Estimation of Non-Residential Building Energy Consumption

Problem statement: China’s energy consumption is increasing with a high-speed in recent years. Especially since building energy consumption caught pubic eyes and became a crucial problem of society, it forced the public to make estimation in order to reduce energy consumption efficiently. However, it is very difficult to analyze a non-residential building accurately due to China’s statistical collection system and the lack of national surveys. Approach: This study introduced a methodology of estimating various energy consumption factors by building types, energy end-use (electric power, space heating, space cooling and hot water) in each province. The unit energy consumption factors were determined based on sample cities’ data and modification by using software analysis. Take 2006 year for example, the estimation method was introduced. Results: The non-residential building energy consumption in China in 2006 year was estimated by the method above mentioned. Through the result of analysis, we found out that energy consumption of space heating, space cooling and hot water were greatly affected by space Heating Degree Day (HDD), space Cooling Degree Day (CDD) and regional consumer spending per person (Op-c). Conclusion: A series of formulas were obtained. So by using the formulas we can not only estimate the energy consumption now, but also the energy consumption in future. However, this is the first step of our research. It might be hoped that the further surveys and research on energy consumption of China can be done to promote our research result.