High-power solar road and landscape lighting technology and market analysis

Solar energy is an inexhaustible source of energy. Although the energy radiated by the sun to the earth's atmosphere is only 1/2.2 billion of its total radiation energy (about 3.75×1026W), it is as high as 173,000TW, which means that the energy radiated by the sun to the earth every second is equivalent to 5 million tons of coal. Solar energy is both a primary energy and a renewable energy. It is rich in resources, can be used for free, does not require transportation, and does not pollute the environment. With the development of new technologies and new materials, human beings are making higher and higher use of solar energy, and the emerging solar energy industry has unlimited development prospects.

As an important part of the solar energy industry, the photovoltaic lighting industry has a bright future. Solar photovoltaic lighting technology is a comprehensive application of solar cell technology and LED technology. The photovoltaic lighting industry is the intersection of the solar photovoltaic power generation industry and the LED lighting industry. It mainly uses solar photovoltaic power generation to generate electricity and applies the electricity to LED lighting, thus generating a variety of lighting applications and realizing "green lighting" in the true sense.

2010 is regarded as the first year of LED lighting. According to the Industrial Economics and Trends Research Center (IEK) of the Industrial Technology Research Institute of Taiwan, the global LED lighting market size was about US$2.85 billion in 2009 and about US$4 billion in 2010. Its main application is still in the field of architectural lighting. With the promotion of national policies, the growth of the global economy, especially emerging markets, the expansion of LED production capacity and the decline in product unit prices, as well as the expansion of application scope, the total size of the LED lighting market will reach US$13.7 billion in 2013. The annual compound growth rate of LED lighting market capacity is expected to reach 49% from 2008 to 2013, and the global LED lighting market size is estimated to grow to US$28.8 billion by 2015.

In 2010, solar photovoltaic lighting fixtures accounted for about 25% of the entire LED lighting market. With the development of the market and the promotion of policies, by 2013, solar photovoltaic lighting fixtures are expected to account for more than 30% of the entire LED lighting fixture market, with a market size of more than US$4 billion.

At present, photovoltaic lighting technology has begun to be applied to outdoor lighting applications at home and abroad. Among them, road lighting and outdoor low-power landscape lighting are the most important market segments of the photovoltaic lighting industry, accounting for about 90% of the entire photovoltaic lighting market. Among them, the representative products of outdoor low-power landscape lighting are solar lawn lights and their matching low-power solar garden lights . At present, solar lawn lamps account for more than 50% of the solar photovoltaic lighting market, and the global market size in 2010 was about US$538 million; with the improvement of photovoltaic lighting technology and the promotion of energy-saving and environmental protection policies, as well as the substitution effect of solar lawn lamps on traditional lawn lamps, solar lawn lamps will maintain an average annual growth of about 50% in the next few years, and the global market size will reach US$1.814 billion by 2013.

At present, the most representative products of high-power solar road landscape lighting are solar street lights , solar garden lights and solar landscape lights. With the development of solar cell technology and LED lighting technology, high-power solar road landscape lighting has been applied in some branch road lighting, community courtyard road lighting, park scenic road lighting and other fields, achieving good energy-saving effects. In addition, driven by the Shanghai World Expo and the Guangzhou Asian Games, a large number of solar road lighting products have been more widely used and recognized by the society.

1. Analysis of the market size of solar street lights

According to the forecast of LEDinside, an LED industry research organization, although street lamp standards are not yet complete and product specifications still need to be formulated according to different local needs, LED street lamps are gradually showing a modular trend, and the intelligent control system of LED street lamps will be more complete. It is estimated that the number of LED street lamps installed worldwide in 2010 will be about 870,000, an increase of 42.62% from 610,000 in 2009.

LEDinside research report shows that in 2009, the number of LED street lamps installed in China was about 250,000, and in 2010, the Chinese LED street lamp market will increase by 60% to more than 400,000.

In 2010, the output value of solar LED street lights was approximately US$261 million. In the future, the solar LED lighting field will maintain an annual growth rate of more than 60%, and the proportion of solar LED street lights will gradually increase. By 2013, the global solar LED street light market size will exceed US$1 billion.

2. Analysis of the market size of solar landscape lighting

Solar landscape lighting fixtures include landscape lighting fixtures for park scenic area roads and garden lighting fixtures for community families. Compared with the development of solar street lights, its initial stage was mainly driven by government forces, but due to the limitations of solar cells and LED lighting technology at the time, the cost of solar landscape lighting fixtures was relatively high and the market size was relatively small. Due to the characteristics of solar landscape lighting fixtures, such as safety, energy saving, easy installation, low maintenance cost, no need for manual control, and the ability to be used in areas without electricity, coupled with subsequent technological breakthroughs and reduced costs, they have also been rapidly applied and promoted in recent years. At present, more and more residential communities, parks, clubs, and scenic area roads are beginning to use solar garden lights and solar landscape lights for lighting. In the future, with the development of photovoltaic lighting technology and the reduction of production costs, solar landscape lighting fixtures will be promoted faster than solar street lights.

Taking American households as an example, the United States currently has about 128 million households, with a total of about 3-5 million acres of lawns. According to a report from saf EL aws.org, there are about 103.9 million households in the United States with lawns. If each household with an independent lawn installs two solar garden lights, there are about 208 million solar garden lights.