Ecoppia robots clean desert solar panels nightly without water

Israeli company Ecoppia has deployed autonomous robots that clean utility-scale solar panels at night using microfiber brushes and no water since 2013. The company claims its fleet has saved about 9.8 billion liters of water, while dust soiling can cut output by up to 50% in parts of the Middle East.

• Ecoppia robots clean panels nightly with rotating microfiber brushes, no water
• Company reports roughly 9.8 billion liters of water saved since 2013
• Dust soiling can cut solar output by up to 50% in the Middle East
• MIT lab test recovered up to 95% of soiling losses with electrostatic cleaning