The inconvenient truth about data centers is that they consume lots of power. In addition to running a building-full of systems and storage devices 24/7, power is also consumed for networking equipment, cooling, battery backups, and even to support more modest human needs, such as lights and coffee makers. Both economically and socially, the United States is growing more conscientious of the need for power conservation. That’s where programs like Energy Star take an active role. You’ve probably seen Energy