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- 2023-08-04 11:44:42
The cross-section of a solar panel consists of five layers: photovoltaic glass, EVA, solar cells, EVA, and backplane.
Reasons for solar panels not generating electricity in solar photovoltaic systems
If the customer asks if the solar panel does not generate electricity, if the customer has purchased a controller, first ask the customer to provide a photo of the controller and see where the indicator light of the controller is not on. If the solar panel indicator light is not on, it may be:
2、 The customer's MC4 connector was not properly connected and the wire was not properly clamped, causing it to become loose. The customer can check if it is a wiring issue.
3、 Ask the customer if there is sunlight or obstruction at the installation site. If there is obstruction or absence of sunlight, it can also affect power generation.
4、 Ask the customer what the voltage of the battery is. Some customers may purchase an 18V solar panel to charge a 24V battery, which is definitely not enough. If this is the case, we can guide the customer to purchase another solar battery of the same specification in series
5、 Another possibility is that the diode has burned out. Customers can open the solar panel junction box and then open it to see if there are any signs of burning out of the diode
The main causes of low current in solar panels
The customer has issues with the usage environment, the environment is obstructed, or the angle is incorrect.
There were issues during the customer's testing period, and the best time to test and replace parts is between 12:00 noon and 14:00 pm. The current measured facing south is the highest.
The same as before, the diode burned out, which may be caused by the customer's reverse polarity.
3. Controller issues.
1、 The 150 151 controllers we make ourselves all have light timing, and the load does not work or does not charge, 90% of which is caused by customers accidentally pressing the dimming timing switch. Please refer to the manual for details and ask the customer to switch back to the general mode
2、 Many customers ask us not to charge, and there are basically many things that we haven't connected to the battery. They tell them that the controller is also a load that needs to be connected to the battery to work.
3、 The wire is not properly connected or the connector is loose. Customers can check if there are any issues with the wiring.
4、 The voltage of the photovoltaic battery does not match, and some may buy a 200W 12V battery. If the voltage does not match, the battery cannot be charged.
Hello! Feel free to contact us if you have any questions during use, and we will provide you with satisfactory solutions as soon as possible! I hope to bring you better products and services. Looking forward to your feedback, thank you for your support, and wish you a happy life~
