In the night of the city, street lights are like guides for night walkers, silently but powerfully guaranteeing traffic safety and escorting people’s night travel. However, when faced with the choice between solar street lights and traditional street lights, this seemingly simple decision becomes complicated.
solar led street lights
Traditional street lights seem to be affordable at first glance, but there are many cost pitfalls hidden behind them. Installation, the need for a large number of wiring and electrical construction, which not only requires a team of professional electricians, but also involves digging and burying lines and other complex processes, installation costs remain high. Put into use, relying on the grid power supply of traditional street lights, with the fluctuation of energy prices, electricity expenses increase year by year. Moreover, the limited life of the bulb, electrical failures are frequent, regular maintenance and replacement costs should not be underestimated.
Although the initial acquisition cost of solar street light is high, but in the long run, the advantages are obvious. It utilizes solar energy to convert into electricity without paying electricity bills, and this free source of energy saves a huge amount of money for long-term operation. In terms of installation, the modular design makes it easy to install, only simple splicing, without complex wiring, reducing labor and material costs. In terms of maintenance, the solar street light is also very hassle-free, with occasional cleaning of the panels, and its solar panels and batteries have a long service life, which reduces the cost of frequent replacement of parts.
| Street Light Type | Installation Cost ($) | 10 Years Total Cost ($) |
| Traditional Street Light | 1200 | 4000 |
| Solar Street Light | 1500 | 2000 |
It can be clearly seen from the table data, in the 10-year life cycle, the total cost of solar street light is much lower than the traditional street light, and the long-term investment value is higher.
Solar street light adopts modular design, each component is independent and easy to assemble, as simple as building blocks, ordinary workers can complete the installation without professional electricians. The whole process does not require special tools, which greatly shortens the installation time and labor cost. When installing the solar street light, the pole is firstly bolted to the Precast foundation, then the solar panel bracket is installed on the top of the pole, and then the solar panel is fixed on the bracket and connected to the wires. Then install the lamps and batteries, and finally debugging can be done. For the whole installation process, a team of skilled workers can install 10-15 solar street lights in one day.
In contrast, the installation of traditional street lights is much more complicated. In order to connect to the power grid, large areas of ground excavation and cable laying are required, and the wiring work is delicate and dangerous, and must be operated by experienced professional electricians. The construction process is not only time-consuming and labor-intensive, but also requires a lot of manpower, as well as the installation of transformers, distribution cabinets and other additional equipment, further increasing the difficulty and cost of installation.
solar street light
In the traditional street light installation process, digging cable trench should pay attention to avoid underground water pipes, gas pipes and other pipelines, once the consequences of digging off unimaginable. And cable laying is completed, but also need to carry out rigorous insulation testing, grounding test and a series of electrical testing work to ensure that the installation quality in line with safety standards. Throughout the installation process, a team of professional electricians may only be able to install 3 – 5 traditional street lights a day.
Solar street lights require almost no maintenance after installation. To ensure the light effect, only need to wipe the lamp shell occasionally. Tilt-mounted solar panels are able to wash away dust with rainwater, and their panels and batteries are stable and only need to be replaced at the end of their service life. Usually, the housing of solar street light is made of PC material with high transmittance and UV resistance, which is not easy to be stained with dust, and even if it is stained with dust, it can be kept clean under the washing of rainwater. Solar panels are generally installed at an angle of 30 – 45 degrees, such a tilt angle is conducive to rainwater to wash away the dust on the surface. For dusty areas, manual cleaning can be arranged only 1-2 times a year, using soft brushes and water to complete the cleaning work.
Traditional street lights require regular maintenance and continuous monitoring. Damaged lighting, fittings and old wires need to be replaced in a timely manner, a process that involves some safety risks. At the same time, you need to be on the lookout for cable faults, regularly overhaul the fuse box and distribution box to ensure that the cables are properly connected, making maintenance work cumbersome and costly.
Traditional street light fixtures in the use of the process, due to the high temperature of the bulb baking and the wind and sun, the lamps and lanterns shell is easy to aging, rupture, and need to be replaced in a timely manner. The aging wire is not only prone to short-circuit failure, but also may cause fire, so it needs to be regularly checked and replaced. According to statistics, the average number of maintenance times of traditional street lamps per year is 3 – 5 times, and the cost of each maintenance according to the different failure conditions ranges from 500 – 2,000 yuan.
Solar street light is equipped with LED bulbs, which can emit high-quality bright light, significantly improve road visibility and reduce the incidence of traffic accidents.The long service life of LED bulbs reduces the safety hazards caused by frequent replacement. In addition, the battery-powered mode allows for continuous illumination during grid outages, ensuring road safety in emergencies, and the LED bulbs have a high luminous efficacy that is 2 – 3 times brighter than traditional high-pressure sodium lamps for the same amount of power. Moreover, the high color rendering index of LED bulbs can more realistically reproduce the color of objects, allowing drivers and pedestrians to more clearly identify road conditions and the surrounding environment. For example, in foggy or rainy days, the lighting effect of LED street lights is significantly better than traditional street lights, which can effectively reduce traffic accidents.
Traditional street lights rely on the power grid to supply electricity, and once the power goes out, the street is instantly plunged into darkness, increasing the safety risks for pedestrians and vehicles. Moreover, the construction activities during the installation and maintenance process, such as digging and burying wires, etc., will cause interference with traffic and easily lead to safety accidents. In some old urban areas, due to the aging of the power grid, power outages often occur during the summer peak season. Once the traditional street lights are out of power, pedestrians and vehicles on the road are obstructed, and collisions are likely to occur. In addition, the construction area during the installation and maintenance of traditional street lights requires the installation of warning signs and fences, but even so, traffic accidents may still be caused by improper operation of construction personnel or negligence of drivers.
solar street light
Traditional street lamps often use incandescent or high-pressure sodium lamp technology, these lamps need frequent maintenance and replacement of light bulbs, not only increase the cost, but also shorten the actual service life of the lamps and lanterns, frequent replacement of the waste generated by the pressure on the environment. The service life of incandescent lamps is generally 1000 – 2000 hours, and although the service life of high pressure sodium lamps is relatively long, it is only 2000 – 5000 hours. Frequent replacement of light bulbs not only requires a lot of labor and material resources, but also in the process of replacement, other parts of the lamps and lanterns are also prone to damage, thus shortening the service life of the entire lamps and lanterns. At the same time, used bulbs contain mercury and other hazardous substances, which can pollute soil and water if not handled properly.
Solar street light adopts advanced LED technology, and its bulb life can reach more than 50,000 hours, which is far more than that of traditional street light. At the same time, the solar panel is robust and can efficiently convert solar energy for decades with minimal performance degradation, providing long-term stable lighting services.The long life of LED bulbs is due to its solid-state light-emitting principle, with no filament and other wear parts, and can withstand frequent switching and vibration. Moreover, solar panels are made of high-purity monocrystalline or polycrystalline silicon materials, which have good weathering and anti-aging properties. For example, in some desert areas, solar street lights have been operating stably for more than 15 years and still work properly, providing reliable lighting for local roads.
Solar street lights use renewable solar energy as energy source, no carbon dioxide and other pollutants are emitted during the use process, which contributes significantly to the improvement of air quality and mitigation of climate change. There is no need for wiring and digging when installing, which reduces the generation of construction waste. During its service life, the amount of waste generated is minimal, in line with the concept of sustainable development. It is estimated that a traditional street light with a power of 100 watts, assuming 10 hours of lighting per day, produces about 1.6 tons of carbon dioxide emissions per year. A solar street light with the same power produces almost no carbon dioxide emissions during its lifetime. In addition, solar street lights are installed without digging the ground, avoiding the construction of a large amount of construction waste, such as discarded concrete, bricks, cable skins and so on.
solar street lights
Conventional street lights consume electricity from fossil fuels, which generates large amounts of harmful gases and exacerbates air pollution and climate change. Large-scale construction during installation can disrupt ecosystems and damage natural habitats. In addition, the large amount of waste generated by the frequent replacement of components places a heavy burden on the environment.
Most of the electricity consumed by traditional street lights is provided by thermal power plants, which burn a large amount of fossil fuels such as coal and oil in the process of generating electricity, producing harmful gases such as carbon dioxide, sulfur dioxide and nitrogen oxides. These gases not only lead to global warming, but also form acid rain, causing serious harm to the ecological environment and human health. In addition, the excavation construction during the installation of traditional street lights will destroy the surface vegetation, affect the soil structure, leading to soil erosion and other problems.
There are significant differences between solar street lights and traditional street lights in terms of cost, installation, maintenance, safety, lifespan and environmental protection. Solar street lights have become a more sustainable and cost-effective lighting option due to their low long-term cost, easy installation and maintenance, high safety, long life and environmental friendliness. For future lighting project planners, the choice of solar street lights can not only realize considerable cost savings, but also contribute to environmental protection, is a wise move in line with the development of the times. In today’s increasingly tense energy and environmental protection requirements, solar street lights will certainly play an increasingly important role in the field of urban lighting, bringing more convenience and beauty to our lives.
