The majority of solar panels on the market today are made of crystalline silicon, arranged into a series of cells that together form a circuit. The two core types of crystalline silicone designs are polycrystalline and monocrystalline panels.
Polycrystalline solar panels are made by pouring molten scraps of crystals into a cast. This crystal structure will form imperfectly, creating boundaries where the crystal formation breaks. The impurities in the crystal makes polycrystalline modules less efficient.
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Monocrystalline solar panels are made by growing a single crystal. The crystal framework in a monocrystalline is even, giving it the best purity and highest efficiency levels.
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Monocrystalline PERC solar panels are the highest efficiency monocrystalline panels on the market. These panels implement a back surface passivation layer that absorbs more reflected light, lowers electron recombination, and reduces heat absorption.
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