IDP Library - Donauzentrum

Reference person: Marta Avantaggiato (EURAC)
Simulation report:

Reference building

Name: Donauzentrum
Location: Wien (AT)

General data

Urban context: urban
Climate: H&CD
Building: purpose-built
Year of construction: 1975-2010
Year of retrofit:
GLA before retrofit [m²]: 133000
GLA after retrofit [m²]:
Shopping centre size: Very large
Shopping centre sub-typology: super-regional
Food store format: hypermarket
Food store vending area [m²]: 8131
Tenants vending area [m²]: 73233
Common areas and galleries [m²]: 11257
Nr of opening hours per day [h/d]: 11.0
Nr of opening days per week [d/w]: 6
Nr of closing days per year (because of holidays) [d/y]: 10

Building features

Centre design: enclosed
Shape: 0.6
Orientation: NE/SW
Number of levels above ground: 2
Number of underground levels: 0.0
Parking location: external multistorey carpark
Number of parking levels: 2
Biologically active area [%]: 0%


Wall structure: masonry
Wall insulation location: none
Wall insulation material:
Wall U-value [W/m²K]: 0.512
WWR - north [%]: 12
WWR - east [%]: 10
WWR - south [%]: 13
WWR - west [%]: 34
Windows U-value [W/m²K]: 3.00
Window glazing g-value [-]: 1.24
Basement/Floor structure: concrete slab
Basement/Floor insulation location: in
Basement/Floor insulation material: oil derivatives
Basement/Floor thermal transmittance [W/m²K]: 13.18
Roof structure: plane - pre-fabricated
Roof insulation location: out
Roof insulation material: oil derivatives
Roof U-value [W/m²K]: 4.55
Vehicle accessible roof covering [%]:
Green roof covering [%]: 0
ST roof covering [%]: 0
PV roof covering [%]: 0
SRR [%]: 5
Skylight U-value [W/m²K]: 1.24
Skylight glazing g-value [-]: 9.44

Technical room

Location: underground
BMS lighting [Y/N]: Y
BMS natural ventilation [Y/N]: N
BMS refrigeration [Y/N]: N
BMS solar thermal system [Y/N]: N
BMS electric storage [Y/N]: N
Ventilation specific power [Wh/m³]: 1.27
Heat recovery thermal efficiency [%]: 60
SPF heating [-]: 0.90
SPF cooling [-]: 2.8

Common areas

Installed lighting power density [W/m²]: 35-22
Installed electric equipment power density [W/m²]: 10


Installed lighting power density [W/m²]: 35-25
Installed electric equipment power density [W/m²]: 10

Food store

Installed lighting power density [W/m²]: 27
Installed electric equipment power density [W/m²]: 10

Primary energy consumption

Lighting [kWh/m²-y]: 178
Refrigeration [kWh/m²-y]: 45
Plug loads [kWh/m²-y]: 63
HVAC [kWh/m²-y]: 163
Tot. primary energy [kWh/m²-y]: 449

Carbon emissions

Carbon emissions [tonCO2eq]: 11376


Envelope ineff.1:
Envelope ineff. 2:
Envelope ineff. 3:
Lighting ineff.1: No lighting design strategy for entrance and atrium spaces
Lighting ineff. 2: Inefficient lamp technology and inefficient luminaires
Lighting ineff. 3:
Refrigeration ineff. 1:
Refrigeration ineff. 2:
Refrigeration ineff. 3:
HVAC_general general ineff.: CSD and CAV systems
HVAC_general general ineff.:
HVAC_heating heating ineff.:
HVAC_heating heating ineff.:
HVAC_cooling cooling ineff.: Pumps, cooling towers and controls inefficiencies
HVAC_cooling cooling ineff.:
HVAC_ventilation ventilation ineff.:
HVAC_ventilation ventilation ineff.:

Retrofit solution set I

Solution set I ID: 8
Primary energy consumption [kWh/m²-y]: 349
Primary energy savings [%]: 21%
Carbon emissions tonCO2eq: 9020
Carbon emission savings [%]: 20%
Investment cost [M€]: 6.118
Operational energy cost [k€/year]: 378
Pay-back time [years]: 3.2-3.8
Net Present Value [M€]: 4.074
Maintenance cost [k€/year]: 148

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