Green Computing Wanted: Electricity Consumptions in the IT Industry and by Household Computers in Five Major Chinese Cities

Exhausted energy consumption becomes a world-wide issue nowadays. Computing contributes a large portion of energy consumption. The concept of green computing has been popularized. Along with the rapid development of China, energy issue becomes more and more important. We believe that green computing would play a very important role in China. However, past publications mainly focused on electricity consumption in data centers, while there are other important sources of electricity consumption in computing. The concept of green computing should be also applied to these sources. In this paper, we present and analyze the data on the electricity consumptions in the IT industry (including the telecommunication and computer industries) and by household computers in five major Chinese cities during 2005-2009. The analysis will demonstrate the necessity of green computing in the IT industry and in household computers in China.