The Real Green IT Machine
This is a Darden case study. A large bank is attempting to cost justify a proposed, large (60,000 sq. ft.) data center based upon energy savings achieved through "green" technology, principally through water cooling and energy recovery. The investments total about $100 million, offset somewhat by funds recouped from the closing of an older facility. The new building is expected to open with 700 racks of server computers. The power consumed by each rack costs more than the amortized cost of the computers themselves. The bank expects a 12% return on discounted cash flows.