Swift Coat awarded $1 million to commercialize its self-cleaning PV coating

Photo: A patterned film of nanoparticles used to attract water droplets and keep surfaces clean made using Aerosol Impact-Driven Assembly, Swift Coat’s proprietary nanoparticle coating technology. The company is developing products for the solar and architectural glass markets, and plans to expand to markets spanning from semiconductors to textiles. Photo by Jessica ochreiter, Arizona State University.

Swift Coat Inc., an Arizona State University spin-out company specializing in nano-coatings, was selected to receive a $1 million award from the U.S. Department of Energy Solar Energy Technologies Office (SETO) to advance innovations in solar manufacturing. This project aims to reduce efficiency losses in solar panels due to soiling, the buildup of dirt on the panel’s surface that blocks sunlight.

“Everyone has seen how dirty their windows can get after a dust storm, but few realize the same happens to their solar panels.” says Peter Firth, Swift Coat CEO. “This buildup of dirt can reduce the power output of panels by up to 30%, and, if you aren’t the type to climb up on your roof and clean them, this loss of efficiency can persist for months.”

Swift Coat’s solution to this problem is a thin coating composed of nanoparticles.

“The special nanoparticles in our coating perform a chemical reaction powered by ultraviolet sunlight that actively breaks down dirt, keeping the panel clean and operating at optimal efficiency,” explains Dr. Shannon Poges, Ph.D., Swift Coat’s Senior Engineer.

Partners on the award include a large, US-based glass manufacturer and the National Renewable Energy Laboratory, a premier solar research institution in the US.

“Soiling can be just as big a problem for utility-scale solar installations as it is for homeowners,” says Swift Coat CTO and Associate Professor at Arizona State University, Dr. Zachary Holman, Ph.D. “These partnerships will help us to rapidly deploy the technology across the country, putting money back into your pockets in the form of a reduced electricity bill, whether you own panels or not.”

Swift Coat was selected as a part of the SETO Fiscal Year 2019 funding program, an effort to invest in new projects that will lower solar electricity costs while working to boost solar manufacturing, reduce red tape, and make solar systems more resilient to cyberattack. Swift Coat is one of several manufacturing-innovation projects with early-stage product ideas that can lower solar costs and rapidly achieve commercialization, with an emphasis on projects that contribute to a strong U.S. solar manufacturing sector.

This award will help Swift Coat grow towards commercialization of its coating technology, which has demonstrated applicability in energy, defense and building-material industries.

-- Solar Builder magazine

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