In China's first 200 million tons of coal production base - the production line of Shendong mining area, a picture of coal supply guarantee hot scenes come into view
100 meters underground, the shearer drum rotates rapidly, and high-quality coal with low sulfur, low phosphorus and low ash is stripped off from the coal wall; In the washing center, each workshop efficiently processes clean coal, and impurities such as gangue and sediment are screened and removed; There are about 110 10,000-ton coal transport trains loaded with "Shendong Coal" at the loading station every day, which are lined up in a long line and driven out and sold to ...... all parts of the country
The staff of the Shendong mining area has increased the frequency of inspections at the loading station, and hundreds of special coal trains are transported from here to various places every day. Photo courtesy of the interviewee.
During the peak winter, China's central heating is growing rapidly, and the demand is very strong, which is more dependent on high-carbon fossil energy. At the same time, with China's strong support for new energy and continuous technological progress, the proportion of clean energy in the first class has increased, becoming an important supplement to energy during the peak winter. Hu Runqing, a researcher at the National Energy Research Institute, said that it is necessary to promote the clean and low-carbon transformation of heating, and adopt appropriate heating methods according to local conditions to ensure that the masses are warm for the winter and holidays.
Actively play the role of "ballast stone".
Ensuring coal stability**.
In order to protect the people's warmth in winter, at present, the coal industry has strengthened safe production, adhered to digital empowerment, continued to improve transportation capacity, accelerated the release of high-quality production capacity, and actively played the role of coal "ballast stone".
The latest data shows that the electricity consumption of the whole society in 2023 will be 9,224.1 billion kWh, a year-on-year increase of 67%。In 2023, China's industrial coal output above designated size will be 46600 million tons, a year-on-year increase of 29%；Imported coal 4700 million tons, a year-on-year increase of 618%。In 2023, the total number of domestic coal ** will be 51300 million tons, a record high.
In order to do a good job in energy security and warm supply, Shanxi has made every effort to stabilize energy production in recent years, increase the output of coal, electricity and unconventional natural gas, and meet the demand for power generation and heating. According to the data, in 2023, Shanxi's coal output will increase by 57.43 million tons to 137.8 billion tons.
At present, the demand for coal in many places across the country has increased. In order to ensure the safe and smooth transportation of thermal coal, the Jixi Railway Depot coordinates the transportation capacity resources, optimizes the transportation organization, continuously compresses the operation time, ensures that the vehicles are quickly picked up and delivered, and the vehicles are quickly released and compiled, so as to ensure the transportation of thermal coal and heating coal at full capacity.
Since November 1 last year, Jixi Station has sent 9414 cars of coal, 62690,000 tons; Jixi train depot has sent 19,840 cars of coal, 132580,000 tons, providing a strong guarantee for the stability of coal transportation across the country and the warm winter of the people.
Recently, the pilot task of "R&D and application of remote centralized control technology for the whole process equipment of coal terminals" has been accepted by the Ministry of Transport, and the pilot task relies on the construction of Huanghua Port in Hebei Province.
The stacker of the Huanghua Port Coal Yard of the National Energy Group is in operation. Photo courtesy of the interviewee.
It is understood that Huanghua Port is the shortest port in Shaanxi, Shanxi and Inner Mongolia for coal export and land transportation, and undertakes the important transportation tasks of western coal transportation to the east and northern coal transportation to the south, with an annual coal throughput of more than 200 million tons, and is also the largest coal launching port in China.
The application of remote centralized control technology for the whole process equipment of the coal terminal can improve the annual coal transfer capacity of Huanghua Port by about 37 million tons, and form standards and specifications in the field of coal ports, so as to realize the essence of production and operation links of 'reducing personnel, increasing safety and improving efficiency'. The relevant person in charge of Huanghua Port introduced.
At this stage, coal is still the main energy source in China, especially in the field of power production, and about 70% of the power generation of the whole society is still coal power. Sun Chuanwang, a professor at the China Energy Economics Research Center of Xiamen University, said that in the sense of ensuring energy security and stabilizing energy, coal plays an irreplaceable role as a "ballast stone" and "basic disk".
Vigorously develop clean heating.
Help the masses to spend the winter "green".
In recent years, we have vigorously developed clean energy such as hydropower, photovoltaic and wind power, effectively alleviating the shortage of electricity in winter and spring, and more and more farmers and herdsmen in high-altitude remote areas have stable electricity, and the demand for electricity for economic and social development has been rapidly released.
The data shows that at present, the installed capacity of hydropower, photovoltaic and wind power accounts for respectively. 4%。Up to now, clean energy accounts for 91 percent of the installed power capacity44%, basically realizing clean energy power supply.
*Aerial photography of the power supply guarantee project of 120,000 kilowatt photovoltaic power generation project in Huadian Xeni District. Photo by Zhao Shubin.
At present, new energy storage has increasingly become a key technology for China's construction of a new energy system and a new power system, an important direction for cultivating emerging industries, and an important starting point for promoting the green and low-carbon transformation of energy production and consumption. Bian Guangqi, deputy director of the Department of Energy Conservation and Science and Technology Equipment of the National Energy Administration, said at a recent press conference.
Recently, the largest energy storage power station in the Guangdong-Hong Kong-Macao Greater Bay Area, Baotang Energy Storage Station, was officially put into operation in Foshan. As a large-scale urban "power bank", the Baotang energy storage station can use clean energy such as wind and solar energy to "charge" when the electricity consumption is low, and the green electricity can be stably and reliably transmitted to thousands of households during the peak power consumption.
According to the calculation of "two charging and two discharging" every day, the Baotang energy storage station can deliver 4300 million kWh of clean electricity, meeting the electricity needs of 200,000 households and reducing carbon dioxide emissions by 300,000 tons.
The new energy storage has the advantages of fast response, flexible layout, and short construction period, which can accurately match the load needs of the power grid, maximize its regulation value to the power system, and help unstable and fluctuating clean energy to be connected to the grid on a large scale and with a high proportion. The relevant person in charge of China Southern Power Grid Energy Storage Technology Company introduced.
At present, all localities are constantly exploring new ways of clean heating, actively achieving the "double carbon" goal, and effectively improving people's sense of gain and happiness.
In recent years, China is actively increasing the transformation and development of clean energy while ensuring the supply of traditional energy, China's clean energy transformation construction speed is fast, structural adjustment is fast, the development of new energy is diversified, scientific and large-scale trend, the power grid system is highly synergistic, and has a leading advantage in technology. The relevant person in charge of the National Energy Investment Group said.
Strengthen the operation and maintenance of power grids.
Ensure the stability of people's livelihood and energy consumption.
Since the large-scale cold wave hit, many places have closely tracked climate change and changes in the supply and demand situation, strengthened the operation and maintenance of the power grid, and actively adopted measures such as increasing the issuance of coal power and mutual aid support, so as to ensure the safe and stable operation of the power grid, reliable power, and give priority to ensuring the daily electricity consumption of residents.
Due to the drop in temperature, the power supply and heating load of rural residents in Dafeng area of Yancheng, Jiangsu Province has recently increased significantly. In order to eliminate potential safety hazards for the warm winter, the service team of the State Grid Yancheng Dafeng District Power Supply Company came to Haiphong Village, Dazhong Street, to carry out the inspection of electrical equipment in the village, strengthen the operation and maintenance of rural power grid equipment, and escort the people's electricity with heart.
At present, with the joint efforts of all parties, the country's energy operation is generally stable. Jin Xiandong, director of the National Policy Research Office, said that in the next step, we will closely track the trend of extreme weather changes, organize major energy companies to prepare emergency peak shaving resources in advance, strengthen the safe operation of the power grid and disaster maintenance, and do a detailed power load management plan and natural gas emergency supply guarantee plan to ensure that the people are safe and warm for the winter and holidays.
Affected by the cold wave weather, the heating electricity load in Guangdong, Guangxi, Guizhou and other places continues to increase. On January 23, the maximum load of China Southern Power Grid reached 21.5 billion kilowatts, of which about 22 million kilowatts of new heating load were added.
The staff of Fengshun Power Supply Bureau of Meizhou, Guangdong Province of China Southern Power Grid conducted special inspections and special maintenance of key line equipment. Photo by Xu Huifang.
In order to ensure the safety of the power grid and the reliability of electricity, since January 20, China Southern Power Grid has carried out melting and de-icing work for many consecutive days, and as of 8 o'clock on the 24th, a total of 55 melting and de-icing lines have been implemented, which has eliminated the hidden dangers of the safe operation of the power grid in a timely manner.
To ensure that the people are safe and warm through the winter, it is very important to ensure a stable and sufficient supply of energy. Experts said that relevant departments should pay close attention to energy supply and demand, strengthen supply and demand early warning and research and judgment, strengthen coal, natural gas, electricity and other energy production, scheduling, ensure the safe and stable production and transportation channels of coal, natural gas, etc., improve the capacity of coal, electricity, oil and gas, and ensure the stability of coal, electricity, oil and gas and the safe operation of the power grid in the peak winter. (Tian Xiaoli and Chen Jingyi also contributed to this article).