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. The manufacturing process of polycrystalline silicon solar cells is similar to that of monocrystalline silicon solar cells. Its photoelectric conversion efficiency is about 12%, which is slightly lower than that of monocrystalline silicon solar cells. However, the material is easy to manufacture, saves energy. and the overall production cost is low, so there is a lot of development.
2. Beautiful craftsmanship
Single crystals are arranged in an orderly manner, while polycrystalline crystals are arranged in a disorderly manner. This is mainly determinated by their processing technology. produced by casting methods, which means directly pouring silicon into a crucible to melt and shape it, while single crystal adopts Siemens method to improve Czochralski. The Czochralski process is a process of reorganization of the atomic structure. To our naked eyes, the surface of monocrystalline silicon looks the same, while the surface of polycrystalline silicon appears to contain a lot of broken glass, making it sparkle.
What are the advantages and disadvantages of installing solar panels on the roof?
The solar street light is a lighting device that uses solar energy to produce electricity. It converts solar energy into electrical energy via solar panels and then stores it for nighttime lighting. Among the solar panels of solar street lights, there are some differences between those with one solar panel and thosex with two solar panels.
First of all, the number of solar panels is different. One solar panel means there is only one solar panel on the solar street light, while two solar panels mean there are two solar panels on the solar street light. The main difference between the two models lies in the energy production and storage capacities of the solar panels.
Second, the areas of the solar panels are different. The area of one solar panel is relatively small, while the area of two solar panels is relatively large. The difference in area will directly affect the power generation efficiency and storage capacity of the solar panel. Larger solar panels can absorb more solar energy, thereby generating more electrical energy and improving the brightness and lighting duration of solar street lights.
In addition, there can behave differences in the way solar panels are arranged. One solar panel is usually placed on top of the solar street light, while two solar panels can be placed on both sides of the solar street light. This arrangement can increase the receiving area of solar panels and improve the efficiency of solar energy use.
In summary, there are some differences between one solar panel and two solar panels in terms of electricity generation capacity, storage capacity, lighting brightness and duration of solar street lights. The model you choose depends on your actual needs and your budget. Whether it is one or two solar panels, solar street lights are environmentally friendly and energy-saving lighting equipment that can effectively use solar resources and reduce dependence on traditional energy sources , Andhave broad application prospects.
1. Advantages of Rooftop Solar Panels 1. If the solar panel is installed on the roof, it can Energy can be saved by efficiently utilizing solar energy resources to generate electricity. power. Currently, the state provides subsidies for the installation of electricity generation panels. Approved solar power generation will reduce our daily electricity consumption, meaning your family will save on their electricity bills. 2. Disadvantages of Rooftop Solar Panels 1. The investment in installing solar panels is relatively large and for some families, installation costs can be factored in. Questions will not be accepted. 2. This type of solar power generation panel is installed directly on the roof. It will be affected for a long time afterward. When it is exposedIf exposed to sun and wind, corrosion problems may arise. 3. After all, solar panels are obtained from solar energy. It also uses Yang's resources to generate electricity, so it can only produce electricity on sunny days. Use it, but if it is cloudy or not very sunny. Sometimes power consumption is affected.