Photovoltaic power generation weather

In the scorching sun, photovoltaic power generation is a very good way at high temperature, but there are many places to pay attention to in photovoltaic power generation.

Since the beginning of summer, there has been high temperature roasting in many places, and such extreme weather has appeared in passing. Therefore, high temperature weather has increased the demand for public air conditioners to relieve summer heat, and the power load has reached a new high this year. Many people have thought of this method, because the temperature is high, the efficiency of solar power generation will be higher, so as to alleviate the tension of converting solar energy into electric energy. First of all, we should know that the efficiency of solar power generation is related to solar radiation, and what is the relationship between solar radiation and high temperature weather. Only by understanding this relationship can we know how to convert solar radiation in high temperature weather into electric energy.

Summer has such a characteristic that the days are long and the nights are short. When the direct point of the sun is in the northern hemisphere, the solar altitude angle at this time is relatively large. When solar radiation passes by, the distance of the atmosphere will be shortened, and the atmosphere will be weakened at this time. So the solar radiation reaching the ground increases, and the temperature will get higher and higher. This year's high temperature weather is due to abnormal atmospheric circulation. After entering the summer this year, it was affected by the subtropical high in the northern hemisphere, so this situation reached a strong level.

Moreover, the western Pacific subtropical high, Iranian high and elephant high have been strengthened in stages, resulting in a soft high belt in the subtropical region of the northern hemisphere. Through these aspects, the ground reinforcement is controlled, but solar radiation can reach the ground directly without forming clouds. It can be found that photovoltaic power generation has a certain relationship with solar radiation, but if the temperature is too high, the power generation efficiency may become low. Because there is a negative temperature effect when using photovoltaic modules to generate electricity, the standard temperature is generally 25℃. If the temperature is too high, the performance of some modules may be degraded.