Green Technology

... "The study found that in 2005, total data center electricity consumption in the U.S., including servers, cooling and auxiliary equipment, was approximately 45 billion kWh, resulting in total utility bills amounting to $2.7 billion, with total data center power and electricity consumption for the world estimated to cost $7.2 billion annually. The report also examines the growth in electricity demands since the year 2000, concluding that over the last five years server energy use has doubled. " ...

Study Commissioned by AMD Reveals Scope of Annual U.S. Data Center Energy Consumption: 45 Billion kWh, at Cost of Nearly 3 Billion Dollars