亚洲 欧美 图片 自拍 视频

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          Solar LED lights: promoting energy conservation and environmental protection

          On the evening of July 6, the world was drizzling. The author came to Jiaoguang Group in Jiaojiang District. All the 3 ??? in the factory area used solar led (semiconductor light-emitting diode) streetlights, and the whole factory area was like white.

          According to Zhu Jiemin, chairman of Jiaoguang Group, the power of these 3 street lamps is 80 watts. The brightness is equivalent to the 400 watt high-pressure sodium lamp used on the road now. At the same time, due to the use of solar energy, there is no penny of energy consumption. It is estimated that if 3 street lamps use 400W high-pressure sodium lamps, they consume more than 2,600 kWh per year, and the cost is nearly 2,000 yuan. After switching to solar LEDs, it can reduce carbon dioxide by more than 2041 kilograms per year. The completion of the solar energy project has a demonstration significance for promoting the energy conservation and emission reduction of Jiaojiang District and lowering the green development of the carbon economy.

          As an infinite renewable energy source, solar energy is gradually replacing the production and living of conventional energy in some cities. LED lighting is an internationally recognized new generation of solid-state lighting source. It has remarkable features such as energy saving, high efficiency, long life, environmental protection and no radiation. Its power consumption is only one tenth of that of incandescent lamps, and one third of fluorescent lamps. It has a life expectancy of 100,000 hours, 50 times the life of ordinary incandescent lamps and 20 times the life of fluorescent lamps. It is the fourth generation of lighting products after incandescent lamps, fluorescent lamps and gas discharge lamps.

          "This solar panel can reach 115 watts." Zhu Jiemin pointed out that the company has just developed a 120 cm x 80 cm solar panel. This solar panel accumulates electricity for a day to drive 80 watts of LED (light-emitting diode) bulbs for 5 nights, with a maximum record of 17 nights, and the light remains bright, solving bad weather such as winter, cloudy, and snow. Solar cell lighting problems in the case.

          The author saw in the exhibition room that the solar LED lights are composed of solar panels, control boxes, maintenance-free batteries, constant current drives, LED lights and street light poles. The working principle is that the solar panel made by the photovoltaic effect receives the solar radiation energy and is converted into electric energy output, and is stored in the battery through the charge and discharge controller. When the illumination is reduced at night, the open circuit voltage of the panel is about 4.5V, the battery Start to discharge the lamp cap.

          "Now, the most critical issue is the issue of solar grid integration." Zhu Jiemin hopes that the government will issue relevant policies as soon as possible to solve the bottleneck problem of solar homes. It is reported that, in general, solar power generation is direct current. If it is to be integrated into the power grid, it needs to go through a series of procedures. The most critical one is to convert the solar radiation into direct current by using a converter, and then convert the direct current into electricity through the equipment. AC power, and finally convert the voltage into the grid.

          How does the voltage change? How is the electricity price calculated after transmission to the grid? How much is the government subsidy? At present, these issues are subject to special research.

          亚洲 欧美 图片 自拍 视频
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