The road lighting fixtures in Shanghai are undergoing energy-saving transformation. Shanghai will basically achieve full coverage of the city's road lighting led lamps by 2023. After the completion of the transformation, the city can save about 350 million kilowatt hours of electricity every year. If 3000 kilowatt hours of electricity is equivalent to 1 ton of standard coal, it is equivalent to saving 117000 tons of standard coal every year and reducing 350000 tons of carbon dioxide emissions.
According to statistics, the total number of road lighting facilities in Shanghai is about 825400, and the annual power consumption is about 780 million kilowatt hours. Among them, about 701400 light sources are high-pressure sodium lamps, accounting for 85% of the total. "Compared with the new type of led light source, the high-pressure sodium lamp has the disadvantages of high energy consumption, short service life, low color rendering index and dim lighting effect." Yin Wei, the Lighting Department of Shanghai Integrated Management Center, said that most of the existing high-pressure sodium lamps have exceeded their service life. In recent years, led lamps have been used in the new road lighting facilities in Shanghai.
According to the plan, Shanghai plans to replace about 701,400 led lamps in the three years, including 18,000 lamps combined with overhead line grounding and pole box renovation, to basically achieve full coverage of the city's road lighting led lamps. At the same time, improve the road lighting facilities management information platform, improve the road lighting intelligent remote control system, and establish a road lighting energy consumption assessment mechanism.
In 2022, Shanghai will complete the replacement of about 250000 LED lamps, and complete the transformation of the lighting facilities of the city's elevated expressway, river crossing bridge and tunnel, underpass, and municipal roads. The amount of the transformation of district managed lighting facilities will not be less than 25% of the amount of facilities in the jurisdiction.
After three years of reconstruction, the road lighting in Shanghai not only has obvious energy-saving and emission reduction effects, but also can reduce maintenance costs and improve the quality of road lighting. "The service life of the new LED lamps is 4-6 times that of the high-pressure sodium lamps, which can effectively reduce the failure rate of road lighting, reduce the repair rate and complaint rate of road lighting. At the same time, the color rendering index of the new LED lamps is 3-4 times that of the high-pressure sodium lamps, which can effectively improve visual clarity, improve road traffic safety, and reduce traffic accidents."
