Recently, we have received several good news successively, including the acceptance of Jinhua iot solar street lamp project of Jiangsu Kaiyuan Company , the completion of Xi ‘an Solar Street lamp project of Jiangsu Boya, the completion of Qidong Riverside solar Street lamp project of Hanni Jiangsu Company, and the completion of Guorao solar Street lamp project participated by Shandong Zhiao and other companies. On April 22, this year, Japanese people visited the photovoltaic street lamp project undertaken by Beijing Lingyang Weiye in Beijing Economic Development Zone. Most of these photovoltaic street lamps are used in urban traffic trunk roads, which is very exciting. Solar streetlights are not only lighting rural roads in mountainous areas, but a new generation of solar streetlights is moving into urban arteries, partly replacing mains streetlights. This is a growing trend. Members of the new energy lighting committee enterprises should make full preparations, carry out strategic planning, complete the reserve of system technology, improve the manufacturing capacity, improve the supply chain and industrial chain, and prepare for the explosion of the incremental market.

Since 2015, the road lighting of LED light source has been widely used, and the road lighting in our country has entered a new stage. However, from the perspective of the national street lighting application, the penetration rate of LED street lighting is less than 1/3, and many first-tier and second-tier cities are basically dominated by high pressure sodium lamp and quartz gold halide light source. With the accelerated process of carbon emission reduction, it is an inevitable trend that LED street lamp replaces high pressure sodium lamp. This replacement will appear in two situations: first, LED light source street lamp replaces part of high pressure sodium lamp; Second, solar LED street lamps replace part of high pressure sodium street lamps.

It was also in 2015 that lithium batteries began to be applied to photovoltaic street lamp energy storage on a large scale, which improved the energy storage quality. Supercapacitors were applied earlier. The progress of energy storage technology gives birth to the combined high power photovoltaic street lamp. In December 2017, Changsha Dongzhu Expressway, 12.3km, 6-8 lanes in both directions, took the lead in adopting 240-watt combined high-power photovoltaic street lamps developed by “Hunan Naipuen Company”, which is the first solar street lamp project that all uses supercapacitor energy storage. In 2016, Anhui Longyue Company won the bid of G104, two-way eight lanes, 180 watt high-power photovoltaic street lamps installed; 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 lamp was first applied in West 5th Road overpass, Zibo, opening a new stage of single-system high-power photovoltaic street lamp application — the stage of main road lighting, which is remarkable. Its biggest feature is to achieve a single system high power. After the soft film appeared monocrystalline silicon and lamps integration, monocrystalline silicon, imbricated module and lamp pole integration high power photovoltaic street lamp. A technical reserve was completed for 12 meter high street lamps to replace some of the available mains electricity.

This structure of 12 meters high solar street lights compared with the mains street lights, has a lot of 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 fully applied to the ring highway, expressway and other two-way road lighting more than six lanes. 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 according to the standard design, it can fully meet the needs of seven rainy, fog and snow days energy storage, life as long as three years, five years, eight years; The energy storage of solar street lamp is advocated to use lithium battery for 3-5 years, and super capacitor can be used for 5-8 years. The current controller technology can not only monitor and feedback whether the working state is on or not, but also connect to a professional management platform to provide big data of power consumption and energy storage state for carbon emission reduction and carbon trading.

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

The ancients said: “success depends on thought and destruction”, “everything is made in advance.” It is suggested that enterprises should reserve the design, manufacture and system technology of the integration of components and lamp poles and components and lamps as soon as possible to meet the arrival of the major replacement stage of street lamps.