Polycrystalline cells are a slice cut from a block of silicon, consisting of number of crystals. They have a speckled reflective appearance and thickness of the slice is clearly visible. The cells are less expensive to produce and more suited for Indian solar conditions.
Monocrystalline cells are a slice cut from a single crystal of silicon. In appearance , these panels have a smooth texture and thickness of the slice is clearly visible. The cells are expensive to produce.
PERC technology lets solar cells absorb more light and gives them a higher internal reflectivity, providing end users with more possibilities for tilt and installation options. This is great news for those with unorthodox spaces or locations that might not initially seem the best for a solar PV installation, as the PERC tech allows for much greater array layout flexibility.