Solallén

Owner: Brf Solallén (Tenant owned)
Architect: Skanska Teknik
Energy concept: Net ZEB
Location: Växjö (Sweden)
Construction Date: 2015
Key technologies:

  • Well insulated and air tight
  • Balanced ventilation with heat recovery
  • Ground source heat pump
  • Photovoltaic panels

LIFE CYCLE COSTS

 

 

 

 

 

WLCC (40)

MAINTENANCE

MAINT./INVEST.

LCC (40)

ENERGY (40)

RES/LCC

 

 

5.548.872 €

916.519 €

30%

4.588.972 €

576.689 €

3%

​​ 

 

INVESTMENT COSTS

Investment Costs

Design Costs

Building site​​ 

management

Construction Costs

3.095.764 €

300.000 €

260.000 €

2.535.764 €

 

​​ 

Impact of nZEB technologies on the investment cost

Construction cost [€]

2.535.764 €

RES

5%

HVAC

18%

DHW

2%

VMC

5%

Heating

10%

Windows

6%

Final Energy Consumption

Energy demand heating [kWh]

32.688

Energy demand cooling [kWh]

785

Energy demand DHW [kWh]

11.138

Household elt. + aux. [kWh]

47.258

Annual RES generation [kWh]

32.688

Annual CO2​​ Emissions [kgCO2]

48.895

BREAKDOWN OF THE UNITARY LCC

 

 

 

 

 

 

 

 

 

LCC (40)

2185 €/m2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Investment

1474 €/m2

 

 

 

 

Design

143 ​​ €/m2

 

 

 

Preliminary

28 €/m2

 

Definitive

115 €/m2

 

Executive

- €/m2

 

 

Materials

1593 €/m2

 

Building Elements

348€/m2

Building Services

162€/m2

Construction

1208 €/m2

 

 

RES

 ​​ ​​​​ 43 €/m2

Other

43 €/m2

 

 

 

 

Labor

611 €/m2

Building site management

124 €/m2

 

 

 

 

Operation

711 €/m2

 

 

 

 

 

Energy

275 €/m2

 

 

Consumed

296 €/m2

 

Heating

105€/m2

Cooling

 ​​ ​​​​ 3 €/m2

DHW

 ​​​​ 36€/m2

Household el.+ aux.  ​​ ​​​​ 152€/m2

Produced

21 €/m2

 

 

Maintenance

436 €/m2

 

Envelope

156 €/m2

 

HVAC

225 €/m2

 

RES

 ​​​​ 43 €/m2

 

 

 

 

Other ​​ 13 €/m2

 

 

 

Energy

ross heated floor area: 11 500 m²
Primary energy need: 23,3 kWh/m2/y (for heating, cooling, ventilation, lighting and SHW only)
Final energy consumption: 9 kWh/m2/y
Specific heating energy consumption: 3,9 kWh/(m2a) primary energy
Specific cooling energy consumption: 0,0 kWh/(m2a)
Specific hot water energy consumption: 8,9 kWh/(m²·a) primary energy
Specific electricity consumption (excl. hot water and heating) 11,4 kWh/( m²·a) primary energy, lighting & ventilation only

Renewables:

PV installed power: 120 kWp
Solar thermal installed power:None
Biomass installed power: None
Other RES power: -
Annual RES generation: 115 MWh/y
100% coverage Primary energy needs