Monocrystalline vs. Polycrystalline Solar Panels
On the other hand, polycrystalline solar panels need more space to make the same amount of electricity. This can be a problem for homes with small roofs. Roof Space Optimization. Monocrystalline panels are better for small roofs. They''re very efficient, so they make more power in less space. This is great for homes with limited roof space.