Phase-Level Power Management in an Information Technology Facility

Techniques are provided for managing the infrastructure (power distribution chain) of an information technology (IT) facility, sometimes referred to herein as a data center, comprising hierarchically arranged low-level and higher level components. This power distribution chain management occurs at the phase-level (i.e., at each of the phases of power that are utilized in the power distribution chain). In one example, characteristics representing the consumption of power of one or more of the low-level components are obtained. Based on the obtained characteristics, the power consumption for each of a plurality of the higher-level components is determined. Based on the power consumption determined for each of the plurality of higher-level components, a global power consumption, at the phase-level, for the entire power distribution chain is determined at the one or more low-level components.