Frbiz.com Reports Dispute Photovoltaic Clean Energy Polysilicon Refining Energy Comparable To Alumin

Photovoltaic power generation is the environmental protection industry

, but the polysilicon used in photovoltaic cells in the refining process, the power consumption than known as "electric tiger," said electrolytic aluminum is even higher. Moreover, if the polysilicon production process, not processed well certain chemical substances, may also cause environmental pollution.

Because PV is a typical "two out" industry, which means that the Chinese consume a lot of energy, causing a lot of pollution, but in the domestic production of clean energy, which is one important reason for the PV industry in question.

Power-hungry polysilicon

Shenyin researchers have measured too vigorous in the Sichuan local consumption of polycrystalline silicon manufacturer.

At present, the company produce a kilogram of polysilicon consumption about 160 kilowatt hours and that is, 1 ton polysilicon to electricity 16,000 kwh, which is leading the country.

China Merchants Securities researcher Wang Sheng told CBN reporter, the current domestic refining the basic power consumption of polysilicon in the 20,000 kwh / ton. Which is defined as the energy-intensive aluminum industry, electricity is about 14.5 thousand kwh / ton. Clearly, the polysilicon consumption is even higher than the aluminum.

Even such a high power consumption, in order to invite more business, some local governments not only to set aside large tracts of land for the polysilicon production enterprises to open the door to convenience, but also gives a very cheap price.

According to media reports, a city in Jiangxi Province's industrial electricity 0.53 yuan / kwh, while the local price obtained by a polysilicon plant it is 0.4 yuan / kwh.

Manufacture of polysilicon to consume so much power, while the solar cells and other manufacturing sector demand for electricity is higher.

"Solar cell process, there is an intermediate process called a biopsy. In addition to cutting equipment in addition to electricity, air compressors, refrigeration machines, also have power. Like cutting a weight of 22 kilograms of polysilicon is necessary to use 640-degree electricity. according to the calculation of Jiangsu side of the price of polysilicon sections about power consumption 30 yuan / kg. "

Counselor of the State Council, China Renewable Energy Society for Shi Dinghuan have already said that crystalline silicon in the production of high power operation, but in 20 years of photovoltaic power generation cycle, materials, electricity consumed in the production of only 3 to 4 years can be balanced.

The high cost of pollution control

Of course, energy consumption per unit output value from the look of the existing technological conditions, the output value of China's energy consumption per million PV modules (including the polysilicon refining link) about 900 units of electricity, while the iron and steel industry energy consumption per yuan output value of 3900 kWh about energy consumption of aluminum per million yuan output value of about 6000 degrees, the photovoltaic industry, the output value of energy consumption is far lower than the steel and aluminum industries.

Industry Coordination Division, National Development and Reform Commission Chen Bin, once said: "At present, the domestic photovoltaic industry has no large-scale launch, with domestic polysilicon production of solar cells 98% are exported overseas, equivalent to an indirect export large volumes of energy."

Polysilicon is not only power, inattentive when there is a potential environmental pollution.

The product's manufacturing process, will be discharged silicon tetrachloride, hydrogen chloride, hydrogen and other exhaust. In particular, silicon tetrachloride, if we did not deal with, they dissolved into hydrochloric acid and other substances will pollute the soil.

State regulations, the recovery of utilization of these three products should not be less than 98.5%, 99%, 99%.

"Some companies do not want to do is take into account the interests of the recycling problem." Poly-silicon device manufacturers Morimatsu Group Managing Director, Xue Jiang-ying said, "the process of recovery is called silicon tetrachloride hydrogenation, hydrogenation treatment is use to a consumables - electrodes, life is 4 ~ 5 months. a 1500 tons polysilicon refineries to use 8 sets of electrodes, so businesses had to spend a year 70000000-8000 million, a high amount of investment. "

He said that the current domestic and other products are also actively seeking to replace the graphite electrode function in order to reduce the burden of polysilicon manufacturers. "However, the Government introduced the policy is to get everyone engaged in environmental protection, the entire production chain must be actively improve the battery technology and lower costs."

by: himfr

POST COMMENT

General Information About Company Incorporation Freelancing Paving Your Way To Success Sharjah Expo Centre – For the business side in you! Tips For Venue Setup In Uk Top 10 Conference Venues Uk Guidelines For Buying A Custom Transformer Gardening-an Expression... Benefit Auction Item Idea - Research-related Excursions The Choosing A Car Stereo And The Basic Components Of A Stereo Enjoy Your Business Trips With 17 Inch Laptop Bag The Benefits Of Quickbooks Point Of Sale To Get Accident Compensation Claims Accepted In The Uk, Corporate Blogging: 7 Best Practices