Shanghai promotes energy-saving renovation of road lighting

August 24, 2022

In June this year, Shanghai carried out a pilot project of LED lighting renovation on the section of Yixian Road Elevated Road near Jungong Road and Tongji Road Elevated Road near Haijiang Road, taking into account energy saving and brightening, and replaced 75 sets and 63 sets of lamps respectively.

It is understood that Shanghai will vigorously promote the energy-saving renovation of road lighting, and plans to replace about 701,400 LED lamps within three years, and will basically achieve full coverage of the city's road lighting LED lamps in 2023.

At present, the total number of existing road lighting facilities in Shanghai is about 825,400, and the annual electricity consumption is about 780 million kWh. Among them, about 701,400 light sources are high-pressure sodium lamps, accounting for 85% of the total. "Compared with new LED light sources, high-pressure sodium lamps have disadvantages such as high energy consumption, short service life, low color rendering index, and dim light efficiency." The relevant person in charge said that most of the high-pressure sodium lamps in stock have exceeded the service life.

In this regard, the Shanghai Municipal Housing and Urban-Rural Construction Management Committee formulated the "Shanghai Three-Year Action Plan for Promoting Energy-Saving Renovation of Road Lighting Facilities (2021-2023)", which regards the energy-saving renovation of road lighting facilities as accelerating green development, promoting the conversion of new and old kinetic energy, To achieve the important content of high-quality development, and gradually build a safe, comfortable, intelligent and green functional lighting system.

According to the "Shanghai Three-Year Action Plan for Promoting Energy-Saving Renovation of Road Lighting Facilities (2021-2023)", by the end of this year, Shanghai will complete the replacement of about 250,000 LED lamps, and complete elevated expressways, bridges and tunnels across the river, and underpasses. . City-managed highway lighting facilities renovation, the completion of district-managed lighting facilities renovation is not less than 25% of the facilities within the jurisdiction. At the same time, carry out the upgrading and transformation of road lighting control equipment and the improvement and improvement of the control system, and basically realize the intelligent control of road lighting.

It is understood that the goal of this renovation is to save energy and reduce emissions, and to ensure road safety as the bottom line. In accordance with the principles of "government-led, enterprise collaboration, energy-saving priority, quality-oriented, coordinated promotion, and graded implementation", combined with the renewal of road lighting facilities , and gradually achieve the goal of replacing about 701,400 LED lamps within three years, of which 18,000 lamps are replaced by combining overhead lines into the ground and pole box renovation, basically achieving full coverage of the city's road lighting LED lamps.

After the transformation is completed, the city can save about 350 million kWh of electricity every year, which is equivalent to saving 117,000 tons of standard coal and reducing carbon dioxide emissions by 350,000 tons per year.

In addition to achieving the effect of energy saving and emission reduction, the energy-saving renovation of road lighting in Shanghai can also reduce maintenance and repair 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 safety, and reduce the occurrence of traffic accidents." said the relevant person in charge.

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