Prospects in solar power

名称:Prospects in solar power

供应商:深圳胜美卓越实业有限公司

价格:面议

最小起订量:0/Taiwan

地址:深圳福田区福星路桐林城市广场5B07

手机:13714018785

联系人:杨小姐 (请说在中科商务网上看到)

产品编号:74359108

更新时间:2021-01-23

发布者IP:219.78.151.39

详细说明

  Solar power has a more exciting program. First, the Genesis plan proposed by Japan. Ready to use on the ground area of ​​the desert and the ocean to generate electricity, and by the superconducting cable together into a unified global grid solar power stations in order to supply to the world. It is estimated that in 2000, 2050, 2100, even if the whole world's energy supply with solar power, but also an area of ​​651,100 square kilometers, 1,867,900 square kilometers, 8,291,900 square kilometers. Only the total 8,291,900 square kilometers of marine area of ​​2.3%, or 51.4% of all desert, the Sahara desert is even 91.5%. So this program is likely to be achieved.

  Another heavenly power program. Early in 1980, NASA and the Department of Energy proposed to build solar power stations in space vision, ready to put a geosynchronous orbit 10 kilometers long, 5 km wide and large flat, covered with solar cells, which can provide 5 million kilowatts of electricity. But the need to address the problem of terrestrial wireless transmission. Various schemes have been proposed by microwave beam, laser beam or the like. Although the model currently used to achieve a short-range aircraft, short-term, low-power microwave radio transmission, but also from the real practical long journey.

  With the development of Chinese technology, in 2006, there are three Chinese enterprises to enter the world top ten, indicates that China will become one of the centers of the new global energy technology, widely used in the world's solar PV, it led to the current lack of a increases in raw material supply and prices, we need to promote the technology, we must adopt new technologies, in order to significantly reduce costs and provide the driving force for this long-term development of new energy!

  Use of solar energy can be divided into several areas: Family with small solar power plants, large power stations and networks, building integrated photovoltaic glass curtain wall, solar lights, wind and solar lights, wind and solar power systems, is now the main way of building integrated applications and hybrid systems.

  World there are nearly 200 companies producing solar cells, but the production plant, mainly in the hands of Japanese companies.

  In recent years, South Korea's Samsung, LG have expressed a desire for active participation of China across the Taiwan Strait is equally enthusiastic. According to reports, China Taiwan in 2008 crystalline silicon solar cell production capacity of 2.2GW, the future will be an annual production capacity of 1Gw expand, and then began to produce thin-film solar cells, this year will greatly enhance Taiwan look to Europe, "solar power" in line . 2010 States and regions have more than 1GW of solar cell manufacturers production plans of Japan Sharp, Germany Q-Cells, Scho ~ Solar, 5 Wei Po RWESolar, China SuntechPower five companies, and the remaining seven companies over the production capacity of 500MW.

  In recent years, the world's solar cell market triumph, is excellent, but rare financial crisis, the economic crisis, the same pressure in the solar cell market, the head of a dark cloud, major companies such as the German Q-Cells performance crashed down, the pre-World solar year electrically market also due to weak demand, oil prices and anti-competitive and enhance other unfavorable factors fell. At the same time, we also saw the United States. Obama came to power after the forthcoming implementation of GreenNewDeal policy, including within the green energy plan can have $ 150 billion of subsidies, Japan will also carry out grant system to continue universal application of solar cells.

  Battery principles folded edit this section

  A solar cell is a light, responsive and able to convert light energy into electrical devices. Enabling the production of the photovoltaic effect has many kinds, such as: monocrystalline silicon, polycrystalline silicon, amorphous silicon, gallium arsenide, copper indium selenium. Their power is basically the same principle, now described as an example of crystalline silicon photovoltaic power generation process. P-type amorphous silicon doped with phosphorus can be obtained through the N-type silicon, forming P-N junction. When the light is illuminated solar cell surface, a portion of the photons are absorbed by silicon material; photon energy transfer to the silicon atom, the electrons move occurred more and become a free electron in P-N junction formed on both sides of gathering potential difference, when the external connection When the gate circuit, the role of the voltage, current will flow through an external circuit to generate a certain output power. The essence of the process are: the photon energy is converted into electrical energy in the process.