Athough i'm not that worried about Insight's solar panels that i didn't sleep well because of that, this question got me thinking !
The Mars Helicopter Scout is a planned robotic helicopter that will scout interesting targets and plan the best driving route for future Mars rovers.
A demonstration model has been approved to fly on the Mars 2020 mission, its payload being a high resolution camera and a communication system to relay data to the rover. The helicopter has solar panels to recharge its batteries which can produce a power of 220 W.
Could not be the cleaning of solar panels also be an important job for such a helicopter scout ?
Can it be calculated roughly if that power of 220 W is enough to remove the dust ?
It would only have to land on and lift off from the horizontal laying solar panels carefully.