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China's photovoltaic industry ranks third in the world, lack of core technology

Release time:

2011-09-05

Solar energy is the cleanest, safe and reliable energy in the future. Developed countries are taking the development and utilization of solar energy as the main content of the energy revolution. The photovoltaic industry has become another "explosive" development industry after the IT and microelectronics industries in the world.

Due to the lack of core technology, although China's photovoltaic cell production scale has ranked third in the world, it still can not get out of the old mode of "two ends outside" to earn a small amount of money, and trigger a series of problems such as environmental pollution. During the reporter's recent investigation, most experts and industry insiders suggested that the country should clarify the status of solar energy development and utilization as soon as possible from the height of energy strategy, promote technological innovation, create an environment for enterprise upgrading, and create a strong photovoltaic industry.

"Solar energy" potential to promote the photovoltaic industry
In recent years, because it is foreseen that fossil energy is not renewable and will eventually be exhausted, countries all over the world are actively seeking alternative energy in order to seize the commanding heights in future development.

The United Nations Development Programme divides new energy into electricity generated by large and medium-sized hydropower stations; new renewable energy, including small hydropower, solar energy, wind energy, modern biomass energy, geothermal energy, ocean energy; and traditional biomass energy. According to a report of the National Energy Administration, after 2050, global energy substitution will focus on nuclear fusion, natural gas hydrate, space solar power generation and hydrogen energy.

Professor Cui Rongqiang, executive director of the China Renewable Energy Society and doctoral supervisor of the Solar Energy Research Institute of Shanghai Jiaotong University, believes that among dozens of renewable energy sources, solar energy is the least restricted by resources and the most likely to be promoted and applied. it will become the best way to solve China's future energy problems.

Cui Rongqiang said that solar energy is the most abundant, cleanest, safest and most reliable. Human beings can solve the problem of electricity consumption by using the 5‰ of sunshine every day.

He analyzed that 76% of China's land is full of light and light energy resources are evenly distributed. Compared with hydropower, wind power and nuclear power, solar power generation has no emissions and noise, and its application technology is mature and safe and reliable. In addition to large-scale grid-connected power generation and off-grid applications, solar energy can also be stored in various ways such as pumping, superconductivity, storage battery and hydrogen production, "Solar + energy storage" can almost meet China's stable energy demand in the future.

At present, the best way to use solar energy is photovoltaic conversion, which is to use the "photovoltaic effect" to make sunlight hit the silicon material to generate electricity directly. The industrial chain formed by the application and development of silicon materials is called the photovoltaic industry, including the production of high-purity polysilicon raw materials, solar cell production, solar cell module production, and related production equipment manufacturing.

Global seize the "photovoltaic" opportunity

Germany, Japan, the United States as the representative of the developed countries have aimed at the field of solar energy applications to seize the "express". Since the late 1990 s, some high-level research institutions in Europe have increased their research on the use of solar energy. In June 1997, the United States put forward the "million solar roof plan", which plans to install solar energy systems on 1 million roofs or other possible parts of buildings by 2010. Europe also announced its Million Roof plans around 1997.

At the same time, developed countries have put forward various policy support for photovoltaic applications. The German government subsidizes 70% of the cost of photovoltaic power generation for enterprises and allows solar photovoltaic to enter the network. Singapore exempts photovoltaic enterprises entering the country from taxation for 10 years, and 50% of the research and development funds of enterprises are provided by the government.

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