Eco Factor: Self-dusting solar panels generate more electricity.
We’ve reported about the benefits of installing large-scale solar plants in the deserts. However, in addition to plenty of sunlight, the climate there is too dusty, which makes solar panels inefficient. Using water-based self-cleaning systems isn’t feasible because of the lack of freshwater in these areas. Researchers at the Boston University are now planning to use technology developed by NASA for use on Mars to produce self-cleaning solar panels for use on our planet.
The system involves placing a transparent, electrically sensitive material deposited on glass or a transparent plastic sheet that covers the panels. Onboard sensors monitor dust levels on the surface of the planes and when dust concentration reaches a critical level, an electric charge sends a dust-repelling wave cascading over the surface of the material, which lifts away dust off the screen’s edges.
The technology helps remove up to 90 percent of the dust deposited on the panels in just two minutes and requires a small amount of electricity, which too is generated by the solar panels.
Via: Gizmag
