Data center managers are concerned about going green because doing so potentially saves a lot of money. There are altruistic reasons for going green, but from a business standpoint, measuring your power usage effectiveness (PUE) and reducing the amount of power a data center consumes allows companies to be more efficient power consumers. This focus on energy efficiency yields savings that can be seen on the bottom line.
There are other ways to find dramatic bottom line savings that have nothing to do with energy use. Recycling is green, especially when recycling real estate. Finding inexpensive real estate and converting it for data center hosting can potentially save lots of money that shows up as bottom line savings. But you have to think creatively to find esoteric yet compatible real estate sources. That is exactly what data center providers Vaultas and Cavern did.