Views: 2 Author: Site Editor Publish Time: 2024-04-30 Origin: Site
Recently, the government work reports of the two sessions proposed the development goal of accelerating the construction of a new energy system, providing authoritative policy guidance for the promotion of lighting consumption reduction technology and green energy lighting equipment nationwide.
Among them, new energy lighting fixtures that are not connected to the commercial power grid and use independent power generation devices to provide energy applications, as an important member of the new energy system, have become important products for urban lighting management departments and lighting fixture consumers to achieve zero energy consumption costs, and are also the future mainstream development direction of green lighting technology.
So, what are the current development forms in the field of new energy lighting? Following what development trend? In this regard, Zhongzhao Network showcases the hot trends of the four major new energy lighting markets in recent years, analyzes their interconnectivity and respective advantages and disadvantages in application popularization, and provides reference directions for the realization of energy-saving and low-carbon development goals in the lighting industry.
Solar lighting
With the increasing scarcity of Earth's resources, the investment cost of basic energy is increasing, and various safety and pollution hazards are ubiquitous. In recent years, with the urgent demand from various sectors of society for clean lighting energy and low-cost lighting electricity, solar lighting has emerged as the initial off grid lighting mode in the new energy era.
Solar lighting devices can convert solar energy into thermal energy to generate steam, which is then converted into electrical energy through a generator and stored in a battery. During the day, solar panels receive solar radiation and convert it into electrical energy output, which is stored in the battery through a charging and discharging controller; At night, when the illuminance gradually decreases to around 101ux and the open circuit voltage of the solar panel is around 4.5V, the charge and discharge controller detects this voltage value and acts to discharge the battery, providing the necessary electricity for the operation of the light source and other lamp equipment.
Compared to the complex installation of grid lighting fixtures, outdoor solar lighting fixtures do not require complex wiring. They only need to be made into a cement base and fixed with stainless steel screws, making installation simple; Compared to the high electricity bills and high maintenance costs of commercial lighting fixtures, high-power solar lighting fixtures can achieve free electricity bills without any maintenance costs, and only need to pay the purchase and installation costs in one go. In addition, solar powered lighting fixtures are also ultra-low voltage products, which operate safely and reliably. There are no safety hazards caused by aging of grafting circuit materials and abnormal power supply of commercial lighting fixtures.
Due to the strong economic cost-effectiveness brought by solar lighting, it has spawned different application forms, from high-power street lights and courtyard lights, to small and medium-sized outdoor signal lights, lawn lights, landscape lights, signage lights, insecticidal lights, as well as household indoor lighting and mobile lighting fixtures represented by flashlights, all of which are supported by solar lighting technology. Among them, solar street lights are the most popular solar powered lighting fixtures in the current market demand.
According to authoritative institution analysis data, the domestic solar street light market size was 16.521 billion yuan in 2018, and has increased to 24.65 billion yuan by 2022, with an average annual growth rate of about 10%. Based on this market growth trend, looking ahead to 2029, the market size of solar street lights is 45.32 billion yuan.
From a global market perspective, authoritative data analysis also shows that the global scale of solar street lights reached $50 billion in 2021 and is expected to reach $300 billion by 2023. Among them, the market size of this type of new energy lighting products in Africa continued to expand from 2021 to 2022, and the number of installations increased by 30% in these two years. It can be seen that solar street lights can bring strong market economic growth momentum to underdeveloped regions around the world.
From the perspective of enterprise scale, according to incomplete statistical data found by enterprises, there are a total of 8839 solar street light manufacturers in China. Among them, Jiangsu Province occupies the top spot with a huge numerical advantage of 3843, far ahead; Guangdong Province closely follows in terms of quantity. In this development trend, Zhongshan Ancient Town in Guangdong Province and Gaoyou, Changzhou, and Danyang in Yangzhou, Jiangsu Province have become the top four solar street lamp production bases in China.
It is worth noting that well-known domestic lighting companies such as OPP Lighting, Leishi Lighting, Foshan Lighting, Yaming Lighting, Sunshine Lighting, and Sansi, as well as international lighting companies such as Xinnuofei, Osram, and General Electric that have entered the domestic market, have made detailed market layouts for solar street lamps and other solar lighting products.
Although solar lighting fixtures have a strong market momentum due to the lack of concerns about electricity costs, the solar panels and batteries they carry require more components to support their operation, with complex designs and high manufacturing costs. Therefore, compared to commercial lighting fixtures, their prices will also be higher. More importantly, the energy consumption mode of solar lighting fixtures is to use solar energy to generate thermal energy, which is then converted into electrical energy. During this process, some energy consumption will be lost, and the energy efficiency utilization rate will naturally decrease. The lighting efficiency will also be partially affected.
Under such functional requirements, solar lighting products need to evolve into new functional forms in the future in order to continue their strong market trend.
