清洁能源利用
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媒体报道︱全国多地清洁供暖守护蓝天
国家能源局· 2025-11-13 01:41
Core Viewpoint - The article emphasizes the importance of clean heating initiatives across China, particularly in regions with harsh winter conditions, highlighting the balance between ensuring warmth for residents and maintaining environmental sustainability [2]. Group 1: Clean Heating Initiatives - The highest-altitude prefecture-level city in China, Naqu, Tibet, has launched the largest geothermal heating project, achieving zero pollution and zero emissions by overcoming technical challenges [2]. - Over 90% of the population in regions above 5000 meters in Tibet, including Lhasa, Naqu, Ali, and Shigatse, now benefit from clean heating solutions [2]. - In Qiu County, Hebei, a new waste incineration heating system has transformed municipal waste into a clean heat source, meeting the heating needs of 75% of local communities [2]. Group 2: Government Investment and Impact - Since 2017, the Chinese government has invested 132.07 billion yuan to support clean heating renovations in 88 cities in northern China, successfully replacing coal for approximately 41 million households [2].
打通核电站冷源系统“生命线” 广东陆丰核电5、6号机组有新进展
Ke Ji Ri Bao· 2025-11-05 05:44
Core Viewpoint - The successful completion of the main structure construction for the cooling water intake and seepage prevention project of the Lufeng Nuclear Power Unit 5 and 6 lays a solid foundation for the commercial operation of the units, highlighting the project's significance in promoting clean energy utilization and enhancing energy security in the Guangdong region [1]. Group 1: Project Overview - The Lufeng Nuclear Power project is crucial for advancing clean energy use and supporting the green low-carbon transition in the eastern Guangdong region [1]. - The project involves complex geological conditions, including high groundwater levels and strong permeability of sand layers, necessitating innovative construction techniques [1][4]. Group 2: Construction Techniques - The project team adopted high-pressure jet grouting technology to control seepage in the seepage wall, ensuring a manageable construction environment for deep foundation excavation and support [1]. - A unique construction plan combining seepage walls, deep foundations, and segmented large submerged pipes was developed to address the challenges posed by the project's structural features and site constraints [3]. - The innovative design of a "track-mounted hydraulic walking platform + custom arc steel formwork" system improved formwork assembly efficiency by approximately 30% and increased concrete pouring efficiency by about 25% [3]. Group 3: Quality Control - A comprehensive quality control system was established at the project's outset to ensure traceability and reliability, with all data recorded digitally for future reference [4]. - The project team implemented a rigorous process to ensure that every rebar and concrete mix ratio is documented, creating a quality archive that supports long-term operational safety [4]. Group 4: Risk Management - The deep foundation excavation, reaching a depth of 30 meters, posed significant risks, which were mitigated through advanced simulation and monitoring techniques [5]. - The project team optimized the support system from five concrete supports to a composite system of three concrete supports and localized steel supports, enhancing safety while reducing costs [5].
中国成功发射高分十四号02星;川投泸州天然气发电项目双机组建成投运丨智能制造日报
创业邦· 2025-10-27 03:28
Group 1 - The "Orion" spacecraft for NASA's Artemis 2 mission has successfully docked with the Space Launch System rocket, marking a significant step towards the first crewed deep space flight in over half a century [2] - China successfully launched the Gaofen-14 02 satellite, which will provide high-precision imagery and geographic information for national economic and defense projects, including the Belt and Road Initiative [2] - A breakthrough in the field of photoresists has been achieved by a research team at Peking University, which has developed a method to significantly reduce defects in photoresists through advanced imaging techniques [2] - The ChuanTou Luzhou natural gas power generation project has completed the commissioning of its two units, with a total capacity of 1400 MW, expected to save 348,100 tons of standard coal and reduce CO2 emissions by 912,000 tons annually [2]
天海防务9月17日获融资买入2781.34万元,融资余额5.87亿元
Xin Lang Cai Jing· 2025-09-18 01:25
Core Viewpoint - Tianhai Defense experienced a decline of 1.07% in stock price on September 17, with a trading volume of 319 million yuan, indicating a potential shift in investor sentiment and market dynamics [1] Financing Summary - On September 17, Tianhai Defense had a financing buy amount of 27.81 million yuan and a financing repayment of 38.10 million yuan, resulting in a net financing outflow of 10.29 million yuan [1] - The total financing and margin trading balance for Tianhai Defense reached 587 million yuan, accounting for 5.51% of its market capitalization, which is above the 50th percentile level over the past year, indicating a relatively high financing level [1] - The company had no shares repaid in margin trading on September 17, with 21.25 million yuan in margin balance, also exceeding the 50th percentile level over the past year [1] Business Performance - For the first half of 2025, Tianhai Defense reported a revenue of 1.843 billion yuan, representing a year-on-year growth of 22.00%, and a net profit attributable to shareholders of 126 million yuan, reflecting a significant increase of 106.69% year-on-year [2] - The company's main business revenue composition includes 92.05% from shipbuilding and marine engineering, 1.97% from design services, and smaller contributions from energy and defense equipment sectors [1] Shareholder Information - As of September 10, the number of shareholders for Tianhai Defense was 130,100, a decrease of 5.47% from the previous period, while the average circulating shares per person increased by 5.78% to 12,661 shares [2] - Notable institutional holdings include the Guotai CSI Military Industry ETF as the third-largest shareholder with 16.03 million shares, and several other ETFs as new shareholders, indicating growing institutional interest [3]
央企担当铸就温暖防线——能源保供背后的故事
Zhong Guo Fa Zhan Wang· 2025-04-13 04:20
Core Viewpoint - The article emphasizes the critical role of energy supply in ensuring national economic stability and the commitment of state-owned energy enterprises to maintain stable coal and electricity supplies amid complex challenges in 2024, including extreme weather conditions [1][11]. Group 1: Energy Supply Challenges - The energy supply situation in 2024 is complicated, with significant pressure and uncertainty due to frequent extreme weather events affecting electricity supply safety [1]. - The National Energy Group has maintained a high coal production level of 50 million tons for 42 consecutive months, despite challenges such as mine shutdowns and adverse weather [3]. Group 2: Coal Production and Efficiency - The National Energy Group's coal production efforts are crucial for winter power supply, with significant contributions from coal mines like the Shen Dong Bu Lian Ta mine, which can support coastal power plants for extended periods [2]. - The average daily coal output at the Dong Open-pit Mine reached over 70,000 tons during peak winter supply periods, with a single-day maximum exceeding 90,000 tons [3]. Group 3: Transportation and Logistics - The Qinhuangdao Port serves as a vital hub for energy supply, with teams working in extreme cold to ensure coal transportation efficiency, including measures to prevent coal from freezing in transit [5][6]. - The introduction of an upgraded intelligent scheduling system has reduced response times for transportation adjustments during extreme weather to 15 minutes [5]. Group 4: Technological Innovations - The State Grid Corporation has implemented advanced technologies such as drones and AI to enhance power supply reliability and efficiency, particularly in monitoring and maintaining power lines in harsh conditions [7][10]. - The use of a digital twin factory model and IoT technology by China Coal North Machinery Company has improved supply chain management and production efficiency [8]. Group 5: Clean Energy Initiatives - The Southern Power Grid has significantly increased its clean energy capacity, with a 22% year-on-year increase in new energy generation capacity and a 36% increase in new energy output [10]. - The National Energy Group is also focusing on clean energy development, with efforts to ensure stable wind power generation in extreme weather conditions [11].