-- Designing for low power has become increasingly important in a wide variety of applications, including wireless telephony, mobile computing, high performance computing, and high speed networking. Despite reductions in power supply voltages, power consumption continues to rise and demands increased support from EDA tools and methodologies. Various tools have emerged to address different levels of the power problem, yet conventional methodologies often focus on the low leverage aspects. This paper will survey existing commercial tools used in low power design and present them in the context of an architecture focused low power design methodology.