Since the beginning of summer, the electricity consumption of the whole society has gradually increased——
Confidence in power supply during peak summer
Our reporter Liao Ruiling
June 21 is the summer solstice, the hottest time of the year.
Recently, many places have issued high temperature yellow warnings. The temperature in some areas is as high as 40 degrees Celsius, and the electricity consumption of residents has increased significantly.
With the stabilization of the epidemic, enterprises have also resumed work and production at full speed.
Electricity demand is at its peak of the year.
What is the situation of the peak summer this year?
Is the national electricity supply guaranteed?
Electricity supply and demand "tight balance"
In summer, electricity consumption rises with the temperature.
"When the weather is hot, the monthly electricity bill will be significantly higher." The person in charge of a notebook parts processing company in Zhangjiagang City, Jiangsu Province told reporters, "Not only do the office buildings have to be air-conditioned, but the production workshop also has to increase investment in ventilation equipment. In recent months, electricity bills have been much higher than usual."
June to September is the peak period for electricity consumption.
The surge in demand for air-conditioning cooling caused by high temperature weather, especially extreme high temperature, is the main factor for the shortage of electricity supply in summer.
In addition, it is rainy and prone to floods in summer, and there is a hidden danger of damage to power equipment in some areas, which also affects the electricity consumption for production and living.
How is the electricity supply and demand situation this summer?
Wu Shanshan, director of the Macroeconomic Research Office of the Institute of Economics and Energy Supply and Demand, State Grid Energy Research Institute, told this reporter: "At present, the domestic epidemic prevention and control situation is generally improving, and the effects of policies and measures to stabilize growth are gradually showing. The orderly advancement of production, the gradual restoration of production and living order, and the rapid growth of electricity consumption in some industries and regions is expected."
The rising demand for electricity has brought challenges to the power supply.
Henan Electric Power Company predicts that the power security situation in Henan Province will be severe and complicated during peak summer. It is expected to exceed 20%.
Meng Gang, director of the Zhejiang Provincial Development and Reform Commission, said that due to the impact of the international situation, supply and demand relations, etc., since the beginning of this year, the price of energy resources has been tight and high, and Zhejiang Province is facing great pressure to ensure the supply and price of energy. 10,000-7.5 million kilowatts.
The report released by the China Electricity Council believes that due to various factors such as domestic and foreign epidemics, fuel supply, temperature, precipitation, and the continuous large-scale and severe losses of coal power companies, there is uncertainty in the power supply and demand situation.
It is expected that during the peak summer season this year, the national electricity supply and demand will be generally balanced, and the electricity supply and demand will be tight during peak hours.
Among them, the power supply and demand in the Northeast and Northwest regions are basically balanced; the power supply and demand in the South, East China, Central China, and North China regions are tight during peak hours.
Guaranteed supply has a solid foundation
During the peak summer season, energy and power companies make every effort to ensure supply.
On June 2, a joint flood control emergency drill was launched at the Dadu River Basin Cascade Power Station of the National Energy Group Dadu River Company.
"Torrential rains are common in the basin, the flow continues to increase, and the power stations of the Dadu River will reach the warning flow" "The production command center is now officially launching the flood control emergency plan level IV response" "Immediately put in the flood control backup power supply, and coordinate the maintenance company to send additional forces to participate in equipment rescue" ... The relevant person in charge of the National Energy Group told reporters that the power supply must be prepared for extreme weather emergencies and prevent problems before they occur, so as to ensure that the electricity consumption for production and living will not fluctuate too much due to climate change, including good weather and water conditions, flood control Risk prediction and power dispatching plans, etc.
In addition to maintaining and operating existing power equipment, new power is also critical to ensuring power supply during peak summer.
On June 1, the No. 3 350,000-kilowatt unit of Huaneng Dalian Thermal Power Plant successfully passed the 168-hour full-load trial operation and was officially put into commercial operation.
As a key project of power supply guarantee in Liaoning Province, the main economic, technical and environmental protection indicators of this unit are excellent. After being put into operation, it will effectively alleviate the shortage of power supply in Liaoning during the peak summer season.
Looking at the whole country, in the first five months of this year, the newly installed power generation capacity in China was 52.98 million kilowatts, which was 15.55 million kilowatts more than the same period of the previous year, which will effectively meet the electricity demand during the peak electricity consumption period in summer.
"There is a solid foundation for ensuring power supply during the peak summer season this year," said Zhao Chenxin, deputy director of the National Development and Reform Commission.
As of the end of May, the country's installed power generation capacity reached 2.42 billion kilowatts, which is expected to increase to 2.45 billion kilowatts before the peak summer.
At the same time, the inflow of water from major river basins this year is better than expected. As of mid-May, the national hydropower generation has increased by 19.3% year-on-year, and the amount of water that can be generated by key hydropower plants has increased by 25.5% year-on-year.
The coal storage in the power plants under the national unified regulation has reached more than 159 million tons, an increase of more than 50 million tons over the same period of last year, and the available days are 32 days.
"We are confident and capable of ensuring a smooth and orderly summer season for national power peaks," Zhao Chenxin said.
In the second half of last year, there was a campaign of "carbon reduction" in some regions, which led to power outages, which had a serious impact on normal production and life.
The executive meeting of the State Council held not long ago stressed that power cuts will never be allowed.
How can this be ensured in the context of a tight balance between electricity supply and demand?
Wu Shanshan believes that on the one hand, it is necessary to strengthen the tracking and analysis of the energy situation and safety early warning, increase the production, transportation coordination and price supervision of thermal coal, ensure the continuous and stable supply and price of thermal coal, and ensure the gas supply in areas with a large proportion of gas-fired power generation. .
On the other hand, it is necessary to urge power generation enterprises to strengthen the operation management of in-service units, reduce unplanned shutdowns, and ensure stable and full generation of units; urge power grid enterprises to do a good job in safety production, give full play to the role of power grid allocation resources, improve emergency plans, and strengthen emergency preparedness , to ensure safe power supply.
At present, local power supply companies have taken active actions to coordinate power supply and green and low carbon.
Coal storage in centralized power plants is at a high level
China is a big coal country.
In recent years, new energy has developed rapidly, and the supply of wind power and photovoltaics has continued to increase.
But in general, coal still plays the role of "ballast stone" in energy supply, and coal power accounts for about 60% of the total power generation of the whole society.
What about coal supply in the context of rising global energy prices?
The implementation of coal supply and price stability has achieved remarkable results.
Taking the National Energy Group as an example, as of June 15, the Zhuneng Group, a subsidiary of the National Energy Group, has produced a total of 27.05 million tons of self-produced commercial coal, generated 1.588 billion kWh of electricity, and stripped 119.02 million cubic meters of energy.
The relevant person in charge of the China Coal Transportation and Marketing Association revealed that 16 large coal enterprises, including National Energy Group, China Coal Group, Jinneng Holdings, etc., have fully completed the tasks of signing medium and long-term contracts, performing contracts and re-signing imported coal. The compliance rate reached 98%, exceeding the national target and helping the coal market run smoothly.
Some major coal-producing provinces accelerated the release of advanced coal production capacity, accumulating energy and stabilizing inventories.
Zhang Xiang, spokesman for the Shanxi Provincial Development and Reform Commission, said that under the premise of ensuring safety, Shanxi "should check and increase the number of coal mines that meet the conditions for nuclear increase", and speed up the resumption of construction of coal mines that meet the conditions of suspension and delay. Proceed to advance the continuous allocation of coal resources, and appropriately deploy advanced production capacity projects.
Relevant departments in Inner Mongolia proposed to release high-quality coal production capacity in an orderly manner on the premise of ensuring safe, clean and efficient utilization.
Promoting the formalities for increasing production capacity and increasing the scale of construction of coal mines with guaranteed supply and verification, and realizing production in accordance with laws and regulations as soon as possible.
The price formation and supervision mechanism are improving day by day.
From May 1, the "Notice on Further Improving the Coal Market Price Formation Mechanism" issued by the National Development and Reform Commission was officially implemented, which clarified the reasonable range of medium and long-term transaction prices for coal (domestic thermal coal).
The "Announcement on Clarifying the Price Gouging Behavior of Operators in the Coal Sector" issued thereafter defines the illegal behavior of price gouging in the coal sector.
The relevant person in charge of the National Development and Reform Commission said that when it is found that the price exceeds the reasonable range, it will immediately carry out a reminder and interview, and guide the coal price to return to the reasonable range through investigation, notification and other means if necessary.
"Judging from the current situation, the effect of the policy of maintaining the quantity and price of coal is more obvious." Wu Shanshan told this reporter.
From January to May, the country produced a total of 1.81 billion tons of raw coal, a year-on-year increase of 10.4%, indicating that domestic coal self-sufficiency has improved; in terms of price stabilization, at the end of May, the price of 5,500 kcal thermal coal in Ordos and the price of 5,000 in Qinhuangdao Port. The closing price of kcal thermal coal increased by 7.8% and 36% year-on-year respectively.
In contrast, at the end of May, the thermal coal price index of Newcastle Port in Australia and the thermal coal price index of Richards Port in South Africa rose by 235.5% and 196.1% respectively year-on-year, and the fluctuation range of domestic coal prices was much lower than that of the international market.
Meng Wei, a spokesman for the National Development and Reform Commission, said that the coal storage in the nationally-regulated power plants is at a historically high level, creating conditions for power security during the peak summer season.
The next step will be to comprehensively strengthen the guarantee of fuel supply, including increasing coal production and supply, paying close attention to the signing and performance of medium and long-term contracts for thermal coal, and concentrating resources to ensure the supply of thermal coal and natural gas for peak power generation.
At the same time, all kinds of generator sets should be fully generated, to ensure that the output level of thermal power is better than normal, and to generate more hydropower to save electricity and coal consumption.
It is also necessary to optimize the operation and dispatch of the power grid, give full play to the role of a platform for optimizing the allocation of large power grid resources, increase the strength of cross-regional and cross-province mutual assistance, standardize the initiation of emergency dispatch, and ensure the orderly supply of electricity.
In addition, the emergency supply guarantee plan will be improved.
Meng Wei said: "We are encouraged to reduce the peak power gap through market-oriented demand response, urge all localities to refine and improve emergency supply guarantee plans in various situations, and carry out practical emergency drills in advance, so as to be prepared, and to ensure people's livelihood and key users under extreme conditions. not be affected.”