Stock modelling of residential appliance energy considering technology and occupant behavior evolution: case study of television in urban China

Abstract

During the last decade, the energy consumption of residential appliance has grown rapidly in China and accounted for 20% of total urban residential energy consumption in 2015. Many studies show that the occupant behavior has a great influence on the appliance energy consumption. Due to the changes of Chinese residents’ lifestyle, the total energy consumption of residential appliance has changed a lot, so it is an important factor when we select the technology roadmap and make policy suggestions. For existing research of macro energy modelling, there is less consideration on occupant behavior. So we develop a new macro energy model to analyze the residential appliance in urban China, considering the influence of both technology and occupant behavior. This research developed a bottom-up model and did a case study on China urban residential television. The energy consumption of television in China urban households was calculated and scenarios are established to analyze the related policy suggestions. For model input, we got the panel data by conducting many regional range or nationwide survey during 2008∼2015, and arranging the data from yearbook or database. The survey and modelling analysis output the total residential television energy use in urban China by different technology, different province and different occupant behavior. The results show that total energy consumption of television starts to decline from 2011, this is mainly due to the continuous decrease of television watching duration in China urban households and the technical progress. For other appliance, the occupant behavior should also be carefully considered by researchers and policy makers.