I think polycrystalline silicon and monocrystalline silicon solar panels are better than polycrystalline silicon.
1. Low cost
The speed of polycrystalline silicon solar panels is generally two to three times that of monocrystalline silicon, and the voltage is more stable.
2. Beautiful craftsmanship
The surface of monocrystalline silicon is the same, while the surface of polycrystalline silicon feels like there are a lot of broken glass inside, which is shiny.
What is the difference between monocrystalline and polycrystalline solar panels?
"Xinhai", "Jindi", "Tianyang".
Generally speaking, 1 square meter of crystalline silicon solar panel is equivalent to about 120-140 W. If calculated as 120 W, the sun at 6 hours a day is 120*6 = 720 WH.
Types of solar panels:
Solar cellss in monocrystalline silicon:
Currently monocrystalline Photoelectric conversion The efficiency of silicon solar cells is about 15%, the highest reaching 24%. This is currently the highest photoelectric conversion efficiency among all types of solar cells. However, the production cost is so high that it cannot be widely and commonly used. use in large quantities.
1. Difference in appearance
From the appearance, the four corners of the single crystal silicon cells are arc-shaped, and there is no pattern on the surface. The four corners of the polycrystalline silicon cells are square, and the surface has a pattern similar to ice flowers.
2. Usage Differences
The average conversion efficiency of monocrystalline silicon cells is approximately 1% higher than that of polycrystalline silicon cells. However, the cellsin monocrystalline silicon can only be transformed into quasi-cells. -square shapes (all four sides are arc-shaped), so when forming a solar panel, part of the area will not be filled. Polysilicon is square, so there is no such problem;
3. Different manufacturing processes
The energy consumed in the manufacturing process of polycrystalline silicon solar cells is approximately 30% lower than that of monocrystalline silicon solar cells. Therefore, polycrystalline silicon solar cells. represent the total global production of solar cells. The share is large and the manufacturing cost is lower than that of monocrystalline silicon cells.
4. Different dosages
The application of polycrystalline silicon in power plants is much higher than that of monocrystalline silicon, with monocrystalline silicon accounting for 30% and silipolycrystalline cium 70%.
Baidu Encyclopedia - Monocrystalline Solar Panels
Baidu Encyclopedia - Polycrystalline Solar Panels