A partnership between the Senai Institute of Innovation in Electrochemistry (ISI-EQ) and Energy Trade resulted in the development of a smart coating for photovoltaic panels.
The technology, with hydrophobic and self-cleaning properties, aims to mitigate losses caused by the accumulation of dirt, which, in some regions, can reduce energy generation by more than 30%.
Designed for spray application and low maintenance, the coating forms an ultra-thin film that prevents dust buildup on the modules. Its goal is to benefit everything from small residential systems to large solar plants, improving efficiency and reducing cleaning frequency.
According to laboratory tests, panels with the new coating maintained stable power generation, with losses of less than 4%, even under simulated dust exposure. "In the tests, the untreated panel dropped to 68% of its power, while the prototypes maintained near-ideal performance," explains Francyelle Calegari, a researcher at ISI-EQ.
“In simulated dust tests, the uncoated panel lost more than 30% of generation; with the coating, losses were below 4%, demonstrating the technology's potential to reduce operating costs.”
With the research phase complete, the solution is now moving on to field testing and the industrialization phase, led by Energy Trade. The company's CEO, Diego Filipe Jares, who also participated in the project, states: "We are transforming a recurring challenge for solar farms into an operational benefit."
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