Cleaning solar panels manually is not always an easy task. The HELIOS Solar Panel Cleaning Service aims to address that. It comes with a drone and robot to get the job done. The drone simply places the robot on the solar panels. The HELIOS Cleaning Bot has a lightweight design and can move on inclined surfaces. It navigates autonomously and uses a brush and vacuum for effective cleaning.
The drone can detect solar panels to determine the drop off location. It can land on inclined surfaces. After successful landing the cleaning robot detaches from the drone. More info is available here.