Google reveals energy use to show search is green

NEW YORK (AP) ? Google has revealed how much electricity it uses and other information about its energy use and carbon emissions in response to concerns that power-hungry data centers are causing environmental harm.

Google is also trying to show that its services such as Youtube, which store information in distant data centers, are far more environmentally friendly than alternatives such as watching a DVD, which had to be manufactured, packaged, and shipped.

Experts say so-called cloud computing, championed by Google, Microsoft, and others, is indeed more efficient.

Google says it used 2.3 billion kilowatt-hours of electricity last year, about the same as what 207,000 U.S. homes would use in a year. That puts Google in line with a big chemical company, but far behind bigger power users such as oil companies and automakers.