In winter, the demand for power supply and heating in many places continues to rise, and energy ** ushered in a "big test". In order to cope with the recent large-scale cold wave and low temperature, rain, snow and freezing weather, all localities and departments have taken a variety of measures to ensure the safety and warmth of the people in winter.
Judging from the overall situation of energy supply in this year's heating season, with the joint efforts of various regions, relevant departments and enterprises, the overall situation of energy supply in the country has been good since the beginning of winter, and the work is stable and orderly, and the energy needs of the masses have been better guaranteed. Li Chao, deputy director of the Policy Research Office and spokesman of the National Development and Reform Commission, said.
Since the beginning of the heating season, the country's coal output has remained high;The average daily power generation is 255600 million kWh, an increase of 87%。According to the data, at the end of November, the coal storage of thermal power plants in the country exceeded 200 million tons, an increase of about 6 million tons from the end of October and a year-on-year increase of about 28 million tons, and the coal storage was available for about 33 days.
Since the beginning of this year, the supply and demand of coal production in the country have been stable and stable, laying a firm foundation for ensuring coal supply throughout the year. Judging from the data of previous years, the raw coal output in the last month of this year will continue to operate at a high level, even if the uncertainty of reaching a new high is large, but it will remain at 3The probability of more than 800 million tons is high. Industry experts said.
At present, the national power system is in full swing, accelerating the construction of power grid projects, strengthening the overall allocation of power across regions, improving the response ability of the demand side, and playing a "combination punch" of power supply.
Recently, Unit 2 of the 21 million kilowatt ultra-supercritical coal-fired unit of the Yueyang Power Plant of China Energy Construction Hunan Thermal Power Plant successfully passed the 168-hour full-load trial operation, and the project leaders of all parties signed the "Unit 2 Handover Production Handover Letter" on the spot, marking the official handover of Unit 2 to be put into operation.
After the completion of the project, it can generate about 8 billion kilowatt hours of electricity per year, which can meet the power energy demand of Hunan and even the central region, provide a solid guarantee for the power of Hunan Province in the severe winter, and give full play to the role of "ballast stone" and "stabilizer" of energy supply.
In the next step, we will work with relevant parties to accelerate the construction of Shanxi, Mengxi, Mengdong, northern Shaanxi and Xinjiang coal green transformation bases, and optimize the layout of coal production and developmentPromote the stabilization of coal ** in a reasonable range, and maintain a high level of coal production;Expand cooperation with major coal resource countries and stabilize coal importsKeep an eye on the northeast, two lakes and one river, southwest and other regions, and effectively respond to the possible regional coal tightness;In view of the possible problems of coal consumption for people's livelihood in winter, point-to-point coordination and solution should be solved when necessary, and every effort should be made to ensure coal supply. Liu Tao, director of the Coal Department of the National Energy Administration, said.
Recently, the temperature in the southern region has dropped off a cliff. The cold and cold wave weather is likely to cause light to moderate icing on the transmission lines in western and central Guizhou, northeast Yunnan, Guangdong, and northern Guangxi, bringing challenges to power supply.
It is reported that as of December 13, China Southern Power Grid has completed the implementation of 19 anti-icing projects, including 45 sets of newly installed icing monitoring terminals, 38 simulated wires, 58 sets of related equipment and facilities testing and maintenance, and a total of 30 tests, laying a solid foundation for the peak winter in the five southern provinces and regions.
Affected by the strong cold air, rain and snow cooling weather continued to affect many places in northern China. At 0:00 on December 15, the first unit of the largest pumped storage power station in Northeast China, State Grid Xinyuan Liaoning Qingyuan Pumped Storage Power Station, successfully passed the 15-day trial operation and was officially put into operation for power generation. The Northeast Branch of the State Grid comprehensively studied and judged the trend of load changes, and in accordance with the principle of "should be combined and should be discharged", all 4 million kilowatts of standby and shutdown units were activated, and long-term power balance information was released in advance.
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. Industry experts said that the relevant departments should pay close attention to the energy supply and demand situation, strengthen the early warning and judgment of supply and demand, strengthen the production and dispatch of coal, natural gas, electricity and other energy, ensure the safe and stable production and transportation channels of coal and natural gas, 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.
In addition to conventional energy sources such as coal, many places are also actively exploring new ways of clean energy heating such as solar energy and geothermal energy to provide green support for people to warm up in winter.
Recently, the first clean energy heating pilot project was launched, and the heating franchise pilot will be carried out in 7 counties (districts) and urban areas, and at the same time, the pilot work of clean energy heating projects in townships, agricultural and pastoral areas will be carried out above 5,000 meters above sea level, so as to help achieve full coverage of clean energy heating.
In Xiaosigou Town, Pingquan City, Chengde, Hebei Province, the local people have used the "distributed photovoltaic + electric heating" energy consumption model. The villagers installed electric heating equipment at home and installed rooftop photovoltaic panels, and the electricity generated by the power panels was given priority to the villagers for heating, and the excess electricity was sent to the power grid.
According to the official of the National Energy Group on December 17, the daily power generation of the National Energy Group completed 40100 million kWh, heat supply completed 3.65 million GJ, an increase of 5 compared with the highest value in the same period last year200 million kilowatt-hours and 390,000 gigajoules both set a record for the highest electricity and heat in the history of the National Energy Group during the peak winter. In the case of frequent cold waves and rising demand for electric heating, it strongly supports the safety and reliability of electric heating**.
Experts said that on the whole, the country's energy supply and demand are stable, the supply-side coal production capacity has been fully released, the process of replacing coal power with new energy on the demand side has accelerated, and the improvement of coal transportation capacity and the construction of power transportation channels have effectively guaranteed the connection between energy supply and demand. (Chan Ching-yee also contributed to this article).