Polycrystalline solar modules are solar modules that consist of several crystals of silicon in a single PV cell. Polycrystalline PV panels cover 50% of the global production of modules. Made of multiple photovoltaic cells and each cell contains silicon crystals that function as a semiconductor device. As the photons from the sunlight fall on the PN junction, it imparts energy to the electrons to flow as electric current.
1- Polycrystalline silicon is the most consolidated and tested photovoltaic technology.
2- The conversion efficiency in diffused light conditions (e.g. on a cloudy day) is better than in monocrystalline modules.
3- Poly-crystalline cells are slightly cheaper than monocrystalline ones.
4- Poly-crystalline is having 25 years of life span.
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