1. Power size: Choose the appropriate power according to your own power needs. If it is used to charge mobile phones and small electrical appliances, the power is between 5W and 20W; Like vehicle mounted cranes, higher power is required.
2. Output Voltage: Different devices require different voltages for charging. Therefore, when choosing a solar panel, pay attention to whether its output voltage meets the requirements.
3. Matching Battery: To store solar energy, when purchasing a matching battery for a solar panel, note that the battery capacity and rated voltage must match the solar panel.
Which is better, monocrystalline or polycrystalline solar panels?
Which is better, monocrystalline solar panels or polycrystalline solar panels?
Monocrystalline solar panels scale slightly better than polycrystalline solar panels in terms of efficiency, power output and stability.
However, the cost of polycrystalline solar panels is lower and is suitable for large-scale power generation projects.
Overall, monocrystalline solar panels are more suitable for scenarios with higher performance requirements, while polycrystalline solar panels are more suitable for scenarios where economy is a priority.
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 polycrista silicon solar cellsllin 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 determined 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 is the same, whilethe surface of polycrystalline silicon appears to contain a lot of broken glass, making it sparkle.