I wonder if the weight of solar panels would prevent them being mounted on a wheeled device like the rolling irrigation systems used on many farms? Those are pretty robust and don't break frequently or require much maintenance; in the case of solar panels, they wouldn't even need to move frequently (so no need for permanent motors on them; you could just hook them to tractors or trucks and tow them out of the way). Though, there would need to be a lot more of them, and moving a bunch of them for harvest time or other stuff that required them out of the way would take a lot of time.
