The EE HPC WG drives energy efficiency in HPC for computing systems and building infrastructure. It is a forum for sharing of information and collective action. The WG has 600+ members from more than 20 countries. The WG encourages dialogue and collaboration between computer scientists, facility engineers, vendors and researchers. Output includes whitepapers, research papers and guidelines. There is active collaboration with The Green500, Top500, the American Society of Heating, Refrigeration, and Air Conditioning Engineers and The Green Grid. Team activity includes metrics, workloads, liquid cooling, grid integration as well as energy/power aware job scheduling and resource management.