特高压输电技术
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我国或将成为全球,乃至人类历史上,第一个“电力王国”
Sou Hu Cai Jing· 2025-12-01 14:01
Core Insights - China's electricity generation reached approximately 9.85 trillion kilowatt-hours in 2023, surpassing the combined output of G7 countries and exceeding the total generation of the US and India [3] - The energy structure in China is undergoing significant transformation, with coal's share in power generation decreasing from 75% in 2007 to 44% in 2024, while clean energy sources are rapidly expanding [5][20] - The development of ultra-high voltage (UHV) transmission technology has been crucial for efficiently transporting electricity from resource-rich western regions to the demand-heavy eastern cities [7] Group 1: Electricity Generation and Consumption - In 2024, China's electricity generation is projected to approach 10 trillion kilowatt-hours, accounting for nearly one-third of the global total [1] - The industrial electricity consumption in China matches the total industrial electricity consumption of all OECD member countries [3] Group 2: Energy Structure and Transition - By 2024, non-fossil fuel power generation capacity has surpassed 60% of total installed capacity, with clean energy sources like wind and solar playing a significant role [5] - The installed capacity of clean energy has reached 1.41 billion kilowatts, marking a shift towards a diversified energy mix that includes coal, oil, gas, and nuclear [5] Group 3: Technological Advancements - China has built 42 UHV transmission lines by the end of 2024, creating a flexible and extensive energy network that connects energy sources to consumers across the country [7] - The country has made significant advancements in power generation technology, transitioning from learning from foreign technologies to developing its own leading-edge capabilities [11] Group 4: Electrification and Future Trends - In 2024, over 40% of passenger vehicles sold in China are expected to be electric, indicating a rapid shift towards electrification in transportation [15] - The new energy storage industry is growing rapidly, with a 130% year-on-year increase in installed capacity, primarily driven by lithium-ion batteries [16] - China is also making strides in hydrogen energy, with a clean hydrogen production capacity exceeding 120,000 tons in 2024, supported by a growing number of hydrogen refueling stations [18] Group 5: Global Impact and Responsibility - China's solar photovoltaic manufacturing has seen a 90% reduction in costs over the past decade, enabling many developing countries to access clean energy at affordable prices [20] - The commitment to electrifying rural areas has been fulfilled, with all citizens now having access to electricity, showcasing China's dedication to equitable energy distribution [22]
赋能可持续 | 内蒙古清洁能源产业协会会长张楠:融合国际经验与本土创新 共筑清洁能源转型新生态
Sou Hu Cai Jing· 2025-11-24 07:16
Core Insights - The fourth forum on sustainable development for listed companies highlighted the importance of building a competitive clean energy development path through consensus and system thinking [1][4] Group 1: Leadership and Ecosystem Coordination - The key leadership quality for activating and coordinating a large ecosystem is the ability to build consensus and create shared value among diverse stakeholders [3] - The role of a leader includes being a "translator" and "connector" to facilitate effective communication and collaboration among government, industry, academia, and financial institutions [3][4] Group 2: International Experience and Local Adaptation - Successful integration of international advanced concepts and technologies into local practices is crucial, emphasizing that while technology can be imported, business models must be localized [5] - The "system optimization" concept has proven effective in Inner Mongolia, focusing on maximizing the efficiency of the entire energy system rather than individual equipment [5][6] Group 3: China's Competitive Advantages in Clean Energy - China possesses a complete and cost-competitive photovoltaic manufacturing supply chain, along with advanced ultra-high voltage transmission technology, which addresses the global challenge of clean energy transmission [6] - The exploration of large-scale "photovoltaic+" applications demonstrates China's unique advantages in combining energy projects with ecological restoration and industrial collaboration [6][7]
构建新型电力系统 推进绿色低碳转型——中国国家电网公司在COP30“中国角”举办主题边会
Xin Hua Cai Jing· 2025-11-15 07:19
Core Points - The China State Grid Corporation showcased its efforts in addressing climate change and promoting green low-carbon transformation at the COP30 conference, providing a model for energy transition for other countries [1][2] - China has become one of the fastest countries in reducing energy intensity, supporting over 6% economic growth with an average energy consumption growth rate of 3.4% [2] - The conference highlighted the importance of international cooperation and the establishment of unified international carbon accounting standards to support global climate governance [4] Group 1: Company Initiatives - The State Grid Corporation aims to empower better living and drive the energy revolution, collaborating with other countries to build a clean, low-carbon, safe, and efficient energy system [2][3] - The company, along with 51 other organizations, launched the "Global Time Zone Electric Carbon Factor Brazil Initiative" to promote research and practical application of electric carbon factors [3] Group 2: Industry Developments - The conference featured discussions on clean energy policies, new power system construction, and carbon business system development, emphasizing the need for precise carbon accounting methods [3][4] - The event showcased several reports and achievements, including the "State Grid Corporation Service New Energy Development Report" and the "State Grid Corporation Carbon Business System Construction Case Collection" [4]
全球陷入“电荒”,中国历史性的机会来了
Sou Hu Cai Jing· 2025-11-08 16:58
Core Insights - A global electricity crisis is emerging, presenting significant investment opportunities for China, particularly in the electricity industry chain exports [1] - The crisis is driven by aging power grids and increasing demand from energy-intensive industries like AI, leading to soaring electricity prices and rolling blackouts in various regions [5][4] - China's electricity structure remains robust, with record-high power generation and capacity, positioning it well to capitalize on the global demand for electricity [6][10] Group 1: Global Electricity Crisis - The electricity crisis is characterized by unprecedented power shortages in Europe, with prices exceeding 400 euros per megawatt-hour [5][4] - In the U.S., states like Texas have faced near-collapse of their power grids, leading to rolling blackouts [2] - The average outage time in European grids is projected to increase by 150% by 2025 [4] Group 2: Demand and Supply Dynamics - The demand for electricity is surging, particularly due to AI technologies, with predictions that AI data centers will increase global electricity demand by 175% by 2030 [5] - Aging infrastructure is unable to meet the rising demand, with over 70% of U.S. transformers exceeding 25 years of service [5] - China's power generation is projected to exceed 10 trillion kilowatt-hours in 2024, accounting for nearly 30% of global generation [6] Group 3: China's Competitive Advantage - China has developed advanced transmission technologies, such as ultra-high voltage transmission, enabling efficient energy transfer from renewable sources [10] - The country leads in energy storage capacity, with over 40% of global installations, enhancing its ability to manage supply and demand [10] - Major projects like the Yarlung Tsangpo River hydropower development and the artificial sun project are set to bolster China's energy infrastructure and future capabilities [13][14] Group 4: Export Opportunities - China's electricity equipment exports are on the rise, with a projected value of $29.59 billion in 2024, marking a 15.4% increase [15] - The country is also expanding its influence by constructing entire power plants and grid systems in countries like the Philippines and Brazil [16] - The global electricity crisis is seen as a profound opportunity for China to export not just equipment but comprehensive energy solutions [17]
乌克兰撑不住了?特朗普不想管,欧盟只有口头支票?欧洲国家开始清醒,拥抱俄罗斯才能双赢
Sou Hu Cai Jing· 2025-11-06 11:15
Group 1 - The core issue for Ukraine is the urgent need for energy and air defense systems to survive the winter, which is critical for the nation's existence [1] - European leaders, including Ursula von der Leyen, have made vague promises of "emergency energy assistance" and "ongoing financial support" without specifying the amounts or logistics for delivery [1] - Ukraine faces significant challenges in energy supply, relying on high-cost imports from the U.S. and struggling with transportation bottlenecks, leading to substantial losses during transit [1] Group 2 - Neighboring countries like Hungary and Romania are unwilling to provide support, citing their own supply issues, while Poland's capacity is insufficient to meet Ukraine's needs [3] - The U.S. political landscape is shifting, with former President Trump downplaying the conflict and focusing on China, indicating a strategic pivot away from Ukraine [3][5] - The U.S. recognizes its loss in the rare earth sector to China and is now prioritizing advanced technology sectors over traditional industries, suggesting a diminished focus on Ukraine [5] Group 3 - European nations are beginning to realize the economic repercussions of their support for Ukraine, facing high energy costs and industrial decline as a result of sanctions against Russia [5][6] - There is a growing internal dissent within Europe regarding continued support for Ukraine, as countries like Slovakia and the Czech Republic reconsider their positions [5] - The relationship dynamics among the U.S., Europe, and Russia are shifting, with calls for Europe to assert its own interests rather than acting as a pawn in U.S. strategies [8]
专访李琼慧:“十五五”能源转型迎两大机遇,零碳园区与市场化
2 1 Shi Ji Jing Ji Bao Dao· 2025-10-28 09:47
Core Insights - The article emphasizes the importance of accelerating the construction of a new energy system in China, focusing on increasing the share of renewable energy and ensuring a reliable transition from fossil fuels to a new power system [1][3]. Group 1: New Energy System Development - The "15th Five-Year Plan" aims to establish a new energy system with non-fossil energy as the main supply, supported by fossil energy as a backup, and a new power system as a key support [3][5]. - By 2025, the focus will be on implementing a new energy security strategy and enhancing the resilience of the power system [3][4]. Group 2: Achievements in Renewable Energy - During the "14th Five-Year Plan," China led the world in renewable energy scale, with wind and solar power installations exceeding 1.7 billion kilowatts, accounting for over 40% of global capacity [4][5]. - The renewable energy sector has contributed to a reduction of approximately 4.1 billion tons of carbon emissions globally, nearly one-tenth of the world's annual emissions [4][5]. Group 3: New Opportunities in the Energy Market - The establishment of national zero-carbon parks is expected to create new demands for distributed smart grids and carbon management platforms, requiring a 90% reduction in carbon intensity compared to current levels [2][7]. - The transition to a fully market-oriented renewable energy sector will compel companies to enhance their technological capabilities to compete effectively [2][5]. Group 4: Technological Innovations - Significant technological innovations include advancements in electric vehicles, lithium batteries, and photovoltaic products, as well as ultra-high voltage transmission technology [4][5]. - New business models such as integrated energy systems and green electricity supply are emerging, fundamentally changing the development patterns of the power grid [6][9]. Group 5: Zero-Carbon Park Standards - The core indicator for national zero-carbon parks is the carbon emissions per unit of energy consumed, with strict requirements for energy consumption and clean energy usage [7][8]. - The parks must primarily rely on green electricity, with a minimum of 50% of energy sourced from renewable sources [8][9].
“十五五”,能源“超级快递”这样“闪送”“输绿”
中国能源报· 2025-10-27 04:29
Core Viewpoint - The article emphasizes the significant advancements and future prospects of China's power grid, particularly focusing on the development of ultra-high voltage (UHV) technology and its role in supporting the country's energy transition and high-quality economic development [1][3][4]. Group 1: Achievements during the 14th Five-Year Plan - The length of UHV direct current lines increased from 28,000 kilometers to over 40,000 kilometers, while UHV alternating current lines grew from 14,000 kilometers to over 20,000 kilometers [3][5]. - The cross-regional UHV direct current channels delivered a 70% increase in clean energy transmission compared to the end of the 13th Five-Year Plan [5][6]. - The UHV projects have transformed from a "backbone network" to a "main artery," enhancing the capacity for cross-province and cross-region power transmission to 370 million kilowatts, a 30% increase from the end of the 13th Five-Year Plan [5][6]. Group 2: Role of UHV in Renewable Energy Development - UHV projects have played a crucial role in facilitating the development of renewable energy, with the first integrated wind-solar-fire storage export channel and the first new energy base export channel successfully operational [6][7]. - By 2024, the cross-regional UHV direct current transmission of clean energy is expected to reach approximately 4,200 billion kilowatt-hours, accounting for nearly 60% of total transmission [6][7]. - Significant breakthroughs in core UHV equipment have been achieved, enhancing the self-sufficiency of the entire UHV industry chain [6][7]. Group 3: Technological Innovations and Digital Transformation - The integration of advanced technologies such as artificial intelligence, big data, and digital twins is enhancing the safety and reliability of the power grid [8][15]. - The white crane pond to Jiangsu project is the first to adopt hybrid cascade transmission technology, effectively addressing safety pressures in densely connected areas [9][10]. - The upcoming projects, including the southeastern Tibet to Guangdong-Hong Kong-Macao Greater Bay Area project, will set multiple world records in terms of capacity and altitude, showcasing China's leadership in flexible direct current technology [9][10]. Group 4: Future Outlook for the 15th Five-Year Plan - The 15th Five-Year Plan is expected to accelerate UHV construction, focusing on the development of new energy bases and enhancing the management of UHV projects to ensure timely commissioning [14][15]. - The transition to a new power system dominated by renewable energy will require the power grid to adapt and innovate continuously [14][15]. - The integration of supply services will evolve, positioning power companies as "energy managers" and "green partners," providing diverse energy efficiency and carbon management services [15][16].
“特高压技术”美日俄全失败,中国突破核心科技,还定下世界标准
Sou Hu Cai Jing· 2025-10-20 13:58
Core Viewpoint - The article emphasizes the significance of China's ultra-high voltage (UHV) transmission technology, which has transformed the country's energy landscape and established it as a global leader in this field [3][5][64]. Group 1: Energy Distribution Challenges - China's energy distribution is characterized by a significant imbalance, with over 80% of wind energy, 90% of solar energy, and 76% of coal located in the western and northern regions, while over 70% of electricity consumption occurs in the industrially developed eastern regions [7][9]. - The previous reliance on coal transportation to meet electricity demand was inefficient and contributed to severe air pollution, particularly during peak electricity usage [11][13]. - The urgent need to develop renewable energy resources in the west, coupled with the challenge of efficient long-distance transmission, highlighted the necessity for UHV technology [15][19]. Group 2: Development of UHV Technology - In response to the challenges, China initiated the development of UHV technology in 2000 to facilitate the "West-East Power Transmission" strategy, aiming to transport large-scale hydropower from the west to the east [21][23]. - Initial conventional transmission technologies were inadequate, necessitating the development of UHV technology to avoid high costs and energy losses associated with building multiple lines [25][29]. - Despite facing skepticism and opposition, extensive collaboration among research institutions and manufacturers led to breakthroughs in over 310 key technologies, including the development of a 6-inch thyristor with a current capacity of 6000 amperes [31][33]. Group 3: Impact and Significance of UHV Technology - UHV technology has evolved beyond mere electricity transmission, becoming a crucial element in China's energy transition, energy security, and international competitiveness [38][40]. - The technology has effectively replaced coal-fired power generation in regions like Beijing, contributing to improved air quality and environmental benefits [41][43]. - UHV networks have established a robust energy configuration in China, ensuring stability and rapid supply-demand balance across regions, making it the only major power grid globally without large-scale blackout incidents [45][49]. Group 4: Global Leadership and Future Prospects - China has constructed over 50,000 kilometers of UHV lines, enough to circle the Earth, and continues to plan for more UHV corridors to support large-scale renewable energy development [66][69]. - The success of UHV technology has positioned China as a global benchmark, with its standards being adopted internationally, and has enhanced its influence in the global energy transition [51][55]. - The ongoing advancements in UHV technology signify a commitment to continuous innovation and the potential for further breakthroughs in the energy sector [71].
纽约时报:中国已有42个……
中国能源报· 2025-10-14 00:56
Core Insights - The article highlights China's advanced ultra-high voltage (UHV) transmission technology, which enables the transfer of electricity generated from renewable sources in the northwest to eastern provinces, showcasing a significant infrastructure achievement [2][3]. Group 1: UHV Transmission Technology - The UHV transmission technology is defined as alternating current at 1000 kV and direct current at ±800 kV and above, likened to an "energy highway" [3]. - China has established 42 UHV transmission lines capable of transporting electricity at voltages between 800 kV and 1100 kV, significantly surpassing the capabilities of the U.S. [8][9]. - The technology is crucial for supporting China's clean energy development and is seen as a model for other countries to follow in transitioning to green energy [3][5]. Group 2: Renewable Energy Development - Over half of the cars in China are now battery-powered, and the country has developed a high-speed rail network spanning approximately 48,200 kilometers, reflecting a massive demand for electricity [4]. - In April, wind and solar energy contributed to over 25% of China's total electricity generation, indicating rapid growth in renewable energy sources [4]. - The article emphasizes that while the U.S. struggles with lengthy approval processes for new transmission lines, China is rapidly expanding its grid infrastructure to accommodate its energy needs [8][9]. Group 3: International Comparison - The article contrasts China's achievements with the U.S., noting that the highest voltage transmission line in the U.S. operates at 765 kV and covers only 2000 miles, which is less than the length of a single Chinese UHV line [8][9]. - The U.S. media's interest in China's UHV technology reflects a desire for American policymakers to accelerate their own transition to clean energy [3][9].
我国电气化率反超欧美国家的密码
中国能源报· 2025-10-14 00:56
Core Viewpoint - China's electrification rate is projected to exceed 28% in 2024, surpassing major developed economies in Europe and the US, with an expected rate of around 35% by 2030, which is 8 to 10 percentage points above the OECD average [1][2] Institutional Track - The institutional framework is the foundational "invisible base" for China's electrification, with a consistent energy strategy from the 12th to the 14th Five-Year Plan, integrating electrification as a key component of national modernization and aligning with carbon neutrality goals [1][2] Technological Track - Over the past three decades, China has shifted from "exchanging market for technology" to "nurturing technology through scenarios," establishing a robust industrial chain in solar, wind, and battery sectors, and achieving breakthroughs in grid technology, including unique ultra-high voltage transmission and smart grid systems [2][3] Market Track - China boasts the world's largest unified electricity market and the largest markets for new energy vehicles, solar, and wind manufacturing, leading to rapid cost reductions; by 2023, the cost of solar power generation fell below 0.3 yuan, and battery prices dropped over 70% in five years, creating a positive cycle of technology maturity, cost reduction, market expansion, and reinvestment [2][3] Global Role Transformation - The leading electrification rate indicates China's transition from energy independence to participating in global energy governance, becoming the largest producer of solar, wind, and battery technologies, and supporting energy infrastructure in developing regions, thus reshaping the value chain [3][4] Economic Globalization - China's technology-driven renewable energy development is breaking traditional oil and gas geopolitical logic, promoting inclusive economic globalization and providing new opportunities for shared development among nations [4] Challenges and Opportunities - Despite leading in electrification, challenges remain, such as enhancing grid flexibility, balancing multiple goals in electricity market reforms, and addressing supply chain risks and carbon tariff barriers; however, these challenges present opportunities for institutional innovation and modern governance in global energy [4]