- Jun 12, 2018 -
Photovoltaic industry which silicon metal apply in
Photovoltaic industry which silicon metal apply in , abbreviated as PV (photovoltaic). 76% of the country's land is full of light and the distribution of light energy resources is relatively uniform.
Compared with hydropower, wind power, and nuclear power, solar power has no emissions and noise, and its application technology is mature, safe, and reliable.So silicon metal is so important in this field and there is a good market for silicon metal supplier.
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, superconducting, storage batteries, and hydrogen production.
Solar energy storage can almost meet China's stable energy demand in the future. Solar energy is the cleanest, safest, and most reliable energy source in the future. The developed countries are making solar energy development and utilization a major part of the energy revolution for a long time. The photovoltaic industry which silicon metal apply in is increasingly becoming the world's next explosive industry after the IT and microelectronics industries.
The best way to use solar energy is the photovoltaic which silicon metal apply in conversion, which is to use the photovoltaic effect to make the solar light shine on the silicon material and generate electricity to generate electricity directly.
The optoelectronic conversion industrial chain formed by the application and development of silicon materials is called “photovoltaic industry”which silicon metal apply in, which includes production of high-purity polysilicon raw materials, production of solar cells, production of solar cell modules, and manufacturing of related production equipment.
According to data released by the Ministry of Industry and Information Technology on August 19, 2015, China's photovoltaic industry which silicon metal apply inincreased by 30% year-on-year in the first half of the year.
At the same time, product prices rose steadily and business operations generally improved. The top four polysilicon companies in the country achieved full production. The average gross profit margin of the top 10 component companies exceeded 15%, and the average of 29 component companies that entered the regulatory notice list of the photovoltaic manufacturing industry was average. The net profit rate increased by 6.5 percentage points year-on-year. 
Chinese Photovoltaic Industry which silicon metal apply in Photo Name Photon Photovoltaic Solar Power Generation New Generation System
On December 19, 2012, Premier Wen Jiabao chaired a State Council executive meeting to study and determine the policies and measures for promoting the healthy development of the photovoltaic industry. The meeting identified the following five policy measures:
The first is to accelerate industrial restructuring and technological progress. Increase the use of the market "force mechanism" to encourage mergers and acquisitions of enterprises, eliminate backward production capacity and improve the level of technology and equipment. Strictly control the new polysilicon, photovoltaic cell and component projects that simply increase production capacity.
The second is to regulate the order of industrial development. Strengthen the coordination of photovoltaic power generation planning and supporting power grid planning and establish simple and quick
Efficient grid-connected service system. Establish and improve a system of technical standards, strengthen market supervision, and implement compulsory inspection and certification systems for key equipment.
The third is to actively explore the domestic market for photovoltaic applications. Efforts will be made to promote distributed photovoltaic power generation, encourage units, communities and families to install and use photovoltaic power generation systems, and promote the construction of photovoltaic power plants in an orderly manner. Strengthen international cooperation and consolidate and expand the international market.
The fourth is to improve support policies. According to the resource conditions, the sub-regional benchmark price for photovoltaic power stations will be established, and the distributed photovoltaic power generation will be subject to the subsidy policy, and the on-grid tariffs and subsidy standards will be reasonably reduced according to the changes in costs. Improve the mechanism of central government finance to support the development of photovoltaics. The photovoltaic power station project implements the same VAT preferential policies as wind power.
The fifth is to give full play to the role of the market mechanism, reduce government intervention, and prohibit local protection. We will improve the pricing mechanism for electricity pricing and the evaluation mechanism for the effects of subsidies to improve the policy effect. Play the role of industry organizations, strengthen industry self-discipline, and guide the healthy development of the industry. The meeting requested all relevant departments to quickly formulate and improve supporting policies to ensure that they are in place. 
The six specific contents of the photovoltaic country are as follows:
The first is to strengthen planning and industrial policy guidance, promote rational distribution, and focus on expanding distributed photovoltaic power generation applications.
Second, power grid companies must ensure that the supporting power grid and photovoltaic power generation projects are simultaneously built and put into production, and priority is given to the arrangement of photovoltaic power generation plans, and the total amount of power generated by these power grids will be acquired.
The third is to improve the photovoltaic power price support policy, establish the sub-regional benchmark price of photovoltaic power stations, expand the scale of renewable energy funds, and ensure timely distribution of funds for distributed photovoltaic power generation subsidies.
The fourth is to encourage financial institutions to take measures to ease the financing difficulties of photovoltaic manufacturing companies.
The fifth is to support the research and development and industrialization of key materials and equipment, and to strengthen the construction of photovoltaic industry standards and regulations.
The sixth is to encourage enterprises to merge and reorganize, to be superior and stronger, and to suppress the blind expansion of production capacity. ”
With regard to policy support, the "Opinions" put forward six major policies:
(1) Strongly support user-side photovoltaic applications;
(2) Improve electricity price and subsidy policies;
(3) Improve the management of subsidy funds;
(4) Increase financial and taxation policy support;
(5) Improve financial support policies;
(6) Improve land support policies and construction management.
Electricity price and subsidy policy are the most important factors restricting the development of the photovoltaic industry which silicon metal apply in.
Photovoltaic which silicon metal apply in principle
Photovoltaic power generation is a technology that uses the photovoltaic effect of a semiconductor interface to convert light energy directly into electrical energy. The key element of this technology is solar cells. After the solar cells are encapsulated and protected in series, a large area solar cell module can be formed, and a photovoltaic power generation device can be formed by combining the power controller and other components. Photovoltaic power generation has the advantage of being less restricted by geography because it is sunny; the photovoltaic system also has the advantages of being safe, reliable, noise-free, low-pollution, energy-efficient and requiring no fuel consumption, and the ability to install power lines to generate electricity on-site and have a short construction period.
Photovoltaic power generation is based on the principle of photovoltaic effect, using solar cells to convert solar energy directly into electrical energy.
Regardless of whether it is used independently or connected to the grid, the photovoltaic system is mainly composed of solar panels (components), controllers and inverters. They are mainly composed of electronic components and do not involve mechanical components. Therefore, photovoltaic power generation equipment Extremely refined, reliable and stable, long life, easy installation and maintenance.
In theory, photovoltaic technology can be used in any application where power is needed, from spacecraft, down to home power, up to megawatts of power stations, to toys, and photovoltaic power is everywhere. The basic components of solar photovoltaic power generation are solar cells (sheets), monocrystalline silicon, polysilicon, amorphous silicon, and thin-film batteries. At present, the single crystal and polycrystalline batteries are the most used, and amorphous batteries are used in some small systems and calculators as auxiliary power sources.
The efficiency of domestic crystalline silicon cells is about 10 to 13%, and the efficiency of similar foreign products is about 18 to 23%. Solar panels made up of one or more solar cells are called photovoltaic modules. At present, photovoltaic power generation products are mainly used in three major areas: First, to provide power for non-electricity applications, mainly to provide electricity for residents living in areas without electricity, as well as microwave relay power and communication power supplies. In addition, there are also some mobile phones. Power supply and backup power supply; second, solar daily-use electronic products, such as various types of solar chargers, solar street lights, and solar lawn lights; and third, grid-connected power generation, which has been widely implemented in developed countries. China's grid-connected power generation has not yet started. However, part of the 2008 Olympic Games in Beijing is provided by solar power and wind power.
1, never dry.
2. The geographical location of the site where solar energy is collected is not high; relatively speaking, the requirements for the location of the hydropower station or wind farm are relatively high.
3. The time and cost required to establish a solar power plant are lower than that of a hydropower station.
4. The use of solar energy will not cause environmental pollution and it is an ideal green energy source. However, raw materials also consume large amounts of energy and cause pollution during the production and production of photovoltaic products.
5, a wide range of applications, even if the average family can also use solar power.
Therefore, in order to extract and use solar energy more effectively, countries all over the world continue to develop solar photovoltaic module technology and use this “non-exhaustive” energy source as much as possible.