What is a Polycrystalline PV Module?
Polycrystalline or Multi-crystalline are a newer technology, and has a different manufacturing process. Polycrystalline start as a silicon crystal ‘seed’ placed in a vat of molten silicon. The vat of silicon is allowed to rapidly cool and finally sliced into square wafers creating the polycrystalline shape. This is what forms the distinctive edges and grains in the solar cell.