A computer receives an application and system configuration detailing program applications, operating systems, and when and/or on which system an application may hibernate and/or operate. The computer determines a baseline power consumption of each of the applications on each of the applicable systems and operates the applications on the most energy efficient system. The computer monitors and displays the energy consumption of each application and determines whether the applications capable of hibernation have been idle for a period of time. If so, the computer hibernates the application until the application is awoken. If the application is incapable of hibernation nor idle, the computer compares the consumption to the determined baseline consumption of an alternative system and, if the consumption is greater than the baseline consumption of an alternative system and the application is capable of operation on the alternative system, moves operation of the application to the more efficient system.