从建筑节能到绿色生活：一场长达20年的绿色建筑竞赛，见证中国低碳转型的“风与潮”

Core Insights - The "Delta Cup International Solar Building Design Competition" has played a significant role in promoting low-carbon transformation in China's architecture industry over the past 20 years, showcasing the evolution of solar energy applications and low-carbon technologies from concept to practical implementation [3][4] Group 1: Project Overview - The "Twenty-Four Villages under the Sun and Moon Mountain" project, which emerged from the Delta Cup competition, has become a popular destination, operating as a guesthouse and achieving a photovoltaic self-use rate increase from 35% to 85% after the installation of a smart microgrid system [2] - The project has also led to a 40% reduction in electricity costs, addressing the high heating expenses faced by local residents during winter [2] Group 2: Historical Context and Impact - Over the course of 20 years, the Delta Cup competition has seen participation from over 90 countries and 12,132 teams, resulting in 2,636 valid submissions and the construction of 7 winning projects [4] - The competition aims to instill energy-saving and environmental protection concepts in students, influencing their future architectural practices [4] Group 3: Technological Advancements - The cost of crystalline silicon, a key material in solar energy, has significantly decreased from approximately $40 per kilogram in 2005 to around $4-5 per kilogram today, marking the entry of solar energy into a "grid parity" era [5] - Delta has implemented a carbon management strategy, achieving carbon peak in 2017 and setting ambitious goals for carbon neutrality by 2050, including the establishment of energy storage systems to support renewable energy consumption [8] Group 4: Future Trends - The trend towards zero-carbon factories and parks is gaining momentum, with national standards for zero-carbon industrial parks being developed, indicating a shift towards industrial green and low-carbon practices [9] - The broader definition of "green" architecture now encompasses not only energy efficiency but also the discovery and application of green technologies in everyday life [9]