GreenTech 2011 – Conference on Green Computing addresses key issues and topics related to energy efficiency in computing and promoting environmentally friendly computer technologies and systems. The conference aims to provide a forum to a wide audience for discussing, sharing and investigating all aspects of green computing, which include energy-efficient use of computers, design of algorithms and systems for environmentally-friendly computer technologies, and wide range of related topics. The conference will publish papers pertaining to hardware and software systems, algorithms, applications as well as power, energy and temperature related research areas of current importance to researchers, engineers and practitioners. The conference is also a part of our efforts to generate awareness among the Information Technology community and to spread the concepts of greening the IT environment. The conference will hold forums and workshops on hot topics related to how the carbon footprint of computing can be reduced and how computers can contribute to the environment and overall well being of the planet