Data Center Knowledge reports: "The cost of building a new data center is extremely high — between $40 million and $60 million. As an alternative, we are considering placing high-density servers on racks in a container similar to those you see on container ships and trucks. We estimate that the same server capacity in this container solution will reduce facility costs by 30 percent to 50 percent versus a brick-and-mortar installation. Because it’s a small, contained environment, cooling costs are far less than for traditional data centers. Even if we build a warehouse-like structure to house the containers (thus addressing security and environmental concerns), the cost is dramatically less per square foot. In fact, the difference is so great that with this solution, brick-and-mortar data centers may become a thing of the past."
I have been following this technology for a few years, when on November 17, 2005 Robert X. Cringely reported: "in one of Google's underground parking garages in Mountain View. There, in a secret area off-limits even to regular GoogleFolk, is a shipping container. But it isn't just any shipping container. This shipping container is a prototype data center."
I got even more excited about the technology when Sun introduced 'Project Blackbox', because they really showed the potential of this technology. Check out the site for more information.