Internet Explorer 10 (IE10) first came with Microsoft’s Windows 8 OS, and later opened for Windows 7. The browser was a big boost in performance compared to earlier web browsers from Microsoft. Based on a Fraunhofer USA study, Microsoft claims that its new browser is the most energy efficient in the market.

Citing a study done by Fraunhofer Institute’s Center for Sustainable Energy Systems, Microsoft claimed that IE10 consumes 18% less energy compared to Google Chrome or Mozilla Firefox. If all of Chrome and Firefox’s U.S. users switch to IE10, then the saved energy can be used to power up 10,000 households.

However, the energy savings aren’t realized across all browsing activities. In general browsing activities, power consumption across all three major browsers are close. While viewing Flash video, IE10 leads in power savings.

Below are the graphs showing the energy consumption and savings across IE10, Chrome and Firefox on laptops and desktops.