Core Points - The world's highest UHVDC project, the Jinsha River upstream to Hubei ±800 kV UHVDC transmission project, has achieved full line connectivity, marking a significant milestone in China's "West-to-East Power Transmission" initiative [2][3] - The project spans 1,901 kilometers across four provinces (Sichuan, Chongqing, Tibet, and Hubei) and is designed to transport 40 billion kilowatt-hours of electricity annually, integrating hydropower and new energy sources [2] - The Sichuan section of the project is 976.4 kilometers long, with the most challenging construction occurring in the western Sichuan region, characterized by steep terrain and high altitudes [2][3] Project Details - The highest tower in the project reaches an altitude of nearly 4,800 meters, making it the highest UHV tower in the world [2] - Over 300 construction cableways have been established to enhance transportation efficiency in the mountainous areas during the construction phase [3] - The project is currently in the final stages, with the State Grid Sichuan Electric Power accelerating the debugging and testing of converter stations and lines to ensure timely operation [3]

Group 1 - The "Jin Electric Down Jiangnan" transmission channels have cumulatively delivered over 602.8 billion kilowatt-hours of electricity to the Yangtze River Delta region, equivalent to the electricity consumption of over 45 million households in Jiangsu for five years [1] - The first "Jin Electric Down Jiangnan" transmission line, established in 1997, has significantly contributed to Jiangsu's electricity supply, delivering over 10 billion kilowatt-hours annually, accounting for 13% of Jiangsu's total electricity consumption at that time [3] - The ±800 kV Yanmenguan to Huai'an UHVDC project, completed in 2017, added a transmission capacity of 8 million kilowatts, enhancing the efficiency of electricity transmission from Shanxi to Jiangsu and the East China region [3] Group 2 - Shanxi has been actively developing wind and solar power, with the installed capacity of renewable energy reaching 61.895 million kilowatts by the end of 2024, making up 50% of the province's total power generation capacity [4] - In 2024, the Yanhua DC transmission project is expected to deliver 52.63 billion kilowatt-hours of electricity, with approximately 30% coming from renewable energy sources, providing continuous green energy to Jiangsu [6] - Jiangsu has built five UHV transmission lines, with annual electricity imports from outside the province reaching 160 billion kilowatt-hours, accounting for 18% of the province's total electricity consumption [6] Group 3 - Jiangsu is accelerating the implementation of the Mengdong to Jiangsu DC project, aiming to increase external electricity receiving capacity from 45 million kilowatts to over 50 million kilowatts, thereby enhancing the province's electricity supply capability [6]

金沙江上游巴塘水电站首台机组并网发电 金十数据5月15日讯，位于金沙江上游的国家"十四五"规划重大工程，华电金上巴塘水电站首台机组经 过72小时试运行后，正式并网发电。巴塘水电站位于四川省和西藏自治区交界的金沙江干流，是"西电 东送"接续基地——金沙江上游清洁能源基地的重要支撑项目。电站总装机容量75万千瓦，年平均发电 量33.75亿千瓦时，可供应175万个家庭一年的用电量。 （央视新闻） ...

Core Viewpoint - The Yebatan Hydropower Station, located in the upper reaches of the Jinsha River, has successfully extracted a concrete core sample measuring 38.10 meters, setting a record for similar dam types in China [1][2]. Group 1: Project Overview - The Yebatan Hydropower Station has a total installed capacity of 2.24 million kilowatts and is being developed by China Huadian Corporation [2]. - The dam has a maximum height of 217 meters, making it the highest hyperbolic arch dam under construction in China [2]. - The project is part of the national "14th Five-Year Plan" and serves as a significant project for the "West-East Power Transmission" initiative [6]. Group 2: Construction and Quality Control - The core sample extraction was part of a random sampling process during the dam's construction, spanning 13 pouring units and 12 horizontal construction seams [2]. - The extracted core sample was found to be complete, smooth, and dense, indicating excellent inter-layer bonding and uniform aggregate distribution [2][4]. - Advanced technologies such as intelligent pouring, temperature control, and quality control techniques were employed to mitigate the risk of cracking due to significant temperature fluctuations at the site [4]. Group 3: Environmental Impact and Energy Production - Once fully operational, the Yebatan Hydropower Station is expected to generate an average annual electricity output of 10.205 billion kilowatt-hours [6]. - The project is projected to save 3.99 million tons of standard coal annually and reduce carbon dioxide emissions by 7.37 million tons [6].

齐鲁晚报·齐鲁壹点记者 王瑞超 5月8日，陇东—山东±800千伏特高压直流工程（以下简称陇东—山东工程）竣工投产，标志着我国首个"风光火储一体化"大型综合能源基地外送工程建成投 运，实现了能源资源跨区域优化配置，缓解了华北地区能源短缺与西部资源富集的矛盾，对于推动能源转型、助力区域协调发展具有重要意义。 今年政府工作报告提出，"加快建设'沙戈荒'新能源基地，发展海上风电，统筹就地消纳和外送通道建设"，为我国能源发展指明了方向。 国家电网公司董事长、党组书记张智刚表示，陇东—山东工程是我国又一条西电东送能源大动脉，工程投产将有力支撑"沙戈荒"大基地建设和新能源大规模 开发利用，有力服务山东甘肃两省和黄河流域高质量发展，有力带动电工装备制造升级和产业焕新，对于促进新能源集约开发、集成发展，推动山东甘肃两 省经济增长和区域协调发展，带动我国装备向高端迈进以及建设现代电力产业体系具有重要作用。 每年向山东输送电能360亿千瓦时，减排二氧化碳1600万吨 陇东—山东±800千伏特高压直流工程施工现场 通讯员 徐可 摄 陇东—山东工程起于甘肃省庆阳市庆阳换流站，途经陕西、山西、河北，止于山东省泰安市东平换流站，采用±80 ...

Core Viewpoint - The article highlights the dedication and contributions of He Jianguo, a deputy manager at the State Grid Qincheng Power Supply Company, emphasizing his commitment to restoring power during emergencies and improving the electrical infrastructure in the revolutionary old areas of China [1][12]. Group 1: Emergency Response and Achievements - In August 2010, during a major flood disaster in Huachi County, He Jianguo led emergency repairs, restoring power to six towns within 72 hours [2]. - In February 2021, He Jianguo coordinated a team to restore power after severe snow and ice storms caused significant damage, achieving power restoration in Huachi County after 63 hours of continuous effort [4]. - He Jianguo's motto, "I can't sleep if the circuit is down," reflects his commitment to immediate action during emergencies [5]. Group 2: Teamwork and Community Service - He Jianguo emphasizes that his achievements are a result of teamwork, stating, "This is not my individual achievement, but the result of the entire team's efforts" [9]. - He has actively engaged with the community, providing assistance beyond electrical services, such as helping elderly residents with daily needs [12][13]. - His leadership in the "配农网工程示范县" project resulted in the construction and renovation of 311.6 kilometers of 10 kV lines and the establishment of 363 standardized distribution transformer stations [9]. Group 3: Innovation and Technological Advancement - He Jianguo established the "He Jianguo Labor Model Innovation Studio," focusing on technological innovations that support high-quality development in the power grid [16]. - The company has invested 130.43 billion in the power grid, enhancing the integration of digital and intelligent technologies [17]. - New platforms and AI applications have been implemented to improve operational efficiency and service quality in the power supply sector [17].

可持续发展问题及解决路径 通道走廊作为保障"西电东送"南通道可持续发展的关键载体，亟须厘清南方区域外部接续通道规划布 局，缓解总电量缺口问题。西部地区高耗能产业发展带动电力需求快速增长，叠加风光等新能源出力保 障低等特性，南方区域实现电力系统电力电量实时平衡难度上升，考虑在更大范围内（如国内西藏、四 川、新疆、内蒙古等地区及国外澜湄地区）进行电力资源优化配置，新建南通道接续工程迫在眉睫。但 目前待建工程建设时序性不稳定，对供受端区域供需矛盾的传导路径不明确，且外送落点争执不断，地 方博弈加剧。 近年来，南方电网有限责任公司持续深化与国家电网、地方政府建立多层次合作渠道，与各方建立战略 合作框架，联手探索跨域电力资源协同配置机制。综合研判待建通道建设周期，收集待建通道沿线所在 省份网架承载力情况，及早预判不同外送线路走向对沿线各地区的影响程度，提前做好解决预案，推动 政府进行统筹协调，做好重点工程投产准备工作。 调控运行作为保障"西电东送"可持续发展的基础手段，"西电东送"通道功能亟须由单一线性往多元互济 转变，缓解"不同时序电力电量缺口"问题。现有单一输电模式相对刚性，供端专注电源建设和电网运 行，受端聚焦用 ...

在国家双碳目标、风光发电占比持续提升的背景下，"西电东送"的内涵正在发生深刻变化，面临更加紧 迫和更多的现实挑战。 "西电东送"作为国家战略能源工程，在优化国家能源布局、保障电力供应、促进区域协调发展中持续发 挥重要作用。 近期，国家能源局《2025年能源工作指导意见》提到，2025年将继续积极推进第二批、第三批"沙戈 荒"大型风电光伏基地和主要流域水风光一体化基地建设，并科学谋划"十五五""沙戈荒"新能源大基地 布局方案。可见，持续保障大基地新能源高效利用仍是当前乃至未来很长一段时间的重点工作。 作为解决新能源消纳利用的重要途径之一，在国家双碳目标、风光发电占比持续提升的背景下，"西电 东送"的内涵正在发生深刻变化，面临更加紧迫和更多的现实挑战。这些挑战既包括"西电东送"与"西电 西用"的统筹协调，也包括了风光波动、间歇特性对传统电源特性的颠覆性改变。 提升"西电东送"能力面临的突出短板 1.常规电源和电网基础设施建设滞后 电源电网基础设施建设滞后，是制约"西电东送"能力提升的突出短板。 一方面，近年来西部地区大力发展风电、光伏产业，导致电源结构愈发依赖风能、太阳能等可再生能 源。2022年，青海、西藏、云 ...