The temperature is rising day by day. The pace of summer is getting closer and closer. A large wave of lightning, rainstorm and hail are waiting for us not far away! Can our photovoltaic power station carry it?
What are the impacts of changeable weather in summer on photovoltaic power plants? What should we do to minimize the impact of adverse weather as much as possible?
Reducing the cost of photovoltaic kilowatt hour is the focus of current energy strategy. Under the pressure of photovoltaic cost reduction, it has become a trend to promote cost reduction by system efficiency, especially the high efficiency of solar panels, and reduce the investment cost of system end owners.
However, the solar cell technology innovation is facing a bottleneck, perc is close to the peak theoretical efficiency, heterojunction under the current situation that TOPCON and others cannot break through the cost barrier in the short term, in order to achieve higher power and power generation, it has become an industry consensus to pursue a large-scale path, especially to break the cost reduction bottleneck with G12, dilute the production cost at the manufacturing end, reduce the construction cost of system power station and maximize the income.
Cleaning conditions of solar panels
The solar panel cleaning of the photovoltaic power generation system shall be carried out in the early morning, evening, night or cloudy and rainy days (when the irradiance is lower than 200W / ㎡).
It is strictly prohibited to choose the time around noon or in strong sunshine. When cleaning in the morning and evening, it should also be carried out in a dark time period.
System description:
A grid-connected solar power generation system consists of solar panel array, solar inverter, grid-connected distribution box, photovoltaic support and electricity meter.
China has a vast territory and rich solar energy resources. In addition to the macro events of the photovoltaic industry, go back to the micro solar panels. If someone suddenly asks you, how many kwh can a solar panel generate in a year? Probably many people will be stunned. Yes, how much?
Maintenance of solar street lamp battery
1. Prevent rainwater from entering
The outer packaging of the battery must be tight enough to prevent rainwater from entering.
2. Stability of discharge charging
In the process of charging and discharging, the signs of too high and too low voltage shall not appear.
3. Temperature control
Any object has its own proper temperature, which can not be too high or too low. We must control the temperature.
Service life of solar street lamp battery
Everyone is saying that solar street lamps have the advantages of wind resistance, high brightness, simple installation, stable and reliable operation and no consumption of conventional energy. They are an important lighting development in our scientific progress in the 21st century and provide more convenience for our night life.
We also need to consider the service life of solar street lamps and how long it can take. After all, the price of solar street lamps is not a small amount.
Regular maintenance of solar panel array
The use and maintenance of solar panel array directly affects the service life of solar panel, the operation cost and efficiency of solar power generation system. Doing a good job in the maintenance of solar panel array is the best means to maintain the good operation of the system.
Generally, there is no need to clean the surface of the solar panel array, but the exposed wiring contacts shall be regularly inspected and maintained.
The azimuth of the solar panel array is the included angle between the vertical plane of the array and the due south direction (the East deviation is set as a negative angle and the West deviation is set as a positive angle).
Generally, in the northern hemisphere, when the square array faces due south (that is, the included angle between the vertical plane of the square array and due south is 0 °), the power generation of solar panels is the largest.
Common solar panels in the market can be divided into mono, poly and thin film according to the type of solar cell. Mono and poly solar panels account for the largest market share.
Many people will ask: what is the difference between mono and poly solar panels? So whether to use mono or poly solar panel?