Three Israeli solar panel cleaning startups have been reported previously in this newsletter. Bladeranger, Ecoppia, and NaanDanJain. Now there’s a fourth – Airtouch Solar, which uses an air blower to lift and push the dust forward horizontally along arrays of panels. The dust falls into the gaps between clusters.
https://www.israel21c.org/robots-that-clean-solar-panels-without-water/