那我们该怎么判断呢？

从以下两点来进行判断太阳能板的等级：

一、外观判断

二、购买渠道

是否从正规大品牌厂家的授权经销商代理商处购买，并核对检查质保合同、发票等，这些决定了你是否能够购买到A级组件的同时更能享受到售后服务和后续25年的质保服务。

随着光伏发电的兴起，市场上也增加了许多组件厂。有些组件厂在光伏组件生产的过程中都会有严格的出厂检验，将组件按照性能和外观分为A、B、C、D等级。而有些小型的组件厂仅仅是跟随潮流，收购旧的电池片，然后进行加工转手卖出。对于刚入行的朋友来说就会很容易购买到这些B级、C级组件，用不到几年就坏掉了。而A级组件性能优异，寿命至少在25年。一般来说，能够在市面上光明正大流通的也就只有A级组件。

那这A、B、C级组件一般都被应用在哪些方面呢？

A级组件：主要用于地面电站、分布式电站、户用系统等，25年以上寿命 。

B级组件：主要用于路灯、离网系统、电瓶车等，5年寿命 。此类组件是A类降级组件或用B级材料生产的，价格在3元左右。

C类组件：主要用于用电不发达地区，如偏远地区、阿富汗、中东、南非等，寿命不详。

因此，在选择光伏电站组件时，不可看重蝇头小利，为节省成本而不顾组件质量，也要擦亮眼睛，不被不正规商家蒙骗。

Class A component: Class A battery is the highest quality grade, the component can use the battery;  

Class B components: Class B cells slightly lower than class A, the components can be degraded to use the complete cell;  

Class C component: Class C battery is a piece with serious bad appearance and missing Angle. It is only suitable for making small parts after cutting the battery and supplying to customers with special needs.  

Class D components: Class D batteries are available in fragments for customers with special needs or special treatment.  

The picture  

So how do we know?  

Judge the grade of solar panels from the following two points:  

First, appearance judgment  

1. Look at the surface  

Take a careful look at the toughened glass surface, the products of small manufacturers are relatively rough, and the silicone residue on the surface will reduce the power generation efficiency of the panel.  

2. Look at the battery  

Check the battery for cracks and hidden cracks.  There are many irregular manufacturers splicing broken battery pieces, which has great risks and hidden dangers, and will affect the safe use of the whole panel.  

The picture  

3. Look at the back  

Look at the mass of pressure on the back.  If there are uneven conditions after pressure, such as bubbles, wrinkles and so on, it is regarded as relatively inferior quality products.  

4. Look at the border  

Whether flat or not.  Due to the low threshold to enter the solar panel industry, many small manufacturers use artificial framing, the shape is not a strict rectangle, the firm degree is also greatly reduced.  

5, look at silica gel  

See whether the silica gel around the back is evenly distributed and whether it closely penetrates the gap between the backplane and the frame.  

6. Look at welding  

Carefully observe whether the series welding of the battery is leaky.  At the same time also want to see if the battery is arranged neatly.  

The picture  

7. Look at the junction box  

Finally, see whether the junction box is firm, whether the junction box cover can be firm, closely stuck on the junction box, and whether the outlet wire lock head rotation freely, whether to tighten.  

Second, purchase channels  

Whether you buy from an authorized dealer or agent of A major brand manufacturer, and check the warranty contract, invoice, etc., determines whether you can buy class A components and enjoy better after-sales service and subsequent 25 years of warranty service.  

The picture  

With the rise of photovoltaic power generation, the market has also increased the number of module plants.  Some module factories will have strict factory inspection during the production of photovoltaic modules, which will be divided into A, B, C and D grades according to performance and appearance.  Some small component manufacturers are simply following the trend, buying old batteries and processing them for resale.  It is easy for friends to buy these B-class and C-class components, which will be broken in less than a few years.   Class A components, on the other hand, perform well and last at least 25 years.  In general, a-level components are the only ones that can be traded in the open market.  

So what are these A, B, and C components used for?  

Class A components: mainly used in ground power stations, distributed power stations, household systems, etc., more than 25 years of life.  

Class B components: mainly used for street lamps, off-grid systems, battery cars, etc., 5 years life.  This kind of component is class A degraded component or produced with class B material, the price is about 3 yuan.  

Class C components: mainly used in underdeveloped areas, such as remote areas, Afghanistan, the Middle East, South Africa, etc., life unknown.  

Therefore, when choosing photovoltaic power station modules, do not value petty profits, regardless of the quality of components to save costs, but also to sharpen your eyes, not to be cheated by irregular businesses.