Under the impetus of the wave of global sustainable development, traditional lighting due to high energy consumption, pollution and other issues gradually show decline, solar street lamps as a new favourite of green lighting rise. Its market share is expanding, is reshaping the lighting field pattern. This article will analyse the advantages of solar street lamps, covering energy use, economic costs, environmental impact and performance and other dimensions, for readers to clearly present its significant advantages over traditional street lamps, to help in the lighting project choice to make a wise and meet the needs of the times.
The energy source of the solar street light comes from the solar panel, which works based on the photoelectric effect. When the sunlight irradiates the solar panel, the semiconductor material inside the panel absorbs the photon energy and excites the electrons to jump, thus generating electric current. This process converts inexhaustible solar energy into electricity, providing continuous energy support for street lights, which perfectly illustrates the concept of sustainable development.
2.Get rid of grid dependence
Unlike traditional streetlights that rely on the grid for power supply, solar streetlights have an independent energy supply system. This feature makes it advantageous in remote areas, areas without grid coverage and areas with unstable power grids. For example, in remote mountainous areas, it is difficult and costly to lay the power grid, while solar street lights can easily achieve lighting, solving the problem of local residents travelling at night, and truly achieving self-sufficiency in lighting.
1.Intelligent control system
Solar street light is equipped with advanced intelligent control system, in which light control, time control and human body induction control are more common. The light control system can automatically switch on and off the street light according to the ambient light intensity, when the sky is dark, the light is lower than the set threshold, the street light is automatically on; after the daybreak, the light is enhanced, the street light is automatically turned off. The time control system can set the street light brightness in advance according to the lighting needs of different time periods, such as late at night when there are fewer cars and fewer people, automatically reduce the brightness to save energy. The human body sensor control can automatically increase the brightness of the street light when someone is near, and restore the original brightness after the person leaves, so as to precisely regulate the energy output and avoid wastage.
2.Energy storage technology support
Advanced energy storage technology provides a strong guarantee for the stable operation of solar street lights. Taking lithium battery as an example, it has high energy density and can store more electricity under the same volume or weight. Moreover, lithium battery has a long life and high charging and discharging efficiency, which can effectively store the electricity collected by solar panels during the day. Even in continuous cloudy days, it can also rely on the stored electricity to ensure stable lighting at night, which greatly improves the stability of the energy use of solar street lights.
The initial investment of solar street light mainly covers the cost of solar panels, lamps, batteries, controllers, poles and other components. The cost of solar panel is affected by the size and conversion efficiency; the lamps and lanterns are mostly made of energy-saving LEDs, and their cost is related to the power and quality; there are various types of batteries, and the cost of lithium batteries is relatively high, but the performance is excellent; the controller is responsible for regulating the electricity, and the cost is relatively fixed; the material and height of the lamp pole determine its cost. Comparing with traditional street lamps, although the cost of some equipment of solar street lamps is higher, traditional street lamps also need additional expenses such as cable laying and transformer purchase.
In some scenes with complicated terrain and no need for large-scale lighting, the initial investment of solar street lights is more reasonable. And solar street light installation process is relatively simple, without the need for large-scale cable laying like traditional street lights, to avoid the complex electrical construction. In complex terrain areas, such as mountains, hills, traditional street lamp cable laying difficulty, high cost, while the solar street light just need to fix the pole, connect the components can be, greatly reducing the installation of labour and material costs, the advantages are obvious.
Solar energy is a clean energy, solar street lights in the entire process, does not produce carbon dioxide and other greenhouse gases. In the global commitment to reduce carbon emissions, to cope with climate warming, the widespread use of solar street lights is of great significance. According to statistics, a 30W solar street light, assuming 10 hours of work per day, 365 days a year, compared with the same brightness of the traditional street lamp can reduce carbon dioxide emissions of about 107.55kg (traditional street lamps consume 1 kilowatt-hour of electricity to produce about 1.1kg of carbon dioxide, 30W street lamps consume 0.3 kilowatt-hour per day, a year of 109.5 kilowatt-hour electricity consumption, carbon dioxide about 120.45kg, zero emission of solar street lights. (kg, solar street lamp zero emission, the difference is about 107.55kg). If promoted on a large scale, it will play a positive role in alleviating global warming.
2.No Harmful Substances
Solar street light components have outstanding environmental performance, LED lamps do not contain mercury and other environmentally harmful substances, avoiding the traditional lamps and lanterns discarded on the soil and water pollution. Solar panels and batteries in the production and disposal of links, the pollution of the environment is far less than traditional energy equipment, in line with the current strict environmental requirements, is the ideal choice for green lighting.
The installation of solar street lights does not require large-scale excavation of land, and will not cause damage to the surface vegetation. This advantage is especially important in ecologically fragile areas such as nature reserves and scenic spots. For example, the installation of solar street lights in national nature reserves can meet the lighting needs, but also maximise the protection of the local ecological balance, to avoid the negative impact on the ecological environment due to the construction of traditional street lights.
Solar street lamps have various designs and rich modelling. From simple modern style to retro elegant style, it can be customised according to the surrounding environment and architectural style. In the historical and cultural district, the ancient solar street lights complement the traditional architecture; in the modern commercial plaza, the novel solar street lights become a bright landscape, not only provide lighting, but also enhance the overall image and quality of the region.
Solar street light has excellent environmental adaptability. Its components are specially designed and processed to work stably under severe climatic conditions such as high temperature, low temperature, heavy rain, sand and dust. In high-temperature areas, the heat dissipation design of solar panels and batteries ensures that their performance is not affected; in cold areas, cold-resistant materials are used to ensure the normal operation of the street light. Even when encountered with heavy rain, sand and dust, the high protection level of the street lamp can be safe and sound, and continue to provide lighting.
The core components of the solar street light are of reliable quality; the long life of LED lamps reduces the probability of failure; the solar panels undergo strict quality testing, and their performance remains stable after many years of normal use; the batteries are of high quality, and have a high number of charging and discharging cycles. In addition, the intelligent control system monitors in real time, and once an abnormality occurs, the alarm will be issued in time, which is convenient for maintenance personnel to deal with it quickly, further reducing the risk of failure and extending the overall service life of the street light.
The intelligent control function of solar street light is powerful and convenient. Users can remotely monitor the working status of the street light through mobile phone APP or computer, and view the power, brightness and fault information of the street light in real time. Users can also remotely adjust the street light switching time, brightness mode and other settings to achieve intelligent management. In urban lighting management, managers can sit in the office to control the street light situation in the whole city, greatly improving management efficiency.
2.Humanised lighting experience
Solar street lamps give full consideration to user needs and provide humane lighting services. In the district road, when there are residents travelling at night, the human body sensing device triggers, the street light automatically increases the brightness and illuminates the road; after the residents leave, the brightness is automatically lowered, which not only ensures safety, but also saves energy. This personalised lighting experience improves user satisfaction and makes people feel more convenience and care when travelling at night.
Solar street light with renewable solar energy in the use of energy to drive, with intelligent and energy storage technology to achieve high efficiency and independent power supply, the economic level of the initial investment in a particular scenario is reasonable and long-term operation with zero electricity and low maintenance cost advantages, the environmental field as a clean energy pollution-free and can protect the ecology, landscaping, and the use of the performance of the show a high degree of reliability, stability, and intelligent and convenient humane design. In the environmental field, as a clean energy source, it can protect the ecology and beautify the landscape. These advantages not only make it become an outstanding practitioner of the concept of sustainable development in the field of lighting, but also provide high-quality and efficient solutions for various types of lighting scenarios, and undoubtedly occupy a key position in the current and future lighting market.
