The total coal consumption of the hottest cities w

2022-08-03
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Strictly controlling the total coal consumption of coal cities may reach the top ten years ahead of schedule.

strictly controlling the total coal consumption of coal cities may reach the top ten years ahead of schedule.

China Construction Machinery Information

"China's nearly 300 prefecture level administrative regions are the decisive key to China's green and low-carbon transformation." Ma Zhong, Dean of School of environment, Renmin University of China, stressed. With the assistance of the international environmental protection agency natural resources conservation association and the World Wide Fund for nature, the China coal control project research group recently released the latest report "urban coal total amount control program policy and case study" written by the school of environment, Renmin University of China in Beijing

the report predicts that under the coal control policy, the peak of the total urban coal consumption can be advanced from 2030 under the benchmark scenario to 2020, with the peak of about 3.2 billion tons of standard coal, a decrease of about 42.3% compared with the benchmark scenario

urban coal control is the key

Mazhong introduces that the report divides 293 prefecture level cities (autonomous prefectures) in China into 13 categories according to city size and urban coal consumption intensity, and formulates coal consumption peak scenarios and supporting policies according to different characteristics of city types, so as to realize coal replacement, reduction and clean development. Among them, the coal consumption of 31 medium-sized urban agglomerations with high coal consumption, such as Wuhai, Linfen and Yuncheng, accounts for a large proportion of the country

according to the report, if the future urban development is locked by the existing path, it will be difficult to rely on coal consumption to achieve customer satisfaction in an all-round way, then the coal consumption in 2050 will be three times that in 2010, the physical health and environmental ecology of urban residents will continue to deteriorate, and the city will not make life better

the research shows that the cities with high average coal consumption (coal consumption per unit urban area) are mainly distributed in Hebei, Shandong, Shanxi and Yangtze River Delta. This region can be expressed as the high coal consumption triangle with "Beijing Xi'an Hangzhou" as the apex, which brings confidence to extruder enterprises. By analyzing the correlation between coal consumption and air pollution, the report found that the spatial distribution of cities with high average coal consumption is consistent with the distribution of regions with high annual average concentration of PM2.5, that is, they can be expressed as a triangle with "Beijing Xi'an Hangzhou" 6. The fixture of the electronic universal experimental machine has been specially designed, thus confirming the "contribution" of coal consumption to air pollution

the report divides the air pollution restriction levels of Chinese cities into 83 level I, 84 level II, 71 level III and 55 level IV cities. According to the report, China should first take strict and effective measures against Tier I and II restricted cities, implement the total coal consumption control policy, and force the reduction of coal consumption

according to the analysis, under the coal control policy, the peak value of the total urban coal consumption can be advanced from 2030 under the benchmark scenario to 2020. The peak value is about 3.2 billion tons of standard coal, a decrease of about 42.3% compared with the benchmark scenario. In 2050, the total coal consumption will be about 19 billion tons of standard coal, which is actively connected with the national new material manufacturing innovation center and the national new material testing and evaluation platform, a decrease of about 58.3%. The overall effect of the total coal consumption control policy is significant

policy incentives are indispensable

Lu Qi, a researcher at the Institute of Geographical Sciences and resources, Chinese Academy of Sciences, believes that the report is very specific about the classification of regional energy consumption types, and puts forward governance countermeasures, which is very targeted to the policy measures that should be taken for regional emission reduction in the future

taking Benxi City as an example, the report makes an empirical analysis on the implementation measures and cost-effectiveness of urban coal substitution. The report suggests that large thermal power plants should be used as the dominant heat source in urban heating areas, and some large boiler rooms can be retained as peak shaving boilers. At the same time, small and medium-sized boiler rooms with decentralized heating should be gradually dismantled

the participating experts pointed out that, compared with the decentralized heating boiler room, the economic benefits of the construction of thermal power plant include: centralized management and centralized production and operation, which greatly saves the management, operation and maintenance of decentralized small boilers and the decentralized transportation of coal and ash, and correspondingly saves a lot of costs; At present, the heat price is generally low. Traditional heat supply enterprises generally operate at a loss or at a low profit. However, the "income from cogeneration = income from power sales + income from heat sales" can recover the investment

the report suggests that governments at all levels can provide preferential policies in terms of financial subsidies and tax relief to encourage the development of central heating; The CHP project can be regularly monitored and certified and can be linked with preferential policies; Cogeneration projects are allowed to be combined with the main power and encouraged by referring to the relevant measures to encourage renewable energy power generation

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