既有公共建筑节能减碳改造是建筑节能减碳领域重要组成部分，具有能耗和碳排放强度大、总量大、潜 力大等特征。根据《2024中国城乡建设领域碳排放研究报告》，我国建筑相关能耗占全国能源消耗总量 的44.8%，其中，公共建筑能源消耗占全国建筑能源消耗总量的36.43%。 近日，为推动建筑领域节能降碳、控制和减少建筑行业温室气体排放，生态环境部联合住房和城乡建设 部正式发布《温室气体自愿减排项目方法学 既有公共建筑围护结构与供暖通风空调系统能效提升》 （以下简称《方法学》）。 主持这项《方法学》编制的住房和城乡建设部科技与产业化发展中心建筑节能与低碳发展处副处长梁传 志向中环报记者介绍，《方法学》的发布将撬动一批有改造意愿的业主和所有权人加快既有公共建筑节 能降碳改造项目实施，进而加快带动整个行业的减排进程。 建筑减碳难点：改造初投资较大，投资回收期长 中国环境报：为何《方法学》聚焦建筑减碳？目前，我国既有全国公共建筑能效提升覆盖的建筑范围有 多大？ 梁传志：我国公共建筑节能始于本世纪初期，伴随我国公共建筑节能设计标准的印发，公共建筑节能逐 步受到了重视。目前，我国公共建筑中还存在较大量的非节能建筑和节能水平不高的建筑 ...

建筑领域的节能降碳，是我国实现"双碳"目标的关键一战。在这条漫长的减排道路上，绿色建材扮演着 何种角色？其推广应用还需跨越几道门槛？又有哪些创新实践正在打破僵局？在今日召开的首届建筑材 料应用创新大会上，绿色建材产品认证技术委员会委员兼秘书长牛凯征，围绕绿色低碳建材如何助力建 筑节能降碳等议题发表了自己的看法，他认为推动建筑碳减排必须"运行碳"与"隐含碳"两手抓，而政府 采购正可以通过开创性的试点，为破解大宗建材"隐含碳"量化管控难题探索关键路径。 一、快速发展与协同挑战：绿色建材产业的多点突破与当前瓶颈 "绿色建材产业正处于从规模扩张向质量效益提升的关键转型期。"牛凯征开门见山地给出了总体判断。 他引用数据称，近年来产业成效显著：截至2025年9月底，绿色建材产品认证证书数量已达10587张，较 上年同期增长10%；绿色建材产品营收突破2500亿元，年均增长20%；政府采购支持绿色建材促进建筑 品质提升的试点城市已扩大至101个，政策实施带动了超万亿元的项目投资。 这一系列数据的背后，是政策体系的持续完善与市场活力的逐步激发。牛凯征阐释到，《绿色建筑行动 方案》《绿色建材产业高质量发展实施方案》等已明确"低 ...

Core Viewpoint - The event highlighted the implementation of new energy-saving standards for public buildings in Shandong, aiming for a 78% energy efficiency improvement, alongside the existing 83% standard for residential buildings, reflecting a significant push towards energy conservation and carbon reduction in the construction industry [3][4]. Group 1: Energy Efficiency Standards - Shandong is set to implement a new public building energy-saving standard of 78%, which is the first of its kind in the country, effective from August 1, 2023 [4]. - The residential building energy-saving standard of 83% was already implemented on May 1, 2023, marking a significant advancement in energy efficiency requirements [4]. - The new standards emphasize the use of all-electric designs for energy systems, excluding centralized heating, and aim to enhance the thermal performance of building envelopes [4][5]. Group 2: Green Building Promotion - The promotion of green buildings is a key focus, with requirements for new urban residential buildings to comply with green building standards, and public buildings funded by government or state-owned investments to meet at least two-star green building standards [3][4]. - The application of green building materials is mandated, with specific percentages required for different star ratings of green buildings: 10% for one-star, 20% for two-star, and 30% for three-star buildings [3][4]. Group 3: Market Opportunities and Innovations - The new energy-saving standards are expected to drive the adoption of high-efficiency insulation materials and innovative construction methods, creating new market opportunities for the construction industry [5][7]. - The introduction of advanced materials, such as composite insulation boards, is gaining traction, with benefits including reduced thickness and improved thermal performance, leading to cost reductions for developers and buyers [7][9]. - The event showcased new technologies and products, including integrated photovoltaic materials that serve both decorative and energy-generating purposes, indicating a trend towards multifunctional building materials [9].

Core Insights - The 2025 International Green Building and Energy Efficiency Conference aims to promote the development of the green building industry and international cooperation [3] - The conference highlights the need for high-quality development in green buildings and the acceleration of energy-saving and carbon reduction measures in the construction sector [3] - The event showcases the latest research achievements and innovative products in green building and low-carbon technologies, supporting sustainable development in the construction industry [4] Group 1 - The conference is hosted by multiple organizations, including the China Urban Science Research Association and the China-U.S. Green Fund, indicating a collaborative effort in promoting green building initiatives [3] - Hainan Province is actively encouraging investment in the green building sector, leveraging its free trade port development opportunities [3] - The former Vice Minister of Housing and Urban-Rural Development emphasized the importance of integrating renewable energy and biomass recycling technologies in building design to enhance living quality while saving energy [3] Group 2 - The conference features exhibitions on various topics such as smart construction, photovoltaic building integration, and resilient urban planning, showcasing advancements in low-carbon technologies [4] - The event serves as a platform for sharing practical application cases and innovative solutions in the green building sector, fostering industry growth and new business opportunities [4] - The focus on cross-disciplinary collaboration and technological innovation is crucial for addressing challenges in carbon emissions and public health risks within the building industry [3]

Group 1: Industry Overview - China's building energy consumption accounted for 44.8% of the total national energy consumption in 2022, with carbon emissions from the building sector making up 48.3% of national energy-related carbon emissions [2] - Only about 3%-5% of newly constructed buildings each year are energy-efficient, with air conditioning, lighting, and power facilities consuming nearly 80% of the energy [2] - The building energy-saving market in China has seen an average annual growth rate of over 15% in the past five years, with expectations to exceed 300 billion yuan by 2029, indicating significant market potential [5] Group 2: Policy and Targets - By 2025, the building sector aims to have a more robust energy-saving and carbon reduction system, with new ultra-low energy buildings increasing by over 20 million square meters compared to 2023, and existing building energy-saving renovations increasing by over 200 million square meters [4] - Policies such as the "14th Five-Year Plan for Building Energy Conservation and Green Building Development" emphasize the importance of smart energy-saving technologies and the promotion of ultra-low energy and near-zero energy buildings [2][4] Group 3: Technological Innovations - Hitachi has introduced the SET-FREE RIII series multi-split air conditioning units, which utilize new pressure control technology to reduce renovation costs and improve energy efficiency [6][7] - The SET-FREE Extreme series employs high-efficiency heat recovery technology, achieving energy savings of 30%-70% compared to traditional methods, and is designed for various industrial applications [7] - Hitachi has completed its digital transformation, achieving breakthroughs in AI energy optimization and zero-carbon algorithm models, with a goal to reduce carbon emissions across its product lifecycle by 41% and production emissions by 16% [10]

Fundraising Overview - The company raised a total of RMB 519.4 million through its initial public offering, with a net amount of RMB 460.58 million after deducting issuance costs [2][3] - As of December 31, 2024, the remaining balance of the raised funds was RMB 289.85 million, consisting of RMB 49.85 million in demand deposits and RMB 240 million in structured deposits [6] Fund Management - The company has established a fundraising management system in compliance with relevant regulations, ensuring the funds are stored, approved, and used transparently and efficiently [3][4] - The company signed tripartite supervision agreements with banks to manage the special accounts for the raised funds [3][4] Fund Utilization - The company has utilized part of the raised funds for projects that enhance its research and development capabilities, although some projects do not generate direct economic benefits [8] - The company has also engaged in cash management of temporarily idle funds, using up to RMB 25 million for this purpose, with a return of RMB 707.96 thousand from financial products [9] Profit Distribution - For the fiscal year 2024, the company plans to distribute a cash dividend of RMB 0.08 per share, totaling RMB 14.63 million, which is 15.68% of the net profit attributable to shareholders [15][18] - The company’s retained earnings will be used for operational needs, research and development, and to enhance its risk resilience amid economic uncertainties [19] Industry Context - The construction curtain wall industry is facing adjustment pressures due to macroeconomic fluctuations and changing market demands, with a slowdown in overall growth [54] - The company is positioned in the high-end curtain wall market, which is seeing increased concentration, benefiting leading regional enterprises [54][59] - The government is promoting energy-saving and carbon reduction initiatives in the construction sector, creating opportunities for companies that can adapt to these trends [55][56] Strategic Initiatives - The company is focusing on modernizing its operations through industrialization, digitalization, and intelligent construction, which are essential for future growth [62][63] - The establishment of a subsidiary dedicated to developing low-carbon and high-performance building materials aligns with the industry's shift towards sustainable practices [65]