【Key Policies】The Ningde Municipal Bureau of Industry and Information Technology and other three departments issued the "Implementation Plan for Carbon Peaking in the Industrial Sector of Ningde City" to continue to promote industrial green power consumption
On April 19, the Ningde Municipal Bureau of Industry and Information Technology, the Ningde Municipal Development and Reform Commission, and the Ningde Municipal Bureau of Ecology and Environment issued the "Ningde Industrial Carbon Peak Implementation Plan" (hereinafter referred to as the "Implementation Plan").
The content points out that the focus is on controlling fossil energy consumption and increasing the proportion of non-fossil energy consumption. Strictly control the total coal consumption in the industrial field and key industries such as steel, non-ferrous metals, and electric power, and orderly carry out industrial coal and natural gas substitution, so as to help reduce and replace coal consumption. Expand the supply of renewable energy such as nuclear power, hydropower, photovoltaic and wind power, and continue to promote industrial green electricity consumption. Accelerate the construction of a new power system with new energy as the main body, and promote the gradual transformation of thermal power into a regulated and guaranteed power source.
Expand the breadth and depth of electric energy substitution, deeply tap the potential of electric energy substitution in the industrial field, accelerate the construction of power grids and power supply transformation, promote the replacement of coal, oil and gas with electricity in the field of terminal energy use, promote new energy vehicles, heat pumps, electric kilns and other new energy consumption methods, and focus on the electrification of medium and low temperature heat sources below 1000 °C in the industrial production process. Strengthen the management of the power demand side, carry out the construction of advanced enterprises and parks on the power demand side in the industrial field, promote the application of relevant technology products, increase the proportion of green power consumption, and optimize the allocation of power resources.
Actively promote the construction of a new power system in Ningde, and accelerate the construction of a smart and friendly flexible distribution network in the northern new city of Jiaocheng, Ningde. Enhance the coordination and interaction of source, grid, load and storage, develop distributed photovoltaic and multiple energy storage in qualified industrial enterprises and industrial parks, study and explore the feasibility of decentralized wind power construction and carry out pilot projects, and encourage qualified enterprises to carry out the construction of self-provided power plants and self-provided power sources such as "photovoltaic + energy storage". Strengthen the optimization and cascade utilization of the energy system, and promote new business formats such as central heating and energy supply hubs in the park according to local conditions. Encourage the park to build a green microgrid, and implement the park's "green power multiplication" action. Accelerate the demonstration application of new energy storage and improve the safe operation and efficient configuration of the power system.
Comments: The power industry, as the cornerstone of national economic development, directly reflects the prosperity and stability of the national economy. In recent years, with the rapid development of the mainland economy and the continuous improvement of people's quality of life, the demand for electricity has been growing day by day, showing a steady growth trend. However, the mainland is also facing multiple challenges such as energy structure transformation and environmental protection, which requires the power industry to actively embrace technological innovation and accelerate the pace of industrial upgrading to meet the growing demand for electricity and promote green and low-carbon development.
In this context, the "Implementation Plan" issued by Ningde City has far-reaching strategic significance. The plan is committed to expanding the supply of renewable energy such as nuclear power, hydropower, photovoltaic and wind power, and continuously promoting industrial green power consumption, so as to effectively increase the proportion of clean energy in the power structure and further promote the optimization and upgrading of the energy structure. This will not only help reduce the consumption of fossil energy and reduce carbon emissions, but also inject strong impetus into the sustainable development of the mainland economy.
At the same time, the implementation of the "Implementation Plan" will effectively improve energy efficiency and promote the sustainable development of the industrial field. By strengthening the management of the power demand side and carrying out the construction of advanced enterprises and parks on the power demand side in the industrial field, the plan will improve the optimal allocation of power resources and the proportion of green power consumption, and promote the balanced development of the power system. This helps to achieve efficient use of energy, reduce energy consumption costs, and improve the economic efficiency of enterprises.
In addition, the "Implementation Plan" also emphasizes improving the intelligence and flexibility of the power system and enhancing the power system's ability to resist risks. Through the promotion of new energy storage technologies, the development of distributed photovoltaics, multiple energy storage and other measures, the scheme will help solve the problem of peak-to-valley difference in the power system, improve the stability of the power system, and provide strong support for the large-scale access of renewable energy. This will further promote the green transformation and high-quality development of the power system, and provide a solid guarantee for the mainland to achieve its carbon peak and carbon neutrality goals.
Figure 1: China's power generation in the first quarter of 2017-2024
Source: National Bureau of Statistics, Zhiyan Consulting
The Standing Committee of the People's Congress of Changzhou City, Jiangsu Province officially issued the Regulations on the Promotion of New Energy Industry in Changzhou City to strengthen the construction of new power systems
On April 17, the Standing Committee of the People's Congress of Changzhou City, Jiangsu Province, officially issued the "Regulations on the Promotion of New Energy Industry in Changzhou City" (hereinafter referred to as the "Regulations"), which will be officially implemented on June 1, 2024.
The "Regulations" put forward that the focus is on building solar energy, hydrogen energy, wind energy, power batteries, new energy storage, new power equipment, new energy vehicles and other industries, and accelerate the layout of new energy industries in the future; The development and reform department shall, in conjunction with relevant departments and units, strengthen the construction of new power systems in accordance with national requirements, promote the increase in the proportion of new energy power utilization, and enhance the ability of distribution networks to accept distributed new energy。
【Key Event】Zhang Tingke of China Nuclear Energy Industry Association: It is estimated that nuclear power generation in mainland China will account for 10% in 2035
On April 15, Zhang Tingke, vice chairman and secretary general of the China Nuclear Energy Industry Association, said at the China Nuclear Energy Sustainable Development Forum that based on the research conclusions of the China Nuclear Energy Industry Association and related institutions, in order to achieve the goal of carbon peak and carbon neutrality, it is expected that by 2035, nuclear power generation will account for about 10% of China's power structure, which is comparable to the current global average, and by 2060, the proportion of nuclear power generation needs to reach about 18%, which is comparable to the current OECD national average.
In 2023, China's nuclear power units will generate 433.4 billion kilowatt hours, ranking second in the world, accounting for 4.86% of the country's power generation, equivalent to only 50% of the current global average, Zhang Tingke said.
Zhang Tingke said that up to now, there are 55 commercial nuclear power units in China, with a total installed capacity of 57.03 million kilowatts, second only to the United States and France, ranking third in the world, and 38 nuclear power units under construction and approved, with a total installed capacity of 44.8 million kilowatts, and a total installed capacity of more than 100 million kilowatts in operation, under construction and approved.
【Key event】More than seventy percent of power equipment companies achieved performance growth last year
On April 16, benefiting from the rise in industry prosperity, a number of listed companies in the power equipment industry chain reported good results. According to the data, as of April 16, 84 companies in the field of power equipment have disclosed their 2023 performance, of which 60 companies have achieved net profit growth, accounting for more than seventy percent, and 14 companies such as Pinggao Electric, Changgao Electric and Zhongyuan have doubled their performance. Looking forward to the future, many companies believe that under the joint efforts of overseas demand and domestic investment, the scale and growth rate of power grid investment may be further improved, and the field of power equipment is expected to maintain a high degree of prosperity.
【Key Event】Japan's Nuclear Regulation Commission has approved Japan's Tokyo Electric Power Company to restart Unit 7 of Kashiwazaki Kariwa Nuclear Power Plant in Niigata Prefecture
On April 15, Japan's Tokyo Electric Power Company announced that Japan's Nuclear Regulation Commission had approved its restart of Unit 7 of the Kashiwazaki Kariba Nuclear Power Plant in Niigata Prefecture, and that afternoon, the unit's reactor began to be filled with nuclear fuel. After a serious nuclear accident at the Fukushima Daiichi nuclear power plant in 2011, TEPCO shut down all of its nuclear power plants, and the refilling of nuclear fuel was part of TEPCO's preparations for the restart of the plant, which is not yet known.
According to Kyodo News, the filling operation requires loading 872 fuel assemblies into the reactor's pressure vessel, and it is estimated that it will take about two weeks to complete around the clock. After the filling is complete, it will take about one month to test the function of critical equipment such as control rods and emergency core cooling system to ensure safety.
Located in Niigata Prefecture in northwestern Japan, the Kashiwazaki Kariba Nuclear Power Plant is named after the two regions of Kashiwazaki and Kariwa, and has an installed capacity of 8,212 megawatts, making it one of the world's largest nuclear power plants in terms of net power generation. After the March 11, 2011 earthquake, TEPCO scrapped two nuclear power plants in Fukushima, and the Kashiwazaki Kariba Nuclear Power Plant was shut down in March 2012. The nuclear power plant's Unit 7, which supplies electricity to the Tokyo metropolitan area and other places, passed a safety review by the Japan Nuclear Regulation Commission in 2017, but was subsequently banned from restarting by the Regulatory Commission due to multiple safety vulnerabilities, and the ban was not lifted until December last year.
【Key Project】The first high-altitude UHV dismantling transformer in mainland China was assembled on site
On April 15, a 1,000 kV main transformer weighing 370 tons, supported by 144 steering wheels, slowly transferred out of the site of the Ganzi substation of the Sichuan-Chongqing UHV project, marking the completion of the on-site assembly of the world's first high-altitude UHV transformer. This is the world's first large-scale application of UHV main transformer dismantling and assembly technology.
It is understood that the Ganzi substation is the starting point of the Sichuan-Chongqing UHV AC project to absorb clean energy in western Sichuan, located in Xinduqiao Town on the western Sichuan Plateau, with an altitude of 3,450 meters. The construction of the project faces the triple challenges of high altitude, heavy ice cover and high seismic intensity. If you want to reach Ganzi Station, you must climb over the first pass of Kham at an altitude of 4,298 meters. The Ganzi Substation Owner Project Department of the UHV Construction Branch of the State Grid Corporation of China led the participating units to study and demonstrate for many times, and decided to adopt the main transformer dismantling technology, dismantling each 370-ton main transformer body into 14 modular components, and using 9 large transport vehicles, which were successively transported from Baoding, Hebei Province to the project site after being transported to the project site for on-site assembly.
It is reported that after the project is completed and put into operation, the voltage level of the main grid of the southwest power grid in the mainland will be increased from 500 thousand volts to 1,000 thousand volts, and about 12 billion kilowatt-hours of clean electricity will be transmitted every year, effectively undertaking power from the northwest, Tibet and other places, and greatly improving the overall power guarantee capacity of the Chengdu-Chongqing Economic Circle.
【Key Project】The first building of the Balikun converter station of "Xinjiang Power into Chongqing" was capped
On April 15, the construction of the Balikun converter station of the Hami-Chongqing ± 800 kV UHVDC transmission project (hereinafter referred to as the "Xinjiang Power into Chongqing" project) ushered in an important node: the hoisting of the last section of the steel structure workshop of the 750 kV GIS room was completed, marking the capping of the first building of the station.
The steel structure workshop of GIS room is one of the core buildings of the converter station, and after completion, high-precision electrical equipment such as GIS combined electrical appliances will be installed inside to collect, distribute and transmit electric energy. According to the requirements, the cleanliness in the plant will reach the million-level standard after it is put into use.
"We officially resumed work on March 1, and there are currently 1,249 construction workers in the whole station, which has entered the peak stage of civil construction. Xu Jiayang, deputy project manager of the 800 kV converter station project owner of the Balikun ± UHV construction branch of the State Grid Co., Ltd., introduced that according to the construction plan, the installation of accessories and equipment foundation construction of the 750 kV GIS room will be completed before the end of June, and the capping of the main control building and the comprehensive building will be completed; the civil engineering of the DC field area will be delivered in July and enter the equipment installation stage; the installation of 750 kV GIS indoor equipment will begin in September; and the installation of low-end converter and valve hall equipment will begin in November. "In June 2025, the Balikun converter station will be ready for power transmission, and it will be completed and put into use in December 2025. ”
The "Xinjiang Power into Chongqing" project is one of the first batch of power transmission projects of Shagehuang large-scale wind power photovoltaic base in mainland China, with a total investment of 28.6 billion yuan. The project starts from the Balikun converter station and ends at the Yubei converter station in Yubei District, Chongqing, passing through Xinjiang, Gansu, Shaanxi, Sichuan and Chongqing, with a total length of 2,290 kilometers of DC transmission lines, which can transmit more than 36 billion kilowatt-hours of electricity to Chongqing every year after completion and operation, of which clean energy accounts for more than 50%. At that time, Xinjiang will become the country's largest new energy power transmission base, making new contributions to the country's energy supply.
【Key Enterprise】Hunan Development held a board meeting to deliberate and approve the establishment of a wholly-owned subsidiary in Hengyang, Hunan Province, whose main business includes solar power generation technical services, wind power generation technical services, etc
On April 16, the 13th meeting of the 11th board of directors of the company deliberated and passed the "Proposal on Investment and Establishment of Wholly-owned Subsidiaries". According to the company's strategic planning and business development needs, the company invested in Hengdong County, Hengyang City, Hunan Province with its own funds to set up a wholly-owned subsidiary, Hunan Development Xiaochu New Energy Co., Ltd., to coordinate the development of new energy projects in the region, with a registered capital of RMB 10 million, and the company holds 100% equity.
On April 22, the wholly-owned subsidiary completed the industrial and commercial registration procedures and obtained the business license issued by the Hengdong County Market Supervision and Administration Bureau.
The company's business scope: general projects: solar power generation technical services, wind power generation technical services, photovoltaic equipment and components sales, wind farm related system research and development, energy storage technology services, emerging energy technology research and development, contract energy management, energy conservation management services, wind farm related equipment sales. (Except for projects that must be approved in accordance with the law, independently carry out business activities according to law with a business license) Licensed projects: power generation business, power transmission business, power supply (distribution) business, transmission, power supply, power receiving power facilities installation, maintenance and testing. (For projects subject to approval in accordance with the law, business activities can only be carried out after approval by relevant departments, and specific business projects are subject to the approval documents or licenses of relevant departments).
【Key Project】Shanghai ± 500 kV Nanqiao Converter Station "China Heart" ushered in the first "comprehensive physical examination"
Since April 16, State Grid Shanghai Electric Power has carried out a 7-day annual maintenance work on the ± 500 kV Nanqiao converter station, and the most important task is to carry out the first inspection of the "Chinese heart" in the converter station - the world's first controllable commutation converter valve (CLCC) with completely independent intellectual property rights, so as to further improve the health level of the equipment and lay a solid foundation for reliable power supply in the peak summer this year.
Commissioned in 1989, Nanqiao converter station is the receiving converter station of Ge Nan DC, the first commercial DC transmission project in China, with a maximum transmission power of 1.16 million kilowatts and an annual maximum transmission power of about 8.2 billion kilowatt hours. In June 2023, State Grid Shanghai Electric Power carried out the overall technical transformation of the core equipment of Nanqiao converter station "from fully imported to nationally produced", replacing the originally imported conventional converter valve with a controllable commutation converter valve (CLCC), which fundamentally solved the stubborn problem of "commutation failure" that affects the reliable operation of the converter station and greatly improved the operational reliability of Shanghai's main power grid.
"Since it was put into operation, the 'China Heart' has been running well, successfully avoiding 6 'commutation failures' caused by power grid fluctuations, withstanding the test of continuous high load in summer and winter, and significantly improving the operational reliability compared with the original imported converter valve. This first inspection is not only a 'comprehensive physical examination' of the equipment, but also accumulates valuable experience for the continuous and safe operation of the equipment in the future. Zhu Zhengyi, director of Nanqiao converter station, introduced.
It is reported that the controllable commutation converter valve (CLCC), which is a behemoth in the converter station, is assembled by nearly 10,000 components, and is one of the most sophisticated and complex power equipment. In order to ensure the high-quality completion of the first inspection, State Grid Shanghai Ultra High Voltage Co., Ltd. summarized and analyzed the operation data of the controllable commutation converter valve (CLCC) since it was put into operation, tailored the maintenance plan, and set up a "core team" composed of model workers, craftsmen, senior experts and other technical backbones, which can solve the "difficult and miscellaneous diseases" encountered in the maintenance process at any time.
According to the on-site arrangement, the annual inspection of the Nanqiao converter station and the first inspection of the CLCC are divided into eight operating faces, and a total of 151 tasks will be completed, of which nearly half of the maintenance and technical transformation tasks are related to CLCC. State Grid Shanghai UHV Co., Ltd. will control the safety and quality through strict on-site control and quality supervision, and make full use of the results of the construction of digital converter stations, and further improve the efficiency of maintenance operations through digital auxiliary means such as big data analysis and simulation operations.
"Controllable commutation converter valve (CLCC) technology is an innovation in traditional DC transmission technology, State Grid Shanghai Electric Power will apply and transform this innovation with international leading level, lead industrial innovation with scientific and technological innovation, vigorously promote scientific research achievements from the laboratory to the front line of power grid production, develop new quality productivity according to local conditions, and provide a stronger power guarantee for the construction of Shanghai's "five centers". Lu Zhihao, deputy director of the equipment department of the State Grid Shanghai Electric Power Company, said.
【Key Project】The first phase of the 80MW fishery-photovoltaic complementary photovoltaic power generation project in Yangxiang, Yixing, Datang will be sent soon
On April 16, Datang Yixing Yangxiang 80MW Fishery-PV Complementary Photovoltaic Power Generation Project (Phase I) successfully completed the reverse power transmission of the booster station, which also marks that the project has the conditions for power transmission. The project is expected to be completed by the end of this month, and the second phase of the project is being planned.
With a total investment of 343 million yuan, the 80MW fishery-photovoltaic complementary composite photovoltaic power generation project (phase I) in Yangxiang of Yixing covers more than 110 fish ponds and crab ponds in Xixi Village, Anle Village and Chengdian Village in Yangxiang Town, covering a total area of more than 1,400 acres. It will be jointly developed by Yangxiang Town and Yixing Yangxiang Town Runyang Company through the "Government and Enterprise Platform", and will be implemented by Datang Jiangsu Power Generation Co., Ltd. in March 2023. "The construction scale of our first phase of the project is 80.08MW, and the integrated development model of fishery and photovoltaic is adopted, which can provide an average of about 88 million kWh of clean electricity per year, save 26,000 tons of standard coal, and help Yixing City achieve the 'double carbon' goal. Yu Jian, project leader of Datang Jiangsu Power Generation Co., Ltd., said.
This kind of green fishery production model of "fishery and light complementation" of water power generation and underwater fish farming not only realizes the dual benefits of fishery and photovoltaic power generation, but also promotes the economic development of the village collective and drives the masses to increase their income steadily. "After the photovoltaic panels are shading, the water temperature drops by 2 degrees Celsius, which can not only have a shading effect, but also reduce the occurrence of fish diseases, and the income per mu of fish ponds is considerable. According to the relevant person in charge of the Agriculture and Rural Bureau of Yangxiang Town, the emergence of the breeding model under the photovoltaic panels has directly reduced the breeding cost of farmers, and the rent of the fish pond is borne by the photovoltaic enterprises, and the rent price of farmers has been reduced from the original 1,000 yuan/mu to the current 200 yuan/mu, and the introduction of high-quality shrimp and crab varieties, the average income of the fish pond per mu can reach 3,000 yuan. In addition, the cost of ecological transformation of fish ponds, which should have been borne by towns and villages, was also borne by photovoltaic enterprises, saving 3.4 million yuan in the cost of town and village transformation.
【Key Enterprise】Datang Overseas Investment Co., Ltd. and China Southern Power Grid Yunnan International Co., Ltd. signed a cooperation framework agreement to jointly promote the implementation of power projects in the Meilan region
On April 17, China Datang Group Overseas Investment Co., Ltd. and China Southern Power Grid Yunnan International Co., Ltd. signed a cooperation framework agreement in Kunming, Yunnan Province. Jia Bingjun, Director of the International Business Department of China Datang Group Corporation, Secretary of the Party Committee, Chairman and General Manager of Datang Overseas Investment Company, and Yang Yujian, Chairman of China Southern Power Grid Yunnan International Company, attended the ceremony and witnessed the signing ceremony.
Jia Bingjun pointed out that the signing of the agreement marks a new stage of cooperation between the two sides, with a more solid foundation for cooperation and a broader space for cooperation. During the meeting, Jia Bingjun gave a detailed introduction to the latest progress of Datang's power projects in the Meilan region, and said that Datang Overseas Investment Company, as a window for Datang Group to develop overseas business, has been committed to deepening the Meilan regional market and promoting the development of clean energy. China Southern Power Grid Yunnan International Co., Ltd. is a leading enterprise in the interconnection of power grids in the Meilan region, and he hopes that the two sides can rely on their respective superior resources to jointly promote the implementation of power projects in the Meilan region and open a new chapter of cooperation.
Yang Yujian welcomed the visit of Jia Bingjun and his entourage, and introduced in detail the recent development of Yunnan International Company in the Lancang-Mekong region and the latest progress of regional power grid interconnection. He said that Yunnan International Company and Datang Overseas Investment Company have their own advantages in their respective business fields, and the two sides have complementary development demands and broad prospects for cooperation, and hope to take this signing as an opportunity to carry out in-depth cooperation with Datang Overseas Investment Company in many fields.
【Key Enterprises】Three Gorges Water Conservancy: The cumulative power generation capacity completed in the first quarter increased by 189.52% year-on-year
On April 17, the Three Gorges Water Conservancy announced that in the first quarter of 2024, the hydropower stations under the company and its holding company will have a cumulative power generation capacity of 298.00 million kWh, an increase of 189.52% year-on-year, including 294.22 million kWh in Chongqing, an increase of 189.39% year-on-year, and 03.78 million kWh in Yunnan, where the Mangyahe secondary power station is located, an increase of 200% year-on-year. The hydropower stations of the Company's subsidiaries and holding companies have completed a total of 293.44 million kWh, an increase of 191.23% year-on-year, of which 289.67 million kWh in Chongqing, an increase of 191.13% year-on-year, and 03.77 million kWh in Yunnan, an increase of 199.21% year-on-year. Yubeishan Power Plant, Shuanghe Power Plant, Ganchang Power Plant, Changtan Power Plant, Yingdu Power Plant, Shuangquan Hydropower Station and Dahekou Hydropower Station are the company's own power plants without approved feed-in tariffs, and the average on-grid power generation price of other power stations is 0.3292 yuan/kWh (excluding tax).
As the first equipment manufacturing group unit in China to accept the special action inspection of the three ministries and commissions, Harbin Electric Power Group accepted the inspection team of the special action inspection team of the National Nuclear Safety Administration and the National Energy Administration for the special action of nuclear safety management of civil nuclear safety equipment
On April 17, Harbin Electric Power Group, as the first equipment manufacturing group unit in China to accept the special action inspection of three ministries and commissions, accepted the inspection team of the special action inspection team of the National Nuclear Safety Administration and the National Energy Administration for the special action of nuclear safety management of civil nuclear safety equipment, which lasted for two days. Huang Wei, general manager and deputy secretary of the party committee of Harbin Electric Group, and Lv Zhiqiang, deputy secretary of the party committee and director, attended the inspection meeting.
Huang Wei said that Harbin Electric Power Group keeps in mind the "great power of the country", deeply practices the national nuclear safety concept from the perspective of safeguarding national security, earnestly shoulders the responsibility of nuclear safety, and implements the concept of "respecting nuclear safety and guarding nuclear safety" in all aspects of nuclear power equipment design, manufacturing, inspection and delivery; The blade is inward, treating both the symptoms and the root causes, further enhancing the awareness of nuclear safety, and effectively implementing the fundamental policy of "safety first, quality first" into all aspects of rectification and reform.
Li Zhiguo, director of the Department of Nuclear Facility Safety Supervision of the National Nuclear Safety Administration, stressed that it is necessary to earnestly assume the political responsibility for national security, soberly understand the potential risks in nuclear equipment activities, deeply solve the outstanding problems exposed in the work, deeply understand the new requirements of nuclear safety supervision, conscientiously implement the nuclear safety responsibilities of party committees at all levels, give full play to the role of experience feedback, and jointly ensure nuclear safety.
At the meeting, the Department of Safety, Environmental Protection and Quality and the nuclear safety equipment manufacturing enterprises affiliated to the group company reported to the inspection team on the nuclear power industry and the development of special actions.
Chen Dongshi, vice president of Harbin Electric Co., Ltd., responsible comrades of relevant departments of the headquarters and related enterprises participated in the special inspection.
【Key Project】Leshan Electric Power signed a cooperation agreement with Jianengjia Electric Power
On April 18, Leshan Electric Power Co., Ltd. and Sichuan Jianengjia Electric Power Group Co., Ltd. signed the "Cooperation Intent Agreement" on industrial cooperation and development cooperation between the two sides in line with the principle of mutual benefit and equal consultation. The company is a related party with Sichuan Jianengjia Power Group Co., Ltd.
Leshan Electric Power Co., Ltd. is the first joint-stock electric power enterprise in China established on March 8, 1988. On April 26, 1993, Leshan Electric Power shares were listed on the Shanghai Stock Exchange. The company now has 6 branches, branches and 9 holding subsidiaries, spanning electricity, natural gas, tap water, sewage treatment, hotel services, photovoltaic new energy and other fields.
【Key Project】The key technology of the Shuangjiang Estuary of Dadu River solves the problem of complex geological grouting problems
On April 18, the National Energy Group Dadu River Company applied the key technology of dam foundation (foundation) grouting under complex geological conditions in the construction of Shuangjiangkou Hydropower Station Project, solved the complex geological grouting problem, and played an important role in ensuring the quality of grouting construction, improving the efficiency of grouting construction, and enhancing the image of civilized construction, which was widely recognized by the industry.
Shuangjiangkou Hydropower Station is located at the junction of Malkang City and Jinchuan County, Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province, with a total installed capacity of 2 million kilowatts. The barrage dam adopts the earth-mass core wall rockfill dam, with a maximum dam height of 315 meters and a filling volume of more than 45 million square meters, which is the world's highest dam under construction.
In view of the above problems, Dadu Shuangjiangkou Company has carried out in-depth research on basic theories, key technologies and complete sets of equipment, and has made every effort to overcome the fine modeling and visualization of fractured dam foundation (foundation) under complex geological conditions, fine numerical simulation of rock mass grouting parameters, Key technical problems such as intelligent prediction of dam foundation grouting have built a complete set of technology and whole-process automatic control system for dam foundation intelligent grouting for large-scale hydropower projects, created a new intelligent grouting management model, and greatly improved the basic theory and practical application level of dam foundation intelligent grouting foundation. The research results of this project have been successfully practiced in the construction of the Shuangjiangkou Hydropower Station of Dadu River, which has effectively improved the quality and efficiency of dam foundation grouting under complex geological conditions.
【Key Project】Dalian Heavy Industry's large-scale high-end wind power core components intelligent manufacturing project was put into operation
On April 18, Dalian Heavy Industry's large-scale high-end wind power core components intelligent manufacturing project was completed and put into operation in Wafangdian, Dalian. According to reports, the project is undertaken by the Northeast Company of China Construction Eighth Bureau, with a new plant area of 218,900 square meters, the foundation will be laid on May 24, 2023, and the first casting will be completed on December 28, and the main project construction period will be less than 7 months, realizing the construction and production of the same year.
Yang Zhongyi, project manager of intelligent manufacturing of large-scale high-end wind power core components of Dalian Heavy Industry, introduced that during the peak period of the project, there were more than 2,000 construction personnel and more than 500 mechanical vehicles per day, and it took only 28 days to complete 1.4 million cubic meters of earth and stone excavation, 109 days to complete 250,000 cubic meters of concrete pouring, 67 days to complete 44,000 tons of steel structure hoisting, 59 days to complete the installation of 220,000 square meters of wall panels, and 150 days to complete the installation and commissioning of 368 sets of equipment. The general contractor, China Construction Eighth Bureau, has set the fastest construction speed of similar projects in the industry with excellent project control and quality control capabilities.
Sun Fujun, general manager of the foundry company under Dalian Heavy Industry Equipment Group, introduced that during the construction, the project team used the advantages of BIM visualization to intuitively complete the drawings and solve the problem of large-span steel structure hoisting under complex working conditions caused by the influence of large-volume equipment foundation, comprehensively considering the interspersed construction of lifting and civil engineering, and completed the installation of the steel structure with a maximum span of 42 meters under the normal construction of the equipment foundation, and completed the installation of 300 meters of high-precision track, with an elevation deviation of 3 mm in the full length range to ensure the normal operation of the process RGV system.
"The project is an innovative demonstration practice for the development of new quality productivity to high-end intelligent green transformation, and a benchmark project for the 'smart green' transformation of China's foundry industry, which will become a banner of Dalian equipment manufacturing industry after it is put into operation, and is of great significance to stimulate the local economy, promote employment, help the revitalization of Northeast China, and promote the application and development of green energy in the mainland. Wang Dongsheng, executive vice president and secretary general of the China Foundry Association, said.
【Key Enterprise】Guangxi Nanning Company signed a strategic cooperation agreement with Nanning Jiaotou Energy Development Company
On April 19, Nanning Company signed a strategic cooperation agreement with Nanning Trading Investment Energy Development Co., Ltd., and Zhang Hui, Secretary of the Party Committee and Chairman of Nanning Company, and Liu Yong, Chairman of Nanning Trading Energy, signed the agreement on behalf of both parties.
The agreement stipulates that Nanning Company and Jiaotou Energy will work together in the fields of wind power, photovoltaic, energy storage, charging piles and supporting facilities, area energy supply, and power trading. The two sides will adhere to resource sharing, strengthen complementary advantages, innovate cooperation models, improve the level of cooperation, accelerate the implementation of projects, promote mutual benefit and win-win results, and contribute energy strength to promote the high-quality economic and social development of Nanning.
【Key Enterprise】Mainland high-power offshore wind power has added a new member
On April 20, the first prototype of an 18 MW semi-direct-drive high-power offshore wind turbine developed by Dongfang Electric Wind Power Co., Ltd. with completely independent intellectual property rights rolled off the assembly line and shipped in Fuqing City, Fujian Province.
The 18 MW semi-direct-drive offshore wind turbine is a unit launched by Dongfang Wind Power in response to the demand for offshore parity and bidding, which can reduce the number of wind farm slots and the cost of operation and maintenance and hoisting, greatly reduce the cost of wind farm construction, and bring better economic benefits to the owner.
With a wind turbine diameter of 260 meters, a single unit can output 72 million kWh of clean electricity per year, save more than 22,000 tons of standard coal and reduce carbon dioxide emissions by more than 59,000 tons, which has significant energy conservation and emission reduction results.
The successful launch of the 18 MW semi-direct-drive high-power offshore wind turbine is another vivid practice of the mainland's efforts to achieve high-level scientific and technological self-reliance and self-reliance, ensure national energy security, and promote green and low-carbon transformation. Looking back on history, Dongfang Electric's first 5 MW offshore wind turbine was fully launched in 2013, and the first 10 MW offshore wind turbine in Asia was launched in 2019, bringing China's wind power into the "double-digit" era, the first 13 MW offshore wind turbine in Asia was successfully developed in 2022, the new generation of 18 MW offshore direct drive wind turbine was successfully rolled off the assembly line in 2023, and the first prototype of the 18 MW semi-direct drive high-power offshore wind turbine was rolled off the assembly line in 2024. Dongfang Electric's 10 MW, 13 MW and 18 MW offshore wind turbines were all born in Fujian, and the Fujian million-kilowatt offshore wind turbine production base has also become the main position of Dongfang Electric to implement the "two seas" (marine and overseas) strategy and a new engine to help the high-quality development of local economy and society.
【Key Project】The first unit of Shaanxi Hanjiwei Golden Gorge Hydropower Station completed 72 hours of trial operation
On April 21, the first unit of the Hanjiwei Golden Gorge Hydropower Station completed 72 hours of trial operation and was officially put into operation for power generation. During the trial operation, the equipment of the unit operated well, and the bearing watt temperature, oil temperature, vibration and swing values of each part of the unit were within the standard range, which laid a solid foundation for the long-term stable operation of the unit. This marks the completion of the first phase of the water diversion project from Han to Wei, and has entered a new stage of operation and management.
The Golden Gorge Water Conservancy Project is the leader of the Han-Ji-Wei Water Diversion Project, located in the Golden Gorge in Yangxian County, Hanzhong City, the main stream of the Han River, and the project has the benefits of water supply, power generation and flood control. The barrage is a concrete gravity dam with a maximum dam height of 63 meters, a total storage capacity of 221 million cubic meters, and 7 pumping units at the pumping station behind the dam, with a total installed capacity of 126,000 kilowatts and an annual water supply capacity of 1 billion cubic meters. Three 45,000 kW hydro-generator units are installed at the dam power station, with a total installed capacity of 135,000 kW and an average annual power generation of 351 million kWh. It is estimated that after the full power generation of the Golden Gorge Power Station, it can meet the normal electricity demand of 88,700 households with an annual electricity consumption of 4,000 kWh, save about 43,000 tons of standard coal and reduce carbon dioxide emissions by about 65,000 tons per year.
In September 2015, the construction of the Golden Gorge Water Conservancy Project began. On December 20, 2018, the first warehouse of the Golden Gorge Water Conservancy Hub was concreted. On November 12, 2020, the Han River was successfully intercepted. On July 9, 2023, the Golden Gorge Water Conservancy Hub was officially opened to store water. At present, while the first unit generates electricity, the remaining two hydro-generator units are being connected to the grid for commissioning as planned.
【Key Enterprise】The power generation capacity of Qinghai Company of National Energy Group exceeded 500 million kWh
As of April 21, Haixi Company's annual power generation capacity reached 502,495,600 kWh, exceeding the 500 million kWh mark, laying a solid foundation for all-green power production, laying a solid foundation for completing the annual power generation task, and continuously supplying green electricity.
The company thoroughly implements the "136" development strategy and the overall work policy of "41663" of the group company, closely follows the annual power generation target, continues the spirit of battle, takes the initiative to jump up and touch the height, adheres to high standards, practical measures, hard assessment, and good results, adheres to the working principle of "electricity must be competed, electricity must be rushed", scientifically adjusts the operating parameters, and ensures that the AGC system is pressed into operation. Strengthen power marketing, accurately grasp the changing trend of the power market, always pay attention to the changes in the load of the power grid, actively communicate with the power grid dispatching department, and carry out scientific marketing and precision marketing. At the same time, the company thoroughly implemented the spirit of the group company's power industry production and operation work briefing, comprehensively carried out production and operation to improve quality and efficiency, optimized specific measures to grab power generation, and strengthened the management of shortage elimination in the field, with a 100% elimination rate of equipment defects. In addition, the company thoroughly implements the safety production policy, compacts the responsibility for safe production, continues to carry out management improvement, and earnestly does a good job in hidden danger investigation and risk pre-control, so as to ensure that safety is controllable and under control, and all of them are to achieve safe production.
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