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Development Trend Analysis Of Solar LED Street Lamp Application
- Aug 31, 2017 -

At present, lighting consumption accounted for about 20% of the total power consumption, reducing lighting power is an important way to save energy. To achieve this goal, the industry has studied and developed a variety of energy-saving lighting appliances, and achieved some success. However, from the "green lighting" requirements are still far away, the development and application of more efficient, reliable, safe, durable new light source is imperative.
According to estimates, the total number of existing street lamps in China is about 100 million, and the annual growth rate of 20%, 2008 new high-power LED street lamp 20 million. If these 100 million lamps can be converted into 60 million 250-watt street lamps, and then assume that the 60 million street lamps are all converted into solar power LED street lamps, then total can save 15 Million-kilowatt power. It is assumed that each street lamp works 12 hours a day and will save 65.7 billion kwh of electricity in 1 years. The Three Gorges hydropower station in 2007, the total power generation of 61.603 billion degrees of electricity. As a result, the whole country's street lights will be changed to solar-powered streetlights in a year. The electricity generated by the Three Gorges hydropower station is more than one year. This is an extremely alarming number. Even if not to transform the original street lamp, now the annual New street lamps about 20 million, three new 60 million, the same method of calculation, three years later can also save a three Gorges power station. There is no need to mobilize national power, invest hundreds of millions of, and emigrate millions to achieve it.
Not only that, solar energy is a clean, renewable energy source that saves electricity and reduces carbon dioxide emissions. Each 250-watt high-pressure sodium lamp will produce 1290 kilograms of carbon dioxide in a year, so 60 million streetlights will be reduced to 77.4 million tonnes of carbon dioxide after they are converted to solar streetlights. So after the conversion to solar energy, not only to save electricity, but also to save carbon dioxide reduction costs. The cost of reducing carbon dioxide per tonne is $345-404. Cutting 77.4 million tonnes of carbon dioxide is equivalent to saving $31 billion in carbon-dioxide reduction costs!
The preceding number is just a comparison of high-power led streetlights and high pressure sodium lamps. For the same 100W high power LED street lamps, the use of alternating current and solar energy-saving comparison, just to the above data divided by 2.5 can be obtained. In other words, 60 million of the 100 watt high-power LED street lamps, if all the use of solar power, can be compared to the use of AC power to save 26.28 billion degrees of electricity, and carbon dioxide emissions cost of $12.4 billion.
In the western part of China, the non main road solar street lamp, solar garden lights gradually become scale. With the vigorous development of solar lamps, "green lighting" will become a trend.

Solar cell light efficiency is gradually improving, and the price will gradually reduce, the same market LED light efficiency is increasing rapidly, but the price is declining. Compared with renewable energy, clean pollution and environmental energy saving of LED, conventional fossil energy sources are becoming more and more tense and pollute the environment. Therefore, solar LED lighting as a rising outdoor lighting, show us will be infinite vitality and broad prospects.