(活力中国调研行)探访世界坝体最高抽水蓄能电站：大号"充电宝"为华东电网注入绿色动能 在电网调节领域，电站通过机组调峰、调频、调相运行等方式消纳富余电能，配合核电、风电、"西电 东送"、特高压交流输电和大型煤电运行，消纳清洁能源，有效缓解地区负荷增长较快、电网供电压力 大等问题，为华东电网提供更加安全可靠、灵活高效、绿色清洁的电力保障。 句容抽水蓄能电站下水库大坝近景。(资料图)句容市委宣传部供图 句容抽水蓄能电站的机组厂房。(资料图)句容市委宣传部供图 中新网镇江10月21日电 (唐娟 孙权)20日，第二批"活力中国调研行"江苏主题采访团一行走进位于江苏 镇江的国网新源江苏句容抽水蓄能电站(简称"句容抽水蓄能电站")，近距离感知这座能源枢纽如何为华 东电网持续注入绿色动能与综合效益，见证中国能源结构转型的生动实践。 在经济大省江苏，电力保供正面临双重考验。数据显示，该省去年全社会用电量达8487亿千瓦时。今年 夏天，江苏电网用电负荷屡次突破历史极值，最高用电负荷达到1.55亿千瓦，较去年最高值同比增长 5.99%。同时，江苏新能源装机呈现高速增长态势，截至今年8月底，该省风电和光伏装机容量达 10861.6 ...

Core Viewpoint - The report highlights the financial performance and operational status of China Southern Power Grid Energy Storage Co., Ltd. for the first half of 2025, showcasing significant growth in revenue and net profit, alongside strategic developments in energy storage and hydropower sectors [1][2]. Financial Performance - The company's operating revenue for the first half of 2025 reached approximately CNY 3.30 billion, representing a year-on-year increase of 13.38% [2][14]. - Total profit amounted to approximately CNY 1.27 billion, reflecting a 24.92% increase compared to the same period last year [2]. - Net profit attributable to shareholders was approximately CNY 832.44 million, up 32.93% year-on-year [2][14]. - The company's total assets increased by 7.54% to approximately CNY 54.27 billion, while net assets rose by 2.94% to approximately CNY 21.97 billion [2]. Industry Overview - National electricity consumption in the first half of 2025 was approximately 4.84 trillion kWh, a growth of 3.7% year-on-year, with total installed power generation capacity reaching 3.65 billion kW, up 18.7% [3][4]. - The new energy storage sector is experiencing rapid growth, with installed capacity exceeding 80 million kW by June 2025, driven by policy shifts towards market-driven development [3][4]. Business Operations - The company operates a total installed capacity of 12.96 million kW, including 10.28 million kW from pumped storage, 654.2 MW from new energy storage, and 2.03 million kW from peak-shaving hydropower [4][5]. - Three new electrochemical storage projects were commissioned, contributing to the new energy storage capacity [5][6]. - The company is actively pursuing ten ongoing pumped storage projects, with plans for completion and commissioning within the year [6][7]. Strategic Initiatives - The company is focusing on enhancing operational efficiency and cost management, with a goal to improve key performance indicators such as profit margins and asset turnover [7][8]. - Emphasis is placed on technological innovation, with significant investments in research and development, leading to a 95.34% increase in R&D expenses [15][11]. - The company is also enhancing its ESG (Environmental, Social, and Governance) initiatives, achieving high ratings in sustainability assessments [12][13].

Core Insights - The article highlights the successful operation of the Jiangsu Jurong Pumped Storage Power Station, which serves as an efficient "charging treasure" for renewable energy, capable of both generating and storing electricity [1][2] Group 1: Operational Highlights - The power station consists of an upper reservoir, lower reservoir, water conveyance system, underground plant, and switch station, utilizing water to store gravitational potential energy during low electricity demand and converting it back to electrical energy during peak demand [1] - The station's fifth unit began commercial operation on July 22, contributing significantly to the province's electricity supply during peak summer demand, with an average daily water pumping of 5 hours and a monthly renewable energy absorption of approximately 33.75 million kilowatt-hours [1] - The construction of the station set three world records: the highest pumped storage dam, the highest asphalt concrete faced rock-fill dam, and the largest reservoir filling project [1] Group 2: Environmental Impact - The power station contributes to energy conservation by saving 140,000 tons of standard coal annually and reducing carbon dioxide emissions by approximately 349,000 tons, supporting the green and low-carbon development of the Yangtze River Delta [2] - The ecological restoration efforts during the construction included protecting rare plants and integrating the dam with the natural landscape, demonstrating a commitment to environmental sustainability from the outset [4] - The revitalization of the local ecosystem has led to the return of various wildlife species, including egrets and wild boars, indicating improved environmental conditions [4][6] Group 3: Community and Economic Development - The construction of the power station has transformed the local community, with residents relocating to facilitate the project, and has led to new economic opportunities, such as the development of eco-tourism and agriculture [3][6] - Local villagers are now exploring new agricultural ventures, including the cultivation of organic rice and the breeding of freshwater shrimp, which are expected to generate additional income for the community [6] - The project has inspired further studies and plans for additional pumped storage projects in the region, indicating a broader strategy for energy management and ecological restoration [7]

Core Viewpoint - The protection of the Qinling Mountains is crucial for sustainable development and the long-term prosperity of the Chinese nation, emphasizing the need for political and historical responsibility in ecological conservation [3][5][18]. Group 1: Ecological Protection Efforts - The Qinling Mountains are recognized as a vital ecological zone, often referred to as China's "central water tower," and their protection is essential for national interests and cultural heritage [3][5]. - The Shaanxi Provincial Commission for Discipline Inspection and Supervision is actively implementing measures to ensure compliance with ecological protection directives, focusing on accountability and rigorous enforcement [6][10]. - The province has established a comprehensive monitoring system utilizing satellite imagery and AI technology to oversee construction and human activities in the Qinling region, aiming for effective environmental management [11][12]. Group 2: Economic Development and Sustainability - The establishment of the State Grid Xinyuan Shaanxi Zhen'an Pumped Storage Power Station enhances the region's capacity to absorb renewable energy, contributing to local economic growth and environmental sustainability [13][14]. - The local government is promoting eco-friendly tourism and agricultural practices, such as tea cultivation, to create economic value while preserving the natural landscape [17][18]. - The integration of ecological protection with economic development strategies is seen as a pathway to transform natural resources into sustainable economic benefits, with initiatives like carbon trading and green loans being implemented [16][17]. Group 3: Regulatory and Supervisory Measures - The Shaanxi Provincial government has intensified regulatory measures to combat illegal construction and environmental degradation, focusing on the "five chaos" issues: illegal logging, building, dumping, mining, and hunting [9][10]. - A dual-check mechanism has been established to ensure accountability in environmental protection efforts, with significant oversight on local government actions and compliance with ecological regulations [18]. - The province has reported substantial progress in addressing environmental issues, with numerous cases of violations being investigated and rectified, reflecting a commitment to improving ecological quality [18].

Core Insights - China's pumped storage capacity has ranked first in the world for nine consecutive years, with Japan and the United States following in second and third place respectively [1] - The rapid growth of renewable energy sources like wind and solar power has led to significant decarbonization in the electricity system, but it also presents new technical challenges that require advanced solutions like pumped storage [1] - The development of pumped storage is crucial for supporting the transition to a new power system and achieving high-quality growth in the sector [1] Industry Development - As of the end of 2024, China's total installed capacity of pumped storage power stations is expected to reach 58.69 million kilowatts, with the East China region having the largest capacity [1] - The total approved and under construction capacity of pumped storage stations nationwide is approximately 200 million kilowatts [1] - The report highlights that China has a unique advantage in pumped storage resources, with a total potential capacity of about 160 million kilowatts identified across various provinces [2] Market Mechanism - Regions like Guangdong and Shandong have initiated pilot projects for pumped storage to participate in electricity market trading, indicating a shift towards market-oriented operations [2] - The current electricity market is evolving, with auxiliary service markets starting to develop, but challenges remain for pumped storage to fully engage in the market [2] - Recommendations include establishing differentiated pilot projects and improving market mechanisms to enhance operational capabilities and ensure orderly implementation of plans [2] Pricing Mechanism - A reasonable pricing mechanism is essential for the sustainable development of the industry, with the current two-part pricing policy supporting investment returns and rapid growth [3] - As the national electricity market reform progresses, there is a need to transition the pricing policy towards market-based mechanisms, potentially adopting a "benchmark capacity price + difference contract" model [3] - Emphasis on technological advancements is crucial for enhancing the competitiveness of pumped storage, with a focus on innovation and cost reduction throughout the project lifecycle [3]

Core Insights - The Guangdong Huizhou Pumped Storage Power Station has achieved significant operational milestones, with annual startup counts reaching 10,000, a 39.5% increase compared to the previous year, and annual operating hours exceeding 20,000, a 9.97% increase [1][2] - The power station plays a crucial role in load regulation and renewable energy consumption in the Guangdong-Hong Kong-Macao Greater Bay Area, with its capacity accounting for nearly one-quarter of the total operational pumped storage in the region [1][2] Group 1 - The Huizhou Pumped Storage Power Station has installed eight 300,000 kW large pumped storage units, with a total installed capacity of 2.4 million kW, ranking second nationally [1] - The station's operational data has set historical records, completing its annual startup count 77 days earlier and its operational hours 16 days earlier than last year [1] - The station's adjustment capacity reaches 4.8 million kW, allowing for flexible operation to meet power system demands, maintaining the highest frequency of operation in the Greater Bay Area [1] Group 2 - The demand for pumped storage stations has increased significantly due to the rising share of renewable energy in Guangdong's power system [2] - During the peak summer period, Guangdong's maximum load reached 164 million kW, with 19.36 million kW of pumped storage adjustment capacity providing over 10% support for the record load [2] - The Huizhou Pumped Storage Power Station has adjusted over 3.7 billion kWh of electricity this year, equivalent to the electricity needs of 2.93 million households for seven months [2]

Core Viewpoint - The recent capital increase and share expansion project of State Grid Xinyuan Holdings Co., Ltd. raised 36.5 billion yuan, marking the largest cash fundraising in state asset rights trading history, aimed at hydropower energy storage project construction, potentially leveraging over 300 billion yuan in project investments [1] Group 1: Investment and Market Dynamics - The investment round attracted major players such as China National Petroleum, China Insurance, and several financial institutions, indicating strong confidence in the future of the hydropower energy storage sector [1] - The hydropower energy storage market is projected to grow significantly, with installed capacity expected to reach over 62 million kilowatts by 2025 and approximately 120 million kilowatts by 2030 [1][2] - By the end of 2024, the total investment in operational and under-construction hydropower energy storage projects in China is estimated to reach 2 trillion yuan [1] Group 2: Role of State Grid and Southern Power Grid - State Grid and Southern Power Grid are the largest operators and investors in the hydropower energy storage sector, with State Grid operating 75 stations with a total capacity of 94.04 million kilowatts, the highest globally [2] - Southern Power Grid operates 7 hydropower energy storage stations in the Greater Bay Area with a total capacity of 10.28 million kilowatts and has 9 under-construction stations with a total capacity of 10.8 million kilowatts [3] Group 3: Policy and Economic Factors - The introduction of a two-part pricing policy for hydropower energy storage has stimulated investment, ensuring returns for investors and encouraging project development [4][6] - The average construction cost for hydropower energy storage projects has increased significantly, now ranging from 8,000 to over 10,000 yuan per kilowatt due to challenges in project site selection [6] Group 4: Future Energy System and Flexibility - Hydropower energy storage is crucial for China's energy transition and the construction of a new power system, providing essential flexibility to manage the volatility of renewable energy sources [7][10] - Compared to other energy storage solutions, hydropower energy storage offers superior cost efficiency, safety, and technical maturity, making it a preferred choice for balancing renewable energy generation [9][10]

Core Insights - China's pumped storage capacity has ranked first in the world for nine consecutive years, with Japan and the United States following in second and third place respectively [1] - The rapid growth of renewable energy sources like wind and solar has led to significant decarbonization in the power system, but it also presents new technical challenges that require advanced solutions like pumped storage [1] - The development of pumped storage is crucial for supporting the transition to a new power system and achieving high-quality growth in the sector [1] Group 1: Industry Development - As of the end of 2024, China's total installed capacity of pumped storage power stations is expected to reach 58.69 million kilowatts, with the East China region having the largest capacity [1] - The total approved and under-construction capacity of pumped storage power stations nationwide is approximately 200 million kilowatts [1] - The report indicates that there are about 160 million kilowatts of potential pumped storage sites across the country, considering various geographical and technical factors [2] Group 2: Market Mechanisms - The current two-part pricing policy for pumped storage has positively impacted investment returns and industry growth, but a gradual transition to market-based pricing is necessary [3] - The establishment of a "capacity benchmark price + difference contract" mechanism based on resource zoning is suggested to facilitate the transition to market pricing [3] - The development of a market-oriented operation mechanism for pumped storage is a key focus, especially in regions like Guangdong and Shandong that are piloting market transactions [2] Group 3: Technological and Regulatory Recommendations - Continuous technological innovation and investment in R&D are essential for enhancing the competitiveness of pumped storage in the new power system [3] - The implementation of a regular scheduling mechanism for optimizing provincial layouts from 2024 to 2028 is recommended to ensure orderly development [2] - The Energy Law emphasizes the need for reasonable planning and orderly development of pumped storage stations to meet future demands [2]