With the country's strong support and promotion of the photovoltaic industry




More and more people are joining the photovoltaic "boom"




At the same time, xiaojing sorted out and summarized the common problems of distributed photovoltaic power stations




For your reference only, I hope more people understand photovoltaic




And love it the right way




Should I add wire mesh to the pv array?




Wire mesh is not recommended. It is possible to add a wire shield to the photovoltaic array, which may cause a shadow on the part of the module and form a hot spot effect, affecting the power generation efficiency of the entire photovoltaic power station. In addition, due to the qualified photovoltaic modules have passed the hockey impact test, it is generally not necessary to install protective net.


    How to operate the distributed photovoltaic grid-connected system after power failure?




After the power grid is cut off, the household distributed photovoltaic power generation system will generally be out of operation and unable to generate electricity normally. However, in some extreme cases, isolated islands may appear, that is, after the power failure of the power grid, the household distributed photovoltaic power generation system still continues to operate with part of the load, affecting the personal safety of maintenance personnel and potentially damaging household appliances and power grid facilities. Therefore, distributed photovoltaic system must have anti-island function.


    How do you tell the difference between electricity from the grid and your own system?




After the installation of the distributed photovoltaic power generation system is completed, the power grid company will conduct the inspection and acceptance of grid-connection. After the acceptance, two electricity meters will be installed in the owner's house, and the two electricity meters will measure the power generation of the photovoltaic system and the consumption of municipal electricity respectively. The simplest way is to look at the meter, as long as the photovoltaic system terminal meter word, is the use of solar cell components generated electricity.




Is the electricity generated by the system stored during the day, and can it be illuminated at night?




The power generated by a distributed photovoltaic system during the day can be stored for use as lighting at night, which requires the addition of electrical components such as controllers and batteries. During the day, the controller stores the photovoltaic power in the battery, and at night, the controller releases the power stored in the battery for lighting.




In the absence of energy storage equipment, if the power grid is cut off, the system will stop working. However, if the grid-connected inverter is replaced by intelligent micro-grid inverter (grid-connected and off-grid mixed inverter), the system can still operate normally.