I have a Windows environment consisting of about 2000 nodes across 60 campus LAN environments connected via an IPSec WAN. Currently, all of my devices are configured to stay on all the time. Driven by the possibility of cost savings, I am investigating the possibility of enabling sleep or hibernation for my devices, and enabling Wake on LAN for all of my software deployment applications and update procedures. I currently use WSUS and SCCM for the majority of these tasks.
What options do I have for enabling the power saving features in Windows. Any pitfalls that I should avoid? I'm confident that I can manipulate the actual powersave settings via Group Policy. I'm just new to this concept, so I'm asking for advice on how to best manage it from a support standpoint.