EPA Reports Significant Energy-Efficiency Opportunities for U.S. Servers and Data Centers

Aug. 30, 2007

A new U.S. Environmental Protection Agency report shows that data centers in the United States have the potential to save up to $4 billion in annual electricity costs through more energy-efficient equipment and operations, and the broad implementation of best management practices. The Report to Congress on Server and Data Center Energy Efficiency recommends priority efficiency opportunities and policies that can also lead to additional savings using state-of-the-art technologies and operations.

Data centers are facilities that contain IT equipment (computing, networking, and data storage equipment), as well as power and cooling infrastructure. They are part of our critical national infrastructure, found in nearly every sector of the economy, including banking and financial services, media, manufacturing, transportation, education, healthcare, and government.

Findings from the report include:

  • Data centers consumed about 60 billion kilowatt-hours in 2006, roughly 1.5 percent of total U.S. electricity consumption.
  • The energy consumption of servers and data centers has doubled in the past 5 years and is expected to almost double again in the next 5 years to more than 100 billion kilowatt-hours, costing about $7.4 billion annually.
  • Federal servers and data centers alone account for approximately 6 billion kilowatt-hours (10 percent) of this electricity use, at a total electricity cost of about $450 million per year.
  • Existing technologies and strategies could reduce typical server energy use by an estimated 25 percent, with even greater energy savings possible with advanced technologies.

As the U.S. economy increasingly shifts from paper-based to digital information management, data centers have become a vital part of business, communication, academic, and governmental systems. Over the last 5 years, the increase in use of these systems, and the power and cooling infrastructure that supports them, has doubled energy use, increased greenhouse-gas emissions, and raised concerns about power-grid reliability.

In December 2006, Congress requested that the EPA develop the report to examine market trends in the growth and energy use of servers and data centers. The report complements EPA's ongoing efforts to develop new energy-efficient specifications for data center equipment as well as explorations into a new ENERGY STAR® building benchmark for data centers that reflects whole building operations. More information and a copy of the report is available at

This information was provided by the U.S. Environmental Protection Agency. To find out more, visit (http://www.epa.gov/).

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