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国际标准《低温环境下(-50℃至-10℃)无人机用氢气瓶阀的技术要求及试验方法》在哈尔滨启动
Zhong Guo Dian Li Bao· 2025-09-23 08:03
据悉,该标准主要针对低温环境下无人机用氢气瓶阀特性,规范了在低温环境下测试无人机系统氢气瓶 阀的技术要求,并建立统一的性能测试方法和评估标准,为无人机用氢气瓶阀的设计、制造、检测和应 用提供权威依据。此次标准启动还邀请了IEEE中国办事处高级专家及知名高校、电网企业、设备厂家 等专业人员参与,对标准标题、大纲、相关定义、标准引用等内容提出建议,并关注其与其他标准的区 别与联动,共同推动无人机系统在电力行业特殊环境下的应用。 9月5日,由国网黑龙江电科院牵头编制的国际标准IEEE 1958.5《低温环境下(-50℃至-10℃)无人机用 氢气瓶阀的技术要求及试验方法》在哈尔滨启动。该标准是国网黑龙江省电力公司首次牵头获批无人机 相关的国际标准,标准的启动标志着该省在无人机领域技术创新和标准化能力方面迈上新的台阶。 近年来,无人机在电力行业线路巡检与勘测设计两大领域广泛应用,但受北方冬季极端低温环境影响, 无人机用氢气瓶阀存在易破损、易泄漏的问题。目前,国际上仍缺乏低温环境下无人机用氢气瓶阀的技 术要求及试验方法标准,限制了氢能无人机在极寒条件下的应用。为此,国网黑龙江电科院历经两年多 时间立项筹备该标准。 ...
世界最大,中国能建葛洲坝机电出品!
Zhong Guo Dian Li Bao· 2025-09-23 05:06
Core Insights - The world's largest hoisting vertical ship lift, developed by China Energy Construction Corporation's Gezhouba Machinery Company, has been successfully delivered, marking a new height for "Chinese intelligence" in the field of hoisting vertical ship lifts [1][5] Group 1: Project Overview - The Guangxi Baise Water Conservancy Hub Navigation Facility Project is a strategic initiative aimed at resolving the 20-year navigation interruption of the Youjiang River, contributing to the construction of the Western Land-Sea New Corridor and the Pearl River-Xijiang Economic Belt [3] - The project employs a combination mode of "upstream ship lock + long-distance intermediate channel + downstream ship lift," designed to accommodate a navigation standard of 2×500-ton fleets while also considering 1000-ton single vessels, with an annual one-way passing capacity of 6.02 million tons [3] Group 2: Technical Specifications - The Baise ship lift is currently the largest under construction globally and features the longest hoisting chamber in the world, with dimensions of 144 meters in length, 17.2 meters in width, and 11 meters in height, surpassing the Three Gorges ship lift [3] - The effective water area within the hoisting chamber measures 130 meters in length, 12 meters in width, and 3.9 meters in depth, allowing for simultaneous accommodation of two 1500-ton vessels for one-time lifting and lowering [3] Group 3: Engineering Achievements - The main hoisting machine, which serves as the "power hub" of the ship lift, consists of the lifting system, counterweight system, and hoisting chamber, and has received 8 national authorized patents and applied 24 proprietary technologies during its design and manufacturing [5] - The successful delivery of the main hoisting machine will accelerate the construction of the Guangxi Baise Water Conservancy Hub Navigation Facility Project, facilitating the opening of the nearest waterway to the sea for Yunnan and promoting the development of the Pearl River-Xijiang Economic Belt [5]
基于套利视角看电力市场规则完善方向
Zhong Guo Dian Li Bao· 2025-09-23 00:55
Core Viewpoint - The article emphasizes the need to distinguish between normal market strategy behaviors and illegal arbitrage in the electricity spot market, advocating for improved market rules and regulations to enhance market integrity and efficiency [1][3][12]. Group 1: Understanding Arbitrage - Arbitrage is defined as a risk-free profit opportunity, which is rare in efficient markets; persistent arbitrage opportunities often indicate flaws in market rules or systems [2][3]. - Two types of arbitrage are identified: "risk-free arbitrage," which exploits market rule deficiencies, and "compliant arbitrage," which utilizes natural price differences to enhance market efficiency [2][3]. Group 2: Market Behavior and Regulation - The article discusses the importance of recognizing normal strategic behaviors in the market, such as users adjusting their electricity declarations based on price predictions, which should not be overly interfered with [4][5]. - It highlights that excessive intervention in normal market behaviors can hinder market efficiency and price discovery [5][12]. Group 3: Improving Market Rules - The need for refining electricity market rules to eliminate risk-free arbitrage opportunities is stressed, with examples provided on how current rules may inadvertently allow such practices [6][7][8]. - Recommendations include aligning demand response compensation standards with market price ceilings to prevent arbitrage and ensure fair pricing [8][10]. Group 4: Market Mechanism Coordination - The article points out that misalignment between price mechanisms can lead to arbitrage opportunities, particularly in the context of long-term and spot market price differences [9][10]. - It suggests that improving the coordination of pricing mechanisms and enhancing transparency in market information can mitigate risks associated with arbitrage [10][11]. Group 5: Long-term Market Development - The article advocates for accelerating the marketization of the electricity sector and fostering technological innovation to address various coordination issues within the market [10][11]. - It emphasizes the importance of a well-designed market structure that minimizes arbitrage opportunities while promoting fair competition and resource allocation [12].
全天“负电价”!四川电力现货市场什么情况?
Zhong Guo Dian Li Bao· 2025-09-23 00:19
Group 1 - The core point of the article is that the Sichuan electricity spot market has entered a trial settlement phase, resulting in a full day of negative electricity prices, with the highest clearing price at -34.87 yuan/MWh and the lowest at -50 yuan/MWh, indicating a significant supply-demand imbalance [1][2][7] - The main reason for the negative electricity prices is that supply significantly exceeds demand, with the average electricity supply-demand ratio in Sichuan from September 19 to 21 being 1.44, 1.48, and 1.51 respectively [2][5] - The electricity supply in Sichuan is primarily hydropower, which constitutes over 60% of the installed capacity, and recent abundant water inflow has led to full reservoir conditions, prompting hydropower stations to declare negative prices to alleviate reservoir pressure [1][2] Group 2 - Negative electricity prices reflect the challenges faced by the integration of non-regulated renewable energy sources in Sichuan, where nearly 50% of the installed capacity consists of renewable energy sources that are not adjustable [5][6] - The occurrence of negative prices demonstrates that the market pricing mechanism is functioning effectively, providing price signals that encourage demand response and resource allocation [5][6] - There is an urgent need to establish a full capacity compensation mechanism to ensure that conventional power sources can maintain adequate revenue amidst the rapid growth of renewable energy installations [6][7]
中国华电,首个落地!
Zhong Guo Dian Li Bao· 2025-09-22 08:20
Core Viewpoint - China Huadian Group has successfully completed the carbon footprint accounting for its first green hydrogen product, establishing a comprehensive carbon footprint labeling certification scheme for green hydrogen products, which aligns with national carbon labeling certification initiatives [1] Group 1: Project Overview - The project is based on a 25,000 kW wind power off-grid energy storage hydrogen production integration project in Tieling, Liaoning [1] - The produced high-purity hydrogen gas has a purity level of 99.999%, meeting both domestic and international green product standards [1] Group 2: Carbon Footprint Accounting - Huadian Carbon Asset Company led the entire carbon footprint accounting process, ensuring that the verification results objectively reflect the project's low-carbon level [1] - The project serves as a practical example for green hydrogen products, which are currently not included in the first batch of product pilot directories for carbon labeling certification in China [1] Group 3: Strategic Importance - This initiative is a proactive response to the national carbon labeling certification construction direction and supports the "dual carbon" goals of China Huadian [1] - The establishment of a foundational database for green hydrogen carbon footprints will provide critical data support for future green product-related business and market demand [1]
绿动中国五年路 能源答卷映初心——我国能源行业绘就降碳减污扩绿新图景
Zhong Guo Dian Li Bao· 2025-09-22 07:51
Group 1: Core Insights - China aims to peak carbon emissions before 2030 and achieve carbon neutrality by 2060, as announced by President Xi Jinping [1] - The country has built the world's largest and fastest-growing renewable energy system, with one-third of electricity consumption coming from green energy [1] Group 2: Energy Structure Transformation - China's energy structure is transitioning from coal-dominated to a diversified and cleaner model, with a multi-energy complementary system forming [3] - The share of coal-fired power generation capacity and output has decreased by 13.5 percentage points and 4.7 percentage points, respectively, over the past four years [3] Group 3: Renewable Energy Development - The share of renewable energy generation capacity has increased from 40% to around 60% in the past five years, with wind and solar power installations reaching unprecedented levels [4] - Significant advancements in power grid construction have been made, including the ±800 kV Hami-Chongqing HVDC project and the world's largest clean energy base transmission project [4] Group 4: Technological Innovation - Energy companies have focused on key areas to enhance core technology and equipment, achieving significant breakthroughs in self-developed technologies [6] - The installed capacity of new energy storage has grown nearly 30 times in five years, reaching approximately 95 million kilowatts [6] Group 5: Hydrogen Energy Development - The hydrogen energy industry is gradually maturing, with projects like the "electric-hydrogen coupling" bus system and green hydrogen production initiatives [7] - By 2024, China's hydrogen production and consumption scale is expected to exceed 36 million tons, leading the world [7] Group 6: Ecological and Energy Synergy - Energy companies are integrating energy development with ecological protection and rural revitalization, enhancing economic, environmental, and social benefits [9] - Projects like "photovoltaic + ecology" and clean heating initiatives have significantly improved local environments and community well-being [9] Group 7: Overall Progress - The energy sector has undergone a profound green transformation, demonstrating the principle that "lucid waters and lush mountains are invaluable assets" [10] - The commitment to continue advancing in the dual carbon era is evident, with a focus on innovation and practical actions [10]
发挥电价信号作用 支撑“双碳”实践走深走实
Zhong Guo Dian Li Bao· 2025-09-22 02:29
Core Viewpoint - The energy and electricity sector in China is a key battleground for achieving the "dual carbon" goals, with a continuous acceleration in green development and the need for an improved electricity pricing mechanism to support this transition [1] Group 1: Market Price Adaptation - The electricity pricing reform has been accelerating over the past five years, enhancing the pricing mechanisms across generation, transmission, and consumption stages [2] - In the generation stage, coal power has fully liberalized the on-grid electricity price, establishing an innovative "capacity + energy" pricing mechanism to support the transition of coal power to a flexible resource [2] - The reform has released clear price signals that significantly enhance the optimization of resource allocation and the effectiveness of energy green transition [2] Group 2: Electricity Pricing System Improvement - There are higher demands for deepening electricity pricing reforms to support the carbon peak and carbon neutrality goals [3] - The pricing signals for optimizing the power generation structure need improvement, including setting reasonable bidding limits and exploring pricing mechanisms that encourage accurate cost reporting [3] - A two-part pricing mechanism combining capacity price compensation and market energy competition is suggested for coal, gas, and new energy storage [3] Group 3: Transmission and Distribution Pricing Mechanism - The transmission and distribution pricing mechanism needs to be improved to adapt to the efficient utilization of clean resources [4] - Implementation of a two-part or single capacity pricing mechanism across provinces is necessary to support regional collaborative green transitions [4] - The pricing mechanism should reflect the role of cross-regional projects in power transmission and ensure fair cost allocation among stakeholders [4] Group 4: Consumption Pricing Mechanism - The leverage of electricity prices to guide low-carbon consumption needs to be activated [4] - A tiered pricing policy for key industries based on advanced energy consumption and carbon emission standards is recommended to enhance energy efficiency and reduce carbon emissions [4] - The optimization of residential electricity pricing mechanisms is essential to encourage low-carbon consumption among households [4] Group 5: Supporting Policies - Supporting policies are needed to maximize the effectiveness of electricity price signals [5] - Strengthening the responsibility for renewable energy consumption and exploring the application of green electricity and certificates in supply chain management are crucial [5] - The construction of a carbon market should be advanced to reflect the environmental value of carbon elements and enhance the price transmission effect [6]
专家谈“双碳”
Zhong Guo Dian Li Bao· 2025-09-22 02:29
2013年以来,随着"大气十条"的实施,大气污染防治领域实现历史性变革,主要大气污染物排放量迅速 下降,与经济活动和能源消费逐步脱钩。"十四五"以来,减污降碳协同增效成为核心路径,预计2060年 全国PM2.5浓度可从2020年的33微克/立方米降至25微克/立方米。 中国科学院院士、清华大学教授 欧阳明高 交通领域减碳在实现"双碳"目标的过程中占有重要地位。新能源汽车带动了三大革命:动力电动化、能 源低碳化、系统智能化。动力电动化指的是电动汽车革命,核心是混合动力、纯电动动力和氢燃料电池 动力等新能源动力系统。能源低碳化就是向可再生能源转型、集中式发电与分布式能源相结合、用氢气 和电池两种主要储能方式储存间歇式能源等。系统智能化的重点内容是将电动汽车作为智能化用能和储 能终端,利用能源互联网、区块链等技术,聚合数以亿计的分布式电动汽车,构建虚拟电厂,发展车网 互动的智慧新能源。 中国科学院院士、西安交通大学能源与动力工程学院教授 郭烈锦 氢和电的最大差别是电只是一个能量载体,自身不能存储,需要依靠其他方式才能储存;而氢既是能量 载体,又是物质转化的单元。这种秉性决定了在未来的二次能源体系中,氢应被作为主体来 ...
电碳协同是实现“双碳”目标重要路径——访国网能源研究院有限公司企业战略研究所副所长张晓萱
Zhong Guo Dian Li Bao· 2025-09-22 02:24
Core Viewpoint - The article emphasizes the importance of "electric-carbon synergy" as a crucial pathway for achieving energy security and climate goals in the context of China's dual carbon targets, highlighting the need for a coordinated approach to power consumption and carbon reduction [1][2]. Group 1: Electric-Carbon Synergy - Electric-carbon synergy is identified as a key mechanism for achieving carbon reduction targets, with the power system serving as the core infrastructure for deep decarbonization [2][3]. - The construction of a new power system dominated by renewable energy is essential for providing reliable and economically viable green electricity, which is fundamental for the low-carbon transition in various sectors such as industry, transportation, and construction [2][3]. - The synergy between carbon markets, electricity markets, and green electricity trading is crucial for creating a policy framework that encourages diverse stakeholders to participate in emission reduction efforts [2][4]. Group 2: Development Pathways - The development pathways for electric-carbon synergy are becoming clearer, with increasing electricity consumption driven by economic growth, electrification, and the rise of emerging industries like artificial intelligence and electric vehicles [4][5]. - A dynamic balance-based roadmap for electricity carbon reduction is necessary, focusing on safety, low-carbon goals, and economic feasibility to maintain overall system stability [4][5]. - The integration of electric-carbon accounting is vital, with the power sector playing an increasingly significant role in national carbon emission statistics and the need for interconnected carbon accounting data [4][5]. Group 3: Industry and Market Mechanisms - The electric-carbon synergy is seen as a driving force for the transition towards "new energy and green industry," with renewable energy, energy storage, and hydrogen energy being key technologies [3][5]. - The collaboration between industry and energy structures is essential for optimizing the spatial matching and value closure of clean energy and industrial development [5]. - The promotion of digital transformation alongside green initiatives can enhance the green transition of the power system while supporting the reduction of emissions in new infrastructure like data centers and intelligent computing centers [5].
一文读懂零碳园区
Zhong Guo Dian Li Bao· 2025-09-22 02:01
Core Viewpoint - The establishment of zero-carbon parks is a crucial step towards achieving carbon neutrality goals, serving as experimental grounds for decarbonization efforts in various sectors [1][2]. Group 1: Basic Concepts - Zero-carbon parks are defined as areas where carbon emissions from production and daily activities are reduced to "near zero" levels, with the potential to achieve "net zero" conditions through planning, design, technology, and management [2]. Group 2: Construction Focus - Accelerate the transformation of energy structure in parks by developing green electricity direct connection and clean heating systems [3]. - Promote energy conservation and carbon reduction by establishing management systems and encouraging the construction of zero-carbon factories [3]. - Optimize industrial structure by developing low-energy, low-pollution, and high-value-added industries [3]. - Enhance resource conservation and recycling within parks, establishing waste recycling networks [3]. - Upgrade infrastructure to support green buildings and transportation systems [3]. - Support the application of advanced low-carbon technologies and foster integration with industry [4]. Group 3: Evaluation Standards - National-level zero-carbon park construction indicators include: - Energy consumption carbon emissions below 0.2 tons per ton of standard coal for parks consuming 200,000 to 1,000,000 tons [5][6]. - Clean energy consumption ratio exceeding 90% [6]. - Industrial solid waste recycling rate above 80% [6]. Group 4: Major Goals - By 2025, initiate the selection process for zero-carbon park construction [7]. - By 2030, aim to establish over 20 zero-carbon industrial parks and develop long-term mechanisms for zero-carbon development [8][9]. - By 2027, strive to create a batch of zero-carbon industrial parks with replicable experiences in carbon reduction and management [9].