The problem with Chinese solar panels is the lack of information and traceability. It is certain that some Chinese panels are made under deplorable social and environmental conditions. Sometimes it is also counterfeit. Other Chinese solar panels are quite reliable.
Their main advantage is of course their cost, up to 2 or 3 times lower than that of German panels for example. German photovoltaic panels are relatively expensive but constitute a guarantee of reliability and longevity.
Conversely, Chinese signs represent risk and the unknown: the origin of the parts? assembly conditions? respect for the environment and working conditions?
There are no quality certificates on the board, knowing that companies show off certificates and pay huge sums in exchange for them, and here I am talking about product certificates, not the manufacturer.
With the knowledge, and for things to be clear, there is a global standard for the information that is mentioned on the board, and I do not speak from my imagination
Of course, the methods of cheating merchants cannot come to the devil’s mind. I will mention one of them, for example, the agreement with (workshops). Not the companies in China pay attention to certain specifications, but in reality, the boards are less than that in order to obtain a lower price
A final word: Buy a panel from a well-known company that has a name in the solar panel market and wind your head if you are a regular customer, but if you are an engineer, you should read, read, read, then read
Read this article in French about this cheated customer, in order to benefit from his experience.
1. EFFICIENCY: what is the efficiency of a flexible solar panel, and how to select the highest quality
The price of solar panels in the U.S depending on some factors such as :
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