Enea researchers at the Portici Research Center (Naples) have patented a low-cost process that makes the mirrors of solar systems self-cleaning. Process modifies the wettability of the mirrors, i.e.
the ability to come into contact with the water, preserving its optical properties and possibly performing a protective function with respect to erosion and corrosion. The invention is applicable in all those sectors, such as photovoltaic, anti-ice/frost and outdoor lighting, where a modulation of wettable combined with transparency and resistance to bad weather is required.