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秋检护航电网安全:电力人的攻坚时刻
Zhong Guo Jing Ji Wang· 2025-11-24 05:02
在更换过程中,检修人员需要先拆除旧设备,然后再安装新设备并进行调试和试验,每一个步骤都 需要精心操作,确保万无一失。检修人员仔细研究设备图纸,严格按照操作规程进行拆卸安装。 "设备安装精度要求很高,任何一点偏差都可能影响设备的正常运行,我们一定要确保安装到 位。"一位经验丰富的老师傅对旁边的同事说道。新设备投用后,将大大提高变电站的安全运行水平, 为电网的安全稳定运行提供有力保障。 220千伏大竹林变电站是市北电网重要枢纽,本阶段改造将持续一个月左右,整体工程将于年底前 完成,改造范围包括气动机构断路器、刀闸、互感器更换,防腐处理,改造后将大幅提升设备稳定运行 可靠性,增强电网迎峰度冬的能力。 跋山涉水保障"大动脉"畅通 深秋时节,寒意渐浓,城市与乡村的灯火依旧温暖明亮。然而,在两江大地,一场电网"秋检"的战 役正在紧张而有序地进行。变电站内、铁塔之下、线路旁边,到处都活跃着电力人忙碌的身影,他们用 专业与责任,为电网安全筑起一道坚实的防线。 精密手术强健电网"关节" 清晨,第一缕阳光还未完全驱散晨雾,220千伏大竹林变电站内已是一片忙碌景象。检修人员手持 各种专业工具,紧张地忙碌着。断路器更换是当前的重点工 ...
A股近日大幅震荡原因,前景如何?|资本市场
清华金融评论· 2025-11-12 12:13
Group 1 - The recent significant adjustments in A-shares are attributed to large funds rebalancing their portfolios, with the Shanghai Composite Index consolidating around the 4000-point mark, indicating potential upward momentum in the future [3][4]. - Data shows that by Q3 2025, large funds increased their positions in the pan-technology sector by over 10%, reaching nearly 40%, a historical high that is unsustainable, prompting a necessary rebalancing [5]. - Historical trends indicate that large funds have previously "herded" into sectors, such as bank stocks in 2009, which were considered growth stocks due to rapid economic expansion [5]. Group 2 - The "anti-involution" stocks and resource stocks (such as precious metals) are highlighted as sectors that have not been discredited, with the Chinese government's focus on high-quality development supporting this trend [7]. - Precious metals like gold are expected to benefit from a weakening dollar and increased demand due to geopolitical risks, while copper is seen as essential for green transformation, with demand surging from sectors like AI and electric vehicles [7][8]. - Aluminum demand is also projected to rise due to its applications in lightweighting for electric vehicles and solar energy, with supply constraints leading to a bullish outlook on prices [7][8]. Group 3 - Recent economic data, particularly the positive CPI figures, have raised expectations for economic recovery, leading to a rebound in some consumer stocks [10]. - The long-term investment perspective emphasizes the importance of patience, as short-term market movements are often driven by emotions rather than fundamentals [10].
国网北京电力完成京北四区电网灾后重建
Zhong Guo Dian Li Bao· 2025-11-05 06:06
Core Insights - The State Grid Beijing Electric Power Company has completed the post-disaster reconstruction of 63 damaged 10 kV lines in the northern four districts of Beijing after over two months of efforts [1][2] - A rare heavy rainfall lasting 147 hours from July 23 to 29 caused significant damage to power facilities in the northern mountainous areas of Beijing, prompting a rapid restoration of power supply to all affected administrative villages and inhabited natural villages within nine days [1] - The company initiated a "100-day battle" for post-disaster reconstruction, focusing on enhancing the resilience of power equipment against extreme weather [1] Group 1 - The reconstruction project involved 30 engineering tasks related to the power grid, specifically addressing 63 damaged 10 kV distribution lines [2] - As of the end of October, all 63 damaged lines have been restored, with 24 lines simultaneously upgraded for flood resistance [2] Group 2 - New construction standards were developed for the reconstruction, emphasizing the use of high-strength materials and deeper foundations to improve resistance to water flow and flood impacts [1] - In Huairou District, new steel pipe poles with a foundation diameter of 1.8 meters and a depth of 12.2 meters were installed to withstand severe flooding [1] - Emergency power connection devices were installed on new lines in Miyun District to enable rapid deployment of backup power in case of faults [1]
上海能源:以220kv系统与国网联络、以110kv系统作为主供电网络、以35kv系统作为配网或辅网
Core Viewpoint - The company has upgraded its power grid to enhance safety, reliability, and economic efficiency in electricity supply [1] Group 1 - The upgraded power grid connects to the national grid through a 220kV system [1] - The main power supply network operates on a 110kV system [1] - A 35kV system is utilized for distribution or auxiliary networks [1]
我国在建和年内计划开工的能源重点项目上半年完成投资额同比增长21.6%
Ren Min Wang· 2025-08-12 06:10
Core Insights - The total investment in key energy projects in China for the first half of the year exceeded 1.5 trillion yuan, marking a year-on-year increase of 21.6% [1] - Investment in renewable energy generation continues to grow rapidly, with significant increases in onshore wind and solar power investments [1] - Private enterprises are showing a notable increase in investment within the energy sector, particularly in distributed solar and onshore wind projects [1] Investment Growth - Investment in key energy projects reached over 1.5 trillion yuan, with growth rates exceeding 20% across eastern, central, and western regions [1] - New energy investment is increasingly focused on green and innovative projects [1] Renewable Energy Investment - Onshore wind investment in Guangxi and Xinjiang doubled compared to the same period last year [1] - Centralized solar power investment grew by 24.5%, while distributed solar power investment surged by over 70% [1] - Investment in solar thermal power nearly doubled year-on-year [1] Power Supply Investment - Investments in coal and nuclear power sectors maintained rapid growth, with key coal power projects in East China, Central China, and Western Inner Mongolia being completed [1] - Investments in power grids and pumped storage also showed steady growth [1] Emerging Energy Investments - Investment in hydrogen energy projects doubled, with multiple green hydrogen projects in Jilin accelerating [1] - Investment in charging and swapping infrastructure increased by nearly 70% [1] - New energy storage and integrated source-grid-load-storage projects saw investment growth exceeding 30% [1] Private Sector Investment - Private enterprises' investment in the energy sector grew by 27.8% year-on-year [1] - Investments in distributed solar and onshore wind projects by private companies increased by over 40% [1] - Investment in charging and swapping infrastructure and centralized solar projects by private enterprises grew by approximately 15% [1]
在建和年内计划开工的能源重点项目上半年完成投资额超1.5万亿元
Core Viewpoint - The National Energy Administration reported significant growth in energy infrastructure investment in China during the first half of the year, with a total investment exceeding 1.5 trillion yuan, marking a year-on-year increase of 21.6% [1] Investment in Energy Infrastructure - Investment in key energy projects under construction and planned for this year surpassed 1.5 trillion yuan, with growth rates exceeding 20% in eastern, central, and western regions [1] - Private enterprise investment continues to grow rapidly, with new energy investments increasingly focusing on green and innovative projects [1] Renewable Energy Investment - Investment in renewable energy generation has seen rapid growth, with land-based wind power investments in Guangxi and Xinjiang doubling compared to the same period last year [1] - Offshore wind power investments in Guangdong, Fujian, and Shanghai have been significantly released [1] - Centralized photovoltaic investments increased by 24.5% year-on-year, while distributed photovoltaic investments grew by over 70%, particularly in the eastern and central regions [1] - Investment in solar thermal power nearly doubled compared to the previous year [1] Power Supply Security Investment - Investment in coal and nuclear power sectors has maintained rapid growth, with key coal power projects in East China, Central China, and Inner Mongolia being completed to ensure summer power supply [1] - Investments in power grids and pumped storage have steadily increased, with over 160 key summer power supply grid projects completed on schedule [1] - Multiple ultra-high voltage direct current projects have been put into operation, and the Sichuan Panzhixi power grid optimization project has been fully completed [1] - Inter-provincial connection projects in North China, East China, Northwest, and Northeast regions are accelerating their preliminary work [1]
一张网,何以托起千钧重?
Core Viewpoint - The article emphasizes the critical role of electricity and the power grid in supporting economic development and enhancing the quality of life in Zhejiang, highlighting the evolution and resilience of the power grid over the past two decades [2][11][21]. Group 1: Historical Context and Importance of Electricity - Twenty years ago, the phrase "electricity is of utmost importance, and the power grid is the lifeline" was introduced, which has since become a guiding principle for the development of Zhejiang's power infrastructure [2]. - The dependency on electricity has increased significantly, with a hypothetical scenario illustrating the chaos that would ensue from a week without power, affecting transportation, healthcare, and daily life [5][11]. - The historical significance of electricity is underscored, tracing its evolution from the Second Industrial Revolution to its current status as a vital component of modern life [4][11]. Group 2: Growth and Development of the Power Grid - Zhejiang's total electricity consumption has surged from 165.7 billion kWh in 2005 to 678 billion kWh in 2024, marking a fourfold increase, with peak load rising from 25.4 million kW to 126 million kW, a fivefold increase [11]. - The power grid has transitioned from a sparse network to a robust system, with the establishment of a high-voltage backbone network and the integration of clean energy sources [21][24]. - The construction of the world's largest cross-sea interconnected power transmission project and other significant technological advancements demonstrate the grid's capacity to support economic growth [15][21]. Group 3: Economic and Social Impact - The power supply is crucial for industrial development, with industrial electricity consumption rising from 129.1 billion kWh to 443.5 billion kWh over the past 20 years, reflecting the shift towards advanced manufacturing and digital economy [14][11]. - Reliable electricity is directly linked to the quality of life for 66 million residents in Zhejiang, with per capita electricity consumption 1.5 times the national average, indicating a strong correlation between power supply and social well-being [19][11]. - The power grid's development has facilitated the realization of common prosperity, ensuring equitable access to electricity across urban and rural areas [25][21]. Group 4: Future Directions and Challenges - The future of Zhejiang's power grid involves enhancing the high-voltage backbone network and improving the capacity to integrate external clean energy sources [24][26]. - Upgrading the distribution network to accommodate new energy demands and improve resilience against natural disasters is a priority [26]. - The integration of digital technologies and artificial intelligence into the power grid is essential for meeting future energy needs and enhancing service delivery [28][21].
国家能源局: 上半年东中西部能源重点项目完成投资额同比增速均超20%
Xin Hua Cai Jing· 2025-07-31 08:30
Core Insights - In the first half of the year, China's energy infrastructure construction maintained a strong momentum, with investments in key energy projects exceeding 1.5 trillion yuan, a year-on-year increase of 21.6% [1][2] Investment Trends - Investment in renewable energy generation continued to grow rapidly, with land-based wind power investments in Guangxi and Xinjiang doubling compared to the same period last year, and concentrated solar power investments increasing by 24.5% year-on-year [1][2] - The investment in electricity supply security expanded, with significant growth in coal and nuclear power investments, and over 160 key power grid projects completed on schedule [2] - Investment in new energy business formats accelerated, with hydrogen energy project investments doubling and charging infrastructure investments increasing by nearly 70% [2] - Private enterprises in the energy sector saw a year-on-year investment increase of 27.8%, with significant growth in distributed solar and land-based wind power investments [2]
美国能源部:电网(规模)增速必须与人工智能(AI)市场的发展相适应。
news flash· 2025-07-07 18:42
Core Viewpoint - The U.S. Department of Energy emphasizes that the growth of the electric grid must keep pace with the development of the artificial intelligence (AI) market [1] Group 1 - The electric grid's expansion is critical to support the increasing demands of AI technologies [1] - There is a need for strategic planning to ensure that infrastructure can accommodate future AI advancements [1] - The integration of AI into various sectors necessitates a robust and scalable energy supply [1]
美国能源部长赖特:天然气、核能和煤炭是美国电网未来的关键。
news flash· 2025-06-27 12:28
Core Viewpoint - The U.S. Secretary of Energy, Jennifer Granholm, emphasizes that natural gas, nuclear energy, and coal will be critical for the future of the U.S. power grid [1] Group 1: Energy Sources - Natural gas is highlighted as a key component for maintaining energy reliability and supporting the transition to renewable energy [1] - Nuclear energy is recognized for its role in providing a stable and low-carbon energy source [1] - Coal, despite its declining use, is still considered important for energy security in certain regions [1]