Improving power efficiency for applications

Minimizing the power consumption of your PC while maximizing the responsiveness and utility (making it “fast and fluid”), is a significant engineering challenge. While it starts with the work we do in Windows to provide support for the right level resource usage, this work requires developers to take resource utilization into account as they develop their apps. Power efficiency applies to all form factors and all usage scenarios—using less power is the right thing to do for everyone.

Read More at Building Windows 8