Building typologies can serve as a basis for analysing the national housing sector. During TABULA seven of the project partners carried out model calculations which aimed at imaging the energy consumption and estimating the energy saving potentials of their national residential building stocks (IWU / Germany, NOA / Greece, POLITO / Italy, VITO / Belgium, STU-K / Czech Republic, SBi / Denmark, ZRMK / Slovenia).

The partners chose different modelling approaches depending on the available statistical data. Some defined a set of synthetical buildings reflecting building stock averages, others were applying a set of “generic” example buildings from the national TABULA typologies.
The results show that the model calculations can provide plausible projections of the energy consumption of the national residential buildings stock. The fit of model calculations and national energy statistics is satisfactory, deviations can often be explained and corrected by adapting standard boundary conditions of the applied calculation models to more realistic values.

Some partners made estimations of possible energy savings, e.g. by applying “standard” or “advanced” packages of energy saving measures to the whole building stock. In that way high potentials of energy savings and CO2 reduction in the residential building sector could be documented.