Polycrystaline
Polycrystalline solar panels have blue-hued PV cells with straight edges. They have a lower efficiency compared with monocrystalline cells, which means you need more panels to reach the same power output. Polycrystalline panels manufacturing process is simpler. Polycrystalline panels are very durable, but they tend to last slightly less than monocrystalline panels. They are also affected more by high temperatures, which reduces their productivity on the hottest days.
Monocrystalline
Monocrystalline solar panels are characterized by their black PV cells with rounded edges. They have a higher conversion efficiency than polycrystalline panels, which means they produce more kilowatt-hours of electricity. If you want to install a solar panel system but your space is limited, monocrystalline panels will be more productive per square foot. While they're the most efficient solar panels, the manufacturing process of single-crystal silicon cells is more complex.

