Trends in energy performance certificate data: A comparative study of building stock characteristics
Year: 2024
Type: conference-paper
Abstract: Energy performance certificates contain a lot of valuable information for a vast number of buildings across the globe. The increasing number, quality and accessibility of EPC-data enables promising and manifold opportunities for the utilization in urban building energy modelling approaches. This paper presents an update of a representative building approach using archetypes based on new EPC-data. For this, the building stock is divided according to categories, namely the building condition (renovated, not-renovated), construction period and building type (single-family house, multi-family house). The data analysis indicates a shift towards the renovation of buildings, with an almost exponential increase of EPCs in general, and of EPCs for renovated buildings in particular. Regarding the energy carrier, a clear trend away from fossil fuels towards renewable energy can be observed, with electricity (heat pumps) being accountable for the highest share in single-family houses and district heating in multi-family houses. A comparison of U-values for different building elements in relation to the upload year suggests that buildings may have undergone (partly) renovations without issuing a renovation EPC. In this regard, further investigations are necessary to rule out statistical uncertainties. The results of this analysis can serve as an input for urban building energy modelling approaches.
Source: Proceedings of BauSIM
Authors: Daniel Heidenthaler, Markus Leeb
Institutions: TU Wien, Fachhochschule Salzburg
Language: English
Subfield: Building and Construction
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4404655324