光伏技术创新
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BC电池有望实现“弯道超车”
Zhong Guo Dian Li Bao· 2025-12-08 03:26
Core Insights - The Chinese photovoltaic industry is experiencing a price recovery in the market for polysilicon, silicon wafers, battery cells, and modules, with year-on-year increases of 31.6%, 6.8%, 6.5%, and stable prices respectively as of January to September 2025. However, production volumes for polysilicon and silicon wafers have decreased by 32.8% and 12.5% respectively, while battery cell and module production have increased by 8.8% and 12.2% respectively [1] Group 1 - The photovoltaic industry is still in a period of transformation and deep adjustment, despite the positive price trends [1] - The BC battery technology is viewed as a key direction for future development in the photovoltaic market due to its higher efficiency and cost reduction potential [1] Group 2 - The current market competition is heavily focused on efficiency, with various technologies approaching their theoretical efficiency limits. BC batteries currently have a conversion efficiency of 27.5%, with a theoretical limit exceeding 29% [2] - The market share of PERC batteries has dropped to 11.2%, while TOPCon batteries dominate with a market share of 88.3%. BC batteries are expected to reach a market share of 10% by the end of 2025, indicating significant growth potential [3] Group 3 - Reducing costs is a major focus for the photovoltaic industry, with silver paste costs accounting for 27% of battery cell costs and 12% of total module costs as of December 2024 [4] - The rising price of silver has led to increased costs for high-temperature silver paste, prompting the industry to explore alternatives such as copper paste, which is cheaper and has better conductivity [4][5] Group 4 - Innovation is essential for the healthy and orderly development of the photovoltaic industry, with companies encouraged to accelerate technological innovation and improve product quality to strengthen their competitive edge [6]
第三方实证有力推动光伏技术创新突破
Zheng Quan Ri Bao· 2025-12-01 23:24
炒股就看金麒麟分析师研报,权威,专业,及时,全面,助您挖掘潜力主题机会! 本报记者 殷高峰 "基地建成以来已为国内外300多家光伏企业提供了检测、实证、科研、标准、培训等技术服务,现场检 测验收服务覆盖全国十余个省级单位的数千个光伏电站。"国家光伏质检中心首席技术官王炳楠在接受 《证券日报》记者采访时表示,国家光伏质检中心已与10多个国内外认证机构实现互认合作,以户外实 证检测助力中国光伏产品拓展海外市场。 此次银川基地开放日活动探访的重点之一就是当前光伏市场上最主流的,代表新一代光伏技术的 TOPCon组件和BC组件的户外实证情况。 "户外实测环境上包括风速、风向、环境温度、环境湿度,大气压、降雨量等,在同等条件下,测试组 件实时的电压、电流、功率、发电量以及组件的温度等。"银川基地系统运维主管汪建国对《证券日 报》记者表示,经过近一年的测试,在相同的条件下,对比平均单块直流累计发电量,隆基绿能科技股 份有限公司(以下简称"隆基绿能")的TOPCon组件样品平均发电908kWh,而BC组件样品平均发电 965kWh,相比有近6.3%的增益提升。 "户外实证的核心意义在于通过真实环境数据验证技术性能,填补行业 ...
实探国家光伏质检中心银川户外实证基地:第三方实证有力推动光伏技术创新突破
Zheng Quan Ri Bao Zhi Sheng· 2025-12-01 16:37
Core Viewpoint - The solar photovoltaic (PV) industry in China has become a leading global sector, with significant contributions from outdoor testing bases like the Yinchuan base, which supports technological advancements and market expansion [1][4]. Industry Overview - The Yinchuan outdoor testing base is the largest third-party facility in China, established in 2016, providing comprehensive technical services to over 300 PV companies [4]. - China's PV products have consistently exported over 200 billion yuan annually from 2021 to 2024, highlighting the industry's growth [1]. Technological Advancements - The rapid iteration of PV technology necessitates real-world testing, with the Yinchuan base serving as a critical platform for validating new technologies [2][4]. - The base has accumulated over 50 billion data points, aiding in research and standardization projects, and has published significant environmental monitoring reports [5]. Performance Testing - Recent tests showed that Longi Green Energy's TOPCon components generated an average of 908 kWh, while BC components produced 965 kWh, indicating a 6.3% performance improvement for BC technology [5]. - The outdoor testing environment measures various factors such as wind speed, temperature, and humidity to assess component performance under real conditions [5]. Competitive Advantages - Longi Green Energy's Hi-MOX10 "three-proof" components have received the first global certification for their unique features, focusing on fire prevention, shading resistance, and dust accumulation [6][10]. - The "three-proof" components demonstrated superior performance in scenarios with shading and dust, with a 48.87% increase in power generation compared to TOPCon components under specific conditions [8][9]. Market Position - Longi Green Energy maintains a leading position in the distributed PV market, with over 70% of its shipments consisting of "three-proof" components, emphasizing a strategy focused on differentiation and technological innovation [10]. - The company aims to shift the competitive landscape from price-based competition to one centered on technology and value, promoting high-quality development in the PV industry [10].
山东移动建设光伏发电集群,以绿色动能夯实数字便民底座
Qi Lu Wan Bao· 2025-11-28 07:53
为强化供电体系绿色稳定属性,山东移动响应国家新能源战略,大力推进光伏项目,为城市绿色转型与 民生数字化基建赋能。中国移动(600941)(山东济南)数据中心作为区域数字基础设施核心枢纽,具 备"规模领先、服务优质、网络强劲"三大优势,亦是移动云、IT 云、网络云深度协同的核心节点,为 山东数字经济创新发展提供有力支撑。 在光伏项目推进中,中国移动(山东济南)数据中心布局的光伏建设,容量达51.04kwp,全程采用先进 光伏组件与智能监控系统,既提升光伏发电的效率与稳定性,又能实时监测设备运行状态,及时排查并 解决潜在问题,大幅降低运维成本。同时,山东移动还积极探索光伏与通信设备的融合新模式,推动光 伏发电高效应用于机房楼用电场景,进一步提升整体能源利用效率,为数据中心稳定运行提供更可靠的 能源支撑。 光伏项目建成投用后,数据中心供电模式从市电直供升级为"光伏+市电"双保障模式,供电稳定性实现 质的提升。该项目年预估发电量达21.7万度,在响应国家绿色节能发展目标的同时,既通过减少市电占 用间接保障周边居民用电稳定,更能为数据中心内各类业务提供长效可靠的电力支撑,为城市数字化发 展与数字便民服务筑牢坚实的能源根 ...
福建省计量院太阳能电池科研项目通过专家组验收
Zhong Guo Zhi Liang Xin Wen Wang· 2025-11-27 09:33
Core Insights - The project led by Fujian Provincial Institute of Metrology has successfully developed and tested a transparent solar cell based on tin-based perovskite, achieving original innovations in material design and process technology [1][2] - The transparent solar cells are seen as a significant advancement in the renewable energy sector, allowing for integration into vehicles and building facades, thus expanding application scenarios beyond traditional photovoltaic systems [1][2] Group 1 - The project has applied for a national invention patent for a method of producing transparent perovskite solar cells using a ternary cation absorption layer [1] - Traditional methods for achieving transparency in perovskite solar cells often compromise either light transmittance or light absorption, leading to decreased device performance [1] - Key challenges in the industry include stability issues and the toxicity of lead, which poses environmental and health risks if not properly encapsulated [1] Group 2 - The project team has innovatively replaced lead with tin ions to create a lead-free transparent perovskite solar cell, enhancing both light transmittance and operational stability through various technological innovations [2] - Systematic testing of key performance indicators such as photoelectric conversion efficiency, visible light transmittance, color coordinates, and color rendering index has been conducted to ensure scientific evaluation of the device performance [2] - The project's outcomes provide significant theoretical and technical support for photovoltaic companies, laying the groundwork for commercializing transparent perovskite solar cells suitable for building-integrated photovoltaic systems [2]
光伏CTO聚首蓉城,以创新破局能源未来
Tai Mei Ti A P P· 2025-11-21 06:34
12 (2): DESIC BESIC sta li 20 E B l 居中国国际光伏与你 THE BTH CH INA INTERNATIONAL PV AND ENERGY STOI 首届光伏CTO峰会暨技术创新大会现场,图源:主办方供图(下同) 11月19日,首届光伏CTO峰会暨技术创新大会在成都圆满闭幕。本次会议由四川省科技厅指导,通威股份有限公司主办,四川省晶硅光伏新兴产业创新中 心、四川省晶硅光伏技术创新中心承办,成都高新区管理委员会、四川省创新驱动发展中心支持举办。 大会以"技术重塑产业,创新定义未来"为主题,旨在搭建一个高规格、高水平的研发交流平台,共同探讨光伏与储能技术的前沿趋势,破解行业发展瓶颈, 定义产业未来蓝图。 众星云集,共享技术盛宴 首届光伏CTO峰会暨技术创新大会汇聚全球顶尖的学术泰斗和行业精英,全国人大代表、全国工商联副主席、通威集团董事局主席刘汉元,四川省科学技术 厅党组书记、厅长路松明,澳大利亚新南威尔士大学卓越教授Martin Green,长三角太阳能光伏技术创新中心主任沈辉,上海市太阳能学会名誉理事长沈文 忠,扬州大学党委书记丁建宁,中国光伏行业协会副秘书长江华等嘉宾莅 ...
钙钛矿技术加速产业化
Zhong Guo Neng Yuan Wang· 2025-11-14 06:55
Core Insights - Perovskite photovoltaic technology is entering a significant phase of industrialization, with companies like Jing Shan Light Machine achieving mass delivery of perovskite photovoltaic equipment, marking a milestone in the domestic supply capability [1] - The industry is shifting from traditional silicon efficiency improvements to new material structural innovations represented by perovskite and perovskite tandem technologies, driven by national carbon neutrality goals and global energy transition trends [1][2] - The development of a unified standard system for perovskite technology is crucial for its commercialization, as existing testing and certification frameworks are inadequate for new material technologies [6][7] Industry Developments - Perovskite technology is transitioning from laboratory efficiency competition to a focus on mass production efficiency and stability, with both single-junction and tandem pathways advancing simultaneously [2] - The industry is witnessing a trend of moving from point testing to scenario-based validation in perovskite power station demonstration projects, with several projects achieving megawatt-level operation [4] - The establishment of a comprehensive industrial chain from equipment manufacturing to material supply and component packaging is underway, aiming to seize first-mover advantages [5] Technical Characteristics - Single-junction perovskite products are cost-effective and possess flexible and semi-transparent advantages, making them irreplaceable in new scenarios like building-integrated photovoltaics and vehicle-mounted photovoltaics [3] - Perovskite/silicon tandem technology enhances overall efficiency levels, providing pathways for achieving higher efficiency limits in the industry [3] Standardization Efforts - The rapid advancement of standardization work for perovskite technology is a key focus, with efforts to establish dedicated standards for performance testing, temperature coefficients, and weak light performance [6][7] - The construction of a standard system for perovskite technology is essential for ensuring the efficiency of technology promotion and will directly impact market access and product certification [7]
隆基首席科学家徐希翔: 中国光伏正以技术重构产业价值
2 1 Shi Ji Jing Ji Bao Dao· 2025-11-13 03:46
Core Insights - The article highlights the significant advancements in photovoltaic technology by Longi Green Energy, particularly through the leadership of Chief Scientist Xu Xixiang, who has been recognized with the prestigious William R. Cherry Award, marking a historic achievement for Chinese scientists in the field [1][10]. Group 1: Technological Advancements - Longi Green Energy has made a breakthrough in HIBC battery technology, achieving a world record efficiency of 27.81%, which is 94.6% of the theoretical limit of 29.4% [5][6]. - The company is transitioning from homogeneous price competition to differentiated value creation in the photovoltaic industry, emphasizing the importance of technology as a core driver for reshaping the competitive landscape [1][14]. Group 2: Research and Development Strategies - The R&D team at Longi has adopted a 24/7 research model similar to the semiconductor industry to enhance efficiency and ensure continuous operation of critical equipment [9]. - Longi's R&D strategy focuses on a "wide research, narrow investment" approach, balancing technological innovation with commercial application, ensuring that innovations can quickly translate into market advantages [11][12]. Group 3: Industry Trends and Future Directions - The photovoltaic industry is experiencing a shift from low-level competition to high-quality development, necessitating a focus on technological innovation and differentiation to overcome challenges such as overcapacity and price wars [13][14]. - Future technological advancements will focus on enhancing existing silicon technologies and exploring next-generation tandem solar cell technologies, such as perovskite/silicon structures, to improve efficiency and reliability [15][16].
隆基首席科学家徐希翔:中国光伏正以技术重构产业价值
2 1 Shi Ji Jing Ji Bao Dao· 2025-11-12 23:16
Core Viewpoint - The article highlights the significant advancements in photovoltaic technology by Longi Green Energy, particularly through the leadership of Chief Scientist Xu Xixiang, who emphasizes the shift from homogeneous price competition to differentiated value creation in the solar industry [1][11]. Group 1: Technological Innovations - Longi Green Energy has achieved a world record efficiency of 26.81% for silicon solar cells in October 2022, followed by an increase to 27.3% in December 2023, and aims for a new high of 27.81% by the end of 2024 [2][3]. - The development of the HIBC battery technology, which combines low-temperature and high-temperature processes, addresses the cost challenges associated with pure low-temperature technology [2][3]. - The company has successfully implemented the BC technology, which enhances efficiency by reducing shading on the solar cells, and is now in large-scale production [3][5]. Group 2: Industry Challenges and Solutions - The main challenge for the BC technology is its higher manufacturing costs due to additional process steps, prompting Longi to invest in non-silver metallization techniques to optimize costs [5][6]. - The company is focusing on integrating various technological paths, such as copper plating and graphic vacuum coating, to achieve breakthroughs in non-silver metallization [5][6]. Group 3: Strategic Vision and Market Position - Longi Green Energy aims to create an ecosystem around BC technology, promoting collaborative innovation to reduce R&D risks and accelerate technological iterations [6][10]. - The company adopts a "wide research, narrow investment" strategy to balance technological innovation with commercial application, ensuring that new technologies can quickly translate into market advantages [9][10]. - The recognition of Xu Xixiang with the William R. Cherry Award signifies international acknowledgment of Longi's R&D efforts and enhances its brand image in the solar industry [8][9]. Group 4: Future Outlook - The solar industry is transitioning from low-level competition to high-quality development, with a focus on technological innovation and differentiation as key drivers [10][11]. - Future advancements will focus on improving existing silicon technologies and exploring next-generation layered battery technologies, such as perovskite/silicon tandem cells, to enhance efficiency and reliability [12][13].
21专访丨隆基首席科学家徐希翔:中国光伏正以技术重构产业价值
2 1 Shi Ji Jing Ji Bao Dao· 2025-11-12 23:03
Core Viewpoint - The article highlights the significant advancements in photovoltaic (PV) technology by Longi Green Energy, particularly through the leadership of Chief Scientist Xu Xixiang, who emphasizes the shift from homogeneous price competition to differentiated value creation in the solar industry [1][10]. Group 1: Technological Innovations - Longi Green Energy's research team has achieved a world record efficiency of 26.81% for silicon solar cells in October 2022, followed by an improvement to 27.3% in December 2023, and aims for 27.81% by the end of 2024 [2][3]. - The development of the high-low temperature hybrid HIBC battery technology represents a significant breakthrough, combining the advantages of low-temperature processes with cost-effective high-temperature methods [2][3]. - The bifacial cell (BC) technology has been successfully mass-produced, providing a differentiated high-efficiency product option in the market, with potential for further cost optimization through innovations like silver-free metallization [3][5]. Group 2: Industry Challenges and Solutions - The main challenge for the large-scale application of BC technology is its higher manufacturing costs due to additional process steps, which Longi is addressing through the development of non-silver metallization techniques [5][6]. - The company is focusing on integrating various technological pathways to enhance the reliability and manufacturability of non-silver metallization, with expectations for large-scale implementation by mid-2026 [5][6]. Group 3: Strategic Vision and Market Position - Longi Green Energy is committed to building an ecosystem around BC technology, promoting collaborative innovation to reduce R&D risks and accelerate technological iterations [6][10]. - The company adopts a "wide research, narrow investment" strategy, ensuring a balance between technological innovation and commercial application, which has led to successful large-scale applications of various technologies including PERC, TOPCon, and BC [9][10]. - The shift towards high-quality development in the solar industry is driven by technological innovation, with a focus on enhancing efficiency, reducing costs, and expanding application scenarios [10][12].