A. SCCM 2007 R3 adds support for power management, enabling granular power policies and reporting of SCCM managed devices. To enable power management, you must do two things. First you must enable the Power Management agent. Navigate to Site Database, <Site>, Site Settings, Client Agents, and open the Properties of the Power Management Client Agent. Check the Enable power management on clients option and click OK.
Next you configure power management, which you do a aollection level. Right-click a collection and select Manage Collection Settings and the new Power Management tab will be shown. Using the Power Management tab, you can select power management settings, including peak times, plans, and if you should wake computers at a certain time (such as to install software). Make your settings and click OK. Note that you can change the plan's configurations through the View button, as shown here.