December 13, 2007, 2:08 PM — An AMD study has revealed fascinating changes to global data center energy
use, suggesting that even small shifts in operational procedures could cut new
The study, conducted by Dr. Jonathan Koomey and using data from industry analyst
firm IDC, documents energy use across five regions: the United States, Western
Europe, Japan, Asia/Pacific (excluding Japan) and the rest of the world.
It forecasts data center energy consumption, estimating that by 2010 US consumption
will decline relative to consumption worldwide from 40 percent in 2000 to about
one-third by 2010. The Asia/Pacific region (excluding Japan) will increase its
share from 10 percent to about 16 percent over that period.
AMD estimated that the absolute electricity consumption for servers in the
Asia/Pacific region under this scenario will more than double from 2005 to 2010,
requiring electricity capacity equal to output from two new 1,000MW power plants
- which is unsurprising given the rate at which those economies are growing.
For the entire world, server consumption from 2005 to 2010 would require additional
capacity equal to more than 10 additional 1,000MW power plants.
Koomey's report shows that electricity used by servers in the United States
and Europe currently comprise about two-thirds of the world's total, with Japan,
Asia/Pacific and the rest of the world each falling at between 10 and 15 percent
of the total.
Examining electricity use by region from 2000 to 2005, the study found that
server electricity use in the Asia/Pacific region (excluding Japan) grew at
a 23 percent annual rate, compared to a world average of 16 percent a year,
making this region the only one with server electricity use growing at a rate
significantly greater than the world average.
The Western European growth rate of 17 percent was slightly above the world
average, while growth rates in the other regions were lower than the world average.
Data centers throughout the world are designed and operated in similar ways
to those in the United States, AMD said. The chip company reckoned that, if
the 20 percent savings estimated in the EPA report are applied to Dr. Koomey's
projections for global data center electricity use in 2010, total savings would
equal approximately five 1,000MW power plants. In other words, relatively modest
changes in the way data centers are designed and operated could offset approximately
half the expected growth in global data center electricity use in 2010.