Views: 23 Author: Vickie Publish Time: 2020-09-17 Origin: Site Inquire
In recent years, energy conservation and environmental protection have been promoted globally, and more and more ordinary households have begun to gradually install solar panels. In many areas, it is impossible to solve power problems with conventional electricity in the short term, especially in areas with frequent power outages or without electricity. However, many people do not know the needs of monocrystalline solar panels and polycrystalline solar panels, and how to choose them. We will explain in detail to help you make the most appropriate decision.
1.What are Monocrystalline(Black) solar panel?
Black solar panels, also known as monocrystalline panels, are made from a single, high quality silicon crystal. This silicon has a higher level of purity as compared to the silicon crystals used in blue photovoltaic panels.
In monocrystalline solar panels, the silicon is oriented in the same way to form a large silicon crystal. Due to the way light interacts with the monocrystalline silicon layer, the monocrystalline solar panel appears black. The process of arranging silicon into a crystal is called the Czochralski process. This process consumes energy and wastes some silicon. The entire process of making monocrystalline black cells is much more complicated than making polycrystalline blue solar cells. Therefore, the cost of monocrystalline panels is higher than that of polycrystalline solar panels.
2.What are Polycrystalline(Blue) solar panels?
Blue solar panels are also called polycrystalline solar panels. Unlike a monocrystalline silicon cell, a polycrystalline cell is created from more than one raw silicon crystal.
The silicon used in polycrystalline solar panels is made of raw silicon that has been melted and poured into a square mold. The way in which polycrystalline solar panels reflect light, coupled with the anti-reflective coating applied to them, gives these solar panels a blue appearance and low lightness.
The process of making polycrystalline solar panels is very similar to the process of making monocrystalline solar panels. However, in the case of making polycrystalline solar panels, the step of drawing silicon seed crystals (used to form black monocrystalline solar panels) is skipped, and the waste and energy consumption caused by the manufacturing process of polycrystalline cells are less. Therefore, polycrystalline solar panels are cheaper and more widely used.
3.Polycrystalline(Blue) solar panels VS Monocrystalline(Black) solar panel: Which is the best for your home?
①Compared from the power generation efficiency, in general, the power generation efficiency of single crystal is 19-21%, and the power generation efficiency of polycrystalline is 17-19%.
②Compared with price, the price of single crystal is about 5-6% more expensive than polycrystal
③Under cloudy weather, the power generation effect of polycrystalline is slightly higher than that of single crystal, which is about 3-5% higher.
④ From the appearance point of view, single crystal is more beautiful than polycrystal.
The choice between single crystal or polycrystal is mainly determined by preference and usage habits.
No matter which solar panel you choose, installing solar panels to power your house is a sustainable decision, depending on the user's preferences and usage habits. Most importantly, installing any type of solar panel will greatly reduce your monthly electricity bill.
It is not only energy-efficient, but also safe and pollution-free, saving money for many families and producing good economic benefits.