News FocusEnergy Efficiency

Many More More-Efficient Computers

See allHide authors and affiliations

Science  14 Aug 2009:
Vol. 325, Issue 5942, pp. 807
DOI: 10.1126/science.325_807b

You are currently viewing the summary.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution


One watt in every 50 now goes to powering computers, and industry leaders are eager to keep that figure from growing. Big savings can still be made by using more-efficient power supplies and automatically putting idling computers into an energy-saving "sleep" mode. But although computers' energy demand has increased, that expenditure must be weighed against the savings it brings to other machines such as cars and refrigerators.