IDP Library - Grand Bazar

Reference person: Maria Victoria Cambronero (ACCIONA)
Simulation report:

Reference building

Name: Grand Bazar
Location: Antwerp (BE)

General data

Urban context: urban
Climate: H&CD
Building: purpose-built
Year of construction: 1885
Year of retrofit: 1990
GLA before retrofit [m²]: 20403
GLA after retrofit [m²]:
Shopping centre size: Medium
Shopping centre sub-typology: neighbourhood/community
Food store format: hypermarket
Food store vending area [m²]: 362
Tenants vending area [m²]: 13145
Common areas and galleries [m²]: 3463
Nr of opening hours per day [h/d]: 8.5
Nr of opening days per week [d/w]: 6
Nr of closing days per year (because of holidays) [d/y]: 9

Building features

Centre design: enclosed
Shape: 0.3
Orientation: E/W
Number of levels above ground: 3
Number of underground levels: 1.0
Parking location:
Number of parking levels: no info
Biologically active area [%]: 0%


Wall structure: pre-fabricated panels
Wall insulation location: interspace
Wall insulation material: mineral
Wall U-value [W/m²K]: 1.559
WWR - north [%]: 0
WWR - east [%]: 0
WWR - south [%]: 40
WWR - west [%]: 0
Windows U-value [W/m²K]: 2.70
Window glazing g-value [-]: 1
Basement/Floor structure: concrete slab
Basement/Floor insulation location: in
Basement/Floor insulation material: mineral
Basement/Floor thermal transmittance [W/m²K]: 1.104
Roof structure: plane - pre-fabricated
Roof insulation location: out
Roof insulation material: mineral
Roof U-value [W/m²K]: 0.958
Vehicle accessible roof covering [%]: 0
Green roof covering [%]: 0
ST roof covering [%]: 0
PV roof covering [%]: 0
SRR [%]: 0
Skylight U-value [W/m²K]: 1.300
Skylight glazing g-value [-]: 0.30

Technical room

BMS lighting [Y/N]:
BMS natural ventilation [Y/N]:
BMS refrigeration [Y/N]:
BMS solar thermal system [Y/N]:
BMS electric storage [Y/N]:
Ventilation specific power [Wh/m³]:
Heat recovery thermal efficiency [%]: 0
SPF heating [-]:
SPF cooling [-]:

Common areas

Installed lighting power density [W/m²]: 23
Installed electric equipment power density [W/m²]: 10


Installed lighting power density [W/m²]: 36
Installed electric equipment power density [W/m²]: 10

Food store

Installed lighting power density [W/m²]: 30
Installed electric equipment power density [W/m²]: 20

Primary energy consumption

Lighting [kWh/m²-y]: 353
Refrigeration [kWh/m²-y]: 5
Plug loads [kWh/m²-y]: 95
HVAC [kWh/m²-y]: 133
Tot. primary energy [kWh/m²-y]: 586

Carbon emissions

Carbon emissions [tonCO2eq]: 2249


Envelope ineff.1: Missing daylighting panels
Envelope ineff. 2: No insulated external doors
Envelope ineff. 3: Inefficient insulation
Lighting ineff.1: Inefficient lamp technology and inefficient luminaires
Lighting ineff. 2: No lighting design strategy for entrance and atrium spaces
Lighting ineff. 3:
Refrigeration ineff. 1: Open freezers and refrigerators
Refrigeration ineff. 2:
Refrigeration ineff. 3:
HVAC_general general ineff.: No night temperature setbacks
HVAC_general general ineff.: Boilers without flue gas economizers
HVAC_heating heating ineff.: Missing air preheaters
HVAC_heating heating ineff.:
HVAC_cooling cooling ineff.: Missing TES
HVAC_cooling cooling ineff.:
HVAC_ventilation ventilation ineff.: Lack of recovery systems and "recycling" of energy
HVAC_ventilation ventilation ineff.: Lack of cogeneration or trigeneration

Retrofit solution set I

Solution set I ID: 13
Primary energy consumption [kWh/m²-y]: 354
Primary energy savings [%]: 40%
Carbon emissions tonCO2eq: 1446
Carbon emission savings [%]: 50%
Investment cost [M€]: 0.99
Operational energy cost [k€/year]: 295
Pay-back time [years]: 5.1
Net Present Value [M€]: 4.5
Maintenance cost [k€/year]: 63

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