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To be able to deduce the overall energy reduction caused by the Class1 intervention it is necessary first to
establish the energy consumption as it would have been in case no energy savings had been implemented.
For the new buildings, this has been calculated based on the assumptions that without the special Class1
requirements they would have been built according to the requirements in the Danish Building regulations.
For the existing buildings reliable monitored data did not exist and the "before" energy consumption is
based on the "Energy labelling" scheme in Denmark ­ the Danish implementation of the EU Building
Perfornance Directive. There was no RES contribution in this scenario. The summary result is presented in
Table 12.
Table 12. Conventional energy consumption of the community with no intervention.
The overall result of the implementation of the RUE and RES measures at the Class1 Community is shown in
Table 13 and Fejl! Henvisningskilde ikke fundet.. Table 13 shows the overall demand of heating and
electricity and how this demand is covered by the RES -PV, solar thermal systems, heat pumps and bio-
fuelled heating.
Table 13. Summary of demand and supply for the Class1 CONCERTO Community
In Table 13 the estimated electricity production is based on the installed 963 kWp PV as installed by the
Municipality of Egedal. The column Conv. Energy shows the amount of conventional energy has to be used
respectively for heating and electricity.
In Table 14 the resulting primary energy consumption is shown and compared to the situation where the
new buildings were constructed in a conventional way and the existing buildings not renovated. The
electricity consumption has been multiplied by a factor 2,5 as it is defined/required in the energy
requirements in the Danish building regulations to reach the corresponding primary energy.
Table 14. Total primary energy savings obtained.
These figures are presented a bit differently in Table 15. It appears that the overall reduction obtained is
69% both for heating and electricity.
Table 15.Overall comparison of primary energy consumption and reduction.
MWh
Demand
Heating
3713
Electricity
824
total
4537
Mwh
Demand
Conv. Energy
PV Solar Heat Heat-pumps
Bio/wood
Heating
1925
0
70
452
234
1170
Electricity
1207
949
258
Supply
Primary energy savings, MWh:
Factor:
2,5
%
el
566
1416
824
2060
69
heating
2544
2544
3713
3713
69
3960
5773
69