I'm surprised to hear that these don't have built in heaters for de-icing. If you drive through the great plains states, you'll pass hundreds of these going fa

I'm surprised to hear that these don't have built in heaters for de-icing. If you drive through the great plains states, you'll pass hundreds of these going far as the eye can see. They can't require that much ongoing maintenance, because it would be untenable to do so at that scale. I get that these are different designs, but the fundamental constraint of being low maintenance has to be a design requirement.