The hottest new energy takes the path of pollution

2022-08-17
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New energy takes the "pollution road" again

how to stop following the backward path of traditional manufacturing industry and face up to the economy and sustainability of the whole life cycle of industrial development while developing rapidly may become an important proposition that the government, industry and enterprises have to rethink

recently, McKinsey & company, a global management consulting company, released a new report saying that in order to meet the rapidly growing energy demand, China is investing heavily in accelerating the development of renewable energy. The report points out that as early as two years ago, China has become the world's largest renewable energy investor, and McKinsey also predicts that China will continue to maintain this leading position in the next 20 years

however, in the process of the rapid development of China's new energy industry, there has always been a lack of harmony. This time, this emerging industry, which was once expected to become an engine of economic growth, has something to do with pollution

new pollution brought by new energy

new energy enterprises are accused of pollution, and the consequences are very serious. According to media reports, Jinke energy, a Chinese photovoltaic enterprise listed on the New York Stock Exchange, has been sued by some investors because of the lack of timely disclosure of pollution problems in China's production bases

the matter will start from 1 month ago. On September 15, in Hongxiao village, Yuanhua Town, Haining City, Zhejiang Province, as many as 500 people gathered in front of Jingke energy company to ask for advice on environmental pollution. Not long ago, the chemical substances in the company's waste were discharged into the river behind the company, causing the fluoride ion in the river to exceed the standard by 10 times. Under the pressure of public opinion, the company announced that it would stop production

established in December, 2006, Jinke energy is a dark horse in the photovoltaic industry. In only five years, the company has grown into a leading manufacturer of solar downstream products in China, mainly producing solar silicon wafers, cells and components, and landed on the New York Stock Exchange last May. In the second quarter of 2011, its operating revenue was $350million, and it has two production bases, located in Shangrao, Jiangxi Province and Haining, Zhejiang Province

according to Jingke energy insiders, Jingke energy has two factories in Haining. In addition to the factory where the accident occurred, there is a new factory ready to expand production. The factory located in Hongxiao village, Yuanhua Town, Haining mainly produces battery chips, but also a small number of components, which does not involve the production of silicon chips

afterwards, the person in charge of the company apologized for the pollution incident and announced the countermeasures. After preliminary verification, the main reason for this event is that Jinke energy improperly stacked the fluorine-containing solid waste, which was discharged to the nearby river through the rainwater pipeline after being attacked by the rainstorm

however, as early as April this year, Haining environmental protection department had found that the rainwater and sewage diversion of Jinke energy was not complete, resulting in some sewage entering the rainwater pipeline, and issued a warning to the company. In addition, Jinke energy often emits white and yellow exhaust gases at night, which has a strong odor. The environmental protection department has received several complaints from villagers about exhaust emissions

at present, the environmental protection department has instructed the enterprise to expand the standardized solid waste stacking place according to the environmental protection requirements, shut down the battery production line involving pollution, transform and improve the waste gas treatment facilities, and issued a ticket of 470000 yuan. At the same time, the share price of Jingke energy fell 28% on the same day due to the pollution gate incident, and the market value evaporated as much as $60.4 million a day

just before the deadline, the Haining plant of Jinke energy involving pollution has resumed production, but the debate about whether the new energy industry will bring new pollution has just begun

in fact, in recent years, enterprises wearing the green coat of new energy have led to environmental pollution. In order to save costs, many small-scale photovoltaic enterprises even directly discharge their production wastewater, rarely use advanced processes and equipment to treat pollutants, and some production lines have not even fulfilled the environmental assessment approval and environmental protection acceptance procedures for the completion of construction projects. An insider who declined to be named told

a concept should be corrected. The energy transformed by the new energy industry is indeed green, but in the process of transformation, its equipment manufacturing, raw material refining and other processes will never be zero pollution, and this problem should be viewed comprehensively. Dr. Zhang Na, Institute of Engineering Thermophysics, Chinese Academy of Sciences, said in an interview

in the view of industry experts, even if the end use of new energy is clean, new energy enterprises may not be pollution-free. In particular, those projects with the aura of new energy are contrary to the image of clean and environmental protection, and even projects with environmental pollution as the final result need to be vigilant

reexamine new energy pollution

perhaps, while stimulating economic growth, it is time for us to reexamine the development of new energy industry

according to the above McKinsey report, China may account for 23% of the world's new renewable energy power generation capacity in the next 20 years. During this period, China will account for 32% of the world's new hydropower generation capacity, 26% of wind power generation capacity and 47% of nuclear power generation capacity

from 2010 to 2030, China will invest an average of US $130billion a year to build new power plants with 1.1 million megawatts of electricity, equivalent to 32% of the world's newly installed power generation capacity. China accounts for 27% of the global annual total investment of $490billion. Nearly half of the newly increased power generation capacity, namely 470000 MW, is renewable energy such as wind, hydropower and solar energy

with such a large-scale investment, in addition to obtaining gorgeous data on the global market share of green energy and Xinda in addition to the research and production of biomaterials, what else are we likely to get

although the industry believes that the Jinke energy pollution incident is mostly related to its management negligence, the environmental pollution caused by photovoltaic cells is not a new topic, and the environmental costs behind clean energy are also attracting public attention

as we all know, solar photovoltaic power generation is a technology that directly converts light energy into electrical energy by using the photovoltaic effect at the semiconductor interface. The key component of this technology is solar cells, but polysilicon production, which is the most widely used upstream of the photovoltaic industry chain, has been repeatedly questioned by pollution

Fu Weigang, a researcher at Shanghai Institute of Finance and law, wrote that at present, the main material for domestic photovoltaic products is polysilicon, and the production technology of polysilicon is the improved Siemens method. On this side, the rising price of battery raw materials will form a large number of chlorosilane by-products such as silicon tetrachloride and hydrogen chloride. If the recovery process is not mature, harmful substances such as silicon tetrachloride, hydrogen chloride and chlorine are likely to overflow. Due to the fact that most of the photovoltaic enterprises in China have imported backward equipment and technology from abroad, they can't do closed-loop production. In addition, some enterprises have cut corners on the process in order to reduce costs and omit the recycling and treatment of pollutants, which has caused damage to the environment. These photovoltaic enterprises that are considered pollution-free abroad have become highly polluting enterprises

it is understood that in the process of polysilicon production, metallic silicon must first be converted into trichlorosilane. In this process, only a quarter of trichlorosilane is converted into polysilicon, and the rest enters the tail gas, and the dangerous substance silicon tetrachloride is produced. When producing polycrystalline silicon, it will produce 8 times around the relevant local semiconductor silicon material industry, based on its silicon tetrachloride and hydrogen chloride, which are the two major breakthroughs in Tongtai. A batch of new materials in key fields are highly polluting toxic liquids, and their reuse costs are expensive. At present, half of Chinese enterprises have not installed or completely installed relevant recycling equipment because of economic problems. In addition, the advanced production technology of polysilicon cells is monopolized by developed countries such as the United States, Germany and Japan, and there are serious defects in key technologies such as pollution control, which lead to the low level of pollution control in China's polysilicon industry. Meng Xiangan, vice president of China Renewable Energy Association, said

at present, China's photovoltaic industry is still in the situation of flowering inside the wall and fragrant outside the wall due to multiple problems such as policies and electricity prices. As of 2010, China's photovoltaic cell output accounted for about 50% of the world's total output, and has ranked first in the world for many consecutive years. The export volume of photovoltaic products accounted for about 90% in the world

leaving pollution in China and bringing new energy products abroad may leave China with visible GDP and invisible environmental costs. Industry experts cannot help worrying

not only that, in addition to solar photovoltaic, other new energy sources also have environmental protection problems more or less

in the field of hydropower, many experts believe that in order to achieve the goal of clean energy accounting for 15% of the primary energy structure by 2020, developing hydropower is still a necessary choice for China. However, there is no clear certainty in the industry about the impact of hydropower on the ecological environment. As early as last December, Ling Jiang, deputy director of the Department of pollution prevention and control of the Ministry of environmental protection, said that hydropower may cause more serious pollution than thermal power to some extent. However, Zhang boting, Deputy Secretary General of the society of hydraulic and power engineering, later published an article criticizing such accusations as not new, but repeating some lies about pseudo environmental protection and slandering hydropower. The differences between the two sides can be seen

earlier, Premier Wen Jiabao chaired a State Council executive meeting, which adopted the follow-up work plan for the Three Gorges and the water pollution prevention and control plan for the middle and lower reaches of the Yangtze River. The announcement after the meeting showed that while the Three Gorges project has brought great comprehensive benefits into play, there are still some urgent problems to be solved in the aspects of immigrants' stability and prosperity, ecological environment protection, geological disaster prevention and control, etc., which have also had a certain impact on shipping, irrigation, water supply, etc. in the middle and lower reaches of the Yangtze River

this may mean that the state will be more cautious in reviewing hydropower development in the future. In an interview, an unnamed analyst pointed out

in the field of wind power, in the process of wind power generation, there will be low-frequency noise pollution when the wind power blades rotate, which will not only have a certain impact on human health, but also interfere with the air flow and affect the safe flight of birds. At present, some experts have begun to pay attention to the impact of wind power on the ecological environment in the region, such as the vegetation and climate change around the wind farm, and whether there will be a potential butterfly effect even after the wind energy is intercepted in a huge amount. These questions need to be further confirmed

Zhou Yongzhang, director of the earth environment and Earth Resources Research Center of Sun Yat sen University, said in an interview that there are certain fields in the energy of nature, and when people use different energy sources to generate new energy, new fields will also be generated, such as a certain magnetic field around wind power generation. However, whether this process will have an impact on the ecological environment needs further and precise demonstration

at the same time, the nuclear power safety problems caused by the Fukushima nuclear power plant accident in Japan have also led countries around the world to re-examine the application of nuclear power. Biomass power generation, as a power generation method with crop straw as the main fuel, will also produce pollutants such as carbon dioxide and fine particulate matter in the direct combustion power generation process of straw direct combustion, which will cause air pollution when discharged into the air

in addition to new energy such as wind power, photovoltaic power generation and nuclear power, some emerging industries such as new energy vehicles are also accelerating their development. However, over this blue market, there is also a haze of pollution

some analysts believe that at present, there are two major questions about environmental protection

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