Great findings....

Another way to get an estimation... we can find numbers data centre servers available regardlesss of size of the data centres.

Suresh was giving us really rough estimate... in reality cost savings are much more than what Suresh was telling us ...check this link

http://www.extremetech.com/extreme/161772-microsoft-now-has-one-million-servers-less-than-google-but-more-than-amazon-says-ballmer

A big complany can save easily $2-3B/year in power if they use our links.