There were two sessions at ManageFusion 2008 in saving energy on clients in the corporate environment. Almost all hands when up when the question was asked "How many of you have a corporate initiative for green IT?"
HP is pursuing a "top down" power management tool from Verdiem Surveyor for the corporate environment as well as a "bottoms up" tool (HP Power Manager" for installation on clients that lets employees see the actual $ impact of their energy savings using a simple slider bar. I will post the HP link for the client tool on my BLOG when it becomes available
Gartner says PCs consume 40% of the power, servers are 22% even though most enterprises think it's the servers
"It's really neat that HP and others are offering tools to shut down systems to save power, but I want my users to be able to use their system as soon as they come to work without waiting for patches..." and the answer from the presenter was "...what you need is Intel AMT... it can wake systems for patching and put them back to sleep..." The audience had not heard of this...
The hard drive password issue that many companies are facing doing wakeup&patch can be solved by Danbury and a good ISV console
The Altiris Backup Exec Recovery solution using WinPE looks very promising