Brussels

Owner: Owner´s Association
Architect: Julia Metzendorff/ Gerold Köhler
Energy concept: gas condensing heater with solar thermal warmers
Location: Eggenstein-Leo
Key technologies:

  • thermal insulation (16 cm polystyrene)
  • best quality of heat-bridges and airtight envelope in cooperation with an energy consultant
  • decentralized ventilation system with heat recovery (2 system/ apartment
  • gas condensing heater with solar thermal warmers

LIFE CYCLE COSTS

 

 

 

 

 

WLCC (40)

MAINTENANCE

MAINT./INVEST.

LCC (40)

ENERGY (40)

RES/LCC

 

 

2.278.617 €

470.877 €

36%

1.971.944 €

187.477 €

3%

​​ 

 

INVESTMENT COSTS

Investment Costs

Design Costs

Construction Costs

1.313.590 €

246.820 €

1.066.770 €

 

nZeb technologies

Construction cost [€]

1.066.770 €

RES

5%

HVAC

9%

DHW

2%

VMC

0%

Heating

6%

Windows

9%

Final Energy Consumption [kWh]

Energy demand heating [kWh]

25.798

Energy demand cooling [kWh]

1.576

Energy demand DHW [kWh]

16.434

Household elt. + aux. [kWh]

26.044

Annual RES generation [kWh]

28.755

Annual CO2​​ Emissions [kgCO2]

11.775

 

BREAKDOWN OF THE UNITARY LCC

 

 

 

 

 

 

 

 

 

LCC​​ (40)

1534 €/m2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Investment

1022 €/m2

 

 

 

 

Design

192 €/m2

 

 

 

Preliminary

​​ 10 €/m2

 

Definitive

 ​​ ​​​​ 0 €/m2

 

Executive

182 €/m2

 

 

Materials

581 €/m2

 

Building Elements

340€/m2

Building Services

197€/m2

Construction

830 €/m2

 

 

RES

​​ 44 €/m2

Other

103 €/m2

 

 

 

 

Labor

249 €/m2

Building site management

0 €/m2

 

 

 

 

Operation

512 €/m2

 

 

 

 

 

Energy

146 €/m2

 

 

Consumed

313 €/m2

 

Heating

23 €/m2

Cooling

11 €/m2

DHW

57​​ €/m2

Household el.+ aux. ​​ 146 €/m2

Produced

167 €/m2

 

 

Maintenance

366 €/m2

 

Envelope

152 €/m2

 

HVAC

201 €/m2

 

RES

 ​​​​ 13 €/m2

 

 

 

 

Other ​​ 0 €/m2

 

 

 

Energy

Net heated floor area: 1006 m²
Primary energy need: 37 kWh/m2/y
Specific heating energy consumption:35,84 MWh/(m2a)
Specific cooling energy consumption: 0 kWh/(m2a)
Specific hot water energy consumption: 14,34 MWh/(m²·a)
Specific electricity consumption (excl. hot water and heating) 4.167 kWh/( m²·a)

Renewables:

PV installed power: 0 kWp-
Solar thermal installed power: 24 m2
Biomass installed power: 0 kW
Other RES power: 0
Annual RES generation:- kWh/y (% coverage Primary energy need)