I think trackers are a thing of the past. The cost of solar panels has sunken so low, they come essentially for free in installations. A tracker would be way to

I think trackers are a thing of the past. The cost of solar panels has sunken so low, they come essentially for free in installations. A tracker would be way to expensive. Here in Germany, people even start covering north-facing roofs with solar, and of course even walls and fences, if they are roughly in the right direction.