"Although better hardware design can reduce energy consumption, companies must also take into account the utilization of their IT equipment. The utilization rate of certain types of servers can typically be only 20%. Underutilized systems expend a lot of energy on non-business purposes, thus wasting a major investment. Virtualization and consolidation can help utilize the entire capacity of your IT equipment."
— Quote found in an IBM Redbook titled “Smarter Data Centers Achieving Greater Efficiency”
