Table A5

Parameter cost data.

  Level 1: Poorer performance Level 2: As built Level 3: Better performance  
Parameter 1: Insulation Floor slab: 200 mm insulation Floor slab: 300mm insulation Floor slab: 400 mm insulation  
Exterior walls: 250 mm insulation Exterior walls: 455 mm insulation Exterior walls: 600 mm insulation  
Roof: 450 mm insulation Roof: 600 mm insulation Roof: 750 mm insulation  

Cost of floor insulation €/m2 31.6 46.3 60.3  
Cost of exterior walls €/m2 215.3 261.4 303.7  
Cost of roof insulation €/m2 33.2 43.9 54.3  
Labour in (each construction?) € Floor slab: 10.4; Exterior walls: 119.5; Roof: 12.7 Floor slab: 14.5; Exterior walls: 151.2; Roof: 16.6 Floor slab: 17.9; Exterior walls: 179.5; Roof: 20.2  

Parameter 2: Air tightness n50: 1.5 n50: 0.84 n50: 0.4  

Cost in € 6.00 10.40 12.80  
Labour in € 4.10 8.50 10.90  
Parameter 3: Windows/doors 1.10 W/m2K 0.90 W/m2K 0.70 W/m2K  
G-value of window 0.37 0.37 0.37  
Cost in € 72 397 75 897 93 397  
Labour in € 38 512 38 512 38 512  
Parameter 4: Ventilation SFP: 1.75 SFP: 1.5 SFP: 1.25  
η: 80%* η: 85%* η: 90%*  

Cost in € 27 043 31 815 36 587  
Labour in € 14 175 14 175 14 175  
Parameter 5: Heating District heating Ground source heat pump Ground source heat pump Extract air heat pump
kW: ∞ kW: 4 kW: 5 kW: 1.8
SCOP: 1.0 SCOP: 3.5 SCOP: 5.0 SCOP: 2.5

Total cost in production 121 817 135 352 155 655 27 070
Parameter 6: PVs No PVs 66 m2 120 m2  
10 kWp 20 kWp  

Cost of PV modules + converters €   98 000 190 000  
Labour in €   37 450 70 000  
Parameter 7: STCs No STCs 10 m2 STC, standard flate plate 20 m2, vacuum tubes  
used for DHW used for DHW and heating  

Total material cost   16 870 42 840  
Labour in €   7 630 11 760  
Parameter 8: Cooling Compressor cooling Free cooling/bore holes Free cooling/bore holes  
kW: 3 kW: 1 kW: 2  
SCOP: 3 SCOP: 20 SCOP: 20  

Total cost 10 500 46 995 70 000  

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