Cadmium Telluride (CdTe) �?CdTe solar panels have the lowest carbon footprint, on the other hand, the toxicity of cadmium is really an environmental issue as It isn't easily recycled Orientation: This means the path the roof faces. The best solar roofs have substantial areas with South or Southwest exposures. That’s https://www.gainsolarbipv.com/gain-solar-blog/which-type-of-roof-is-best-for-solar-panels.html