Polycrystalline solar panel made of silicon and it is also referred to as poly solar panel & multicrystalline panel, it is new technology & manufacturing process. There are so many different silicon crystals in particular each & every cell.
Polycrystalline cells were thought to be inferior to monocrystalline cells because they were somewhat shorter efficient. In this type of solar panels there are less space or margin left for electrons to move further. In the out-side structure of these cells, panels are square & the angles are un-cut.
PVA solar are currently one of the best solar panel manufacturer in India.