IDP Library - Brent Cross
| Reference person: | Kristian Skeie (SINTEF) |
|---|---|
| Simulation report: |
Reference building
| Name: | Brent Cross |
|---|---|
| Location: | London (UK) |
General data
| Urban context: | suburban |
|---|---|
| Climate: | H&CD |
| Building: | purpose-built |
| Year of construction: | 1976 |
| Year of retrofit: | 2000 |
| GLA before retrofit [m²]: | 84200 |
| GLA after retrofit [m²]: | 84200 |
| Shopping centre size: | Very large |
| Shopping centre sub-typology: | super-regional |
| Food store format: | none |
| Food store vending area [m²]: | 3680 |
| Tenants vending area [m²]: | 80400 |
| Common areas and galleries [m²]: | 13500 |
| Nr of opening hours per day [h/d]: | 10.0 |
| Nr of opening days per week [d/w]: | 7 |
| Nr of closing days per year (because of holidays) [d/y]: | 3 |
Building features
| Centre design: | enclosed |
|---|---|
| Shape: | 0.6 |
| Orientation: | E/W |
| Number of levels above ground: | 2 |
| Number of underground levels: | 0.0 |
| Parking location: | external multistorey carpark |
| Number of parking levels: | - |
| Biologically active area [%]: | 0.00% |
Perimeter
| Wall structure: | masonry |
|---|---|
| Wall insulation location: | out |
| Wall insulation material: | mineral |
| Wall U-value [W/m²K]: | 0.450 |
| WWR - north [%]: | 1 |
| WWR - east [%]: | 1 |
| WWR - south [%]: | 4 |
| WWR - west [%]: | 1 |
| Windows U-value [W/m²K]: | 2.20 |
| Window glazing g-value [-]: | 1 |
| Basement/Floor structure: | concrete slab |
| Basement/Floor insulation location: | none |
| Basement/Floor insulation material: | |
| Basement/Floor thermal transmittance [W/m²K]: | 1.336 |
| Roof structure: | plane - pre-fabricated |
| Roof insulation location: | out |
| Roof insulation material: | mineral |
| Roof U-value [W/m²K]: | 0.600 |
| Vehicle accessible roof covering [%]: | 0% |
| Green roof covering [%]: | 0% |
| ST roof covering [%]: | 0% |
| PV roof covering [%]: | 0% |
| SRR [%]: | |
| Skylight U-value [W/m²K]: | 2.200 |
| Skylight glazing g-value [-]: | 0.60 |
Technical room
| Location: | vending area level |
|---|---|
| BMS lighting [Y/N]: | N |
| BMS natural ventilation [Y/N]: | N |
| BMS HVAC [Y/N]: | Y |
| BMS refrigeration [Y/N]: | Y |
| BMS solar thermal system [Y/N]: | N |
| BMS electric storage [Y/N]: | N |
| Ventilation specific power [Wh/m³]: | 0,833 - 0,97 |
| Heat recovery thermal efficiency [%]: | 40 |
| SPF heating [-]: | 0.84 |
| SPF cooling [-]: | 2.70 |
Common areas
| Installed lighting power density [W/m²]: | 15-20 |
|---|---|
| Installed electric equipment power density [W/m²]: | 10 |
Tenants
| Installed lighting power density [W/m²]: | 38 |
|---|---|
| Installed electric equipment power density [W/m²]: | 4 |
Food store
| Installed lighting power density [W/m²]: | 38 |
|---|---|
| Installed electric equipment power density [W/m²]: | 40 |
Primary energy consumption
| Lighting [kWh/m²-y]: | 333 |
|---|---|
| Refrigeration [kWh/m²-y]: | |
| Plug loads [kWh/m²-y]: | 113 |
| HVAC [kWh/m²-y]: | 223 |
| Tot. primary energy [kWh/m²-y]: | 669 |
Carbon emissions
| Carbon emissions [tonCO2eq]: | 12350 |
|---|
Inefficiencies
| Envelope ineff.1: | outdated windows |
|---|---|
| Envelope ineff. 2: | Air leaks and cracks |
| Envelope ineff. 3: | |
| Lighting ineff.1: | Inefficient lamp technology and inefficient luminaires |
| Lighting ineff. 2: | |
| Lighting ineff. 3: | |
| Refrigeration ineff. 1: | |
| Refrigeration ineff. 2: | |
| Refrigeration ineff. 3: | |
| HVAC_general general ineff.: | |
| HVAC_general general ineff.: | |
| HVAC_heating heating ineff.: | |
| HVAC_heating heating ineff.: | |
| HVAC_cooling cooling ineff.: | |
| HVAC_cooling cooling ineff.: | |
| HVAC_ventilation ventilation ineff.: | |
| HVAC_ventilation ventilation ineff.: |
Retrofit solution set I
| Solution set I ID: | 6 |
|---|---|
| Primary energy consumption [kWh/m²-y]: | 301 |
| Primary energy savings [%]: | 55% |
| Carbon emissions tonCO2eq: | 8070 |
| Carbon emission savings [%]: | 65% |
| Investment cost [M€]: | 10.851 |
| Operational energy cost [k€/year]: | 410 |
| Pay-back time [years]: | 7 |
| Net Present Value [M€]: | 17 |
| Maintenance cost [k€/year]: | 110 |
