A Review of Energy Measurement Approaches

Reducing the energy footprint of digital devices and software is a task challenging the research in Green IT. Researches have pro-posed approaches for energy management, ranging from reduc-ing usage of software and hardware, compilators optimization, to server consolidation and software migration. However, optimizing the energy consumption requires knowledge of that said consump-tion. In particular, measuring the energy consumption of hard-ware and software is an important requirement for efficient energy strategies. In this review, we outline the different categories of ap-proaches in energy measurements, and provide insights into exam-ple of each category. We draw recommendations from our review on requirements on how to efficiently measure energy consumption of devices and software