Historical opportunity for solar street lights


Solar street lights should not only illuminate rural roads in mountainous areas, but a new generation of solar street lights is entering urban traffic arteries, partially replacing mains street lights, which is a development trend, and this trend is becoming more and more obvious.

Recently received several good news, Jiangsu “Kaiyuan” company Jinhua Internet of Things solar street lamp project acceptance (see above), Jiangsu “Boya” completed Xi ‘an solar street lamp project, Harmony Jiangsu Company Qidong Binhe solar street lamp project completed, Shandong Zhiao and other companies participated in Guorao solar street lamp project completed, On April 22 this year, Japanese people visited the photovoltaic street lamp project undertaken by Beijing Lingyang Weiye in Beijing Economic Development Zone (see above). Most of these photovoltaic street lamps are used in urban traffic trunk roads, which is pleasing. Solar street lights should not only illuminate rural roads in mountainous areas, but a new generation of solar street lights is entering urban traffic arteries, partially replacing mains street lights, which is a development trend, and this trend is becoming more and more obvious. Members of the new energy lighting committee enterprises should be fully prepared, carry out strategic planning, to complete the reserve of system technology, the improvement of manufacturing capacity, improve the supply chain and industrial chain, prepare for the outbreak of the incremental market.

Since 2015, the large-scale application of LED light source street lighting has been relatively mature, and China’s road lighting has entered a new stage. However, from the perspective of the application of national street lights, the penetration rate of LED street lights is less than 1/3, and many first-tier and second-tier cities are basically dominated by high-pressure sodium lamps and quartz gold halide lighting sources. With the acceleration of the process of carbon emission reduction, the replacement of high-pressure sodium lamps by LED street lights is an inevitable trend in the development of road lighting. This replacement will appear in two situations: first, LED light source street lamps replace some high-pressure sodium lamps; Second, solar LED street lights replace some high-pressure sodium street lights.

Also in 2015, lithium batteries began to be applied to photovoltaic street energy storage on a large scale, improving the quality of energy storage, and the application of supercapacitors was earlier. The progress of energy storage technology has spawned the combined high-power photovoltaic street lights. In December 2017, Changsha Dongzhu Expressway 12.3km, two-way 6-8 lanes, took the lead in the use of “Hunan Naipuen Company” developed 240-watt combined high-power photovoltaic street lamps, is the first solar street lamp project using all supercapacitor energy storage; In 2016, Anhui Longyue Company won the bid for G104, two-way eight lanes, and installed 180 watts of high-power photovoltaic street lights; In August 2020, Shandong Zhiao successfully developed copper indium gallium selenium soft film module and light pole integration, single system high-power, 150 solar street lights in Zibo West 5th road overpass to take the lead in the application of a new stage of single-system high-power photovoltaic street light application – the main road lighting stage, which is remarkable. Its biggest feature is to achieve a single system high power. After the soft film, there was the integration of monocrystalline silicon and lamps, monocrystalline silicon, imbricated components and lamp poles. A technical reserve was completed to replace some of the 12-meter-high street lights with mains power.

This structure of 12 meters high solar street lights compared with the mains street lights, has many advantages, as long as the lighting conditions in the right place can completely replace the mains street lights, single system power up to 200 to 220 watts, if the use of 160 to 200 lumen LED light source, can be applied to the ring highway, expressways and other two-way more than six lane road lighting. There is no need to apply for mains power quota, no need to lay cables, no need to transformer, no need to move earth and backfill, if designed according to the standard, it can fully meet the energy storage needs of seven rainy, fog and snow days, and the life span is as long as three years, five years, eight years; Solar street energy storage 3-5 years to promote the use of lithium batteries, 5-8 years can use supercapacitors. The current controller technology can not only monitor whether the feedback working status is on, but also access a professional management platform to provide big data on power consumption and energy storage status for carbon emission reduction and carbon trading.

Solar street lights can replace mains street lights is a major new energy lighting technology progress, welcome congratulations. This is not only the social development of environmental protection, energy conservation and emission reduction needs, but also the needs of the street lamp market, but also the opportunity provided by history. Not only is the domestic market facing a lot of substitution, but the international market is even more so. Under the environment of global energy shortage, energy structure adjustment and carbon reduction, solar lighting products are more favored than ever before. At the same time, a large number of garden lights and landscape lights are also in urgent need of upgrading.

As the ancients have said: “success depends on thinking and destroying with”, “everything is set up in advance.” It is suggested that enterprises should reserve the design and manufacturing of high-power street lamps and system technology for the integration of components and light poles, and the integration of components and lamps as soon as possible to meet the arrival of the major replacement stage of street lamps.