特高压输电
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新华全媒+ | 2260公里跨越5省份 0.007秒“疆电”点亮山城
Xin Hua She· 2025-06-10 08:26
Core Points - The "Xinjiang Power to Chongqing" project is China's first ultra-high voltage direct current transmission line connecting the northwest and southwest regions, enabling efficient electricity transfer over a distance of 2260 kilometers [1][3] - The project has a total investment of approximately 28.6 billion yuan and is expected to deliver over 36 billion kilowatt-hours of electricity annually, with more than half coming from renewable sources [1][3] - The project is part of a broader strategy to enhance energy resource allocation in China, particularly addressing the energy supply and carbon reduction pressures faced by eastern and central provinces [3][4] Investment and Economic Impact - The project is expected to significantly lower electricity costs for data centers in Chongqing, which have a growing demand for green electricity [2] - The renewable energy capacity associated with the project includes 10.2 million kilowatts from wind, solar, and thermal sources, accounting for over 70% of the total installed capacity [1][3] - The project will help reduce coal consumption by approximately 6 million tons and decrease carbon dioxide emissions by about 16 million tons annually [1] Technological Advancements - The core equipment at the converter stations has been domestically produced, enhancing the stability and efficiency of renewable energy transmission [2] - The converter stations utilize advanced technology, including second-generation synchronous condensers, which have world-leading performance in key parameters [2] - The project includes customized designs for transmission towers to withstand high wind speeds, ensuring structural integrity and reliability [3] Renewable Energy Potential - Xinjiang has significant renewable energy resources, with a technical potential of 780 million kilowatts for wind energy and 1.6 trillion kilowatt-hours for solar energy [3] - The project exemplifies the potential for Xinjiang to become a national energy resource hub, addressing the mismatch between energy production and consumption in different regions [3][4] - The time difference between Xinjiang and central/eastern regions allows for effective utilization of solar energy, supporting national energy supply during peak demand periods [4]
“疆电入渝”工程今日投产送电 新疆为什么送出的是直流电?
Yang Shi Xin Wen· 2025-06-10 07:39
Core Points - The "Jiang Dian Ru Yu" project, part of China's 14th Five-Year Plan, has commenced power transmission, connecting five provinces and regions with a total length of 2260 kilometers [1][3] - The project utilizes over 70% of renewable energy sources from a total installed capacity of 14.2 million kilowatts [1] - The construction of this high-voltage transmission line took less than two years, setting a record for the fastest completion of a transmission line over 2000 kilometers in China [3] Infrastructure and Technology - The project faced significant challenges due to complex terrain, including snow-capped mountains and deserts, with construction temperatures in Xinjiang dropping to -30 degrees Celsius [4] - To ensure safety in high-wind areas, the transmission towers were reinforced based on scientific measurements of wind speeds [6] - The Chongqing converter station, which is the first of its kind in Southwest China, covers an area equivalent to 40 soccer fields and involved extensive earth-moving operations [14] Environmental Impact - The project is expected to deliver 36 billion kilowatt-hours of electricity annually to Chongqing, with at least 50% coming from clean energy sources, resulting in a reduction of 16.5 million tons of CO2 emissions each year [9] - The clean energy delivered is equivalent to planting 900 million trees in terms of carbon absorption [9] Economic Significance - The "Jiang Dian Ru Yu" project enhances the energy structure of Chongqing, providing enough electricity for 10 million households or the production of 5 million new energy vehicles annually [23] - This initiative strengthens the economic ties between Xinjiang, a major energy base, and Chongqing, an important industrial hub, facilitating a mutually beneficial relationship [21][23] Power Transmission Efficiency - The electricity from Xinjiang reaches Chongqing in just 7 milliseconds, significantly improving the cross-regional consumption of clean energy [10][11] - The project employs high-voltage direct current (HVDC) technology to minimize transmission losses, making it an efficient solution for long-distance power delivery [24]
新型电力系统专家访谈
2025-06-09 15:30
Summary of Key Points from Conference Call Records Industry Overview - The conference call primarily discusses the **new energy sector**, focusing on wind and solar power installations and market dynamics in China. Core Insights and Arguments 1. **Projected Installations for 2025**: It is expected that new wind and solar installations will reach approximately **300 GW**, with **200 GW** from solar and **80-90 GW** from wind. The mechanism electricity ratio is projected to be around **50%** [3][4][6]. 2. **Investment Expectations**: Despite a decrease from **370 GW** in 2024 to **300 GW** in 2025, the investment outlook remains stable for both existing and new projects due to the anticipated increase in industrial and commercial electricity consumption [3][4][6]. 3. **Market Risks Post-2026**: After 2026, the scale of centralized electricity generation is expected to shrink, leading to increased competition and potential downward pressure on mechanism electricity prices. This could result in a significant reduction in new energy installations [4][8]. 4. **Internal Rate of Return (IRR) Decline**: New energy project electricity prices are expected to decrease by **3-5 cents**, leading to a **1.5-2 percentage point** drop in internal rates of return. The average IRR in the northern regions is around **6.5%**, while the central and eastern regions may stabilize around **7-8%** [5][6]. 5. **Grid Investment Surge**: The grid investment is projected to reach a record high, with an **8%** increase in the budget, totaling over **660 billion** yuan, reflecting a **10%** growth rate [1][18]. Additional Important Insights 1. **Electricity Supply and Demand Balance**: The electricity supply gap is expected to ease this summer, with an addition of **60 million kW** in capacity, leading to a generally balanced supply-demand situation [2][32]. 2. **Solar Installation Progress**: As of April 2025, solar installations reached approximately **100 GW**, with expectations to hit **140 GW** by the end of May. However, new installations may decline in the latter half of the year due to project completions [7][16]. 3. **Market Entry of New Energy**: The proportion of new energy entering the market is set to reach **100%** in 2025, with all projects required to participate in market transactions, albeit with a minimum guaranteed price [10][11]. 4. **Utilization Rates**: The utilization rates for solar and wind power are declining due to increased installation capacity. Solar utilization is expected to drop to around **90%**, while wind utilization remains relatively stable [14][15]. 5. **Future of High Voltage Transmission**: The development of high voltage transmission projects is optimistic, with plans for **11 new lines** in 2025, although challenges remain regarding project approvals and environmental assessments [22][24][25]. This summary encapsulates the critical points discussed in the conference call, providing insights into the current state and future outlook of the new energy sector in China.
天津南1000千伏特高压变电站扩建工程投入运行
news flash· 2025-06-04 12:52
Core Insights - The Tianjin South 1000 kV UHV substation expansion project, a key initiative under the national "14th Five-Year Plan," has commenced operations, enhancing the transmission capacity of clean energy from Inner Mongolia and Hebei to the Tianjin region [1] Group 1 - The project is expected to deliver over 40 billion kilowatt-hours of electricity annually, significantly boosting the energy supply to the Tianjin area [1] - This initiative supports the coordinated development of the Beijing-Tianjin-Hebei region by improving energy infrastructure [1]
【大国工程看新疆】一条“天路”联结西东 “闪送”疆电到千里之外
Zhong Guo Qing Nian Bao· 2025-05-19 13:55
中青报·中青网记者 宁迪 立夏后的新疆昌吉,气温已高达近35摄氏度。湛蓝的晴空下,车行进在新疆维吾尔自治区昌吉回族自治 州准东经济开发区,眼前出现了连片的银色高压铁塔。 5月15日,中青报·中青网记者参加"大国工程看新疆"主题采访活动时,走进国网新疆电力有限公司超高 压分公司昌吉换流站(以下简称"昌吉换流站")。这里是我国自主设计建设的首个±1100千伏特高压直 流输电工程——昌吉-古泉±1100千伏特高压直流输电工程(以下简称"吉泉直流工程")的源头,高耸矗 立的铁塔发出的电,正以0.01秒的极速,把电"闪送"给3293公里外的安徽宣城,相当于人眨眼的一瞬 间,电力已输送到安徽30次。6000多座特高压铁塔沿着新疆、甘肃、宁夏、陕西、河南、安徽六省 (区)建设,搭载高压线,架起了一条空中"电力天路"。 国网新疆 为什么新疆与千里之外的安徽"结缘"?记者了解到,新疆在全国能源资源开发中具有重要的战略地位, 煤炭资源总量、风能资源储量、太阳能年辐射总量均居全国前列。而华东地区经济发达,电力供需矛盾 突出、土地资源紧缺、大气环境压力巨大,迫切需要发展区外来电。 电力输送不比寻常,要24小时不间断输电,维持设备的安 ...
“宁电入湘”工程重要交流配套工程投运
Huan Qiu Wang· 2025-05-12 01:53
Core Viewpoint - The successful completion and operation of the 750 kV line project from Shapotou to Zhongning marks a significant milestone in the Ningxia to Hunan ±800 kV UHVDC transmission project, which is crucial for the country's energy development strategy [1][3]. Group 1: Project Overview - The Ningxia to Hunan ±800 kV UHVDC project is China's first high-voltage transmission line primarily designed to transport electricity from renewable energy bases located in desert and arid regions [3]. - The Shapotou to Zhongning converter station's 750 kV line is a key component that ensures the smooth commissioning of the converter station's AC system and serves as a core power transmission channel for future DC low-end power delivery [3]. Group 2: Construction Details - The construction of the Shapotou to Zhongning 750 kV line began on June 5, 2024, with a total length of 46.98 kilometers and the erection of 68 new towers, utilizing a mixed single and double circuit setup [5]. - The NG18 tower, reaching a height of 155.9 meters, set a new record for tower height in Ningxia's power construction history [5]. Group 3: Environmental and Operational Considerations - The project adheres to green construction principles, implementing environmental protection measures alongside construction to ensure ecological restoration, particularly in the fragile ecosystem at the edge of the Tengger Desert [5]. - The company plans to increase resource investment and enhance professional collaboration to expedite the construction of critical supporting projects, ensuring the timely operation of the Ningxia to Hunan ±800 kV UHVDC project [5].
远东股份斩获线缆合同大订单 机器人等产业新需求有望带来增量市场
Zheng Quan Ri Bao Wang· 2025-05-09 03:00
Group 1 - Far East Smart Energy Co., Ltd. (Far East) announced a total contract order amount of 2.646 billion yuan for April 2025, including a smart grid cable contract worth 138 million yuan from State Grid Corporation [1] - In Q1 2025, Far East achieved operating revenue of 4.874 billion yuan, a year-on-year increase of 1.3%, and a net profit attributable to shareholders of 46 million yuan, up 84.65% year-on-year [1] - The company aims to drive growth through innovation, focusing on smart cable networks, smart batteries, and smart airport sectors, with the new contracts expected to positively impact future performance [1] Group 2 - National grid investment in China reached 608.3 billion yuan in 2024, a year-on-year increase of 15.3%, with expectations for 2025 to exceed 650 billion yuan [2] - Other cable companies, such as Ningbo Orient Cable and Wanma Co., also reported significant contract wins, indicating a broader trend in the industry [2][3] - The core drivers of grid investment in 2025 include national policy support, the push towards carbon neutrality, and technological innovations in smart grids and high-voltage transmission [3] Group 3 - The cable industry is facing pressure, with 11 out of 38 listed companies reporting net profits below 10 million yuan in Q1 2025, indicating a need for transformation [4] - Traditional cable manufacturers are accelerating their smart transformation, while emerging tech companies are entering the smart cable integration and solution space [4] - Far East plans to focus on smart cable networks, smart batteries/storage, and smart airports, aiming for approximately 30 billion yuan in revenue and 600 million yuan in net profit in 2025 [4] Group 4 - The rapid development of artificial intelligence and robotics is creating new growth opportunities for the cable industry, particularly in high-performance specialty cables [5] - Companies with core technology barriers in ultra-high voltage and smart cables, specialized firms focusing on high-end product development, and globally competitive leaders are expected to gain market advantages [5]
内蒙古特高压电网外送电量突破7000亿千瓦时
news flash· 2025-04-21 09:38
内蒙古通过"五交三直"8条特高压输电通道,累计外送电量突破7000亿千瓦时,达到7006.86亿千瓦时, 相当于2.7亿户家庭1年用电量,就地转化超2.3亿吨标准煤,减排二氧化碳约6.9亿吨,环保效益和社会 效益显著。 ...
国网蒙东电力:今年力争再增新能源并网装机4000万千瓦
Zhong Guo Dian Li Bao· 2025-04-17 05:38
Core Insights - Inner Mongolia is a traditional energy region that is also rapidly developing as a new energy and green energy hub, with significant growth in renewable energy capacity and generation expected in 2024 [1] Group 1: Renewable Energy Development - In 2024, Inner Mongolia plans to add 41 million kilowatts of new installed renewable energy capacity, bringing the total to 135 million kilowatts, with an expected generation of 200 billion kilowatt-hours [1] - The region is implementing multiple new energy projects, including the second and third batches of large-scale renewable energy bases, which require expedited grid connection [1][3] Group 2: Infrastructure and Grid Connection - The construction of the Bayannaoer–Victory 500 kV transformer project is underway, which will enhance the transmission efficiency of clean energy and meet the demand for an additional 1 million kilowatts of wind power [2] - The first batch of large wind and solar base projects includes three major projects, all of which are operational, demonstrating rapid project execution [2][3] Group 3: Power Transmission and Delivery - As of March 23, 2024, the ±800 kV HVDC project from Xilingol to Taizhou has delivered over 11 billion kilowatt-hours, contributing to a cumulative delivery of 605.27 billion kilowatt-hours from Inner Mongolia [4] - The region has established eight HVDC transmission corridors to various provinces, facilitating a steady increase in power delivery [4] Group 4: Future Plans and Collaborations - A memorandum of cooperation was signed between State Grid Corporation and Inner Mongolia for the "Shagao Desert" base, accelerating the preliminary work for HVDC projects [5] - The company is committed to advancing the second round of HVDC development and expediting the approval and construction of multiple HVDC projects [6]
哈密至重庆±800千伏特高压直流输电工程将于5月建成投产
Zhong Guo Dian Li Bao· 2025-03-24 07:16
Core Insights - The Hami to Chongqing ±800 kV UHVDC transmission project is set to be completed and put into operation in May, significantly enhancing electricity supply from Xinjiang to Chongqing [1][2] Group 1: Project Overview - The project involves the construction of a high-voltage direct current transmission line that will transport over 36 billion kilowatt-hours of electricity annually from Xinjiang to Chongqing [2] - The project is expected to promote the sustainable development of the western region's economy and society by leveraging Xinjiang's energy resources [2] Group 2: Technological Innovation - The use of drones for high-altitude monitoring and inspection has significantly reduced labor costs and enhanced safety for workers in harsh weather conditions [2] - Drones have improved inspection efficiency, allowing for rapid completion of large-scale inspections compared to traditional methods, increasing efficiency several times over [2] Group 3: Inspection Process - The drone team successfully inspected 163 iron towers and a 97.61-kilometer section of the transmission line, identifying and documenting issues for necessary rectifications [2] - The integration of drone technology into the inspection process has provided critical data and insights for the project's quality assurance [2]