Core Insights - China has achieved a remarkable milestone in its power generation capacity, reaching 2.81 billion kilowatts and an annual electricity generation of 9.4 trillion kilowatt-hours in 2024, establishing itself as a global leader in the electricity sector [1][9][10] Historical Context - In 1949, China's total installed power generation capacity was only 1.85 million kilowatts, which was insufficient for even a medium-sized city's electricity needs [3] - The early days of electricity in China were characterized by limited access, with rural areas relying on kerosene lamps and candles, highlighting the significant progress made since then [3] Development and Infrastructure - The rapid expansion of power generation began in the 1980s with the construction of numerous thermal and hydropower plants, driven by the need for electricity despite environmental concerns [5] - The implementation of the "West-East Power Transmission" project in 2002 marked a significant advancement in China's electricity infrastructure, enabling the transfer of electricity over vast distances with minimal losses [5][12] Technological Advancements - China has developed cutting-edge technologies in high-voltage power transmission, allowing for efficient electricity transfer with losses of less than 5% over long distances [5] - The introduction of new energy storage systems, projected to exceed 73 million kilowatts by 2025, will enhance grid stability and efficiency [7] Export and Global Influence - In 2024, China's exports of electrical equipment, including transformers, saw significant growth, with transformer exports increasing by 67.94% [9] - China's high-voltage power lines are extending internationally, contributing to electricity supply in countries like Laos and Pakistan as part of the Belt and Road Initiative [9] Major Projects - Major hydropower projects such as the Three Gorges and Baihetan dams are not only crucial for energy supply but also serve as symbols of national pride [10] - The construction of a new hydropower station on the Yarlung Tsangpo River in Tibet, with a capacity of over 70 million kilowatts, is expected to significantly impact the energy landscape in Eastern China [10] Challenges and Resilience - Despite challenges such as reduced electricity imports from Russia and issues in other countries' power sectors, China's comprehensive approach to energy policy and infrastructure development has proven effective [12] - The strength of China's electricity sector lies in its integrated approach, encompassing policy, infrastructure, technology, and operational efficiency [12]

在电网工程建设投资中，特高压输电与智能电网技术成为核心驱动力。截至2024年底，全国电网220千 伏及以上输电线路长度达96.1万千米，同比增长3.5%。 展望未来，报告指出，"十五五"期间，我国电源与电网建设呈现规模扩张与结构优化并进态势。电源方 面，煤电战略地位稳固，不断向基础性、调节性电源转型，并与新能源联营实现清洁降碳；水电迎来跨 越式发展，常规水电与抽水蓄能建设加速；新能源区域布局持续优化，西部形成"沙戈荒"基地、水风光 一体化基地外送主力。(完) （文章来源：中国新闻网） 中新网北京8月15日电 (记者王梦瑶)中国电力建设企业协会15日在北京发布的《中国电力建设行业年度 发展报告2025》指出，去年行业投资呈现全面增长态势，电网工程投资加速推进。 2024年，中国电力建设发展指数(PCDI)从一季度的86.5上升至四季度的94.58。全国主要电力企业完成投 资18178亿元，同比增长13.9%。 其中，电源工程投资12094亿元，同比增长13.2%；电网工程建设投资6084亿元，同比增长15.3%。电源 投资中，水电投资1154亿元，同比增长12.2%；火电投资1879亿元，同比增长38.0%；核 ...

Core Viewpoint - The article highlights China's significant advancements in ultra-high voltage (UHV) transmission technology, which has positioned the country as a global leader in the power sector, surpassing Western nations in both technology and influence [2][29]. Group 1: Historical Context - China's electricity industry began with reliance on imported American equipment, with the first electric light in Shanghai in 1882 [5]. - Initially, China's power generation ranked 21st globally, but the demand surged post-economic reforms, revealing structural challenges in energy distribution [5][10]. Group 2: Technological Development - The geographical and demographic disparities in China necessitated efficient power transmission solutions, leading to the development of UHV technology [7][10]. - UHV transmission lines can increase capacity by approximately five times and significantly reduce transmission losses over long distances, with effective ranges exceeding 2000 kilometers [8][10]. Group 3: Implementation and Achievements - The first UHV AC demonstration project was operational in 2009, marking a significant technological breakthrough [14]. - By 2023, China had constructed 40,000 kilometers of UHV lines, capable of transmitting over 2 trillion kilowatt-hours annually, equivalent to reducing coal transport by 600 million tons [16][18]. Group 4: Global Influence - China's UHV technology has become the world's largest and most advanced network, with comprehensive mastery over design, manufacturing, construction, and operation [18][19]. - The successful application of this technology has not only addressed domestic energy distribution challenges but has also gained international recognition, with projects in Brazil and the Philippines utilizing Chinese technology [27][29]. Group 5: Challenges and Future Prospects - Despite the success, the global promotion of UHV technology faces challenges, particularly in developed countries like the United States, due to complex geographical and regulatory environments [33][35]. - China's advancements in UHV technology provide a viable solution to global energy, environmental, and climate issues, contributing to a sustainable future [37][40].

Core Viewpoint - China's ultra-high voltage (UHV) transmission technology has transformed from a follower to a leader, enabling efficient electricity transport over long distances, significantly impacting energy distribution and environmental sustainability [1][7][11]. Group 1: Technology and Innovation - The UHV technology allows for a transmission capacity of 1000 kV AC, which is five times that of 500 kV UHV, and ±800 kV DC can transmit electricity over 2500 kilometers without loss [1]. - Breakthroughs in insulator technology have been achieved, with Chinese companies developing porcelain insulators that can withstand 1000 kV, three times stronger than ordinary ceramics [3]. - The use of special paper insulation materials in transformers has reduced equipment weight from thousands of tons to 500 tons, addressing global transportation challenges for oversized equipment [3]. Group 2: Economic and Environmental Impact - The construction cost of a single UHV line exceeds 3 billion yuan, but it saves the equivalent of 100,000 train trips annually compared to coal transportation [7]. - The ecological benefits are significant, with the Qinghai-Henan line alone reducing carbon dioxide emissions by 29.6 million tons each year [7]. Group 3: Global Influence and Standardization - As of now, China holds 84% of global UHV patents, with the localization rate of key equipment increasing from 30% to 100% [8]. - The international adoption of Chinese UHV technology is evident, as seen when Brazil invested $1.9 billion to import this technology [7]. Group 4: Future Developments - The advancement of multi-terminal flexible DC technology is evolving UHV from a "power high-speed rail" to an "intelligent grid," enhancing transmission efficiency by 40% [11]. - This technology is positioned as a foundational pillar for China to achieve its dual carbon goals, paralleling developments in high-speed rail and 5G [11].

Group 1: European Heatwave and Energy Crisis - Europe is experiencing extreme heat, with temperatures reaching 46°C in Spain and 47°C in Portugal, causing significant discomfort and challenges for residents [1][3] - The air conditioning penetration rate in Europe is only 20%, and the high installation costs, around €7,000 (approximately 50,000 RMB), make it unaffordable for many [3] - The average electricity price in Germany is projected to be €39.5 per 100 kWh in 2024, leading to exorbitant monthly electricity bills for households, making air conditioning a financial burden [3] Group 2: China's High Voltage Transmission Technology - China's high voltage transmission technology, particularly UHV (Ultra High Voltage), has significantly improved energy distribution efficiency, addressing the mismatch between energy production and consumption across regions [6][7] - UHV technology reduces transmission losses to 2.8%, enhancing the economic viability of power plants in remote areas and overcoming distance limitations in electricity delivery [10] - China has successfully built 19 UHV AC lines and 20 UHV DC lines, totaling over 40,000 kilometers, showcasing rapid development in this technology over the past two decades [10] Group 3: Global Influence and Future Prospects - China's UHV technology has been implemented internationally, aiding countries like Egypt and Brazil in improving their electricity supply and reducing power outages [11] - By 2030, China aims to complete regional interconnections and by 2050, establish a global UHV network, positioning electricity as a critical strategic resource [11][12] - The development of UHV technology reflects China's commitment to addressing global energy challenges and enhancing its role in the international energy landscape [12]

Group 1 - Europe is experiencing an unprecedented heatwave, with temperatures reaching 46°C in Spain and 47°C in Portugal, leading to severe impacts on daily life and infrastructure [1][3] - The heatwave has caused significant disruptions, including the shutdown of nuclear power plants in France due to high river temperatures, affecting electricity supply across Europe [3] - Many Europeans lack air conditioning, with only 48% of households in the EU equipped with it, primarily due to high electricity costs, such as Germany's average price of €0.39 per kWh [5] Group 2 - In contrast, China's ultra-high voltage (UHV) technology is showcased as a solution to energy challenges, with the ±1100 kV line in Gansu efficiently transmitting electricity over long distances with minimal loss [6] - UHV technology is described as significantly more efficient than traditional power lines, with only 2.7% energy loss over 3300 km, compared to 15% over 500 km for conventional lines [6] - The global deployment of UHV technology is predominantly in China, with 39 out of 42 operational lines, highlighting a technological gap between China and developed countries [11][12] Group 3 - The urgency for advanced energy solutions is emphasized by a UN warning of a potential global electricity shortfall equivalent to the power generation of seven Indias by 2040 [12] - UHV technology is positioned as a critical tool for combating climate change, with the potential to significantly reduce coal consumption and contribute to global energy needs [12] - The narrative contrasts the technological advancements in China with the struggles of developed nations, illustrating a shift in energy paradigms and the importance of innovation in addressing climate challenges [13]

Core Viewpoint - The article highlights the significant transformation of China's power system standards, emphasizing that China has become a leader in power technology and standards, influencing even the U.S. power system [1][22]. Historical Development - The introduction of electricity in China began in the late Qing Dynasty, with the first power plant established in 1882, marking the start of China's journey towards self-sufficient power development [4]. - By the 1980s, major projects like the Three Gorges Dam and Qinshan Nuclear Power Plant showcased China's engineering capabilities and integration with international technology [6][8]. - The establishment of the first domestically designed 110 kV transmission line in 1955 marked a significant milestone in China's independent power infrastructure [5]. Technological Advancements - China's installed power generation capacity reached 2.72 billion kilowatts, with clean energy accounting for over 53.9%, surpassing thermal power for the first time [8]. - The development of Ultra High Voltage (UHV) transmission technology, which allows efficient long-distance power transmission, is a key innovation that has positioned China as a global leader in power technology [10][12]. Global Influence - China has successfully exported its power technology and standards to over 40 countries, including Brazil and several African nations, demonstrating the global acceptance of Chinese power standards [14][16]. - The International Electrotechnical Commission (IEC) has seen China take a leading role in establishing various technical standards, further solidifying its position as a standard-setter in the power industry [13]. Organizational Strength - China's unified national grid system contrasts with the fragmented U.S. system, showcasing superior planning and operational efficiency [17]. - The concentration of top talent in power engineering and continuous government investment over the past two decades have been crucial in advancing China's power technology from follower to leader [19].