Dust” or other forms of soiling that accumulate on the glass surface of solar panels, obscuring light from the cells within. Driven by location and weather, soiling is worst in deserts like the US Southwest, in the presence of air pollution, and on solar arrays that have flat tilt designs.
According to CleanTechnica, whether the soiling occurs on residential rooftop systems, on commercial or industrial PV installations, or on utility-scale arrays, the effect can be surprisingly serious. Moderate soiling that results when panels are not cleaned monthly is generally calculated to result in a 30% energy yield loss per year, while longer term, cumulative soiling cementation of dust materials can result in a 100% loss of yield.
Indeed, soiling is a complex solar industry problem that increases uncertainty and drives up the cost of solar energy through lost production, increased maintenance costs, and thus higher financing rates, according to an analysis by the US National Renewable Energy Laboratory (NREL).
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Source:http://ow.ly/gzZn50uYr14
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Date: Jul 12, 2019 @ 09:20
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