Survey on energy consumption of air conditioning in summer in a residential building in Beijing

Presents a weekly investigation result. Finds out that most of air conditioners in the building are functioned in a short period leading to relative low energy consumption level though there are so many room air conditioners equipped in the residential building. The difference of energy consumption among households in this building is quite large. Twenty percent of residents consume about seventy percent of the energy for cooling in the building. The Gini coefficient of energy consumption of air conditioners among households in this building is 064. The operation mode of air conditioners is the most important factor impacting energy consumption in residential buildings. The increasing potential and the decreasing potential of energy consumption for cooling in residential buildings in China are great.