Solar street lights play an important role in our modern life. It also has a good maintenance effect on the environment and a better promotion effect on the use of resources. It can not only avoid power waste, but also effectively use new power together. However, many people worry that serious radiation problems may occur during the solar conversion process.
Sunlight is the most healthy, safe and clean natural power in nature, it can definitely guarantee inexhaustible. It can directly convert sunlight into electricity through the conversion and storage of solar panels. This is about the night lighting of street lights, the lighting will continue to supply power, and it can also ensure that the life of the lights is longer. In this process, sunlight will not form any radiation, and there is no need to worry about damage caused by ultraviolet rays.
Through scientific research, it is proved that solar street lights will not release harmful toxins during the renovation process, and will not cause pollution to the environment. The most important thing is that the light in the conversion process can also reach the concept of green and environmental protection, so there is no need to worry about radiation problems, and the quality of use of street lights can also provide a more perfect guarantee for lighting. It can be used normally if exposed to outdoor environment for a long time.
Therefore, for solar street lights, it does have more advantages than traditional street lights. It can not only give full play to the functional characteristics of use, but also has a better effect on the environment and energy saving. The most important thing is to ensure that the service life is very long and can work normally in various field environments.
advantage:
Energy-saving: Solar street lights use natural light sources in nature to reduce electrical energy consumption; environmentally friendly, solar street lights are pollution-free and non-radiation, in line with modern green environmental protection concepts; durable, most of the current solar cell module production technologies are sufficient to guarantee 10 There is no degradation in performance for more than a year, and solar cell modules can generate electricity for 25 years or longer; maintenance costs are low. In remote areas far away from towns, the cost of maintaining or repairing conventional power generation, power transmission, street lights and other equipment is very high. Solar street lights only require periodic inspections and very little maintenance workload, and their maintenance costs are less than conventional power generation systems.
Safety: Mains lighting street lights may have potential safety hazards due to various reasons such as construction quality, material aging, and power supply failures. Solar street lights do not use alternating current, but use batteries to absorb solar energy and convert low-voltage DC into light energy. There is no safety hazard; high-tech, solar street lights are controlled by intelligent controllers, which can be based on the natural brightness of the sky and people’s presence within 1d. The brightness of the lamp is automatically adjusted by the brightness required in various environments; the installation components are modularized, and the installation is flexible and convenient, which is convenient for users to choose and adjust the capacity of the solar street lamp according to their own needs; the solar street lamp with independent power supply and off-grid operation has power supply Autonomy and flexibility.
shortcoming:
High cost: The initial investment of solar street lights is large. The total cost of a solar street light is 3.4 times that of conventional street lights with the same power; the energy conversion efficiency is low, and the conversion efficiency of solar photovoltaic cells is about 15% to 19%. In theory, the conversion of silicon solar cells The efficiency can reach 25%, but after the actual installation, the efficiency may be reduced due to the obstruction of surrounding buildings. At present, the area of solar cells is 110W/m2, and the area of 1kW solar cells is about 9m2. Such a large area is almost impossible to fix on light poles, so it is still not applicable to expressways and main roads; it is greatly affected by geographical and climatic conditions. Because of the dependence on the sun to provide energy, the local geographic climate and weather conditions directly affect the use of street lights.
Insufficient light demand: Long cloudy and rainy days will affect the lighting, causing the illuminance or brightness to fail to meet the requirements of the national standard, and even fail to turn on. The solar street lights in the Huanglongxi area of Chengdu are insufficient during the day, leading to the night time Too short; component service life and low cost performance. The price of the battery and the controller is relatively high, and the battery is not durable enough and must be replaced regularly. The service life of the controller is generally only 3 years; the reliability is low. Due to the excessive influence of external factors such as climate, the reliability is reduced. 80% of the solar street lights on Binhai Avenue in Shenzhen cannot rely on sunlight alone, which is the same as Yingbin Avenue in Dazu County, Chongqing. They all use the dual power supply mode of city electricity; management and maintenance are difficult.
Maintenance difficulties: the maintenance of solar street lights is difficult, the quality of the heat island effect of the solar panels cannot be controlled and tested, the life cycle cannot be guaranteed, and the unified control and management cannot be performed. There may be different lighting conditions; the illumination range is narrow. The currently used solar street lights have been inspected by the China Municipal Engineering Association and measured on the spot. The general illumination range is 6-7m. If it exceeds 7m, it will be dim and unclear, which cannot meet the requirements of expressway, The needs of main roads; solar street lighting has not yet established industry standards; environmental protection and anti-theft issues, and improper handling of batteries may cause environmental issues. In addition, anti-theft is also a big problem.
Post time: Dec-21-2021