Data center virtualization, which includes storage, desktop, and server virtualization, reduces overall IT equipment electrical load through consolidation of systems. The resulting energy savings can be further maximized if IT or facilities managers adjust the power and cooling infrastructure to accommodate the reduced loads. Planning for this cycle of initial reduced load followed by load growth with IT equipment running at much higher overall utilization levels can result in the capture of a significant, supplemental energy savings entitlement. This paper provides guidance on how data center professionals can maximize power and cooling equipment electrical savings in a virtualized, consolidated data center environment.