Abu Dhabi, United Arab Emirates
Siemens Headquarters
ADFEC (Masdar) built Siemens Headquarters in Abu Dhabi in 2013. This office comprises 5 floors and has in total a built-up area of 22800 m². The main measures to save energy are a solar thermal collector on the roof for water heating, LED lighting, a mechanical ventilation system with heat recovery, and district cooling and heating. A highly insulated, airtight inner facade reduces thermal conductivity, lightweight aluminium external shading system minimises solar gain and maximises daylight and views from the building. The building performs 46% better than the baseline ASHRAE energy model.
Project info
- Construction phase
- New construction
- Building type
- Non-residential building
- Detailed building type
- Office
- Net floor area
- 22800 m2
- Stories
- 5 stories
- Original construction year of the building
- 2013
- Project contact
- N/A
- Contact email address
- siemens.ae@siemens.com
Project team
- Developer(s)/owner(s)
- ADFEC (Masdar)
- Architect(s)
- David Ardill, Sheppard Robson, London | UK
- Construction contractor(s)
- AECOM
Building Rating and Certifications systems
- Rating and certifications systems
- LEED
- Pearl Rating System for Estidama
Building Envelope
External walls
- U-Value
- 0.28 W/(m²*K)
Roof
- U-Value
- 0.16 W/(m²*K)
Openings and windows
- Overall u-value window
- 1.95 W/(m²*K)
Basement floor
- Description of construction
- The floor plates are punctured vertically by nine atria and six perimeter service cores. They are completely column-free, allowing for maximum flexibility, which is a core tenet of sustainability.
Technical Building Systems
Ventilation system
- Type of ventilation
- Mechanical ventilation system with heat recovery
- Description
- Electronically commutated DC fan coil unit is used for zonal cooling with outdoor air supplied by variable volume dedicated outdoor handling units. Double wheel technology used for heat recovery, it recovers up to 80% of the exhaust air energy.
Space cooling system
- Primary space cooling system
- Description
- The building is served by Masdar's district cooling system which provides chilled water at 7°C.
Space heating system
- Primary Space heating system
- District heating
Water heater system
- Primary water heater system
- Solar Thermal collector on the roof
- Description
- Solar thermal collector on the roof generate about 75% of the building's hot water heating requirements over the course of the year. The remaining of the annual hot water demand is provided by centralised electric heater located on the roof.
Lighting system
- Primary lighting system
- LED (Light emitting diode lamps)
- Efficiency
- 100
- Description
- The architecture allow plenty of natural light into the offices.The balance between natural and artificial light is regulated through a series of daylight and motion sensors.
Shading devices
- Type of shading system installed
- Static (fix) shading systems as part of the building architecture (e.g. Maschrabiyya, porch roofs, pergolas)
- Description
- The distinctive façade is characterised by a series of aluminium shades over the windows. These shades are individually designed to provide 100% shading for 95% of the glazed surfaces.
Final Energy Demand
- Total specific final energy demand
- 109.5 kWh/(m²*a)
