Israeli innovator Ecoppia has developed a solar powered robot that cleans PV panels without water. The microfiber technology has been in use for a year now at Ketura Sun in the Arava desert and has increased the energy efficiency by around 5% every month. Conventional cleaning methods involve the use of water and man power, while the robots use no additional energy, no water and clean the panels every evening at dusk.

For more information about Ecoppia and the E4 robot, please visit their website http://www.ecoppia.com