If you open the column.
**The General Secretary pointed out that "high-quality development is the primary task of building a modern socialist country in an all-round way". The ** Economic Work Conference held at the end of last year proposed: "We must adhere to high-quality development as the last word in the new era".
In the new era and new journey, the majority of enterprises will unswervingly promote high-quality development, continuously enhance innovation momentum and development vitality, and strongly support the continuous recovery of China's economy.
From now on, this newspaper will launch a column of "Go to Enterprises, Look at High-quality Development" to show the new practices and new achievements of enterprises in some industries on the road of high-quality development, encourage the majority of enterprises to stabilize expectations, strengthen confidence, and act positively, so as to make new and greater contributions to the construction of a strong country and the great cause of national rejuvenation in an all-round way with Chinese-style modernization.
**The general secretary emphasized: "Energy security and security are related to the national economy and people's livelihood, and they are the 'great power of the country' that cannot be ignored for a while. It is necessary to accelerate the iterative upgrading of key technologies and core products and the empowerment of new technologies to improve national energy security and security capabilities. ”
In mid-to-late February, a new round of cold wave weather affected China's local area, and the power industry ushered in another challenge to ensure supply.
Xicheng District, Beijing, the headquarters of the State Grid (hereinafter referred to as the "State Grid"), on the large screen of the National Power Dispatching and Control Center, the digital real-time beating, the "smart brain" is running at high speed, and the sound of the first voice comes and goes, and a command is transmitted from here to all over the country.
Thousands of miles away, the Central China Power Grid Dispatching Center in Wuhan City, Hubei Province, was busy, "After receiving the instruction, the 500 kV Xianmeng line was heavily iced, and immediately arranged for personnel to melt the ice." The emergency rescue team immediately rushed to the scene to carry out the operation.
Challenges and tests, time and time again to ensure stable power supply, towering towers, silver lines, across mountains and rivers, light up thousands of homes.
Thoroughly implement the spirit of the important speech of the general secretary, the State Grid shoulders the primary responsibility of energy supply, bravely serves as the "pillar" of reliable power supply, strives to be the promoter, pioneer and leader of clean and low-carbon energy transformation, promotes effective investment, and serves the overall development of the country, a large power grid covers 26 provinces (autonomous regions and municipalities), and the power supply population exceeds 1.1 billion, providing strong support for the steady and far-reaching economic development.
Walk into the State Grid, track the "footprint" of one kilowatt-hour of electricity, and feel the vigorous pulse of high-quality economic development.
The "gold content" of one kilowatt-hour of electricity
A total of 35 UHV projects have been completed, with a cross-regional and inter-provincial transmission capacity of more than 300 million kilowatts.
One kilowatt-hour of electricity can irrigate about 014 acres of land, let an energy-saving lamp be on for about 90 hours ......Electricity is related to thousands of households.
At the junction of Sichuan and Yunnan, the Baihetan Hydropower Station is in full operation. In just 7 milliseconds, green electricity was delivered to Jiangsu, more than 2,000 kilometers away. Thanks to the commissioning of the Baihetan-Jiangsu UHVDC project, green power can be transmitted from west to east through this "highway", and the annual transmission of electricity is equivalent to half a year's electricity consumption in Nanjing, injecting strong impetus into Jiangsu's high-quality development.
The quality of electricity consumption has been significantly improved, and the production line can run at full capacity even during peak power consumption in summer and winter. Yuan Yan, director of the Foreign Cooperation Office of Longteng Special Steel, Changshu City, Jiangsu Province, said that the "upgrade" of the power grid has made enterprises more confident in expanding production.
The power grid is the "bridge" for the transmission of electricity. One end is a massive power supply, the other end is thousands of households, and the fine scheduling and reliability of each kilowatt-hour of electricity are inseparable from the hard power of the State Grid.
Build a strong "artery" of the power grid. The State Grid has built a total of 35 UHV projects of "19 interchanges and 16 directs", becoming the world's strongest and largest power grid, with a trans-regional and inter-provincial transmission capacity of more than 300 million kilowatts.
Build a flexible "regulator". In 2023, the scale of pumped storage in operation will exceed 33 million kilowatts, and the cumulative installed capacity of new energy storage will exceed 26 million kilowatts, continuously improving the regulation capacity of the power system.
Build a smart "safety net". A green and modern digital intelligence chain has connected more than 1,400 enterprises and more than 3,600 production lines, and the efficiency of emergency material procurement has been increased by more than 30%. Build the world's most advanced new generation of electromagnetic transient platform, and increase the efficiency by more than 3,000 times. "* Technology is equivalent to the 'combat sand table' of the power system, which used to scan and analyze the main grid 260,000 lines, 1The safety risk of 80,000 transformers, which took more than 10 days, now takes less than 5 minutes. Guo Qiang, vice president of China Electric Power Research Institute, said.
Only when the guarantee is strong can the response be orderly. Recently, the State Grid Yuncheng Power Supply Company maintained and installed 78 sets of first-class monitoring equipment in the ice-prone area of the hinterland of Zhongtiao Mountain, and submitted icing monitoring data every 2 hours for 16 transmission lines.
Electricity consumption is a barometer of economical operation. The State Grid promotes the coordinated efforts of "source, grid, load and storage" to strengthen cross-provincial and cross-regional power mutual assistance to ensure the safe operation and stable power of the power grid. In 2023, China's electricity consumption will increase by 6 percent year-on-year7%, of which the electricity consumption of high-tech and equipment manufacturing increased by 11 year-on-year3%。In the continuous recovery of the economy, new momentum is continuing to grow.
Not only energy supply, but also every kilowatt-hour of electricity plays a comprehensive role.
Stabilize investment in major projects. In 2023, the State Grid will start construction of 8 UHV projects including Hami-Chongqing, and put into operation 6 UHV projects including Baihetan-Zhejiang, and complete the power grid investment of 538.1 billion yuan throughout the year, a record high. In 2024, we will promote the construction of a new power system with a strong power grid with digital intelligence, and the scale of investment in the power grid is expected to exceed 500 billion yuan.
Help enterprises reduce costs and increase efficiency. "With the 'power-saving housekeeper', last year we upgraded high-energy-consuming equipment such as air compressors, and used steam waste heat to save more than 1 million yuan in electricity bills. The relevant person in charge of Anhui Jintian High-tech Materials Co., Ltd. said.
This "power-saving housekeeper" is a new service launched by State Grid Anhui Electric Power, the energy efficiency diagnosis team analyzes and evaluates the energy consumption of enterprise equipment, and proposes improvement plans. Focusing on the hot spots and difficulties of power supply services, by the end of 2023, the State Grid has provided a total of 1.53 million small and micro enterprises with zero-cost power connection.
Serve major national strategies. In Lanxi Port, Zhejiang, the State Grid Lanxi Power Supply Company has built and put into operation 9 ship shore power charging piles in the port, which can save about 245 tons of fuel per year and reduce the emission of various air pollutants by about 20 tons per year.
Hand in hand" power supply, the maximum time for power transfer and resumption can be shortened by more than 75%! In 2023, the 10 kV line interconnection and mutual insurance project between Shanghai Jinshan and Zhejiang Pinghu will be put into operation, allowing residents at the inter-provincial border to enjoy more reliable electricity** and contributing to the integrated development of the Yangtze River Delta.
Focusing on the overall situation and taking on the mission, the State Grid will better support and serve China's modernization with practical actions and results of high-quality development.
The "green content" of one kilowatt-hour of electricity
The cumulative grid-connected capacity of wind and solar new energy is nearly 8700 million kilowatts, with a utilization rate of more than 97%, helping green and low-carbon development.
To achieve the "double carbon" goal, energy is the main battlefield, and electricity is the main force.
Walking into the Binjiang Business District of Jinjiang City, Fujian Province, the bus charging station covering an area of 3,370 square meters built by State Grid Fujian Electric Power has become the first "optical storage and charging" integrated DC fast charging station in Fujian. "It can charge about 85% of the battery in 20 minutes, and it can travel about 170 kilometers. During peak demand, it can also send power back to the grid. Zhao Yinxing, a bus driver, is a "frequent visitor" here.
Extremely hot and windless" and "no light in the evening peak", new energy sources such as wind and solar energy have the characteristics of intermittency, randomness, and volatility, so how to "play a good match" with conventional power sources and energy storage facilities such as coal power?
The State Grid is accelerating the construction of a new power system that is clean, low-carbon, safe and abundant, cost-effective, supply and demand coordination, flexible and intelligent, so that the "green content" of one kilowatt-hour of electricity is getting higher and higher.
Strengthen the foundation and help new energy to be "developed" and "used well".
The rotary drilling rig is busy, the transport truck shuttles back and forth, and the construction of the Ningxia-Hunan 800 kV UHVDC transmission project is in full swing. As the first UHVDC project in deserts, Gobi and desert areas in China, the project will be connected to 9 million kilowatts of photovoltaic power generation and 4 million kilowatts of wind power, accounting for more than 50% of new energy electricity.
The State Grid promotes the construction of large-scale wind and solar bases and energy storage facilities, and at present, the cumulative grid-connected capacity of wind and solar new energy in the business area is nearly 8700 million kilowatts, and the utilization rate is maintained at more than 97%.
Promote transformation and actively promote electric energy substitution.
In Beijing, more than 5.1 million tons of loose coal consumption can be reduced per heating season through the implementation of clean heating transformations such as "coal to electricity" for residents. In Tangshan, Hebei Province, the original fuel-powered heavy-duty trucks have been replaced with electric heavy-duty trucks, and the number has reached nearly 10,000 ......The State Grid promotes electric energy substitution in a prudent, orderly and local manner, promotes the use of electricity instead of coal for clean heating in the northern region, and comprehensively carries out electric energy substitution projects such as all-electric scenic spots and all-electric ships, so as to promote green and low-carbon transformation.
Excellent service, power big data empowers green development.
According to the electricity carbon emission metering system, enterprises can carry out technological transformation more accurately and improve the export competitiveness of products. Xu Linghui, the statistical director of Zhejiang Dongfei Light Textile, said. In December last year, the power carbon emission metering system launched by State Grid Zhejiang Electric Power was put into use in Longyou County to realize real-time measurement of carbon emissions in the whole chain.
The scale of green electricity and green certificate trading has been expanded. In 2023, the State Grid will complete more than 61 billion kWh of green electricity transactions and more than 23 million green certificate transactions, continuously meeting customers' green power consumption needs and promoting energy conservation and carbon reduction in the whole society.
The "new content" of one kilowatt-hour of electricity
It has achieved a number of world-leading original achievements such as ultra-high voltage transmission and flexible DC transmission, and has driven the industrial upgrading of the industry.
The snow lotus on the ice shines, and the children of the grassland welcome guests. On February 17, the 14th National Winter Games opened in Hulunbuir, Inner Mongolia.
During the competition, it is in the period of heating and extreme cold supply, and a series of high-tech means have been put into use to ensure that the ice and snow event is held. "State Grid Mengdong Electric Power "Fourteenth Winter" Hulunbuir Command Branch Deputy Commander-in-Chief Meng Hui said.
With the help of "digital twins", the operating status is monitored. What used to take 2 hours to complete is now only 3 to 5 minutes. Use smart devices to achieve efficient inspection. In the substation, the intelligent inspection robot passes through the switch cabinets along the track steadily, and the two "eyes" automatically inspect with the help of holographic perception, infrared imaging and other technologies.
In the past, 'power protection' relied on fighting physical strength and time. Now, we are fighting for science and technology, fighting for efficiency, and transforming to smart power protection. Meng Hui said.
Enterprises are the main body of innovation. State Grid has deeply implemented the innovation-driven development strategy, better played the role of the source of original technology and the length of the modern industrial chain, and contributed to high-quality development.
Break the "stuck neck" technology and promote high-level scientific and technological self-reliance and self-reliance.
The relay protection device is the 'personal bodyguard' of the power grid, like a smart fuse, which can correctly 'trip' and cut off when the power equipment fails, which can ensure the safety of the large power grid. Zheng Yuping, the first consultant of NARI Group, introduced.
In response to technical problems, NARI Group has made great efforts to carry out technical research to achieve 100% independent and controllable operating systems and devices. "The secondary equipment of the power grid represented by the relay protection device has driven the development of more than 190 upstream enterprises, with an annual output value of 1.5 billion yuan. Zheng Yuping said.
In recent years, the State Grid has made a number of world-leading original achievements in the fields of ultra-high voltage transmission, flexible DC transmission, and large power grid safety control. In 2023, 5,715 invention patents will be authorized, 60 international standards will be approved, and 21 will be released.
Give full play to the leading role. The State Grid took the lead in establishing a new power system technology innovation alliance to carry out joint research, standard formulation and achievement sharing, and the number of member units expanded from the initial 32 to 62.
The industry has taken a new step. Zhumadian-Wuhan, Fuzhou-Xiamen UHV project directly drove more than 90 first-class suppliers of materials and equipment; A number of pumped storage power stations such as Yumen in Gansu Province and Daya River in Liaoning Province have driven the output value of upstream and downstream industries to increase by nearly 60 billion yuan ......In 2023, the State Grid will drive more than 1 trillion yuan of investment from upstream and downstream enterprises through fixed asset investment.
Give full play to the role of talents as the first resource. Open the robotic arm, identify the working wire, strip the insulation layer, and accurately complete the lead wire, all in one go. On February 5, a new generation of "Dawn" distribution network live operation robot completed the first 04,000 volt live operation.
Zhang Liming, the leader of the power distribution repair squad of State Grid Tianjin Binhai Power Supply Company, led the innovation team to continuously overcome technical problems such as insulation and electromagnetic interference, and upgraded the "Dawn" operation robot from the first generation to the second generation of robots, reducing the volume by 2 3 and the weight by 1 3, which meets the needs of complex environments and narrow space operations. Zhang Liming said.
Prop up "a net" to illuminate the road of development. Xin Baoan, Secretary of the Party Leadership Group and Chairman of the State Grid Corporation of China, said that the company will always bear in mind the "great man of the country", fulfill its strategic mission, work hard to promote high-quality development, and provide strong power support for comprehensively promoting the construction of a strong country and the great cause of national rejuvenation with Chinese-style modernization.