In today's increasingly high demand for energy-saving and emission-reduction, shallow geothermal energy is a very important new type of energy. Its development and utilization have become an important way to achieve sustainable development, while the development of ground-source heat Pump technology has made shallow geothermal energy Utilization and development become possible.
Experts predict that with the increase in energy conservation and emission reduction efforts in the “Twelfth Five-Year Planâ€, the source will have more opportunities for development.
However, in an interview, the reporter found that ground-source heat pump technology encountered many problems such as difficult maintenance and difficult standards compatibility during the development. Some companies and industry experts all stated that: “Geothermal is faced with rare opportunities for development, but encountered The problem can not be ignored, in order to fully promote ground-source heat pump technology is a long way to go."
Low consumption and high efficiency are favored by people. As the current ground source heat pump technology for shallow geothermal utilization, it has a unique low-carbon environmental protection feature. Its energy efficiency is 50%-60% lower than other conventional heating and cooling technologies, and its operating cost can be reduced. The reduction of 30%-70%, and it does not emit any waste, has attracted increasing attention from all parties.†Xu Chongqing, deputy director of the Energy Research Institute of the Shandong Academy of Sciences, told reporters.
The shallow geothermal energy refers to the geothermal energy contained in soil and underground water within 200 meters below the ground. After being collected and utilized by heat pump technology, it can not only heat but also cool. Compared with other energy sources, shallow geothermal energy has the advantages of wide distribution, recyclable regeneration, huge reserves, and availability. It is a clean energy source.
Most regions of China are located in the north temperate zone, with relatively shallow permafrost layers. The temperature of soil, rock formations, and water from 80 meters to 100 meters below the ground averages from 16 to 17 degrees. Most regions have the resources to develop shallow geothermal energy. It has been estimated that the energy of the shallow geothermal energy available in 287 cities above city level in China is equivalent to 350 million tons of standard coal per year. If all of them are effectively developed and utilized, each year, 250 million tons of standard coal can be saved, and 500 million tons of carbon dioxide emissions can be reduced. Layers of geothermal development and utilization have broad prospects.
Xu Chongqing said that Shandong, as a coal-producing province, needs to pump a lot of groundwater during the coal mining process, and its temperature is also above 17 degrees. In addition, many enterprises in our province discharge a large amount of wastewater from 20 to 35 degrees during the production process. A wide range of resources. These resources can all be used for heat reduction in summer or winter in heat pump technology, which can greatly reduce one-time energy consumption, which is an effective resource for building energy conservation.
It is understood that building energy consumption currently accounts for about 30% of China’s total energy consumption, and this proportion is still increasing. Therefore, the promotion of renewable energy such as solar energy and geothermal energy in the field of building energy conservation has broad prospects. In recent years, it has shown Good development trend.
“At present, our province is also actively promoting shallow geothermal exploration and development, and has also achieved rapid development in its popularization and application.†Chang Jiuchun, deputy director of the Research and Promotion Center for Shallow Geothermal Energy in Shandong Province, introduced the center since its establishment in 2009. The exploration and evaluation of the shallow geothermal energy in the province and the research and promotion of the development and utilization technologies have also promoted the development and utilization of geothermal resources in the province.
The market scale is expected to rapidly enlarge. During the “Twelfth Five-Year Plan†period, the development and utilization of geothermal resources will set off a new round of climax, and the geothermal heat pump industry model is also expected to upgrade. In addition to promoting the manufacture and sale of ground-source heat pump equipment, the energy service industry for geothermal utilization will also achieve significant development. "Yuan Funing of Shandong Ataler Group said in an interview.
Yate Group is an enterprise that has entered the ground source heat pump industry earlier in the province. At present, it has implemented hundreds of ground source heat pump application projects in more than 20 provinces, regions, and cities across the country.
“According to calculations, in the next five years, the total market size for the development and use of geothermal energy in China will approach 100 billion yuan,†said Yuan Funing. Judging from the current market, the sales volume of ground source heat pump market in China has exceeded 8 billion yuan and is growing at a rate of more than 20% per year. At the same time, the initial installation cost of ground-source heat pump systems has also dropped drastically, from the initial construction area of ​​400 to 450 yuan per square meter, to the current 220 to 320 yuan, the public awareness of ground-source heat pumps also have Greatly improved.
“Although the use of ground source heat pumps in our province started late, it has developed rapidly. As of the end of 2010, the province’s use of this method for cooling and heating reached 8 million square meters, and was used in schools, hospitals, and office space. Exhibition halls and residential communities, including Weifang, Rizhao, Linyi, Zaozhuang, and Zibo, are widely used.†Xu Chongqing said that not long ago, the provincial Academy of Sciences organized experts to investigate the application of ground source heat pumps in our province.
Driven by the application of technology, our province currently has 21 ground-source heat pump manufacturers. The products involve water sources, soil sources, and sewage-source heat pump units. Among them, Texas and Weifang are relatively concentrated, in particular, Fulton, Yantai, and Belater, Texas. And other companies have entered the top 5 in the same industry in the country.
Both local governments and energy giants have increasingly valued the development of geothermal resources.
It is reported that senior CNPC executives have stated that by 2020, the company will invest 10 billion yuan to develop new energy sources, including six aspects of geothermal resources. Industry analysts also pointed out that with the reduction in the cost of ground-source heat pump investment, it is expected to accelerate the popularity of new projects, and it is expected that the overall industry performance will increase year by year.
The status quo of the industry restricts industrial upgrading. “Although the prospects for geothermal development are very good, due to the high profits of the ground source heat pump industry and the low threshold, many non-specialized companies have joined the industry, resulting in uneven levels of technology, and rushing into the market through price warfare. A certain degree of vicious competition has also affected the promotion of technology,†said Chang Chunchun.
At present, "China lacks a comprehensive evaluation system for source heat pump systems and a strict market access system in different forms. It is unable to effectively carry out evaluations of system reliability and energy conservation effects. Market operations are not standardized, and vicious competition is at the expense of project quality. There is aggravating trend.†In the view of Changchun, it is necessary for the state to introduce the industry access standards and industrial target evaluation system as soon as possible.
Xu Chongqing said during the survey, “At present, geothermal system integrators and engineering companies have uneven levels of technology, and the calculation of underground thermal fields, selection of backfill materials, and insufficient understanding of the thermal and thermal balance of underground thermal fields have led to an operational cost after the completion of the project. High temperature, unsatisfactory heating and cooling effects, etc."
At the same time, the ground source heat pump production companies have less mastery of core technologies. The compressors of the core compressors all rely on imports. The innovation capability is not strong, the product features are not prominent, and the degree of product homologization is high. Occupying the market with price wars occurs from time to time.
Changjiu Chang believes that the ground-source heat pump as a new thing requires the government to continue to increase support and encouragement at the policy level. It also needs to regulate the current market conditions, set thresholds to improve the technology and construction level of the entire industry, and promote geothermal energy in our province. The development and application industry is developing steadily. Xu Chongqing also stated that “we should implement the national support policies for the development of new energy industries, formulate relevant policies and implementation methods for our province, and scientifically guide enterprises to increase the scale of investment and upgrade the industrial level.â€
Experts predict that with the increase in energy conservation and emission reduction efforts in the “Twelfth Five-Year Planâ€, the source will have more opportunities for development.
However, in an interview, the reporter found that ground-source heat pump technology encountered many problems such as difficult maintenance and difficult standards compatibility during the development. Some companies and industry experts all stated that: “Geothermal is faced with rare opportunities for development, but encountered The problem can not be ignored, in order to fully promote ground-source heat pump technology is a long way to go."
Low consumption and high efficiency are favored by people. As the current ground source heat pump technology for shallow geothermal utilization, it has a unique low-carbon environmental protection feature. Its energy efficiency is 50%-60% lower than other conventional heating and cooling technologies, and its operating cost can be reduced. The reduction of 30%-70%, and it does not emit any waste, has attracted increasing attention from all parties.†Xu Chongqing, deputy director of the Energy Research Institute of the Shandong Academy of Sciences, told reporters.
The shallow geothermal energy refers to the geothermal energy contained in soil and underground water within 200 meters below the ground. After being collected and utilized by heat pump technology, it can not only heat but also cool. Compared with other energy sources, shallow geothermal energy has the advantages of wide distribution, recyclable regeneration, huge reserves, and availability. It is a clean energy source.
Most regions of China are located in the north temperate zone, with relatively shallow permafrost layers. The temperature of soil, rock formations, and water from 80 meters to 100 meters below the ground averages from 16 to 17 degrees. Most regions have the resources to develop shallow geothermal energy. It has been estimated that the energy of the shallow geothermal energy available in 287 cities above city level in China is equivalent to 350 million tons of standard coal per year. If all of them are effectively developed and utilized, each year, 250 million tons of standard coal can be saved, and 500 million tons of carbon dioxide emissions can be reduced. Layers of geothermal development and utilization have broad prospects.
Xu Chongqing said that Shandong, as a coal-producing province, needs to pump a lot of groundwater during the coal mining process, and its temperature is also above 17 degrees. In addition, many enterprises in our province discharge a large amount of wastewater from 20 to 35 degrees during the production process. A wide range of resources. These resources can all be used for heat reduction in summer or winter in heat pump technology, which can greatly reduce one-time energy consumption, which is an effective resource for building energy conservation.
It is understood that building energy consumption currently accounts for about 30% of China’s total energy consumption, and this proportion is still increasing. Therefore, the promotion of renewable energy such as solar energy and geothermal energy in the field of building energy conservation has broad prospects. In recent years, it has shown Good development trend.
“At present, our province is also actively promoting shallow geothermal exploration and development, and has also achieved rapid development in its popularization and application.†Chang Jiuchun, deputy director of the Research and Promotion Center for Shallow Geothermal Energy in Shandong Province, introduced the center since its establishment in 2009. The exploration and evaluation of the shallow geothermal energy in the province and the research and promotion of the development and utilization technologies have also promoted the development and utilization of geothermal resources in the province.
The market scale is expected to rapidly enlarge. During the “Twelfth Five-Year Plan†period, the development and utilization of geothermal resources will set off a new round of climax, and the geothermal heat pump industry model is also expected to upgrade. In addition to promoting the manufacture and sale of ground-source heat pump equipment, the energy service industry for geothermal utilization will also achieve significant development. "Yuan Funing of Shandong Ataler Group said in an interview.
Yate Group is an enterprise that has entered the ground source heat pump industry earlier in the province. At present, it has implemented hundreds of ground source heat pump application projects in more than 20 provinces, regions, and cities across the country.
“According to calculations, in the next five years, the total market size for the development and use of geothermal energy in China will approach 100 billion yuan,†said Yuan Funing. Judging from the current market, the sales volume of ground source heat pump market in China has exceeded 8 billion yuan and is growing at a rate of more than 20% per year. At the same time, the initial installation cost of ground-source heat pump systems has also dropped drastically, from the initial construction area of ​​400 to 450 yuan per square meter, to the current 220 to 320 yuan, the public awareness of ground-source heat pumps also have Greatly improved.
“Although the use of ground source heat pumps in our province started late, it has developed rapidly. As of the end of 2010, the province’s use of this method for cooling and heating reached 8 million square meters, and was used in schools, hospitals, and office space. Exhibition halls and residential communities, including Weifang, Rizhao, Linyi, Zaozhuang, and Zibo, are widely used.†Xu Chongqing said that not long ago, the provincial Academy of Sciences organized experts to investigate the application of ground source heat pumps in our province.
Driven by the application of technology, our province currently has 21 ground-source heat pump manufacturers. The products involve water sources, soil sources, and sewage-source heat pump units. Among them, Texas and Weifang are relatively concentrated, in particular, Fulton, Yantai, and Belater, Texas. And other companies have entered the top 5 in the same industry in the country.
Both local governments and energy giants have increasingly valued the development of geothermal resources.
It is reported that senior CNPC executives have stated that by 2020, the company will invest 10 billion yuan to develop new energy sources, including six aspects of geothermal resources. Industry analysts also pointed out that with the reduction in the cost of ground-source heat pump investment, it is expected to accelerate the popularity of new projects, and it is expected that the overall industry performance will increase year by year.
The status quo of the industry restricts industrial upgrading. “Although the prospects for geothermal development are very good, due to the high profits of the ground source heat pump industry and the low threshold, many non-specialized companies have joined the industry, resulting in uneven levels of technology, and rushing into the market through price warfare. A certain degree of vicious competition has also affected the promotion of technology,†said Chang Chunchun.
At present, "China lacks a comprehensive evaluation system for source heat pump systems and a strict market access system in different forms. It is unable to effectively carry out evaluations of system reliability and energy conservation effects. Market operations are not standardized, and vicious competition is at the expense of project quality. There is aggravating trend.†In the view of Changchun, it is necessary for the state to introduce the industry access standards and industrial target evaluation system as soon as possible.
Xu Chongqing said during the survey, “At present, geothermal system integrators and engineering companies have uneven levels of technology, and the calculation of underground thermal fields, selection of backfill materials, and insufficient understanding of the thermal and thermal balance of underground thermal fields have led to an operational cost after the completion of the project. High temperature, unsatisfactory heating and cooling effects, etc."
At the same time, the ground source heat pump production companies have less mastery of core technologies. The compressors of the core compressors all rely on imports. The innovation capability is not strong, the product features are not prominent, and the degree of product homologization is high. Occupying the market with price wars occurs from time to time.
Changjiu Chang believes that the ground-source heat pump as a new thing requires the government to continue to increase support and encouragement at the policy level. It also needs to regulate the current market conditions, set thresholds to improve the technology and construction level of the entire industry, and promote geothermal energy in our province. The development and application industry is developing steadily. Xu Chongqing also stated that “we should implement the national support policies for the development of new energy industries, formulate relevant policies and implementation methods for our province, and scientifically guide enterprises to increase the scale of investment and upgrade the industrial level.â€
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