今天（12月24日），"陕电入皖"±800千伏特高压直流输电工程陕西段全线贯通。 该工程起于陕西宝塔山换流站，落点为安徽合州换流站，途经陕西、河南、安徽三省，线路全长约1070 公里，其中，陕西段线路全长约244公里，穿越黄土高原、山地、林区等多种复杂地形。 据悉，该工程预计明年6月投运后，每年可将超360亿千瓦时的陕北清洁电能输送至安徽，进一步优化我 国能源资源配置，保障华东地区电力可靠供应。 （文章来源：央视新闻） ...

Core Viewpoint - The successful operation of the 750 kV transmission project of the Xiwangzhai coal-electricity integration project enhances energy supply and efficiency in the Shaanxi region, supporting regional economic development and sustainable energy utilization [1][2]. Group 1: Project Overview - The 750 kV transmission project consists of two segments: one from Xiwangzhai Power Plant to Qingshuichuan Power Plant, and the other from Xiwangzhai Power Plant to the ±800 kV Shanbei converter station [1]. - The project includes the construction of 130 new transmission towers over a total length of 63.422 kilometers, serving as a crucial power source for the Shaanxi-Hubei ±800 kV UHVDC transmission project [1]. Group 2: Operational Impact - The project alleviates output limitations for the second and third phases of the Qingshuichuan Power Plant, releasing 800 MW of capacity and expected to generate an additional 10 billion kWh of electricity annually [2]. - It enhances the overall transmission efficiency of the Shaanxi-Hubei ±800 kV UHVDC project, contributing to regional energy supply stability, promoting renewable energy consumption, and optimizing energy resource allocation [2].

Group 1: Land Resource Management in Shandong - Shandong Province aims to reduce the total amount of newly constructed land by over 10% during the "15th Five-Year Plan" compared to the "14th Five-Year Plan" [1] - The implementation plan includes six main areas and eighteen specific measures to enhance land resource efficiency and support green, low-carbon, and high-quality development [1] - By 2030, the plan seeks to significantly enhance the industrial and population carrying capacity in economically advantageous areas while improving food, ecological, and energy security functions in other regions [1] Group 2: International Trade and Investment Conference - The 2025 Shandong International Trade and Investment Advisory Conference was held in Jinan, focusing on promoting green, low-carbon, and high-quality development [2] - International advisors from over ten countries provided 18 suggestion reports covering key areas such as green low-carbon initiatives, biomedicine, digital economy, and cross-border trade cooperation [2] - The conference aims to help Shandong build a more resilient and competitive open economy system during the "15th Five-Year Plan" [2] Group 3: Aerospace Manufacturing Innovation Conference - The 2025 Aerospace Equipment Intelligent Manufacturing Innovation Development Conference took place in Yantai, attracting over 350 participants to discuss future paths for the aerospace industry [4] - Cooperation agreements were signed between the Yantai Intelligent Manufacturing Technology and Equipment Innovation Center and seven other organizations to enhance core technology development and talent cultivation [4] - The event included discussions on precision manufacturing processes, smart equipment applications, and collaborative innovation within the industry [4] Group 4: Energy Infrastructure Development - The "Long Electric into Shandong" project, including a 330 kV renewable energy transmission line, has been fully operational, meeting the energy needs of 4.5 million kilowatts in the Baiyin area [6] - The project is expected to deliver approximately 11 billion kilowatt-hours of renewable energy annually to Shandong, saving 3.5 million tons of standard coal and reducing carbon dioxide emissions by 9 million tons [6] - This initiative creates a complete energy industry chain, optimizing resource allocation and ensuring energy security [6]

Core Insights - The successful commissioning of the first phase of the Gansu Zhangye Power Plant's expansion project marks a significant milestone in the construction of a key support project for the Gansu "14th Five-Year Plan" and the development of the Hexi Corridor clean energy base [1][2] Group 1: Project Overview - The Gansu Zhangye Power Plant expansion project involves a 750 kV transmission line that spans 80.51 kilometers, connecting the Zhangye Power Plant to the Zhangye Ganzu 750 kV substation [1] - The project includes the construction of 169 new transmission towers and the expansion of two outgoing line intervals, increasing the transmission capacity by over 4,000 MW [1] - The project will provide reliable peak regulation and compensation support for over 4.86 million kW of new energy installations in the Zhangye region, excluding 1.57 million kW of energy storage [1] Group 2: Technological Innovation - The project employs an innovative "one pull six" tensioning and wire-laying technique, which allows for the simultaneous deployment of six sub-conductors, enhancing construction efficiency by 30% compared to traditional methods [1] Group 3: Economic Impact - The completion of this transmission corridor will strengthen the grid's role as a hub for energy resource allocation, facilitating large-scale development and efficient consumption of renewable energy in the Hexi region [2] - It is expected to play a crucial role in ensuring the safe and stable operation of the direct current system during peak load periods, thereby supporting the central Gansu power grid and promoting local economic development [2]