9. The feds could save around $960 million over five years by adopting green technologies like virtualization, server consolidation, and dynamic smart cooling.
10. During a December briefing with then President-Elect Barack Obama, IBM CEO Samuel J. Palmisano recommended that Obama require that all federal datacenters go green in the next three years.
11. Among high-end servers, midrange servers, networking equipment, and storage devices, storage devices have the highest power consumption growth rate (191 percent) and the highest overall power consumption (3.2 billion kWh), according to the EPA.
12. When transforming a former underground military bunker in Uitikon, Switzerland (outside Zurich), into a data-storage facility, GIB and IBM devised a direct heat exchange between the datacenter and local public swimming pool. The pool is kept warm, for free, by the datacenter's waste heat, saving approximately 130 tons of carbon emissions in the process.
[ Learn more about how companies are putting datacenter heat waste to good use. ]
13. In 2007, Google filed a patent for a floating datacenter that would be located three to seven miles from shore. The design incorporates the Pelamis Wave Energy Converter units, which use the motion of ocean surface waves to create electricity. Google's patent envisions combining 40 or more Pelamis units to crank out 40MW of power. Beyond the free source of power, there would be no real estate or property taxes for the facility.
Green IT for PCs and peripherals
14. A PC with a screensaver going can use well over 100W of power, compared with only about 10W in sleep mode. That's why powering down PCs in your home or office makes more sense from both an environmental and cost-saving perspective.
15. Companies can save between $25 and $75 (or more) on power bills per PC per year by powering down machines when they're not in use.
16. High-efficiency PCs and servers may cost slightly more than standard systems. Climate Savers expects that price difference to be less than $30 per system, noting that the cost premium today for Energy Star desktops looks to be about $20. The group predicts that as unit volumes increase, these costs will come down to near zero. Even at modestly higher initial cost, the more efficient systems will pay for themselves through reduced energy costs.
[ Find out whether green systems are worth the price premium. ]
17. The feds could save about $330 million over five years using Energy Star-rated PCs.