新能源消纳
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现货市场加速建设,专家呼吁扩大价差应对高比例新能源
Zhong Guo Neng Yuan Wang· 2025-09-17 07:58
Core Insights - The construction of China's electricity market has made significant progress over the past decade, but challenges remain, particularly with the rapid expansion of renewable energy capacity, which has led to issues such as "abandoned solar power" during midday and supply pressure during peak hours [1] - The recent 2025 Electricity Market Autumn Forum highlighted the consensus on accelerating nationwide coverage of the spot market and promoting high-quality development of renewable energy as key solutions to current challenges [1] Group 1: Spot Market Development - China's electricity spot market has entered a critical phase, with seven provincial markets officially operational and others in trial phases, forming a basic framework for a unified market with two-level operations [2] - The inter-provincial spot market has been established, covering 26 provinces and over 6,000 power generation entities, which has helped alleviate supply pressure during peak electricity demand periods [2] Group 2: Renewable Energy Integration - The spot market has begun to show its guiding role in renewable energy consumption, with inter-provincial market transactions for renewable energy reaching 7.75 billion kilowatt-hours, accounting for 36.5% of total transactions from January to August 2025 [3] - In Zhejiang, the first provincial spot market in the Yangtze River Delta, market mechanisms have effectively guided users to shift their electricity consumption, increasing renewable energy consumption by 100 million kilowatt-hours since 2025 [3] Group 3: Challenges and Mechanism Reforms - The continuous increase in renewable energy's share has changed the operational characteristics of the electricity system, with renewable energy capacity exceeding 46% nationally in the first half of 2025 [4] - The occurrence of negative electricity prices has become a common issue in high renewable penetration areas, with frequencies reaching 11%-14% in regions like Shandong and Shanxi during winter and spring [5] - Experts suggest that optimizing mechanisms rather than administrative interventions is necessary to address the challenges posed by high renewable energy penetration [5] Group 4: Recommendations for Market Improvement - Expanding the price difference in the spot market is a key recommendation, with suggestions to raise the price cap significantly to better reflect the time value of electricity and encourage investment [6] - A multi-layered market system is proposed, including energy markets, capacity markets, and ancillary service markets, to ensure long-term supply capacity and incentivize flexible resources [6] - The integration of renewable energy into the market and the collaboration between inter-provincial and intra-provincial markets are seen as important directions for future development [6]
全球最大“超级电容+锂电池”混合储能电站并网!
中关村储能产业技术联盟· 2025-09-15 10:19
Core Viewpoint - The successful grid connection of the Shanxi Pingshan 100MW independent frequency modulation power station project marks a significant advancement in the application of supercapacitor technology, showcasing the company's leadership in the market and the reliability of large-scale applications [2][4]. Group 1: Project Overview - The project has a total scale of 100MW, including 58MW/30s of supercapacitor energy storage, with a total investment of 670 million yuan and occupies an area of 25.24 acres [2]. - It is the largest application of supercapacitors in a 100MW independent frequency modulation power station globally and also the largest single "supercapacitor + lithium battery" hybrid energy storage power station in the world [2][4]. Group 2: Technical Features - The system employs a "supercapacitor + lithium battery" hybrid architecture, achieving 100MW rapid frequency modulation and 42MWh peak shaving capability, addressing the slow response and high error rates of traditional frequency modulation [3]. - The system can operate stably even in extreme conditions of -40℃, with significantly lower lifecycle costs compared to other technical solutions, and enhanced safety compared to traditional methods [4]. Group 3: Comprehensive Service - The company provides a full-process coverage and one-stop delivery from power station design, equipment supply, construction, to debugging and grid connection, ensuring efficient integration of core technology and overall engineering [4]. Group 4: Regional Impact - The project is located in Pingshan County, which has abundant sunlight and water resources, making it an ideal site for clean energy development. The local clean energy total installed capacity reaches 2,048,000 kW, with a new energy output value of 535 million yuan, accounting for 38% of the GDP [4]. - Upon full operation, the power station is expected to reduce carbon emissions by 1.15 million tons annually, reinforcing Pingshan's position in clean energy and supporting balanced economic development and ecological protection in the region [4]. Group 5: Company Background - Established in 2009, the company is a national-level specialized and innovative "little giant" enterprise, a member of the new energy storage innovation consortium of central enterprises, and ranks among the industry leaders in revenue and production scale [6]. - The company possesses core technologies in key materials, single units, modules, and system integration for supercapacitors, having undertaken numerous national and provincial research projects, achieving multiple technological breakthroughs and research results [6].
公用事业行业周报:山东新能源竞价结果分化,输配电价新规助力消纳破局-20250915
Changjiang Securities· 2025-09-14 23:31
Investment Rating - The report maintains a "Positive" investment rating for the utility sector [8] Core Insights - The bidding results for wind and solar energy in Shandong for 2025 show a clear differentiation, with wind energy having a selected volume of 5.967 billion kWh and a clearing price of 0.319 CNY/kWh, while solar energy has a selected volume of 1.248 billion kWh and a clearing price of 0.225 CNY/kWh [2][11] - The new pricing mechanism for grid connection capacity is expected to facilitate the consumption of renewable energy, promoting a win-win situation for the grid, power generation companies, and users [2][11] Summary by Sections Bidding Results - The wind energy projects in Shandong are limited in number but have a large allocated bidding volume, with a rational bidding price close to the upper limit, indicating stable profit expectations [2][11] - The solar energy projects face intense competition, leading to a clearing price that is under pressure, reflecting a more challenging market environment [2][11] Pricing Mechanism - Recent regulatory changes propose a shift to a single capacity-based pricing model for grid connection, which is expected to streamline the pricing mechanism for nearby consumption projects [2][11] - The new pricing structure aims to eliminate additional fees for energy delivered to the grid, thus enhancing the economic viability of renewable energy projects [2][11] Investment Recommendations - The report suggests that the ongoing reforms in the electricity market are revitalizing power operators, with a focus on high-quality development in the renewable energy sector [2][11] - Specific companies recommended for investment include Huaneng International, Datang Power, and China Power, among others, due to their strong positions in the transitioning energy landscape [2][11]
车网互动关键是生态共建
Zhong Guo Qi Che Bao Wang· 2025-09-13 10:27
Core Insights - The 2025 China Automotive Industry Development (Teda) International Forum was held in Tianjin, focusing on the integration and development of the Internet of Vehicles (IoV) [1] Group 1: V2G Development - Current V2G (Vehicle-to-Grid) development is supported by national policies and pilot projects, but automotive companies are not sufficiently engaged [3] - V2G is expected to progress through several stages, with the first stage (V2G 1.0) seeing rapid promotion and pilot projects by 2025, leading to over 1 million V2G vehicles by 2027 [3] - The second stage (V2G 2.0) will address challenges in grid capacity and market absorption from 2028 to 2030, requiring a coordinated development with virtual power plants [3] Group 2: Charging Infrastructure - By 2025, China's electric vehicle ownership is projected to reach 45 million, with 20 million charging stations, covering the charging needs of electric vehicles [4] - The expected charging volume by the end of 2025 is 80 billion kWh, accounting for about one-eighth of the total household electricity consumption in the country [4] Group 3: Energy System Challenges - The new energy system is transitioning from quantitative to qualitative changes, with increasing pressure on power supply stability due to the growing penetration of renewable energy [4] - To maintain grid stability, stronger regulatory capabilities are needed, and vehicle-grid interaction will play a crucial role [4][6] Group 4: Future Vision - By 2035, a highly efficient charging and discharging network is anticipated, with every vehicle and charging station upgraded to V2G functionality [5] - The ultimate goal of vehicle-grid interaction is to innovate energy governance models, enabling electric vehicles to act as smart cells within the new power system [5] Group 5: Collaborative Ecosystem - The current vehicle-grid interaction relies heavily on policy mechanisms and subsidies, with limited participation from vehicle owners and manufacturers [6] - A collaborative ecosystem involving upstream and downstream companies, including grid operators and equipment manufacturers, is essential for building a win-win scenario [6] Group 6: Strategic Development - Future ecological development should focus on implementing a multi-dimensional transportation strategy, integrating air and ground transport, and advancing key technologies in new energy and intelligent networking [7] - Accelerating the large-scale application of vehicle-grid integration will unlock new value in energy interaction, providing new opportunities for the electric vehicle industry amid energy transition [7]
架起空中“能源丝路”——来自新疆的调查
Jing Ji Ri Bao· 2025-09-12 22:02
Core Viewpoint - Xinjiang has become a crucial part of China's energy strategy due to its abundant energy resources, including coal, solar, and wind power, which are among the highest in the country. The region's energy development has significantly contributed to the national energy structure transformation since the launch of the "Xinjiang Power Transmission" initiative in 2010 [1][2]. Energy Resources - Xinjiang has confirmed coal reserves of 4.5 trillion tons, accounting for 25% of the national total and approximately 40% of the predicted total coal resources. Solar energy resources are about 4.2 billion kilowatts, representing 26.9% of the national total, while wind energy resources are around 1 billion kilowatts, making up 18% of the national total [1]. - The region's energy resources are likened to "rich mines," providing strong support for energy development [1]. Power Transmission Infrastructure - Since the initiation of "Xinjiang Power Transmission" in 2010, Xinjiang has established five power transmission channels, increasing the number of provinces receiving electricity from 7 to 22, with a cumulative power transmission exceeding 940 billion kilowatt-hours [1][4]. - The first significant project, the Hami-Dunhuang 750 kV transmission line, was completed in 2010, marking the start of Xinjiang's integration with the national grid. The Hami-South Zhengzhou ±800 kV UHVDC project, operational since 2014, has consistently delivered over 40 billion kilowatt-hours annually for six years [3][4]. Technological Advancements - The construction of the world's highest voltage and largest capacity UHVDC project, the Zhundong-Wannan ±1100 kV, was completed in 2019, overcoming numerous global challenges and setting new standards in equipment technology [3]. - New technologies, including drones and digital twins, have been applied to enhance operational efficiency in power transmission stations, tripling the efficiency of maintenance work [3]. Energy Transmission Capacity - By the end of 2024, Xinjiang's power transmission capacity is expected to reach 1,267 billion kilowatt-hours, leading the northwest region. The ongoing construction of the Xinjiang (Southern) Power Transmission to Sichuan and Chongqing project will significantly enhance the power transmission capacity from Southern Xinjiang [4][7]. Energy Grid Development - Xinjiang has built 32 750 kV substations and 98 transmission lines, totaling 12,300 kilometers, making it the province with the most extensive 750 kV grid in China. This development has improved the reliability and capacity of power supply across the region [7]. - The region's energy grid has formed five 750 kV ring networks, enhancing the overall power supply capability and reliability [6][7]. Renewable Energy Integration - As of mid-2023, Xinjiang's total installed power capacity reached 219 million kilowatts, with renewable energy accounting for 128 million kilowatts, representing 58.45% of the total. The region has seen a 6.57% year-on-year increase in cumulative power transmission [11]. - The integration of innovative storage technologies has significantly improved the utilization rate of renewable energy, with the establishment of several large-scale energy storage projects [10][11]. Economic Impact - The "Xinjiang Power Transmission" initiative has not only supported national energy supply but also injected strong momentum into Xinjiang's economic and social development, driving investments in wind, solar, and coal power industries [12]. - The establishment of specialized industrial parks in energy-rich areas aims to create an integrated layout of "power, grid, production, and chain," reducing initial investment burdens for enterprises [13].
【新华财经调查】吉电股份双向承压 探索非电利用推进消纳
Xin Hua Cai Jing· 2025-09-12 07:11
Core Viewpoint - The rapid growth of installed capacity in renewable energy generation in Jilin Province is facing challenges due to insufficient local consumption capacity and external transmission channels, which may lead to a decline in renewable energy utilization and affect project profitability [2][3]. Group 1: Company Performance - Jilin Electric Power Co., Ltd. (吉电股份) reported a year-on-year decrease in electricity sales by 1.33%, a drop in electricity prices by 3.93%, and a decline in operating revenue by 4.63%, resulting in a year-on-year decrease in net profit attributable to shareholders by 33.72% in its 2025 semi-annual report [2]. - The company's gross profit margins for wind and solar products are projected to decline by 0.14 and 5.15 percentage points respectively in 2024 compared to the previous year, with a year-on-year decrease of 7.8 and 4.82 percentage points in the first half of this year [3]. Group 2: Industry Trends - The installed capacity of wind power increased by 22.7% and solar power by 54.2% year-on-year, while the overall electricity consumption grew by only 3.7%, indicating an imbalance between supply and demand that impacts the profitability of power generation companies [3]. - The National Development and Reform Commission and the National Energy Administration have initiated reforms to promote market-oriented pricing for renewable energy, which may increase price volatility and competitive pressure in the electricity market [3]. Group 3: Strategic Initiatives - The company is focusing on the "Renewable Energy +" model and green hydrogen-based energy, aiming to enhance renewable energy capacity and explore downstream applications in green ammonia and green methanol production [5][6]. - The Daan Wind-Solar Integrated Green Hydrogen Project, with a total investment of 5.956 billion yuan, is designed to produce 180,000 tons of green ammonia annually and is currently in trial operation [6]. - The company plans to invest 4.92 billion yuan in a 200,000-ton green methanol innovation demonstration project [6]. Group 4: Market Outlook - The global demand for green methanol is expected to exceed 300 million tons by 2050, with China's planned production capacity surpassing 10 million tons [7]. - The green hydrogen-based energy market is anticipated to grow rapidly, driven by carbon neutrality policies and advancements in core technologies, although challenges such as high production costs and lack of pricing mechanisms remain [7].
四办法齐发!输配电价改革关键举措来了,影响你我用电
Zhong Guo Dian Li Bao· 2025-09-12 06:28
Core Viewpoint - The recent reforms in electricity pricing, particularly in transmission and distribution, are seen as a crucial step in enhancing cost efficiency and operational decision-making for market participants and end-users [1] Group 1: Transmission and Distribution Pricing Reforms - The National Development and Reform Commission has released multiple draft guidelines for revising transmission and distribution pricing, marking a significant regulatory overhaul in China's electricity pricing system [1] - This simultaneous release of four draft guidelines is viewed as a key initiative in the fourth regulatory cycle of transmission and distribution pricing reform [1] Group 2: Enhancing Renewable Energy Consumption - The draft guidelines focus on two dimensions: domestic consumption and inter-provincial transmission, aiming to eliminate bottlenecks and facilitate the integration of renewable energy [2] - A proposed single capacity pricing model for grid companies servicing new energy projects is expected to reduce costs and encourage investment in integrated projects, promoting local consumption of renewable energy [2] - The guidelines also suggest a new pricing mechanism for inter-provincial transmission projects that primarily transport clean energy, which could enhance the flow of electricity from resource-rich western regions to load centers in the east [2] Group 3: Stabilizing Electricity Costs for Users - The draft emphasizes the need for a balanced cost-sharing mechanism among users, ensuring fair distribution of costs based on consumption while maintaining transparency in pricing [3] - Measures are proposed to stabilize electricity prices, which would support businesses in planning their energy usage and foster a competitive environment for high-energy-consuming industries [3] Group 4: Strengthening Cost Regulation for Grid Companies - The draft guidelines aim to establish a more rigorous cost auditing system for grid companies, ensuring that costs are justified and not passed on to end-users unnecessarily [4] - By eliminating unrelated costs and refining cost accounting standards, the reforms are designed to ensure that funds are allocated effectively towards critical infrastructure projects, enhancing the grid's capacity to integrate renewable energy [4]
中电联监事长潘跃龙:打造“有为政府”与“有效市场”相结合的“甘肃样板”
Zhong Guo Dian Li Bao· 2025-09-11 06:40
Core Insights - The Gansu electricity spot market has successfully transitioned from a pilot phase to a formal operation, demonstrating stability and effectiveness in price discovery and resource allocation [1][2][3] Market Overview - Gansu is the only region in China where all industrial and commercial users, as well as various power generation units, including renewable energy, participate in the electricity spot market [2] - As of August 2023, Gansu's total installed capacity reached 74 million kilowatts, with 563 entities participating in the spot market, accounting for 60% of market-based electricity consumption [2][3] Price Discovery and Market Functionality - The spot market has shown effective price discovery, with average prices for the day-ahead market at 0.242 yuan/kWh and real-time market at 0.249 yuan/kWh from January to July 2023 [3] - The market operates continuously with a dual-sided reporting mechanism, reflecting real supply-demand relationships under high renewable energy penetration [3][4] Impact on Energy Supply and Demand - The market has incentivized power generation units to adjust output based on price signals, enhancing supply stability [4] - The average price during peak load periods was 0.32 yuan/kWh, encouraging coal-fired power plants to increase peak generation capacity by 700,000 kW [4][5] Renewable Energy Integration - Gansu's electricity spot market has effectively facilitated the integration of renewable energy, with over 65% of the total installed capacity being renewable [6] - The market structure allows for real-time adjustments and competitive bidding, promoting the consumption of green electricity [6][7] Future Development and Recommendations - The Gansu electricity spot market aims to enhance operational monitoring and risk management, with plans to establish digital analysis tools and improve market rules [8][9] - Continuous innovation and adaptation of market mechanisms are expected to support the ongoing development of the electricity market and contribute to national energy transition goals [9]
面向“一带一路”项目的储能电源国际化标准研究
Sou Hu Cai Jing· 2025-09-10 07:07
Energy Storage Power Supply Concept - Energy storage power supply integrates energy collection, conversion, storage, and release, primarily used for peak shaving, valley filling, dynamic regulation, emergency power supply, and energy independent management [1] - It features bidirectional energy flow, multi-mode power supply, and intelligent distribution, making it a crucial technology for modern energy structures like renewable energy consumption and smart grids [1] Technical Performance and Core Indicators - Battery capacity ranges from 3 kWh to 10 MWh, with household systems typically between 5 kWh and 20 kWh, while large commercial systems can reach MWh levels, such as a standard 40-foot container system capable of 2 MWh [3] - Output voltage levels include common DC outputs of 48V, 96V, and 384V, and AC outputs of single-phase 220V or three-phase 380V, supporting grid-tied or off-grid operation [3] - Output power for portable systems ranges from 500W to 3000W, while large systems can exceed 50 kW, 100 kW, or 500 kW, catering to high-load industrial needs [3] - Lithium iron phosphate battery systems can achieve over 6000 cycles (80% DOD), with operational lifespans of 8 to 10 years, significantly surpassing traditional lead-acid systems [4] - Advanced bidirectional inverter designs enable overall system efficiency exceeding 92%, with MPPT functionality for maximum energy utilization when paired with photovoltaic inputs [5] - Integrated BMS ensures safety with multiple protection mechanisms against over-voltage, over-current, over-temperature, short-circuit, and reverse connection [5] - Supports communication protocols like RS485, CAN, and Modbus-TCP/IP for remote monitoring and management with EMS and SCADA systems [5] Application Industries - In photovoltaic systems, energy storage units store solar energy during the day for use at night or on cloudy days, enhancing renewable energy stability; for instance, a domestic 200 kW distributed photovoltaic system paired with a 400 kWh storage unit alleviates "curtailment" issues [7] - For industrial users in high electricity cost areas, energy storage systems charge during off-peak hours and discharge during peak hours, reducing electricity costs; a 1 MWh system deployed at a data center in South China saves over 800,000 RMB annually [8] - In remote areas, energy storage systems combined with wind and solar power provide independent power supply, as demonstrated by a 20 kWh system at a medical station in Africa ensuring 24-hour operation of medical equipment [10] - Energy storage systems act as buffers at electric vehicle charging stations to prevent grid overload during peak charging times; a city fast charging station with a 500 kWh storage unit can support simultaneous fast charging for 10 EVs per hour [11] - Portable energy storage systems provide continuous power for communication, lighting, and medical needs in extreme environments, ensuring operational continuity during military exercises or natural disasters [11] Usage Considerations - Energy storage systems should operate within a temperature range of 0°C to 45°C; additional heating/cooling modules can accommodate wider climate conditions [12] - Good ventilation is essential to prevent heat accumulation during prolonged high-load operation; large systems are recommended to have independent air conditioning [13] - Regular inspections every quarter are advised to check battery status, voltage balance, and BMS fault codes, ensuring timely replacement of faulty modules [14] - Outdoor systems should have an IP54 or higher protection rating and be connected to lightning protection systems to mitigate safety risks from lightning and moisture [15] - Regular software updates and data backups are necessary for monitoring systems to track historical trends and troubleshoot issues [16] Industry Outlook - With the backdrop of "dual carbon goals" and energy structure transformation, energy storage power supply is evolving from a supporting role to a strategic mainstay in energy [18] - Future developments include higher energy density through new storage technologies like solid-state and sodium-ion batteries, enhancing deployment efficiency [18] - Energy storage systems will increasingly integrate into the energy internet, forming a dynamic energy ecosystem with photovoltaics, wind power, and electric vehicles [19] - Modular storage products will enable "plug-and-play" capabilities, significantly reducing construction time and operational costs [20] - Energy storage systems will align with international standards in safety, electromagnetic compatibility, and communication protocols, adapting to global markets [21] - Government incentives, such as the U.S. Inflation Reduction Act and EU green energy subsidies, will further promote the adoption of energy storage systems in global energy frameworks [22]
“塞上绿电”好风光 ——来自宁夏的调查
Jing Ji Ri Bao· 2025-09-07 22:13
Core Viewpoint - Ningxia is leveraging its abundant renewable energy resources, particularly solar and wind, to transform its economy and establish itself as a leader in green energy development, with a significant focus on building a new energy system and enhancing the efficiency of renewable energy utilization [1][3][7]. Renewable Energy Development - Ningxia has become the first comprehensive demonstration zone for renewable energy in China, with a renewable energy installed capacity exceeding 50 million kilowatts, accounting for 62.6% of its total installed capacity [1]. - The region's solar energy utilization averages about 1,500 hours per year, while wind energy utilization averages around 2,000 hours per year, supported by vast unutilized land [1][2]. - The Ningdong Energy and Chemical Base features a 2 million kilowatt photovoltaic base that generates approximately 3.7 billion kilowatt-hours annually, saving about 1.15 million tons of standard coal and reducing carbon emissions by approximately 3.15 million tons [2]. Policy and Infrastructure Support - Ningxia has introduced several supportive policies to enhance the new energy system, including the implementation of a three-year action plan for green and low-carbon transformation [3]. - The region has established a new type of power system capable of 24-hour green electricity supply, addressing issues related to distribution network capacity and regulation [2][3]. - The construction of the first integrated wind-solar project and the first smart charging demonstration center in Northwest China has been completed, showcasing Ningxia's commitment to renewable energy development [3]. Power Transmission and Economic Impact - In 2024, Ningxia's renewable energy generation is projected to reach 61.3 billion kilowatt-hours, with 40.2 billion kilowatt-hours consumed locally and 21.1 billion kilowatt-hours transmitted to other regions [4]. - The "Ningxia to Hunan" ultra-high voltage direct current transmission project is expected to deliver over 36 billion kilowatt-hours annually, with more than 50% coming from renewable sources [6]. - The region's green electricity initiatives are expected to enhance its economic development while supporting energy supply in eastern and central China [4][6]. Technological Advancements and Challenges - Ningxia has made significant technological advancements in green electricity, achieving multiple provincial and national awards for innovations [7]. - The region's energy storage capacity has surpassed 600,000 kilowatts, ranking fourth in the country, which helps improve the controllability of renewable energy input [10]. - Despite the promising outlook, challenges remain in stabilizing the power system and ensuring effective integration of renewable energy sources [11]. Future Plans and Goals - By 2025, Ningxia aims to increase its renewable energy capacity by 20.6 million kilowatts and storage capacity by 600,000 kilowatts, while enhancing its power grid infrastructure [8]. - The region plans to develop 2,447 megawatts of new energy to support the green electricity needs of various industries, including modern coal chemical and data-intensive sectors [12].