Guest Editors
Prof. Zhixiong Ding
Email: zhixding@szu.edu.cn
Affiliation: College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, China
Homepage:
Research Interests: building energy saving and storage technologies, including absorption and latent thermal energy storage, data center cooling, renewable/waste energy utilization, etc.

Dr. Yunren Sui
Email: yunrensui2@cityu.edu.hk
Affiliation: School of Energy and Environment, City University of Hong Kong, Hong Kong, China
Homepage:
Research Interests: novel working fluids of absorption heat pump and absorption thermal energy storage for renewable energy utilization

Dr. Fuxiang Li
Email: fuxiangli2@cityu.edu.hk
Affiliation: School of Energy and Environment, City University of Hong Kong, Hong Kong, China
Homepage:
Research Interests: renewable energy and building energy efficiency, with emphasis on photovoltaic thermal management, heat and moisture transfer in building envelopes, and multiphysics simulation

Summary
Buildings account for a significant portion of global energy consumption and greenhouse gas emissions. Transitioning toward net-zero energy buildings is a critical global imperative for sustainable development. To achieve this, integrating advanced energy-saving methods with efficient energy storage systems is essential to overcome the intermittency of renewable sources and optimize indoor thermal comfort.
This Special Issue aims to provide a premier platform for researchers and engineers to present cutting-edge innovations in building energy efficiency and storage. The scope encompasses novel materials, advanced system designs, and intelligent management strategies that harmonize renewable energy utilization with dynamic building thermal demands. We welcome original research and comprehensive reviews that push the boundaries of current building energy technologies.
Suggested themes include, but are not limited to:
· Advanced thermal energy storage (TES) materials and integration systems
· Renewable energy applications (e.g., solar, geothermal) in HVAC systems
· High-efficiency heat pumps and advanced air conditioning technologies
· Smart thermal management and intelligent building energy dispatch
· Passive building design and next-generation insulation materials
· Techno-economic and life-cycle assessments of building energy systems
· PV thermal management
· Battery thermal management
· Data center cooling
Keywords
building energy efficiency; thermal energy storage; Net-zero energy buildings; HVAC systems; heat pumps; thermal management; renewable energy integration; phase change materials; absorption thermal battery