[equaviator]

“How efficient are these panels when they have a foot or 3 of snow on them?”

I have heated side mirrors on my Impala. Why not have heated solar panels where they’re needed? (j/k)

[Westlander]

They wouldn't work in the winter because 1.We get 20% actual direct sunlight during late Fall thru early Spring.(Great Lakes Region) 2.The panel itself that is suctioned cupped on a windshield would be hard to see around. 3.When you would need it the most, it would work the least.