Multiple benefits of renovation in buildings - PU Europe

Multiple benefits of investing in energy
efficient renovation of buildings
Appendix A
Calculating the benefits from energy efficiency
investments
In this appendix we present the assumptions and calculations behind our assessment of
the benefits related to investments in improving energy efficiency in existing buildings.
Our point of focus is on energy efficiency improvements through renovating existing
buildings. Concretely, this could for example be through floor and wall insulation, replacing
windows and window frames and replacing heating systems. We do not focus on the
efficiency potential that exist through replacing old appliances such as washing machines
and refrigerators with more efficient ones. We do, however, consider ventilation systems
and air conditioning, as such installations are typically a more integral part of buildings.
A.1 General description of our modelling approach
Enhancing the energy efficiency of the existing building stock induces benefits through
several channels. While some of these benefits occur directly through e.g. reduced energy
consumption, other benefits occur more indirectly through e.g. improved health over
several years. In addition, some of these benefits have direct positive effects on public
budgets while others are benefits to society at large without having specific public finance
effects. Our mapping of the different benefits is presented in Figure A.1, and discussed in
the following section.
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