I am on the mission to deploy an army of drones in the fight against global warming:
I have invented a robotic arm for a drone. The arm is mounted below the drone. Once it detects an object with a distance sensor and then cleans the surface. The software saves a whole drive, lowering the payload and leading to longer flight times.
As legal and technical challenges are the lowest with solar farms (simple, reoccurring geometries), we start out in this field. Later, even buildings or domestic sites can be targeted.
We save tons of precious water that is wasted today in the cleaning process and many life's that are endangered in high heat, high voltage and high altitude environments, today.
I have a prototype at my table.