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Report on environmental and economic advantages of NZEBR compared to traditional renovation

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The IEE NeZeR project promotes the implementation and smart integration of Nearly Zero Energy Building Renovation (NZEBR) measures and the deployment of Renewable Energy Sources (RES) in the European renovation market.


In order to achieve the NZEBR potential in partner cities there is a need to estimate and analyse the environmental and economic aspects regarding NZEBR in comparison with traditional renovation. The purpose of this report is to show the environmental and economic effects of a NZEBR alternative in comparison with the traditional renovation alternative in the partner countries.


In this report the environmental advantages of NZEBR were analysed using LCA (Life Cycle Analysis) methodology. The economic advantages of NZEBR were analysed using LCC (Life Cycle Costing) and CBA (Cost Benefit Analysis) methodologies.


Both advantages, as well as analysis of the possible advantages, resulted from the main indicators (CO2-equivalent savings through implementation of the NZEB renovation measures to a building country reference in comparison with the energy cost savings, NPV, IRR) are presented. The calculations have taken into consideration the specific coefficients and different financial supports available in each partner country for increasing the building performance and RES deployment.


The results of this report have been used as input for creating the NZEBR Action Plans of cities participating in the project.