? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?source: Economic DailyRelease time: 2024-06-03 14: 04: 38

? ? ? Since this year, Electricity consumption continues to grow rapidly, before 4 The total electricity consumption of the whole society exceeds 3 Trillion kilowatt-hours, Year-on-year growth 9%. At the same time, Temperatures are high in most parts of the country. The key period of summer kurtosis is coming, What are the new characteristics of electricity used in summer in China? How is the energy and power supply situation? The reporter interviewed companies and experts on relevant issues.

　　The electricity load will increase rapidly

　　Weather is the key factor affecting the summer kurtosis of electric power. Data display, 1 month 1 solstice 5 month 20 day, The national average temperature is higher than the same period of the year 0. 9 Degree Celsius, It's the third highest on record. Liu Yunyun, Deputy Director of the Climate Prediction Room of the National Climate Center, predict 2024 Annual welcome kurtosis during summer, Except eastern Inner Mongolia, Liaoning (Province) , Ji Lin, The temperature in Heilongjiang and other places is close to the same period of the year, The temperature in most parts of the country is higher than usual.

　　Higher temperatures mean more demand for electricity. As a large province of electricity, Jiangsu is a key area for guaranteeing power supply in summer every year. "This summer, Jiangsu may experience periodic high temperature heat wave, Resulting in a sharp increase in cooling load demand, It brings severe challenges to the power supply guarantee. " State Grid Jiangsu Power Co. , LTD. Dispatching control center dispatching planning division director Wang Zhicheng expected, This summer, the maximum load of the whole network in Jiangsu increased year-on-year 1300 megawatt.

　　Zhejiang Electric Power Industry Association also released recently "Proposal for the protection of electricity supply for kurtosis summer" , Call on power enterprises to prepare for summer peak. It is understood, before 4 In Zhejiang Province, electricity consumption increased year on year 11. 3%, Combined with the current weather information forecast and energy output calculation, This summer, the power supply and demand in Zhejiang peak hours are tight.

　　In the context of climate change, Energy Power supply and demand are subject to large changes in key factors, Growing uncertainty and other challenges, It is increasingly difficult to balance power supply and demand. Ouyang Changyu, deputy chief engineer of State Grid Corporation and president of State Grid Energy Research Institute, said, From the power side, With the improvement of people's living standards, hypothermia, Heating load "peaking" Clearly characterized. From the power side, New energy is the main body of newly installed power generation, Intra-day output fluctuates greatly, Climate resilience to power systems, Safety toughness, Adjusting flexibility puts forward higher requirements.

　　 "During the summer of this year, It is expected that the national electricity load will increase rapidly, Maximum load growth over 1 gigawatt, Power supply is under pressure. " National Energy Administration comprehensive Department deputy director Zhang Xing said, Comprehensive research and judgment, This year welcomes the summer peak period, The country's electricity supply is generally guaranteed, Power supply may be tight in some areas during peak hours. If extreme, Severe weather, Power shortages are likely to worsen.

　　We will promote the construction of power grids

　　Meet the peak of summer, Strengthening the power supply is key, Key projects are the starting point. 4 month 1 day, The Yellow River basin has the highest elevation under construction, The largest installed hydropower project——The first unit of National Energy Group Maerblock hydropower Station was officially connected to the grid, This means that the upper reaches of the Yellow River in Qinghai section of the first 10 million kilowatt level "Waterscape storage" The core project of the multi-energy complementary and all-clean energy integration project has taken a key step towards full operation.

　　On the main stream of the Yangtze River, Udonde, White Crane Beach, Xiluodu, Xiangjiaba, The Three Gorges, Gezhou Dam 6 A massive hydroelectric power plant forms the world's largest clean energy corridor. Not long ago, Three Gorges Group promotes the industrial Internet platform in 6 The cascade hydropower station is deployed, Operation efficiency of hydropower station, Operation safety and reliability have been greatly improved, Help meet the kurtosis summer.

　　The power grid is the core hub connecting the production end and the consumption end of electricity. 4 month 28 day, The first of our country "Alternating straightening" Transmission engineering——Yangzhou to Zhenjiang±200 The kV DC power transmission project was officially completed and put into operation. For the first time, an active AC transmission line was converted to a DC line, It can significantly improve the interconnection capacity of power grids on both sides of the Yangtze River.

　　Wang Zhicheng introduced, In terms of power grid operation, State Grid Jiangsu Electric Power put into operation on schedule 500 Thousand volts Xuyi—akitvine, Nishijutu—Kaifeng Mountain—Wu Nan County "Single to double" , Wunan change the main change increase capacity and so on 8 Item main network, 1383 Project distribution of rural network to meet the kurtosis summer project, Secure power resources "Can get in, Fall down" .

　　As the proportion of new energy continues to increase, The demand for regulatory power sources such as energy storage power stations is also increasing during the summer of kurtosis. 5 month 20 day, Jingneng International Shandong Weihai Rongcheng City Chengshan 200 megawatt/400 The MWH shared energy storage project was successfully connected to the grid. This project is the largest electrochemical energy storage project in Jiaodong area, adopted "Shared lease+Spot trading of electricity+Capacity compensation" Operation mode, It not only improves the utilization rate of energy storage power station, It also reduces the cost of electricity for users.

　　State grid Weihai power supply company control center responsible for Sha Xin said, After the completion of the project, it is expected that the annual peak load and consumption of electricity will be about 2 Hundreds of millions of kilowatt-hours, Can give full play to energy storage peak collection and storage, peak-filling "powerbank" effect, It provides strong support for optimizing power system structure, To ensure the smooth and orderly supply of energy and power to welcome the kurtosis summer.

　　Tap the potential of existing power resources

　　Facing the structural contradiction of electricity supply and demand in the face of kurtosis summer, It is not economical to build new power supplies all the time, Balancing power supply and demand on a broader scale is key.

　　5 month 11 day, Minyue networking project for the first time 200 Kilowatt full channel capacity to send electricity to Guangdong, Fully support Guangdong's electricity demand. Affected by climate, Summer comes later in Fujian than in Guangdong, The power load characteristics of the two provinces are complementary. It is understood, when 5 Guangdong in October after the beginning of summer, Fujian still has surplus electricity to send to Guangdong, Support Guangdong summer power load peak; 7 Lunar solstice 9 Southwest water and electricity are abundant in October, Once Guangdong has a surplus of electricity, it can be sent to Fujian, Alleviate the power supply pressure during the peak of Fujian summer load. The two have good seasonal complementarity.

　　In recent years, Kwangtung, The two Fujian provincial development and reform departments signed an agreement on mutual transmission of electric power, Establish regular mutual assistance, Long-term mechanisms such as emergency mutual assistance, Normalized use of Minyue network project transport capacity, The results of inter-provincial electricity mutual benefit were expanded. The two provinces have so far completed 25 Secondary power transfer transaction.

　　After years of practice, Demand-side resources have gradually become a kind of widely involved in power grid operation, An important resource to realize the coordination and optimization of supply and demand resources. 4 month 1 As of today, Anhui Province optimized and adjusted the time-of-use electricity price, The peak and valley price periods shift forward, The spread widened, Peak hours are more concentrated, Encourage enterprises to adopt rational production scheduling, Off-peak production, Shift the main production load to the off-peak period, Can significantly reduce the cost of electricity.

　　 "We deployed early, Early action, Prepare for everything in advance, To all 2. 5 Ten thousand high-voltage industrial enterprises carried out time-of-use electricity price publicity, 'Every household counts' Help enterprises to calculate the electricity economy account, Service enterprises staggered peak production to reduce costs and increase efficiency, Help meet the kurtosis Xia Bao power supply. " State grid Anhui Electric Power Co. , LTD. Marketing Department of market operations director Baiyunlong said.

　　National Energy Administration development planning Department, second inspector Zhao Li said, To dig deep grid across the region, Potential of surplus and deficiency mutual benefit in regional power grid, We will urge all localities to use market-based approaches to improve their demand-side response capabilities. We will promote synergy between supply and demand, To meet the growing demand for electricity consumption to provide a reliable guarantee.