Establishment of a Methodology to Guide Energy-efficient Renovation of Existing Residential Buildings in China

Energy-efficient renovation has been accepted widely as the best solution for upgrading existing residential buildings. In order to guide such real projects in China and maximize the benefits in energy, environmental and economic fields from the activities, in this article a methodology is developed for decision-makers to assist the design of energy efficient renovation plan in the early stage of design phase. Following the methodology, a suitable energy-efficient renovation plan, integrating all effective and available energy saving measures and as well as excluding all useless and/or unfeasible ones, is put forward for subject building and its effects on the reduction of energy use, CO2 emission and cost are evaluated accurately.