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Site selection <br />Aspects such as proximity to available power grids, telecommunications infrastructure, networking <br />services, transportation lines and emergency services can affect costs, risk, security and other factors to <br />be taken into consideration for data center design. Location affects data center design also because the <br />climatic conditions dictate what cooling technologies should be deployed. In turn this impacts uptime <br />and the costs associated with cooling. For example, the topology and the cost of managing a data center <br />in a warm, humid climate will vary greatly from managing one in a cool, dry climate. <br />Energy Use <br />Energy use is a central issue for data centers. Power draw for data centers ranges from a few kW for a <br />rack of servers in a closet to several tens of MW for large facilities. Some facilities have power densities <br />more than 100 times that of a typical office building. For higher power density facilities, electricity costs <br />are a dominant operating expense and account for over 10% of the total cost of ownership of a data <br />center. By 2012 the cost of power for the data center is expected to exceed the cost of the original <br />capital investment. <br />Recent Minnesota Maior Data Center Successes <br />Recent data center activity in Minnesota includes the following projects: <br />United Health <br />Group <br />Thomson Reuters <br />Target <br />United Health <br />Group <br />Unisys <br />Iron Gate <br />Solutions <br />• Page 3 <br />Chaska <br />Eagan <br />Elk River <br />Elk River <br />Eagan <br />Woodbury <br />2010 <br />2007 <br />2007 <br />2007 <br />2007 <br />2010 <br />250,000 sf <br />50,000 sf <br />161,300 sf <br />237,000 sf <br />130,000 sf <br />80,000 sf <br />$250 million <br />$140 million <br />$125 million <br />$125 million <br />