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Improving the efficiency of existing buildings through building retrofits will help in achieving energy and cost savings. Retrofitting is a high volume low cost approach but still the roadmaps are missing which would ensure the practice of retrofit measures to attain energy efficiency in case of residential buildings. Considering the potential and scope in the residential buildings the study focuses on evaluating the feasibility of these measures so as to suggest outputs to the BEE for the inclusion of retrofits measures in the upcoming ECBC residential codes. Different components and it potential have been reviewed in the study and accordingly the study has been confined to components having highest potential for energy savings. Further retrofit measures related to these components is discussed and techno economic feasibility studies have been carried out to compare the measures. Based on the economic feasibility few results are obtained which could be suggested to BEE for including it in the upcoming ECBC residential codes for existing buildings.
Simulation and evaluation of a baseline building are carried out and further compared with the buildings having retrofitted components. To study the energy consumption pattern of different building systems, perform the comparison and identify alternatives for improvement building energy analysis of a building is required. A standard energy performance framework has been selected among various globally exercised frameworks. Also, E-Quest tool has been used for simulating various cases.
According to the economic feasibility few suggestions are made at the end which can be proposed to BEE for including it in the ECBC residential codes. The suggestions are categorized based on the duration of their payback. Where the feasible measures can be included in the mandatory list and others can be listed under the prescriptive list.
Keywords: Energy Conservation Building Codes, Retrofit Energy Measures, Energy Efficiency Performance Framework, Whole Building Performance, and Existing Residential buildings
