Energy Efficiency in Cloud Computing

In the last years cloud computing has become more and more popular. This increase in popularity of cloud services results in higher resource demands on the providers end. More resources means more energy consumption and thus higher electricity bills. To get an idea how much energy is consumed by a cloud service provider we found that Google published their energy consumption in 2011 to have been 2,675,898 MWh [4]. To better grasp this number they compared it to energy usage of an American city:

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