What are the advantages of green energy photovoltaic technology?

Photovoltaic effect, or photovoltaic ( PV) , also known as light born v effect ( Photovoltaic） Refers to the light when the nonuniform semiconductor or generate an electrical potential difference between semiconductor and metal composite parts. Photovoltaic (pv) is defined as a straight ray energy

the photovoltaic effect, hereinafter referred to as the photovoltaic effect, also known as the photovoltaic effect, it is to point to in the process of lighting, semiconductor or combination of semiconductor and metal parts of the potential difference between the uneven phenomenon. Photovoltaic (pv) is defined as the direct conversion of radiant energy. In practice, usually refers to the transformation from solar energy to electrical energy, solar photovoltaic power generation. Its implementation is mainly through the use of silicon solar panels and other semiconductor materials, the use of light to produce direct current (dc), such as can be seen everywhere in our daily life of solar cell. Photovoltaic technology has many advantages: for example, it has no any mechanical operation part; In addition to the sun, there is no other needs. Fuel. , can work under direct sunlight and oblique sunshine; At the same time, the solar energy battery components don't need maintenance, reduce the operation cost. In addition, it also is very convenient and flexible in terms of location, you can use the roofs of the city. For the first time since 1958, solar photovoltaic effect as the solar cell application in the field of empty between satellite energy supply. So far, from automatic parking meters and rooftop solar panels power supply to large-scale solar power center, their applications in power generation has been all over the world. Solar energy is a form of the rapid growth of energy, solar energy market in the past ten years has made great progress. According to the data, according to the average annual installed capacity of solar power system calculation, the compound annual growth rate of the global solar market reached 47. 4%, from 2003 in 598 mw to 2826 mw in 2007. Predicts 2012, the solar system's capacity will further increase to 9917 mw, the entire solar industry sales will increase from $17. 2 billion in 2007 to $39. 5 billion in 2012. To a large extent, this growth is due to the rapid growth of the global market demand, rising a feed-in tariff, and various government incentives. Some of the major countries in the world, especially in Germany, Italy, Spain, the United States, France and South Korea, federal, state and local government agencies with rebates, tax credits and other incentives in the form of the solar products of end users, distributors, system integrators and manufacturers to provide subsidies and economic incentives, so as to promote the use of solar energy application in grid, reduce their dependence on other energy sources. However, a strong political lobbying power of traditional public power enterprises may also try to change the related legislation in market, it may also be the development of solar energy and relatively adverse impact on business applications. In general, however, because many of the world's oil and gas production area of political and economic situation is not stable, many governments are taking active measures to reduce dependence on foreign energy. Solar provides an attractive power solution, not the form relies heavily on foreign energy. In addition, the associated with fossil fuel power generation increasingly prominent environmental problems and the risks of climate change to form the political motives, prompting the government to implement to reduce carbon dioxide and other emissions of greenhouse gas emission reduction strategy. Solar and other renewable energy sources will help solve these environmental problems.