中国发展网讯 记者皮泽红报道 位于海南省黎母山镇的琼中抽水蓄能电站里一派热火朝天的繁忙喜庆景 象。"春节期间，我们运维团队将24小时坚守在岗，确保电站随时响应自贸港电力调节需求。"电站运行 值长余运捷边说边给中控室贴上窗花，他刚刚完成2月15日上午机组巡检。春节将至，海南琼中抽水蓄 能电站值班留守人员给电站中控室贴上窗花。李冕祺 摄据介绍，在海南自贸港封关运作后的首个春节 假期，琼中抽蓄电站预计将启动近200次，为全岛提供近2000万度清洁电能，满足约36万居民用户的假 日用电量。而在刚刚过去的2025年，该电站年启动次数达到7117次，为海南调节电量14.7亿度，这两项 数据分别达到"十四五"初的7.4倍和3.7倍。单台机组调用频次达到6.5次，位居全国抽蓄电站之首。不止 海南的琼中抽蓄电站，占全国国土面积不到5%的华南地区现有在运抽水蓄能电站8座，装机规模接近全 国抽水蓄能总量的五分之一，是抽水蓄能产业发展的"密集地"。2025年，华南地区各抽蓄电站均交出了 亮眼的"运行成绩单"。据统计，42台机组在年调节电量同比基本持平的情况下，年启动次数首次突破 50000次，达到50554次，同比增长23%。"调节 ...

科技日报记者 叶青 通讯员 黄昉 春节将至，位于海南省黎母山镇的琼中抽水蓄能电站里一派热火朝天的繁忙喜庆景象。"春节期间，我们运维团队将24小时坚守在岗，确保电站随时响应自 贸港电力调节需求。"电站运行值长余运捷边说边给中控室贴上窗花，他刚刚完成2月15日上午机组巡检。 据介绍，在海南自贸港封关运作后的首个春节假期，琼中抽蓄电站预计将启动近200次，为全岛提供近2000万度清洁电能，满足约36万居民用户的假日用电 量。而在刚刚过去的2025年，该电站年启动次数达到7117次，为海南调节电量14.7亿度，这两项数据分别达到"十四五"初的7.4倍和3.7倍。单台机组调用频 次达到6.5次，位居全国抽蓄电站之首。 不止海南的琼中抽蓄电站，占全国国土面积不到5%的华南地区现有在运抽水蓄能电站8座，装机规模接近全国抽水蓄能总量的五分之一，是抽水蓄能产业发 展的"密集地"。2025年，华南地区各抽蓄电站均交出了亮眼的"运行成绩单"。据统计，42台机组在年调节电量同比基本持平的情况下，年启动次数首次突破 50000次，达到50554次，同比增长23%。"调节电量基本持平，启动次数却大幅增加，反映出抽水蓄能机组满足波动性新能 ...

道孚—新都桥500千伏工程起于甘孜道孚500千伏变电站，止于新都桥500千伏变电站，线路全长约115.8 公里，新建铁塔248基。作为甘孜州电网升级的关键项目，该工程投运后可有效改善当地电网结构，稳 定保障道孚地区150万千瓦光伏发电的上网消纳，破解高原清洁能源送出瓶颈，助力当地将资源优势转 化为发展优势，为民生改善和区域高质量发展提供有力支撑。 广元火电500千伏送出工程起于中煤广元电厂，止于昭化500千伏变电站，线路全长35.2公里，新建铁塔 48基。该工程投运后可有效满足川东北地区负荷增长需求，优化区域能源供应结构，增强电网调峰保供 能力，为广元地区产业升级和民生改善提供坚实电力支撑。 "工程建设中，我们精准把控进度与质量，构建主动防控型安全体系，通过'桌面推演+现场实操'双重防 控模式排查隐患、严守安全底线，确保工程按期高标准投运。"国网四川建设公司工程管理部副主任师 骁介绍，建设团队充分借鉴复杂地形施工经验，强化全流程安全质量管控，高效推进建设任务，确保两 项工程如期服务春节保供。 中新网成都2月14日电 (记者 刘忠俊)记者14日从国网四川省电力公司获悉，道孚—新都桥、广元火电两 项500千伏重点 ...

Core Insights - The successful operation of the Daofu-Xinduqiao 500kV project and the Guangyuan Coal Power 500kV transmission project enhances the power supply reliability and clean energy consumption capacity in Sichuan, supporting the economic development of the Chengdu-Chongqing economic circle [1][3]. Group 1: Project Details - The Daofu-Xinduqiao 500kV project spans approximately 115.8 kilometers and includes the construction of 248 new towers, significantly improving the power grid structure in Ganzi Prefecture and ensuring the stable integration of 1.5 million kilowatts of photovoltaic power [3]. - The Guangyuan Coal Power 500kV transmission project covers a length of 35.2 kilometers, enhancing the energy supply structure in Northeast Sichuan and supporting local industrial development and public welfare [3]. Group 2: Construction and Safety Measures - The construction process emphasized precise control over progress and quality, implementing a proactive safety system and regular risk assessments to ensure timely and high-standard project completion [5]. - The completion of these key projects before the Spring Festival is a strategic move to ensure the warmth and power supply for the people of Sichuan during the holiday season, laying a solid foundation for the 14th Five-Year Plan for power grid construction [5]. Group 3: Future Developments - The ongoing development of major projects, such as the Aba-Chengdu East 1000kV ultra-high voltage project, will further strengthen the main grid in Sichuan and enhance the capacity for clean energy consumption, making every kilowatt-hour a vital resource for safeguarding livelihoods and promoting development [5].

Core Viewpoint - The approval of the "Dalat—Mengxi 1000 kV AC Transmission and Transformation Project" marks a significant step in China's energy infrastructure, enhancing the transmission capacity from Inner Mongolia to the Beijing-Tianjin-Hebei region and supporting the country's clean energy goals [1][2]. Group 1: Project Details - The Dalat—Mengxi project includes the construction of a new 1000 kV substation at Dalat, with two sets of 3 million kVA transformers, and a double-circuit 1000 kV line spanning 2×124.6 kilometers, with a total investment of 4.374 billion yuan [1]. - The project is part of the key initiatives outlined in China's 14th Five-Year Plan for electricity, and it is the first supporting project for the ±800 kV UHVDC transmission project in the Beijing-Tianjin-Hebei area [1]. Group 2: Economic and Environmental Impact - The construction of the project is expected to generate multiple benefits, including stimulating investment, creating jobs, and restoring the ecosystem, while meeting the power transmission needs of the UHVDC project [1]. - The project is crucial for converting resource advantages in western China into economic benefits, facilitating large-scale consumption of clean energy, and promoting coordinated development in the Beijing-Tianjin-Hebei region [1]. Group 3: Future Developments - The State Grid Mengdong Electric Power Company aims to expedite preliminary procedures and land acquisition, targeting construction to begin in April 2026, ensuring synchronization with the ±800 kV UHVDC project [1]. - The "15th Five-Year Plan" includes the construction of 12 UHV transmission line projects, which will increase Inner Mongolia's total transmission capacity to 96.7 million kW, with an expected external power delivery exceeding 1 trillion kWh during this period [2][3].

Core Viewpoint - The completion of the cross-border 500 kV power transmission line between China and Laos marks a significant milestone in energy cooperation, enhancing regional energy security and optimizing resource allocation [1][2]. Group 1: Project Overview - The project connects Laos' Udomxay and Salavan provinces with Yunnan province in China, spanning a total length of 177.5 kilometers [1]. - It is expected to be fully operational by April 2026, with a bi-directional power exchange capacity of 1.5 million kilowatts and an annual clean energy transmission of approximately 3 billion kilowatt-hours [1]. Group 2: Environmental Considerations - The project faced significant ecological challenges, including traversing tropical rainforests and national nature reserves, leading to innovative transportation solutions using helicopters and large drones [2]. - Environmental protection measures included optimizing the construction path to reduce rainforest coverage from 32% to 20%, implementing an intelligent warning system in elephant habitats, and minimizing ecological impact through various sustainable practices [2]. Group 3: Bilateral Cooperation - The project is a continuation of 16 years of deepening electricity cooperation between China and Laos, following previous initiatives like the South Tower River No. 1 Hydropower Station and the China-Laos Railway [2]. - The construction process fostered local talent development and created hundreds of job opportunities for Laotians, enhancing the socio-economic ties between the two nations [2][3]. Group 4: Future Implications - The project symbolizes a commitment to shared development and ecological protection, with the completed line set to deliver not only clean energy but also a promise of future cooperation between China and Laos [3].

Core Viewpoint - Countries worldwide face similar challenges in transitioning to "net-zero power systems," including the volatility introduced by renewable energy, increased demand for flexibility and reliability in power systems, and the need for larger-scale coordination of clean energy [1] Group 1: Enhancing Grid Flexibility - Improving the capacity for renewable energy integration relies on enhancing grid flexibility, which involves compensating resources for their contributions at the right time and place [2] - Current domestic spot market price fluctuations are significantly tighter compared to most European and American markets, where price limits are less restrictive and can reflect supply shortages [2] Group 2: Expanding Power Balance Areas - Expanding power balance areas is an effective strategy to alleviate clean energy integration issues, allowing for a larger resource pool and better matching of clean energy and demand at lower costs [3] Group 3: Breaking Down Internal Barriers - The integration of electricity spot markets across different levels and regions is complex, but lessons can be learned from other markets, such as the EU's progress in establishing a unified electricity market and India's market reform initiatives [4] Group 4: Fair Competition - Policymakers are tasked with ensuring that new energy sources can compete fairly with traditional fossil fuels, emphasizing the need for transparent market rules that allow for equal competition [5] Group 5: Key Principles for Clean Energy Integration - Three important principles for addressing clean energy integration include ensuring appropriate compensation for resources, optimizing inter-resource cooperation across larger balance areas, and allowing traditional and new resources to compete under transparent rules [6][7]

Core Insights - The article highlights the significant growth in green electricity trading in the four leagues of Inner Mongolia, with a projected trading volume of 49 billion kilowatt-hours by 2025, representing a year-on-year increase of 383% [1] - The region's abundant wind and solar resources, along with its proximity to major electricity markets, position it as a key player in the transition to a cleaner energy structure and national energy security [1] - The establishment of innovative market mechanisms and a blockchain-based system for tracking green electricity transactions enhances transparency and efficiency in the trading process [1] Group 1 - By July 1, 2025, all new energy in the four leagues will fully enter the electricity market, with a projected green electricity trading volume of 27.82 billion kilowatt-hours, marking a 435% year-on-year increase [2] - Cumulative green electricity transactions are expected to reach 10,800, with a tenfold increase compared to previous years [2] - The company will establish a monthly supply-demand coordination mechanism with East and North China grid companies, facilitating cross-regional green electricity trading [2] Group 2 - The annual delivery of green electricity to Beijing is expected to exceed 1 billion kilowatt-hours, with the first-time delivery to Shanghai, Jiangsu, and Anhui, resulting in a total external trading volume of 21.2 billion kilowatt-hours, a 313% increase year-on-year [2]

Core Viewpoint - Guangzhou has initiated two major power grid construction projects to enhance its electricity supply capacity, aligning with the goals of the 14th Five-Year Plan [1][2]. Group 1: Project Details - The 500 kV Haizhu Substation is the first of its kind in Guangzhou's central urban area, with an investment of 5.2 billion yuan, expected to be operational by 2027 [1]. - The 500 kV Banghai (Fan Nan) Substation aims to be the first smart power equipment integration demonstration substation in Southern Power Grid, with an investment of 1.3 billion yuan, also expected to be operational by 2027 [1]. - Both projects are designed to support key development areas such as the Haizhu Artificial Intelligence and Digital Economy Pilot Zone and the Guangzhou International Financial City [1]. Group 2: Investment and Capacity Expansion - During the 14th Five-Year Plan period, Guangzhou's power grid construction completed an investment of 46.94 billion yuan, adding 71 substations and increasing main transformer capacity by 19.818 million kVA [2]. - The construction of major projects like the Guangdong-Hong Kong-Macao Greater Bay Area interconnection has enhanced the electricity exchange capacity between Guangdong's eastern and western regions to 10 million kW [2]. - The upcoming 15th Five-Year Plan period will see an increase in investment for power grid construction, with plans to add 87 substations and enhance supply capacity by over 40% [1].

Core Viewpoint - The Nanning Pumped Storage Power Station, the first of its kind in Guangxi, has been fully operational, marking a significant milestone in China's energy infrastructure development under the "14th Five-Year Plan" [1][3]. Group 1: Project Overview - The Nanning Pumped Storage Power Station is located in Wuming District, Nanning, with a total investment of approximately 8 billion yuan and an installed capacity of 1.2 million kilowatts [1]. - The facility consists of four pumped storage units, capable of converting 1.2 million kilowatt-hours of clean electricity from 1 million cubic meters of water every hour, sufficient to meet the daily electricity needs of 200,000 households [1]. - The construction of the power station took only 41 months from the start of the project to full operation, setting a new speed record for pumped storage projects in China [3]. Group 2: Impact on Energy Sector - The completion of the Nanning Pumped Storage Power Station will significantly enhance the grid regulation capacity in Guangxi, providing strong support for the consumption of clean energy, with an annual capacity to absorb up to 250 million kilowatt-hours of clean energy, thereby reducing carbon dioxide emissions by 220,000 tons [5]. - Since the beginning of the "14th Five-Year Plan," four large pumped storage power stations have been built and put into operation in South China, including the Nanning station, with the total installed capacity in the region reaching 1.268 million kilowatts, accounting for about one-fifth of the national total, and representing a growth of over 60% compared to the end of the "13th Five-Year Plan" [6]. Group 3: Industry Context - Pumped storage power stations function as large-scale energy storage systems, allowing excess electricity generated from renewable sources to be stored and utilized during periods of low generation, thus facilitating the stable integration of wind and solar energy into the grid [7]. - China's total installed capacity of pumped storage has reached 66 million kilowatts, providing a solid foundation for the large-scale and high-quality development of renewable energy [7]. - The operational capacity of pumped storage in South China exceeds 12 million kilowatts, highlighting the region's significant role in the national energy landscape [7].