Data centers are the centralized repositories which store all our data from telecommunications to web hosting. These data centers are found to consume about 31GW of power annually and are the major contributors to the already rising carbon foot print. With \”Go Green\” being the song of environmentalists all over the world today, these data centers have come under scrutiny to find ways to lower their energy consumption. As a result of which energy efficient data centers have evolved in large numbers in the recent years.
Though energy efficient data centers are difficult to manage, they are the need of the hour. There are two areas where energy consumption in data centers needs to be checked
1.The electricity consumed by the servers and computer networks which form the basis of the data center.
2.The air conditioners and other coolants which support the electrical load of the servers and computers.
Power Usage Effectiveness (PUE) and Data Center Infrastructure Efficiency (DCIE) are indexes used to check the efficiency of the green data centers. With growing affinity towards online trading, online gaming, online ticketing etc corporate giants like Microsoft, Google, Yahoo, Face book have understood the need of greener methodologies and built data centers abiding to the indexes mentioned above. Given below are few of the next generation data centers.
1. Yahoo Energy-Efficient Data Center

This green project apart from reducing the carbon footprint has given employment opportunities to people in the region. Owing to the goodness of this initiative, The Department of Energy has funded $9.9 million towards this project.
2. Hitachi Data Center

The Hitachi data center manages power efficiently by installing a number of Eco-friendly tools like water cooled servers and racks, converters of direct current power supply and much more. A rooftop garden has also been maintained to take care of the night cooling. The Hitachi data center has been claimed as one of the robust data centers in the world.
3. Colocation America’s Data Center

4. Syracuse University’s Data Center

In 2007,The Environment Protection Agency predicted an alarming increase in energy consumption by data centers which would double from 2005 and 2010. But thanks to the tremendous awareness on global warming brought about by environmentalists today as a result of which these energy efficient data centers have evolved. Though the predicted levels have not yet been reached, it is high time we as individuals also contribute to the efficient usage of energy for a greener tomorrow.