Replacing traditional lights with LED lights in buildings and streets can save up to 80% of energy.

Associate Professor Dr. Nguyen Hong Tien, Chairman of the Vietnam Lighting Association, stated that green lighting consists of three components: high-efficiency LED light sources, intelligent lighting control systems, and the use of clean energy. This model offers comprehensive benefits in terms of economics , the environment, and human health.

“Economically, green lighting systems using LEDs require only about 10-20% of the electricity compared to traditional lighting devices. The average lifespan of LEDs is 30,000 to over 50,000 hours, significantly reducing replacement and maintenance costs. From an environmental perspective, LEDs contain almost no harmful substances, are recyclable, and help cut carbon emissions by up to one-third compared to many traditional lights. In addition, their long lifespan contributes to material savings by reducing the need for frequent replacements,” Associate Professor Dr. Nguyen Hong Tien analyzed. He also believes that optimizing lighting efficiency not only helps reduce costs but also improves the quality of life, while contributing to a harmonious and modern urban landscape.

In the context of urban development towards green, smart, and sustainable growth, smart lighting systems play a crucial role in building modern cities. Many cities nationwide, such as Hanoi , Ho Chi Minh City, Can Tho, and Da Nang, have implemented green lighting projects using LED technology on various scales. Replacing traditional lights with LEDs in buildings and streets saves up to 80% of energy. Simultaneously, public lighting systems are remotely controlled via IoT software, allowing for programming of on/off times, adjustment of light intensity, and integration of many other smart functions.

In Hue , the Hue Urban Environment and Construction Joint Stock Company (HEPCO) manages and operates the city's street lighting system, illuminating over 478km of main streets (98% coverage) and 242km of alleys and lanes (65% coverage). Hue currently has the highest percentage of LED streetlights in the country, with approximately 18,864 LED bulbs, accounting for about 68% of the total number of bulbs used in the city.

Mr. Hoang Van Tien, Director of the Lighting Enterprise under HEPCO, shared that to control the large-scale lighting system, HEPCO operates a large-scale public lighting control and monitoring center, connected to 341 lighting cabinets, using GSM/GPRS/3G wireless communication technology. Therefore, connection and control from the center to the cabinets throughout the city are almost instantaneous, allowing lights to be switched on and off according to the city's daily weather changes. HEPCO is also responsible for the decorative lighting systems at Truong Tien Bridge, Ky Dai, and the Imperial Citadel at night, adding a highlight and a modern look to the city.

Efforts in developing green lighting have helped Hue save energy, reduce emissions, and beautify the urban landscape at night. The city not only creates a green, clean, and bright space, harmonizing modernity and identity, but also affirms its pioneering role in the trend of sustainable urban development, becoming a model worth emulating for many other localities.

Text and photos: DANG TRINH

Source: https://huengaynay.vn/kinh-te/chieu-sang-xanh-cho-do-thi-157127.html