Crystalline Silicon PV Module: Two types of crystalline silicon (c-Si) are used to produce PV module; single crystalline silicon or known as monocrystalline silicon and multi-crystalline silicon, also called polycrystalline silicon. The polycrystalline silicon PV module has lower conversion efficiency than single crystalline silicon PV module but both of them have high conversion efficiencies that average about 10-12%.

Amorphous Silicon PV Module: Amorphous silicon (a-Si) PV module or thin-film silicon PV module absorbs light more effectively than crystalline silicon PV module, so it can be made thinner.

It suits for any applications that high efficiency is not required and low cost is important.

The typical efficiency of amorphous silicon PV module is around 6%.

Hybrid Silicon PV Module: A combination of single crystalline silicon surrounded by thin layers of amorphous silicon provides excellent sensitivity to lower light levels or indirect light. The Hybrid silicon PV module has highest level of conversion efficiency about 17%.

With the increasingly prominent problems of non-renewable energy exhaustion and environmental degradation, the pursuit of renewable energy is the desire of all countries in the world, and photovoltaic power generation is recognized as one of the most promising power generation methods in the future. The photovoltaic power generation controller is directly related to the utilization efficiency of photovoltaic cells, the source of photoelectric conversion, and the maximum power point tracking (MPPT) algorithm operated by the controller is the core of improving the power generation efficiency.

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