In April this year, I visited the photovoltaic street lamp project undertaken by Beijing Sun Weiye in Beijing Development Zone. These photovoltaic street lamps are used in urban trunk roads, which was very exciting. Solar-powered streetlights are not only lighting up mountain country roads, they are making inroads into urban arteries. This is a trend that will become more and more obvious. Member enterprises should make full ideological preparation, strategic planning, preparation for a rainy day, to complete the storage of system technology, manufacturing capacity improvement, improve the supply chain and industrial chain.
Since 2015, since the large-scale application of road lighting by LED street lighting, road lighting in our country has entered a new stage. However, from the perspective of the national street lamp application, the penetration rate of LED street lamp is less than 1/3, and many first-tier and second-tier cities are basically dominated by high-pressure sodium lamp and quartz metal halide lamp. With the acceleration of the process of carbon emission reduction, it is an inevitable trend for LED street lamp to replace high pressure sodium lamp. From the reality, this replacement will appear in two situations: one is 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 the energy storage of photovoltaic street lamps, which improved the energy storage quality and resulted in the emergence of combined high-power photovoltaic street lamps. In 2019, Shandong Zhi 'ao successfully developed a solar street lamp which integrates copper indium gallium selenium soft film module and light pole, and has single system high power and can replace the municipal street lamp. In August 2020, this 150-watt integrated street lamp was first applied in the 5th West Road overpass of Zibo, opening a new stage of single-system high-power photovoltaic street lamp application -- arterial lighting stage, which is remarkable. Its biggest feature is to achieve a single system high power. After the soft film appeared the photovoltaic street lamp with the integration of monocrystalline silicon and imbricated module and lamp pole.
This structure of 12 meters high solar street light, compared with the mains street light, found to have a lot of advantages, as long as the lighting conditions in the right place, can completely replace the mains street light, single system power up to the maximum 200-220 watts, if the use of 160 lumens above the light source, can be applied to the fast road ring highway and so on. No need to apply for quota, no need to lay cables, no need to transformer, no need to move earth backfill, if according to the standard design, can fully meet the needs of seven rainy, fog and snow days, 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 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 for carbon emission reduction and carbon trading.
Solar street lamp can replace the mains street lamp is a major lighting technology progress, gratifying congratulations. This is not only the need of social development of energy conservation and emission reduction, but also the demand of the street lamp market, and is the opportunity provided by history. It is not only the domestic market that will face 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 and landscape lights are also facing upgrading.
Post time: Aug-23-2023