Volume 58

Research on Energy-Saving Retrofits for Existing Public Buildings in Shenzhen：A Statistical Study Jiachi Yan, Yongcong Guo, Guanjing Lin

Abstract

The carbon emissions from the construction sector account for a large proportion of the total carbon emissions in society. Energy-saving retrofitting of existing buildings has become an important means to achieve carbon reduction in the construction sector. This study statistically analyzes the basic conditions, retrofitting measures, and retrofitting effects of 76 projects in a retrofitting practice in Shenzhen. It summarizes the practical experiences in retrofitting existing public buildings. The analysis reveals that the measures for light systems, domestic hot water, and air conditioning systems were widely adopted in these energy-saving projects, with generally positive results. The energy-saving rates were mostly concentrated in the range of 0-20%. Moreover, this study analyzes building retrofitting policies from Shenzhen and compares them with actual practices. It serves as a reference for future building energy-saving retrofit strategies.

Keywords building carbon reduction, building energy-saving, retrofitting measures, retrofitting strategies, statistical analysis of building renovation projects