I am sharing some of the resources that I had demonstrated during my session in Green-Hyper Virtualization session.

Green-Hyper: Server energy savings calculator from windows-server-2008-hyper-v-logo-v_2
http://www.hyper-green.com

Microsoft Assessment and Planning toolkit for energy efficient computing
http://technet.microsoft.com/en-us/solutionaccelerators/dd537569.aspx

Visio add-in for virtualization
http://visiotoolbox.com/downloads/gogreen/How-To-Analyze-Rack-Server-Virtualization.pdf

Microsoft Integrated Virtualization ROI Tool
https://roianalyst.alinean.com/microsoft/virtualization/

Performance and Resource Optimization (PRO) in SCVMM 2008
http://technet.microsoft.com/en-us/library/cc764283.aspx