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2024绿氢电力系统的形态演进报告
Tsinghua University· 2024-08-27 06:00
Investment Rating - The report does not explicitly state an investment rating for the green hydrogen industry. Core Insights - The integration of hydrogen in the power system has evolved from small-scale to large-scale applications, driven by advancements in renewable energy and the scaling of electrolysis systems, leading to a specialized industry [50]. - The future of green hydrogen will focus on isolated hydrogen production systems, hydrogen energy storage, and coupling with hydrogen supply chains to meet decarbonization goals [51]. Summary by Sections The Past of Green Hydrogen - Small-scale applications of hydrogen production from electricity include using hydrogen as a cooling medium for large generators, with a 200 MW generator consuming approximately 60 Nm³/day [5]. - Large-scale applications have emerged, particularly in polycrystalline silicon production using modified Siemens processes, with hydrogen feed rates around 500 Nm³/h [9][10]. - The efficiency and power quality of large-scale hydrogen production systems have improved, leading to an overall increase in system efficiency [15]. The Present of Green Hydrogen - The current primary system integrates wind and solar power with the electricity grid, allowing for the use of green electricity in downstream applications such as ammonia and methanol production [22]. - The secondary system faces challenges with low load operation periods, necessitating optimized startup and shutdown plans for units [32]. The Future of Green Hydrogen - Isolated green hydrogen power systems will require configurations of fuel cells and battery energy storage systems, prioritizing the use of primary electricity from wind and solar sources [35]. - Hydrogen energy storage systems are expected to expand to larger power systems, such as data centers, with a focus on deep decarbonization scenarios requiring ammonia storage [41]. - The coupling of hydrogen supply chains will significantly reduce carbon reduction costs, with ammonia storage costs being extremely low compared to other energy storage methods [46][48].
短视频时代的大众文旅生活白皮书
Tsinghua University· 2024-08-22 01:45
Investment Rating - The report does not explicitly provide an investment rating for the industry Core Insights - The short video live streaming platforms have deeply integrated into the public cultural tourism life, creating new landscapes and consumption experiences for the public, thus becoming a new carrier and space for sharing a better life [2] - The rapid development of short video platforms and their deep integration with cultural tourism have restructured the communication ecology of public cultural tourism, promoting the formation of a new pattern in this sector [2] Summary by Sections Development History of Public Cultural Tourism on Short Video Platforms - The period from 2016 to 2017 marked the "germination" phase of short video communication for public cultural tourism, where the transition from traditional media to digital media began with the launch of Douyin [9][10] - The "internet celebrity" phase from 2018 to 2019 saw government accounts entering short video platforms, enhancing the promotion of city images and cultural tourism [12][14] - The "cloud" development phase from 2020 to 2022 highlighted the role of short video platforms in supporting cultural tourism during the pandemic, providing diverse solutions for cultural consumption [18][19] - The "out of the circle" integration phase from 2023 to 2024 emphasizes the rapid monetization of cultural tourism through online communication, enhancing the quality of offline tourism services [22][26] Current Status of Public Cultural Tourism Communication - The short video platforms have enabled a diverse representation of urban cultural tourism, with a significant increase in domestic travel, reaching 4.891 billion trips in 2023, a 93.3% year-on-year increase [26] - The distribution of popular cities on Douyin reflects a balanced representation of urban and rural areas, with significant engagement from both [27][29] Communication Subjects - The communication model has shifted from a top-down approach to a multi-party collaborative model, involving government, influencers, businesses, tourists, and citizens [31] - Government accounts on Douyin have increased significantly, with 2,534 national cultural tourism accounts by the end of Q1 2024, enhancing city visibility [32][33] Communication Content - The content of public cultural tourism has evolved to include four main themes: traditional culture, festive activities, local cuisine, and local people [39] - The popularity of traditional culture has surged, with a notable increase in the number of creators focusing on intangible cultural heritage, reflecting a 72% year-on-year growth in creators under 30 [40][41]
传承浪潮与家族信托调查研究
Tsinghua University· 2024-07-14 00:50
| --- | --- | |---------------------------------------------------------------|-------| | | 清华大学五道 金融学院全球家族企业研究中心 | | 2023中国家族财富管理 穿越不确定性:传承浪潮与家族信托调查研究 | | | | | | | | 序言 我国民营企业正在经历有史以来最大规模的集中传承浪潮。在 代际传承中做大做强实业企业,无论对于实现转型升级和科技创 新,还是对于促进国民经济的高质量、可持续发展,抑或对于推动 实现社会的共同富裕,都具有至关重要的作用。 共同富裕,既要"做大蛋糕",也要"分好蛋糕"。企业家首 先要立足于自身的高质量发展,持续"做大蛋糕"。历久弥新的长 青企业必须经历持续的转型升级与再创业,以适应不断更新更替的 产业周期,而代际传承正是实现高质量发展的窗口期和机遇期。由 于教育背景等优势,下一代成员往往对新技术和新产业的接受能力 更强、兴趣更为浓厚,能够担起转型升级和科技创新的重任。 在"分好蛋糕" 的过程中,民营企业在初次分配和再分配中贡 献了80%以上的城镇劳动就业和50%以上的税收。在第三 ...
中国工业园区绿色低碳发展研究报告(2023)
Tsinghua University· 2024-06-18 01:35
Industry Overview - The report focuses on the green and low-carbon development of industrial parks in China, aiming to align with the essence of Chinese modernization and promote sustainable development [3] - Industrial parks are significant carriers of the real economy, with 80% of industrial enterprises concentrated in parks and 50% of national industrial output coming from these parks [7] - As of 2018, there were 2,543 national and provincial-level development zones in China, with 1,045 located in the Yangtze River Economic Belt, accounting for nearly half of the country's industrial parks [7] Policy and Practice - Green development emphasizes solving the harmony between humans and nature, as highlighted by President Xi Jinping in various speeches and policy documents [10] - Key policy documents include the "2030 Carbon Peak Action Plan" and the "Pollution Reduction and Carbon Synergy Implementation Plan," which emphasize the need for industrial parks to innovate in pollution reduction and carbon management [13] - Several pilot programs and demonstration projects have been launched, such as the National Eco-Industrial Demonstration Parks and Low-Carbon Industrial Parks, to promote green transformation in industrial parks [14][17] Achievements and Challenges - By March 2023, 225 green parks had been selected across five batches, with 111 in the eastern region, 78 in the west, and 82 in the central region [23] - The economic performance of 77 national eco-industrial demonstration parks in 2021 showed a total industrial output value of 8,009.8 billion yuan, with high-tech enterprises contributing 45% of the total output [24] - Challenges include high energy consumption, significant greenhouse gas emissions, and the need for better integration of energy, water, and waste management systems [36][38] Innovation and Vision - The report proposes a "one-core, four-core" carbon accounting framework to help industrial parks achieve carbon peak and neutrality goals, fostering new industrial competitive advantages [44] - A multi-flow, multi-process model for carbon reduction and pollution control is introduced, focusing on material, energy, and carbon flows at the enterprise, infrastructure, and park levels [45] - By 2030, 850 industrial parks in China could achieve a 41% reduction in greenhouse gas emissions and a 20% reduction in freshwater consumption through clean energy transformation [54] Sustainable Water Management - The report advocates for a comprehensive water management system that covers the entire lifecycle of water use, from extraction to wastewater treatment and reuse [55] - Smart water management platforms are encouraged to optimize water supply and usage, with a focus on non-conventional water sources like seawater desalination and rainwater harvesting [56] Data-Driven Pollution Prediction - A data-driven model for predicting volatile organic compounds (VOCs) emissions in chemical plants is proposed, leveraging machine learning to improve emission control and management [60] Comprehensive Energy Management - The report emphasizes the importance of upgrading existing energy infrastructure in industrial parks, promoting the use of clean energy, and developing smart energy management systems [62]
中国Z世代的六类人-基于生活信念的人群画像与气候叙事最新版本
Tsinghua University· 2024-06-14 01:20
Investment Rating - The report does not provide a specific investment rating for the industry. Core Insights - The report categorizes China's Generation Z into six segments based on their life beliefs and climate narratives, which include: the Steadfast Traditionalists, the Self-Alienated, the Passionate Strivers, the Carefree Comfort Seekers, the Moderate Pragmatists, and the Cautious Observers [16]. Summary by Sections Introduction - The report is a sub-report derived from "Connecting China's Generation Z: Life Beliefs and Climate Communication," focusing on the segmentation of Generation Z based on life beliefs and climate narratives [16]. Methodology - The research involved a public survey with a sample size of 3,552 Generation Z individuals, covering various urban and rural areas across China. Additionally, focus group discussions and narrative workshops were conducted to gather qualitative insights [19][20]. Segment Analysis - Each segment of Generation Z is analyzed in detail, including their life beliefs, climate characteristics, social issues of concern, narrative preferences, and media usage habits. This analysis aims to provide deeper insights for targeted climate communication strategies [18]. Steadfast Traditionalists - This segment represents approximately 23% of Generation Z. They hold strong nationalistic sentiments, high political efficacy, and a belief in traditional values. They are concerned about social issues such as climate change and are willing to take action and bear costs for climate policies [22][28][33]. Self-Alienated - The characteristics and preferences of this segment are explored, focusing on their detachment from societal issues and climate narratives [10]. Passionate Strivers - This segment is characterized by their high engagement with climate issues and a strong desire for social change [13]. Carefree Comfort Seekers - This group tends to prioritize personal comfort and leisure over climate concerns, reflecting a more relaxed attitude towards societal issues [12]. Moderate Pragmatists - They exhibit a balanced approach to climate issues, often weighing practical solutions against idealistic goals [11]. Cautious Observers - This segment is characterized by a more reserved approach to climate action, often requiring more information and reassurance before engaging [14]. Climate Narrative Preferences - The report emphasizes the importance of tailoring climate narratives to resonate with the specific beliefs and values of each segment, highlighting the need for differentiated communication strategies [18][51].