1. Does the higher the temperature, the higher the power generation?
There are many friends who preconceived that photovoltaics are not just relying on sunlight to generate electricity. If photovoltaics are installed in July and August every year, the power generation will definitely be great!
In fact it is not so! (high temperature ≠ good light)
High temperature in summer does not mean high power of the power station, high temperature, strong humidity... on the contrary, it will increase the burden on the power station and bring many adverse effects. As we all know, photovoltaic power generation is proportional to the light time and light intensity.
However, light is only one of the factors that cause the temperature to rise, and it is not a direct factor. Therefore, we cannot equate high temperature with good sunlight, nor can we say that the higher the temperature, the higher the power generation of photovoltaic power plants.
In fact, the most suitable temperature is about 24 degrees. The temperature has little effect on the photovoltaic panel. In the photovoltaic system, the photovoltaic component is afraid of heat, and the inverter is also afraid of heat. If the temperature is too high, the inverter will be reduced. Work efficiency Therefore, when installing the inverter, it is usually installed in a place with good ventilation and no direct sunlight.
2. How is the safety of household photovoltaics, can it deal with lightning strikes, hail, and leakage?
Of course!
First of all, DC combiner boxes, inverters and other equipment lines have lightning protection and overload protection functions. When abnormal voltage such as lightning strike and leakage occurs, it will be automatically turned off and disconnected, so there is no safety problem. In addition, all metal frames and brackets on the roof are grounded to ensure safety in thunderstorms. Secondly, the surface of our photovoltaic modules is made of super impact-resistant tempered glass, which has undergone rigorous testing (high temperature and high humidity) when passing the EU certification.
3. If there is dust or garbage on the surface of the system, will it affect the power generation?
The impact is very small, because the photovoltaic system is related to the irradiance of the sun, and not obvious shadows will not have a significant impact on the power generation of the system. In addition, the glass of the solar module has a surface self-cleaning function, that is, in rainy days, the rainwater can wash away the dirt on the surface of the module. Therefore, the operation and maintenance costs of photovoltaic systems are very limited.