From pv magazine USA
Sol Clarity is developing an electrodynamic screen (EDS), which charges dust particles with a static charge and then uses an electromagnetic wave to sweep them off the solar panels.
The company is currently seeking investment partners to help scale its operations and is testing the technology on a community solar project in the northeastern United States.
In the video above, the dust can be seen suddenly falling off the panels when the electromagnetic wave is engaged.
The US company has tested its EDS material at a community solar facility owned by developer Nexamp. More recent tests were conducted at a facility in Chile, and next year, it plans to implement the technology at a power plant owned by Engie in California.
The startup has received support from two state-funded groups, Mass Ventures and the Massachusetts Clean Energy Center (MassCEC).
At the Nexamp site, Sol Clarity installed 11 full-scale solar panels equipped with EDS systems, complete with power boxes and intricate circuitry.
According to a 2018 paper, Sol Clarity expects the EDS system to operate for one to two minutes per day. The paper estimates that approximately 500 solar modules could be cleaned each day with just 1 kWh of electricity.
The product, which can be installed in the factory or retrofitted in the field, consists of either two or four layers, plus a power box. The factory-installed system includes an optically clear adhesive layer, plus a dielectric layer that contains the printed electrodes. The retrofit version adds two additional layers that separate the printed electrodes from the top dielectric layer.
Another EDS company, CleanFizz, has conducted tests in Saudi Arabia, showing that its product can remove more than 95% of soiling losses from solar panels. It recently announced the closure of a $1 million investment round at the end of 2023 and is now seeking $50 million to build a 300 MW manufacturing facility in Switzerland.
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In the video demo it got stuck on the bottom edge, hope it’s fixed! Reminds of self clean tech by a N’l Lab (USA,) hope they can do bird deterrence and other functions…projection touchscreen at night, dunno.
I’m an up coming solar engineer interested in your new found innovation method of cleaning solar panels without water. I will need the laters update for study. Thanks