Suitable Solar Panel For Solar Power Street Lamp

Solar power street lamps provide illumination by absorbing solar energy and converting them into electrical energy. It is the solar panel that realizes the function of solar energy conversion, which is the core part and the most valuable part of the solar power street lamp. Its function is to convert the radiation power of the sun into electrical energy, or send it to the battery for storage. Among the many solar cells, the most common and practical ones are monocrystalline silicon solar cells, polycrystalline silicon solar cells and amorphous silicon solar cells. This article will guide you to the differences of these three types of solar panels used in solar power street lamps.

Monocrystalline silicon solar panel

Monocrystalline silicon solar cell is a kind of solar cell that is being developed rapidly at present. Its composition and production process have been finalized, and its products have been widely used in space and ground facilities. This solar cell uses high-purity single-crystal silicon rods as raw materials, with a purity requirement of 99.999%. The photoelectric conversion efficiency of monocrystalline silicon solar cells is 18%-24%, which is the highest photoelectric conversion efficiency among the current types of solar cells, but the production cost is so high that it cannot be widely used. Since monocrystalline silicon is generally encapsulated by tempered glass and waterproof resin, it is strong and durable, and its service life is generally up to 15 years and up to 25 years. Its various performance parameters are stable, and it is suitable for use in southern areas where there are many rainy days and relatively insufficient sunshine.

Polycrystalline Silicon Solar Panel

The production process of polycrystalline silicon solar cells is similar to that of monocrystalline silicon solar cells, but the photoelectric conversion efficiency of polycrystalline silicon solar cells is much lower, and the photoelectric conversion efficiency is about 15%. In terms of production cost, it is worse than monocrystalline silicon solar cells, the material is simple to manufacture, power consumption is saved, and the total production cost is low, 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. In terms of cost performance, monocrystalline silicon solar cells will be better when used in led solar street light.

Amorphous Silicon Solar Panel

Amorphous silicon solar cell is a new type of thin-film solar cell that appeared in 1976. It is completely different from the production method of monocrystalline silicon and polycrystalline silicon solar cells. The process is greatly simplified, the consumption of silicon materials is very small, and the power consumption is lower. Its main advantage is that it can generate electricity even in low light conditions. However, the main problem of amorphous silicon solar cells is that the photoelectric conversion efficiency is low. The current international advanced level is about 10%, and it is not stable enough. With the extension of time, its conversion efficiency declines.

In areas with sufficient sunshine, it is better to use polycrystalline silicon solar cells, because the production process of polycrystalline silicon solar cells is relatively simple and the price is lower than that of single crystal. In the southern region where there are many rainy days and relatively insufficient sunshine, it is better to use monocrystalline silicon solar cells because the performance parameters of monocrystalline silicon solar cells are relatively stable. Amorphous silicon solar cells are better in the case of insufficient outdoor sunlight, because amorphous silicon solar cells have lower requirements for sunlight conditions. You can choose suitable solar power street lamps based on your conditions.