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Difference between solar monocrystalline silicon and polycrystalline silicon

2021-09-22
A, monocrystalline silicon solar panels and polysilicon solar panels
1. Differences in appearance
First of all, let's look at the appearance of the solar panel component. The four corners of the monocrystalline silicon cell are arc-shaped, and there is no pattern on the surface. The four corners of the polycrystalline silicon cell are square, and the surface has a pattern similar to ice flowers.
2. Differences in conversion rates
In terms of conversion rate, the conversion rate of monocrystalline silicon is higher than that of polysilicon, so the corresponding price is also higher than that of polysilicon. But in use there is no big difference between the two, life and stability are very good.
3. Different production techniques
In terms of production and manufacturing, the production process of monocrystalline silicon is more complex than that of polysilicon, which is also the reason why the conversion rate of monocrystalline silicon is higher than that of polysilicon.
Single silicon solar panels
Two, the difference between single crystal and polycrystalline solar panels
1. The development
Monocrystalline photovoltaic panels were applied earlier than polycrystalline photovoltaic panels, but the development of polycrystalline photovoltaic panels is faster than that of monocrystalline photovoltaic panels.
2. The dosage
The application of polysilicon in power station is much higher than that of monocrystalline silicon, which accounts for 30% and 70%.
3. See the appearance
Monocrystalline dark blue, almost black, polysilicon sky blue, bright color; Single - crystal cell is circular - shaped, polycrystal cell is square.
4. Look at conversion rates
The efficiency of single crystal is higher than that of polycrystal, about 10%-20%.
5. Look at cost
The cost of single crystal is slightly more expensive than that of polycrystal. The cost of different manufacturers is different. The market price is five points to ten cents per watt.
6. See the measured data of attenuation
The decay rate of single crystal and polycrystal can not be distinguished from single crystal and polycrystal. Relative to product quality (sealing degree, whether there is a magazine, whether there is a hidden crack), has a greater impact on the degree of attenuation. Solar panel manufacturer
7. Look at the price/performance ratio
At present, the price performance of polycrystal is slightly higher than that of single crystal, but only at present. With the reduction of the cost of single crystal components, it may be reversed in a few years.