Light-Storage Direct-Flexible Systems for Low-Carbon Buildings

The document discusses the urgency of building energy conservation under China's dual carbon goals, highlighting that the construction sector accounts for 40% of total energy consumption. It emphasizes the development of light-storage direct-flexible systems, which integrate photovoltaics, energy storage, DC power distribution, and flexible loads to enhance energy self-sufficiency and reduce grid dependence. The system features high-proportion photovoltaic integration, safe energy storage, low-voltage DC distribution, dynamic bus voltage stability, diverse flexible loads, and deep grid interaction. Policy support from national and local levels is outlined, including plans for near-zero energy buildings and carbon peak actions. The company, Xiongan Xu Relay Technology, collaborates with Tsinghua University and other institutes on key technologies for grid-friendly low-carbon building interactions. The document explores advantages of user-side low-voltage DC, such as flexible topology, efficient energy transmission, and growing industry standards. Overall, it presents a comprehensive approach to achieving low-carbon building operations through innovative energy systems.