Israel’s Ecoppia is to install its water-free, robotic solar panel cleaning system at the 10,000-hectare 2,255 MW Bhadla Solar Park being constructed in Rajasthan, India. Dust storms reduce solar panel efficiency by 40%.  The Eccopia system will also save over 1.5 billion liters of water.

http://www.jpost.com/Business-and-Innovation/Environment/Israeli-robotic-PV-cleaning-system-commissioned-at-mega-solar-park-in-India-475064