Polysilicon is the world’s major solar panel production of raw materials, while China has become the world’s largest solar cell producer, but a long time, from polysilicon to rely heavily on high-priced foreign imports, the domestic manufacturers of solar cells make only modest fees.
As in recent years, LDK, and a number of enterprises in Sichuan Sunbeam introduction of foreign technology, have launched polysilicon, self-sufficiency rate of polysilicon feedstock has been improved. However, because of technology and process control is not yet in place, China’s polysilicon production of high energy consumption and cost, as the development of solar photovoltaic industry in a “flawed”, seems to gradually stronger at any time in China Polysilicon industry face “destruction” of the dangerous.
Single-plant power consumption equivalent to Nanchang, 1 / 4
In the current domestic production of polysilicon in the enterprise, come from behind LDK PV Silicon Technology Co., Ltd. LD K polysilicon production in the investment called “generous”, from the information already in the public view, 15,000 tons of design capacity is the largest single-plant capacity.
This massive project is located in Xinyu City, Jiangxi Province, Jinan International Photovoltaic Science and Technology Development Zone, base, covers an area of 1,162,000 square meters, annual output of 3,000 tons by the five electronic grade polycrystalline silicon production line composed of the current international popularity of the “improved Siemens “production of polysilicon materials. Project began in September 2007 the construction of the second half of 2009, started trial production.
High energy consumption and production of polysilicon, of which the bulk of power consumption. Jiangxi Provincial Environmental Protection Office under the annual output of 15,000 tons of LDK’s polysilicon project approval, the “After the project, the annual consumption of about 209,000 tons of diesel, two months of 3.2 billion kwh of electricity”, a single plant electricity consumption Nanchang consumption is equivalent to the entire 1 / 4; not consider power consumption in the plant area, production and overall energy consumption per kilogram of polysilicon to 213 kwh.
Energy giant like this, a number of SMEs in the production of polysilicon to a higher energy consumption. Shijiazhuang Silicon Technology Co., Ltd. Dongming December last year, a polysilicon production business, the annual output of 200 tons. Office of Renzhang Xin said, according to the company, investors, a leather company, mainly to see the industry make money to buy a business from Luoyang Siemens improved technology, started last July, to finish the work day and night, less than six months to put into production. Currently, 18 tons of polysilicon production business monthly power consumption 3.5 million yuan to 0.5 yuan per kilowatt per month 7,000,000 kwh consumption, production and energy consumption per kilogram of polysilicon to 389 kwh.
All energy recovery two to three years
Such a high energy consumption, mean that the development of the industry should limit or even prohibit development? In fact, the same energy-intensive industries, and our iron and steel, electrolytic aluminum, compared the two industries, the production of polysilicon is lower than energy consumption per unit of output of steel and aluminum.
CPPCC member and president of Nanchang University School of solar photovoltaic Week Long made a special done to estimates, although the energy consumption per ton higher than silicon steel and aluminum, but much higher than the price of polysilicon per ton of steel and electrolytic aluminum, even if the price of polysilicon from a peak of 400 U.S. dollars per kilogram, about 70 U.S. dollars fell to the current level of energy consumption per unit of output of polysilicon still lower than the steel and aluminum.
From the production of polysilicon to the solar PV power generation, power consumption of the whole process, according to the control of Wuxi Suntech Power Co. Ltd. and Professor Zhou Lang’s calculations, China’s medium-light conditions in the area, install a 1 MW solar volt power system, the annual power generation of about 1.2 million kwh; and 1 watt polycrystalline silicon solar cell system production and installation of 3 kwh consumption calculated in accordance with the comprehensive, one-megawatt solar photovoltaic power generation system production and installation of three million kwh, only 2.5 years to recover balance its own power consumption. Because each company different levels of energy, domestic polysilicon solar photovoltaic power generation system production and installation of energy consumption, the average payback period of between two to three years. With the lower level of energy consumption, payback period will be further reduced.
At present, the domestic production of solar modules around the life of 25 years, this basis, the production of solar energy components in the recovery of production, almost no longer consume the battery, you can power about 22 years, and no pollutant emissions. In fact, even 25 years after the power generation efficiency of solar modules is roughly equivalent to 80% 25 years ago, can still be used for a long time. ZHOU Lang said: “China has committed to the international community in 2020 carbon dioxide emissions per unit of GDP down 40% compared to 2005 -45%, non-fossil fuels in primary energy consumption, the proportion reached 15%. Which, following the wind electricity, nuclear power development, the development of solar photovoltaic power generation will usher in the spring. ”
Saving imperative
Although recovery cycle point of view, the production of polycrystalline silicon solar module power consumption can be recovered in two to three years. However, the unit energy consumption of polysilicon production is still much higher than the world advanced level, which makes the cost of production of polysilicon is much higher than the world advanced level, once the world’s advanced level on behalf of large groups of overseas 7 collective price, our existing polysilicon production enterprises will face huge losses, China’s polysilicon industry will have the danger of destruction.
ZHOU Lang explained that currently a large polysilicon production overseas 7 per kilogram of polysilicon production in the integrated power between 120 kwh -150 kWh, while the producers of the average level of polysilicon over 200 kwh, a level many small factories and even more than 300 kwh. The power consumption of polysilicon production costs precisely the most important part, the high energy of polysilicon production status, the domestic polysilicon production costs far higher than the world advanced level.
Jiangxishengyang Optoelectronics Technology Co., Ltd. General Manager Peng Jinlong, said the current international market price of polysilicon for the $ 60 -70 dollars, the domestic enterprises to produce one kilogram more than the cost of polysilicon in the $ 40 -50 dollars, and overseas large polysilicon 7 production cost of enterprises between $ 20 -30 dollars. Once the large group 7, the collective price of overseas Chinese polysilicon manufacturers will face bankruptcy.
Moreover, the polysilicon industry is capital-intensive industries, a huge investment, higher rates of corporate assets and liabilities. In LDK Solar LDK Solar Silicon Technology Co., Ltd. with an annual output 1.5 million tons of polysilicon project as an example, the total investment of more than 100 billion yuan, of which only investment in environmental protection over 1 billion. Number of PV from the reporter interviewed the responsible persons on comprehensive judgments, assets and liabilities of polysilicon industry average rate of over 60%, once the company went bankrupt, the bank will bear the huge loan losses.
For China’s polysilicon industry, high energy consumption, the status of the industry there is a crisis, Zhou Long, Peng Jinlong and other professionals who suggested that the state should take measures to encourage enterprises, research institutes, such as reducing consumption of polysilicon production joint scientific research and encourage enterprises from sales to extract a higher proportion of R & D expenses, put into production and reducing consumption in the technology research and process improvement.
Polysilicon industry high energy consumption
Posted by admin in News
Polysilicon is the world’s major solar panel production of raw materials, while China has become the world’s largest solar cell producer, but a long time, from polysilicon to rely heavily on high-priced foreign imports, the domestic manufacturers of solar cells make only modest fees.
As in recent years, LDK, and a number of enterprises in Sichuan Sunbeam introduction of foreign technology, have launched polysilicon, self-sufficiency rate of polysilicon feedstock has been improved. However, because of technology and process control is not yet in place, China’s polysilicon production of high energy consumption and cost, as the development of solar photovoltaic industry in a “flawed”, seems to gradually stronger at any time in China Polysilicon industry face “destruction” of the dangerous.
Single-plant power consumption equivalent to Nanchang, 1 / 4
In the current domestic production of polysilicon in the enterprise, come from behind LDK PV Silicon Technology Co., Ltd. LD K polysilicon production in the investment called “generous”, from the information already in the public view, 15,000 tons of design capacity is the largest single-plant capacity.
This massive project is located in Xinyu City, Jiangxi Province, Jinan International Photovoltaic Science and Technology Development Zone, base, covers an area of 1,162,000 square meters, annual output of 3,000 tons by the five electronic grade polycrystalline silicon production line composed of the current international popularity of the “improved Siemens “production of polysilicon materials. Project began in September 2007 the construction of the second half of 2009, started trial production.
High energy consumption and production of polysilicon, of which the bulk of power consumption. Jiangxi Provincial Environmental Protection Office under the annual output of 15,000 tons of LDK’s polysilicon project approval, the “After the project, the annual consumption of about 209,000 tons of diesel, two months of 3.2 billion kwh of electricity”, a single plant electricity consumption Nanchang consumption is equivalent to the entire 1 / 4; not consider power consumption in the plant area, production and overall energy consumption per kilogram of polysilicon to 213 kwh.
Energy giant like this, a number of SMEs in the production of polysilicon to a higher energy consumption. Shijiazhuang Silicon Technology Co., Ltd. Dongming December last year, a polysilicon production business, the annual output of 200 tons. Office of Renzhang Xin said, according to the company, investors, a leather company, mainly to see the industry make money to buy a business from Luoyang Siemens improved technology, started last July, to finish the work day and night, less than six months to put into production. Currently, 18 tons of polysilicon production business monthly power consumption 3.5 million yuan to 0.5 yuan per kilowatt per month 7,000,000 kwh consumption, production and energy consumption per kilogram of polysilicon to 389 kwh.
All energy recovery two to three years
Such a high energy consumption, mean that the development of the industry should limit or even prohibit development? In fact, the same energy-intensive industries, and our iron and steel, electrolytic aluminum, compared the two industries, the production of polysilicon is lower than energy consumption per unit of output of steel and aluminum.
CPPCC member and president of Nanchang University School of solar photovoltaic Week Long made a special done to estimates, although the energy consumption per ton higher than silicon steel and aluminum, but much higher than the price of polysilicon per ton of steel and electrolytic aluminum, even if the price of polysilicon from a peak of 400 U.S. dollars per kilogram, about 70 U.S. dollars fell to the current level of energy consumption per unit of output of polysilicon still lower than the steel and aluminum.
From the production of polysilicon to the solar PV power generation, power consumption of the whole process, according to the control of Wuxi Suntech Power Co. Ltd. and Professor Zhou Lang’s calculations, China’s medium-light conditions in the area, install a 1 MW solar volt power system, the annual power generation of about 1.2 million kwh; and 1 watt polycrystalline silicon solar cell system production and installation of 3 kwh consumption calculated in accordance with the comprehensive, one-megawatt solar photovoltaic power generation system production and installation of three million kwh, only 2.5 years to recover balance its own power consumption. Because each company different levels of energy, domestic polysilicon solar photovoltaic power generation system production and installation of energy consumption, the average payback period of between two to three years. With the lower level of energy consumption, payback period will be further reduced.
At present, the domestic production of solar modules around the life of 25 years, this basis, the production of solar energy components in the recovery of production, almost no longer consume the battery, you can power about 22 years, and no pollutant emissions. In fact, even 25 years after the power generation efficiency of solar modules is roughly equivalent to 80% 25 years ago, can still be used for a long time. ZHOU Lang said: “China has committed to the international community in 2020 carbon dioxide emissions per unit of GDP down 40% compared to 2005 -45%, non-fossil fuels in primary energy consumption, the proportion reached 15%. Which, following the wind electricity, nuclear power development, the development of solar photovoltaic power generation will usher in the spring. ”
Saving imperative
Although recovery cycle point of view, the production of polycrystalline silicon solar module power consumption can be recovered in two to three years. However, the unit energy consumption of polysilicon production is still much higher than the world advanced level, which makes the cost of production of polysilicon is much higher than the world advanced level, once the world’s advanced level on behalf of large groups of overseas 7 collective price, our existing polysilicon production enterprises will face huge losses, China’s polysilicon industry will have the danger of destruction.
ZHOU Lang explained that currently a large polysilicon production overseas 7 per kilogram of polysilicon production in the integrated power between 120 kwh -150 kWh, while the producers of the average level of polysilicon over 200 kwh, a level many small factories and even more than 300 kwh. The power consumption of polysilicon production costs precisely the most important part, the high energy of polysilicon production status, the domestic polysilicon production costs far higher than the world advanced level.
Jiangxishengyang Optoelectronics Technology Co., Ltd. General Manager Peng Jinlong, said the current international market price of polysilicon for the $ 60 -70 dollars, the domestic enterprises to produce one kilogram more than the cost of polysilicon in the $ 40 -50 dollars, and overseas large polysilicon 7 production cost of enterprises between $ 20 -30 dollars. Once the large group 7, the collective price of overseas Chinese polysilicon manufacturers will face bankruptcy.
Moreover, the polysilicon industry is capital-intensive industries, a huge investment, higher rates of corporate assets and liabilities. In LDK Solar LDK Solar Silicon Technology Co., Ltd. with an annual output 1.5 million tons of polysilicon project as an example, the total investment of more than 100 billion yuan, of which only investment in environmental protection over 1 billion. Number of PV from the reporter interviewed the responsible persons on comprehensive judgments, assets and liabilities of polysilicon industry average rate of over 60%, once the company went bankrupt, the bank will bear the huge loan losses.
For China’s polysilicon industry, high energy consumption, the status of the industry there is a crisis, Zhou Long, Peng Jinlong and other professionals who suggested that the state should take measures to encourage enterprises, research institutes, such as reducing consumption of polysilicon production joint scientific research and encourage enterprises from sales to extract a higher proportion of R & D expenses, put into production and reducing consumption in the technology research and process improvement.