Energy consumption of residential buildings in China

Abstract

Based on Chinese statistics, unit energy consumption for 277 Chinese cities was clarified over the period of 2002-2012. The meter reading of energy consumption showed that annual energy consumption was recorded from 10 to 30 GJ, excluding the energy consumption by the district heating. Roughly one third of the energy consumption was used for cooking, and another one third was used for space heating, cooling, and hot water supply, and the final one third was used for the other purposes. The results of the detailed measurement indicated that in the eight apartments without district heating, the annual energy consumption varied from 8 to 32 GJ. Also, it was observed that there are large variations in the structure of end usage. That implies that there is room for further improvement in saving energy.