Energy-efficient networking, circuits, devices and transmission technologies
                            Energy efficiency of data centers and intelligent cloud computing
                            Cross-layer optimizations to minimize energy consumption on a network scale
                            Cognitive, cooperative and reconfigurable networks
                            Protocols and protocol extensions for energy efficient networks
                            Network load balance and smart information storage
                            Remote power management for wireless terminals and access networks
                            Hierarchical and distributed techniques for energy managemen
                            Harvesting distributed energy generation
                            Smart Grid
                            Information theory on energy efficiency
                            Energy evaluation and comparison of different network technologies
                            Novel network concepts and architectures lowering the overall footprint of ICT
                            Estimation and evaluation of the worldwide footprint of ICT
                            Regulation and standardization
                            Deployment, trial experience, business models and applications