Seems like any sort of solar panel on the ground is going to be prone to get nasty stuff on it. I guess they might just have them at an angle, then trust the r

Seems like any sort of solar panel on the ground is going to be prone to get nasty stuff on it. I guess they might just have them at an angle, then trust the rain provide some light cleaning, while a street/rail-cleaner could go by for more thorough cleanings periodically? I mean, I dunno what exactly their strategy is, but I'm assuming that they're not counting on a road to not get dirty. Cars leave rubber from their tires, drip oil, drop trash, etc..