Away Mode is not a power management state, but a way to make a computer appear to be off while it is still available to share media and/or record broadcasts.
Note that there are two modes that put a Windows PCs into a low power state: Sleep and Hibernate. Power Management items set through a Local Policy or through Domain Group Policy cannot be managed by users through Control Panel or powercfg.exe. Power management settings can also be configured on Windows PCs from a Local Policy or a Windows Domain Policy. I have installed the appropriate Group Policy ADMX templates for Windows 10 version 1511 into my AD central store but still can't find the option. This is for a tablet running Windows 10 Enterprise version 1511. They will also be applied if no user is logged in. On battery power, stay connected to Wi-Fi while asleep. This means that any settings changed, whether by a user or by Group Policy, will be applied globally to the system no matter who is logged in. Windows power management settings became machine-based rather than user-based after Windows XP. When used in combination with Windows Server (2008 and up), these operating systems make it easy to manage computer power consumption organization-wide (PDF, 273.92 KB).
Power Management settings in Windows 10, 8, 7, and Vista can also be controlled through Group Policy. Activating Power Management in Enterprises with Windows Group Policy
