The Economic Challenges of Deep Energy Renovation: Differences, Similarities and Possible Solutions in Central Europe—Austria and Germany (OR-16-006)

Within EBC Annex 61: Business and Technical Concepts for Deep Energy Retrofit of Public Buildings are developed to increase pace and quality of DER projects in the public sector. Subtask A targets is to assess accomplished DER projects to define find optimized bundles both from energy efficiency and economical perspective in each of the participating countries. Based on general assumptions defined by the Annex 61 team, modeling studies for different types of buildings and different climate zones have been done. The paper describes the base lining and modeling process, the economic assumptions made for energy prizes, maintenance and other operating costs and consider the investment costs, the cost optimization process and the carbon footprint of the scenarios. The measure bundles resulting from the modeling are described.