1.Does the shade of houses, leaves or even bird droppings on photovoltaic modules affect the power generation system?
Answer: The shaded photovoltaic panels will be consumed as a load, but the energy generated by the unshielded cells will generate heat at this time, which is likely to form a hot spot effect. Thereby reducing the power generation of the photovoltaic system, or even burn down the photovoltaic modules in severe cases.
- Will the photovoltaic modules still work in rainy or hazy weather? Will the power be insufficient or out of power?
Answer: The solar irradiance is low in rainy or hazy days, but the photovoltaic modules still generate electricity under low light. As long as the working state of the photovoltaic module reaches the starting conditions of the inverter, the photovoltaic power generation system will work normally. When the distributed grid-connected photovoltaic system is not working, the load is automatically supplied by the grid, and there is no power shortage or power outage.
- Will there be insufficient power in winter when it is cold?
Answer: The factors that directly affect the power generation are the radiation intensity, the duration of the sunshine and the working temperature of the photovoltaic modules. The radiation intensity in winter will be weak and the duration of the sunshine will be shortened, so the power generation will be reduced compared with summer. But the distributed photovoltaic power generation system will be connected to the grid. As long as the grid has electricity, there will be no shortage of power and power outages in the household load.
4.Does the photovoltaic power generation system need to be disconnected during thunderstorms?
Answer: Distributed photovoltaic power generation systems are equipped with lightning protection devices, so there is no need to disconnect them. For safety and insurance, it is recommended that you choose to disconnect the circuit breaker switch of the combiner box and cut off the circuit connection with the photovoltaic module to prevent the lightning protection module from being unable to remove the harm caused by direct lightning strikes. Operation and maintenance personnel should check the performance of the lightning protection module in time to avoid the harm caused by the failure of the lightning protection module.
- Does the lightning protection of the home improvement system only need the component frame to be grounded for lightning protection?
Answer: The frame of the DC end module is grounded. If the installation is high, add a DC surge protector. In addition, an AC surge protector needs to be installed on the AC side.
- How to clean photovoltaic modules?
Answer: Rainwater can be cleaned without special maintenance. If you encounter adhesive dirt, you can simply wipe it with a soft cloth and clean water. It is recommended to use a soft brush and clean mild water when cleaning the glass surface of the photovoltaic module, and use a small amount of cleaning force to avoid damage to the glass surface. For modules with coated glass, pay attention to avoid damaging the coating layer.
- Will there be a risk of electric shock when wiping with water?
Answer: Wiping with water will not be dangerous. The photovoltaic power generation system and components are insulated and grounded. However, in order to avoid electrical shocks and possible damage to the components by wiping the components under high temperature and strong light, it is recommended to clean the components in the morning or late afternoon.
- Do I need to clean up the snow on photovoltaic modules after snow? How to clean up?
Answer: When heavy snow accumulates on the components after snow, manual cleaning is required. You can use soft objects to push down the snow, being careful not to scratch the glass.
9.Can I step on the components to clean up?
Answer: The module has a certain load-bearing capacity, but you cannot step on the module to clean it, which will cause the module to crack and damage, which will affect the power generation and service life of the module.