The advantages of monocrystalline silicon solar panels: high photoelectric conversion efficiency and good stability; the photoelectric conversion efficiency of monocrystalline silicon solar cells is about 15%, and the highest is 24%, which is the highest photoelectric conversion efficiency of all types of solar cells at present. of.
Disadvantage: The production cost is so high that it has not been widely and universally used in large numbers.
Advantages of polycrystalline silicon solar panels: higher yield and lower cost. In terms of production cost, it is cheaper than monocrystalline silicon solar cells, the material is simple to manufacture, power consumption is saved, and the total production cost is lower, so it has been greatly developed. In addition, the service life of polycrystalline silicon solar cells is also shorter than that of monocrystalline silicon solar cells. Monocrystalline silicon is generally encapsulated with tempered glass and waterproof resin, so it is durable and has a service life of up to 25 years. Price is on the high side.
The photoelectric conversion efficiency of polycrystalline silicon solar cells is low, and its photoelectric conversion efficiency is about 15%.
Disadvantages: The photoelectric conversion efficiency of polycrystalline silicon solar cells is much lower, and the photoelectric conversion efficiency is about 12%.
The unit price of solar photovoltaic cell modules is generally calculated by power (watts) rather than by square meters. If one square meter of polysilicon modules is about 150w and the market price is 4 yuan/watt, the price of one square meter is about 500 yuan. The specific price and efficiency are determined according to the manufacturer.