Power and energy are now recognized as first-order constraints in high-performance computing. Optimizing performance under power and energy bounds requires coordination across not only the software stack (compilers, operating and runtime systems, job schedulers) but also coordination with cooling systems and outwards to electrical suppliers. As we continue to move towards exascale and extreme scale computing, understanding how power translates to performance becomes an increasingly critical problem. The purpose of this workshop is to provide a forum where cutting-edge research in the above topic can be shared with others in the community. We welcome submissions addressing power aware computing issues. All papers will be subject to single-blind peer review, and the quality of standard papers is expected to be high.