Analysis of the advantages and disadvantages of the development momentum of solar street lights

In recent years, solar garden lights, landscape lights, road lights and other outdoor lighting have become more and more widely used, and solar street lights are gradually entering people's field of vision. It has been widely recognized by the society for its advantages such as no need to lay cables, no conventional energy consumption, and long service life. Many cities and villages have also begun to promote the use of solar street lights in some areas and some roads in the form of trials or demonstrations. certain effect. However, many industry experts pointed out that there are three major issues that need to be paid attention to in the promotion of solar street lights at this stage. Relevant technology needs to be improved Although the use of solar lamps has become more and more extensive, there are still some problems in the power, light efficiency and service life of solar street lamps. According to experts, for township roads with narrow roads and low lighting requirements, low-power solar street lights can meet the lighting requirements; while on urban roads with higher lighting requirements for street lights, solar street lights cannot meet: light The coverage is narrow, and the brightness isn't uniform enough. In addition, the service life of solar panels also restricts the promotion and use of solar street lights. Experts said that the conversion rate of solar panels is low and the cost is high. If you want the lights to stay on for a longer time, you should improve the configuration and match the components reasonably, instead of simply increasing the battery capacity. Moreover, there are still some artificial shortcomings, such as the randomness of the system configuration, which greatly reduces the service life and lighting effect of the lamps. Relevant experts also pointed out that if solar street lights are to be more widely used, in addition to considering the photoelectric conversion efficiency of solar panels, the local solar radiation time and atmospheric dust should also be considered. To analyze specific problems in detail. Enterprises should develop corresponding lighting products according to the technological development level of solar energy, and cannot blindly develop lighting products that are not suitable for the technical level. The problem of raw material pollution still needs to be solved. The biggest advantage of solar street lights is that they use clean solar energy. Each street light is like a small generator. It absorbs light through solar panels, converts it into electricity, and then saves it into its own. In the battery, there is no need to consume additional power. However, at present, the batteries used in solar street lights are mainly lead-acid batteries, which are mainly composed of lead, sulfuric acid, and some other metals and plastics. The acid solution of waste batteries contains a large amount of lead, and random discharge will not only seriously pollute the soil and water sources , causing damage to the air and ecological balance, and also causing human metabolic and neurological diseases. Experts revealed that the current domestic waste battery disposal and recycling is still in a relatively disorderly state, so many scrapped lead-acid batteries are polluting our living space. The battery used in solar street lights is indeed a potential environmental problem. Some experts believe that this can be easily handled through the recycling mechanism of automobile batteries, which is a point worth considering. At present, another advantage of solar street lights and garden lights is that they are free from wiring. In fact, for some small applications, wiring costs are high. At this time, solar street lights have a comparative advantage.