Cost-Effective Refurbishment of Residential Buildings in Austria
E. Stocker and D. Koch, University of Applied Sciences Kufstein, Kufstein, Austria
Abstract
This chapter represents a study of cost-optimal building renovation arrangements regarding the heating energy performance. The study is based on typical residential buildings with different building ages and therefore different constructions. The calculation method is compiled on the basis of the standard energy demand and the net present value (NPV) method. The results show that the cost-optimal performance lies at an annual heating energy demand (HED) of about 50 kWh/m2. The building age with the different construction qualities has a high effect on the results of the NPV. ...
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