Previously, rumors about photovoltaic radiation have never stopped. Some people even said that since the photovoltaic power station was installed, no grass grows on the ground around it.

It has to be said that some people who don’t know anything about photovoltaic power stations will easily believe these remarks after seeing them, so they dare not easily install photovoltaic power stations, and even treat the introduction and promotion of some photovoltaic power station business as scams.

But it is really outrageous that the installation of photovoltaic power stations will cause no grass to grow on the ground around them. After all, some photovoltaic power stations installed in mountains or in the wild are often blocked by the wild weeds around them due to lack of maintenance and care, and eventually form hot spots and damage the photovoltaic panels.

So, does photovoltaic radiation have radiation?

Before answering this question, we actually need to do a simple popular science. In fact, radiation is everywhere in daily life. Even if you eat a banana, you will have radiation. This is because bananas are rich in potassium. Every banana you eat will be exposed to about 0.1µSv of radiation, but these radiations have no effect on the human body. To reach a lethal intensity of radiation, you need to eat 20 million bananas.

Therefore, photovoltaic power stations definitely have radiation, but we don’t have to be frightened when we talk about radiation. After all, the radiation in daily life is not nuclear radiation. What we need to figure out is whether the radiation from photovoltaic power stations is harmful to the human body?

There are many popular science and explanations about photovoltaic radiation on the market. In fact, the Guangdong Solar Energy Association has conducted special research on photovoltaic radiation, lightning strikes, noise, pollution and other issues, and launched a research report on related topics. In the report, whether photovoltaic power stations have radiation depends mainly on the following three points:

1. Photovoltaic components: The light energy absorbed by photovoltaic cells is converted into magnetic energy, which is different from conventional generators, and then converted into electrical energy. The electrical energy converted into direct current, so it does not generate electromagnetic radiation. Photovoltaic power generation belongs to non-ionizing radiation. Specifically, when light shines on the surface of photovoltaic panels, photons interact with electrons in semiconductors, and electrons are driven by the electric field inside the semiconductor to form current. The current generated by solar panels is direct current, and direct current does not generate a magnetic field, so photovoltaic panels do not radiate.

2. Inverter: The electromagnetic radiation tester is used to test the surface of the solar inverter in operation. The highest value is 4.24µt, which is 0.6µt less than the radiation value of the back of a home TV. When the distance is 10 cm from the inverter, the electromagnetic radiation intensity at this position drops sharply to 0.23µt, which is equivalent to the radiation value when the home TV changes channels. When the distance reaches 15 cm, the electromagnetic radiation intensity drops to 0.00µt. When the distance reaches more than 15 cm, no electromagnetic radiation will be generated.

3. Power output: After the inverter completes the AC conversion, the photovoltaic power is supplied to the equipment through the transmission line for use. At this time, the photovoltaic power is consistent with the city power, both of which are 50 Hz power frequency electricity in accordance with the GB standard. The public exposure limit can reach 100µt. In daily life, many electrical devices we come into contact with will have radiation, which is mainly divided into whether the radiation has relevant damage to the human body. According to the authoritative report analysis, the radiation of photovoltaic power stations is far less than that of mobile phones.

Specifically, the photovoltaic power generation system converts solar energy into electrical energy through photovoltaic panels. This process does not involve any nuclear reactions or chemical changes, so it does not emit ionizing radiation. The current of the photovoltaic panel is direct current, which does not generate a magnetic field, and the radiation generated when the inverter converts direct current into alternating current is also very small, lower than the radiation generated by daily household appliances, so it will not affect human health.

In summary, it is more practical to use your phone less than to worry about whether the radiation from photovoltaic power stations will cause damage to the human body.