Google recently opened the data center at the site of Stora Enso’s Summa paper mill. The paper production at Summa mill ceased in January 2008, and the internet giant acquired the site early 2009. The purchase price was approximately 40 million Euros.More than 2,000 construction workers, working for 50 companies, worked on the project to convert the paper mill into a data center. The facility is now permanently staffed by about 90 people, most of them Finnish.According to Google, the Hamina data center is one of the most efficient ones in the company's portfolio. /AA