Qian Zhan Wang·2025-06-20 08:48Core Insights - The rapid urban construction in China has led to increased energy consumption in the building industry, necessitating the promotion of green building energy-saving products to mitigate high energy consumption and support the development of energy-efficient construction projects [1][2]. Industry Overview - The building energy-saving industry in China is characterized by a growing market for energy-efficient products, driven by the need to address high energy consumption in construction projects [1]. - Key companies in the industry include China National Materials Group Corporation (中材节能), Beixin Building Materials (北新建材), and others [1]. Energy-Saving Product Types - Ventilation, Lighting, Heating: Products such as doors, windows, membranes, and low-emission glass are designed to optimize natural ventilation and lighting, thereby reducing energy consumption [3]. - Building Envelope Structures: Energy-saving designs for roofs, doors, and walls improve insulation and reduce energy use, enhancing indoor air quality and comfort [3]. - Indoor Energy Efficiency: High-efficiency central air conditioning and heating systems are essential for minimizing energy consumption [3]. Market Size and Growth - The Chinese central air conditioning market has seen continuous growth, with sales reaching 142.9 billion yuan in 2023, an increase of 11.1% year-on-year, and projected to reach 145.8 billion yuan in 2024 [4]. - The production of laminated glass, known for its excellent thermal insulation properties, reached 14.71 million square meters in 2023, with expectations to exceed 15 million square meters in 2024 [5]. Importance of Windows and Doors - Windows and doors are critical components affecting building energy efficiency, accounting for approximately 45%-50% of energy loss in building envelopes [9]. - Poor insulation performance of existing windows leads to significant energy waste, with single-glazed windows causing heat loss of 30%-50% during winter and contributing to 20%-30% of cooling loads in summer [9]. Heating Energy Efficiency Market - Investment in urban heating systems is closely linked to building energy efficiency, with a focus on high-efficiency heating system upgrades and energy-saving optimization of building envelopes [11]. - The fixed asset investment in urban centralized heating has fluctuated between 30-40 billion yuan from 2019 to 2022, with projections for 2024 nearing 40 billion yuan [11].