I. Introduction  
A. Background  
B. The Energy Challenge in Edge AI  
C. Related Survey Papers and Our Contributions  
D. Paper Organization  

II. Key Tasks of Edge AI and General Design Principles of Green Edge AI  
A. Key Tasks of Edge AI  
B. Breakdown of Energy Consumption  
C. General Design Principles  

III. Energy-efficient Data Acquisition for Centralized Edge Learning  

IV. Energy-efficient Cooperative Training at the Edge Network  

V. Energy-efficient Edge Inference: Paradigms and Algorithms  

VI. Future Research Directions  

VII. Conclusions