Here is NRDC's study from 2014, looks like it's more solid: http://www.nrdc.org/energy/files/data-center-efficiency-assessment-IP.pdf http://www.nrdc.org/energ

Here is NRDC's study from 2014, looks like it's more solid: http://www.nrdc.org/energy/files/data-center-efficiency-assessment-IP.pdf http://www.nrdc.org/energy/files/data-center-efficiency-asse... Originally I submitted Computerworld story [1], which is a summary of a few studies (including NRDC's), but that submission's url got changed to pdf, and today I got mod-email that it's "a good story to repost", so I posted announcement this time. [1] http://www.computerworld.com/article/2937408/data-center/1-in-3-data-center-servers-is-a-zombie.html http://www.computerworld.com/article/2937408/data-center/1-i...