This is very interesting: small, vertical solar panels are more suitable to harsher climates (both colder and hotter) than traditional large panels. As with everything renewable, when you hear someone telling you that X is unsuitable because of Y, remind them that a lot of these things are just technical problems, and we're deep into the 21st century so we can solve those. It's the political and economical forces that are pushing back hard, not technical limitations.