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How to make better use of road solar street light?

2020-04-29

The azimuth of the solar cell square array is the angle between the vertical plane of the square array and the south direction (the eastward deviation is set to a negative angle, and the westward deviation is set to a positive angle). In general, when the square array is facing south (that is, the angle between the vertical plane of the square and the south is 0 °), the solar cell generates the most power. When deviating from true south (Northern Hemisphere) by 30 °, the power generation of the square array will be reduced by about 10% ~ 15%; when deviating from true South (Northern Hemisphere) by 60 °, the power generation of the square array will be reduced by about 20% ~ 30% .

 

However, in clear summer, the maximum moment of solar radiation energy is later in the noon, so when the orientation of the square array is slightly westward, the maximum power generation can be obtained in the afternoon. In different seasons, the orientation of the solar cell array is slightly east or west, and there is a time when the maximum power generation is obtained.

 

So how to achieve a good application in road lighting? In order to break the restrictions on the installation cost of solar street lamps, when installing solar street lamps, it is completely unnecessary to increase the capacity of the storage battery and the solar battery in order to double the number of consecutive rainy days that are rare every year. Increasing the installation cost of solar street lamps will cause a waste of resources to a greater extent.

 

In order to realize the good application of solar street lighting, during the installation of solar street lamps, we must fully consider the year, the sunshine time at night requires the length of the lighting time to meet the demand for electrical energy. Only according to this demand, do the solar street lamp system configuration, Only in this way can the utilization of energy efficiency of the solar system and the reasonable control of the installation cost of the entire solar street lamp be achieved.


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