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Energy savings potential for space heating in public buildings in Slovakia

Panel: 6. Buildings policies, directives and programmes

This is a peer-reviewed paper.

Authors:
Katarína Korytárová, Institute for Forecasting of the Slovak Academy of Science, Slovakia
Ivan Knapko, Slovak Innovation and Energy Agency, Slovakia
Kvetoslava Šoltésová, Slovak Innovation and Energy Agency, Slovakia

Abstract

Public buildings, being approximately 15,000 in number and largely neglected in terms of maintenance and major renovation, may provide a considerable energy savings and mitigation potential in Slovakia. Although several programmes have been providing funding for major renovation in public buildings in the last decade (through structural funds and other sources such as BIDSF and Munseff programme), and public sector is undergoing a reform aimed at its down-scaling, vast majority of the public buildings are still in a poor technical state. The paper shows the results of an analysis of energy savings potential in public buildings in Slovakia until 2030. The analysis is based on a bottom-up model used for a similar analysis in Hungary (Korytarova 2010). Both models use performance-based approach to modelling energy consumption. The model was updated and adjusted to national conditions. Scenario assumptions of the two models differ as well. The analysis utilises i. a. the results of a sample of approximately 250 energy audits. The analysis shows that increasing the annual retrofit rate to 3% for the whole public building stock may not be economically effective, not even in the long run (2050). Due to currently high specific investment costs cost effectiveness can be reached only with lower rates. The research implies that first, suitable policies must be implemented, especially those ensuring quality of renovation projects as well as significantly higher share of buildings renovated to highly energy efficiency levels. These may include financial mechanisms providing support depending upon projected or achieved savings. Only then, rates of renovation can be increased, e.g. through provision of new funding. The analysis was conducted within the project „Support for instruments for the introduction and optimization of measures in the area of energy efficiency in public buildings”, which was financed by structural funds and operated by Slovak Innovation and Energy Agency.

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