INFLUENCE OF REBOUND EFFECTS ON THE ACHIEVEMENT OF ENERGY SAVING TARGETS AFTER AN INCREASE IN ENERGY EFFICIENCY ON NON-RESIDENTAL BUILDINGS

This article draws attention to rebound effects, which are responsible for missing the planned energy savings after an increase in efficiency. For residential buildings already exist wide scientific studies to rebound effects after a thermal retrofit. This article present first findings to rebound effects in non-residential buildings. Methodology. It is presents a methodology for the determination of rebound effects and their causes in non-residential buildings. In addition to the mathematical calculation of the rebound effects semi-structured-interviews to identify the causes were describe. Conclusions. This article focuses on four office and administrative buildings with regard to their actual and calculated building heat pre- and post-thermal-retrofit and comes to the conclusion that even in non-residential buildings rebound effects are to be expected. However, the causes differ significantly compared to residential buildings. Originality. For the first time a methodology for the determination of rebound effects and its causes has been developed for non-residential buildings and tested on case study objects. In addition, the obtained results compared with literature review for non-residential buildings and residential buildings. Practical value. These article gives information on whether rebound-effects exists after a thermal retrofit and in the case these effect exist it renames possible reasons of this effect.