Energy efficiency in data processing centers

Abstract

On a global scale, IT equipment is responsible for 2% of CO2 emissions, the same quantity as that emitted by the totality of airline companies world-wide. Furthermore, and as a point of reference, electricity consumption by data processing centers in the USA constitutes approximately 2% of total national electricity consumption. This high rate of consumption implies that IT is currently the second most contaminating industry on the planet, surpassed only, once again, by the aeronautical industry. However, given its present rate of growth, IT will shortly head the list. This article assesses the present and future situation of IT center energy consumption and associated environmental effects, and also looks at how state-of-the-art technology, correctly implemented, could ensure significant rationalization of data processing center energy consumption. The article will examine optimization techniques, specific problems and case studies.