There are commonly two type of solar panels

Both monocrystalline and polycrystalline solar panels serve the same function in the overall solar PV system: they capture energy from the sun and turn it into electricity. They are also both made from silicon, which is used for solar panels because it is an abundant, very durable element. Many solar panel manufacturers produce both monocrystalline and polycrystalline panels.
Both mono and poly solar panels can be good choices for your home, but there are key differences between the two types of technology that you should understand before making your final solar purchase decision.

MONOCRYSTALLINE SOLAR PANELS

To make solar cells for monocrystalline solar panels, silicon is formed into bars and cut into wafers. These types of panels are called “monocrystalline” to indicate that the silicon used is single-crystal silicon. Because the cell is composed of a single crystal, the electrons that generate a flow of electricity have more room to move. As a result, monocrystalline panels are 10-15% more efficient than their polycrystalline counterparts. Monocrystalline panels also feature a lower temperature coefficient, which means that as the panels get hotter, they will typically outperform their polycrystalline counterparts.

POLYCRYSTALLINE SOLAR PANELS
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 to less freedom for the electrons to move. As a result, polycrystalline solar panels have lower efficiency ratings than monocrystalline panels.
Mono vs. Poly solar panels: Comparison table
Monocrystalline Polycrystalline
Cost More expensive Less expensive
Efficiency More efficient Less efficient
Aesthetics Solar cells are a black hue Solar cells have a blue-ish hue
Longevity 25+ years 25+ years
Manufacturers LongiSolar
ET Solar
Canadian Solar
Risen
GCL

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