Polycrystalline or Multicrystalline solar panels are solar panels that consist of several crystals of silicon in a single PV cell. Several fragments of silicon are melted together to form the wafers of polycrystalline solar panels. Polycrystalline PV cells have a higher temperature coefficient and has a slightly higher degradation rate. These panels have a high power density and come with a structural frame of their own which makes mounting cheaper and simpler. They have efficiencies between 13% to 16%, which is still a very good ratio and it’s expected to get only higher in the future.