Abstract: Managing power expenditures for hosting computer applications. A smart meter can receive electricity pricing information for a data center or other group of computing resources that host computer applications, such as a cloud computing environment. An application manager to determine how much electricity can be saved by operating the applications at a reduced performance level without compromising performance metrics for the applications. A site broker can determine how to sequence the performance levels of the applications to meet an electricity usage budget or to otherwise reduce electricity consumption or costs, for example during a peak load time period. The site broker can also select one or more applications to migrate to another cloud to meet the electricity usage budget or to reduce electricity consumption or costs. A hybrid cloud broker can interact with the site broker to migrate the selected application(s) to another cloud.