Report: Data centers ate up less power than thought

Report: Data centers ate up less power than thought

Summary: New research commissioned by The New York Times suggests that data center electricity consumption grew more slowly from 2005 to 2010 than the EPA expected it would.


(Post updated Monday, Aug. 1, to include link to Koomey's new research.)

It may be time to revise the figures we keep tossing around about the huge appetite of data centers when it comes to electricity. An article in The New York Times based on research by Stanford University professor Jonathan Koomey suggests that the global recession, combined with the fast emergence of server virtualization technologies and more power-efficient microprocessors, have helped curb the demand for electricity.

That's not to say that data center power consumption isn't growing. According to The New York Times article, Koomey's study of data center power consumption from 2005 to 2010 found that electricity usage increased about 56 percent during the time period. In the United States, the growth rate was 36 percent.

The point is that both of those rate are far slower than the figures predicted by the U.S. Environmental Protection Agency back in 2007. That report sounded the alarm for a doubling of electricity consumption related to data centers. The EPA figured it would take 100 billion kilowatt-hours of electricity at an annual cost of $10 billion to power all those email servers, Internet service providers and data centers during the five-year period in question.

The Times quotes Professor Koomey:

"Mostly because of the recession, but also because of a few changes in the way these facilities are designed and operated, data center electricity is clearly much lower than what was expected, and that's really the big story."

I personally welcome this revelation, and plan to spend some more time with the report, which you can find here in detail.

Certainly, the slower economy was a factor in slowly electricity consumption group, although we don't really know how much. But the fact that power consumption was slower than expected is a great tribute to all the work on energy-efficiency that has been going on across the IT industry. Now, if we could just figure out how to make renewable energy a bigger part of the data center equation.

Topics: Hardware, CXO, Data Centers, Storage

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  • No s**t, Sherlock.

    The idea that the government got something wrong is about as dog-bites-man as it gets. They continually assume that there will never be any technological improvements to reduce power consumption; and they fail to reckon with the desire on the part of the private sector to reduce their costs. Government is inherently stupid. It has little motivation to properly analyze the private sector; worse yet, the bureaucratic mentality cannot wrap its mind around how a free-enterprise system really works.<br><br>You buried the lede in this story. Business knows that cutting expenses maximizes profit; thus, they have a continuous motivation to find ways to reduce data center expenses. The real story is in the data center design changes that are pushing energy savings. For example, the hot-row/cold-row design of the newest data centers reportedly shaves nearly 25% off power usage. And that's not to mention the impact the newest servers, using lower-voltage CPUs, are having on consumption.<br><br>Other than that, it was a fine story.
  • Need to research report data in more detail

    What the Gov estimate did originally was to highlight to everyone that while data centre demand was ballooning, pressure of CTO/CIO's to look at cutting their power usage was sounding alarms. Result- the new report showed that even with ever more data centres, massive demand for these resources and the need to keep hardware running for longer with less easy to sanction funds that centre users have responded with gusto.
    Not just dramatically more efficient new centers but serious investment and low tech solutions into their existing ungreen centers are paying off.
    Sometimes it takes a gov report to highlight what business's have ignored in a boom, interested the media/academics/suppliers into offering advice and solutions and showed to directors that the funds they released to green the centers are paying off.