Data center managers used to describe their facilities in terms of square footage. All of this has changed, however, and power consumption is now the reference of choice. Data centers consume more power now than ever before. Controlling that consumption can lower your company's bottom line and prolong the construction of a new data center - saving millions of dollars in the long term.

This e-book chapter gives you the tools you need to work with local utility providers and some ways to benefit from utility rebates. You can also read up on how to save energy at the server level and what the EPA is doing to establish Energy Star specifications for the data center. Other topics covered include:

• AC vs. DC power efficiencies
• Using flywheels
• Measuring data center efficiency gains