Polycrystalline solar panels are also made from silicon. However, instead of using a single crystal of silicon,
manufacturers melt many fragments of silicon together to form the wafers for the panel. Polycrystalline solar panels
are also referred to as “multi-crystalline,” or many-crystal silicon. Because there are many crystals in each cell, there
is less freedom for the electrons to move. As a result, polycrystalline solar panels have a good efficiency rating