Some Key Sustainability Designs
• Double glazing to façades
• Aluminium shading panels throughout which were modelled for optimisation
• Anaerobic biodigester for biodegradable waste generated by the kitchen which diverts around 700 kgs per month from landfill
• Ample natural light , views and courtyard use with Wifi for staff to work from .
• Low VOC paints and sealants
• Heat recovery chillers with no geysers and electrical heating of hot water .
• HVAC chillers generate the hot water and act as heat pump
• Water dispensing systems for meeting rooms and staff . This reduced the use of plastic water bottles significantly . Part of the approved zoning by council was a requirement for all stormwater to be treated
through a sedimentation chamber before being discharged . The sustainability consultants used this pre-existing design requirement to build the water-use strategy with re-use of all stormwater within the building .
The building aimed to reduce energy consumption through the following strategies :
• Efficient and intelligent lighting systems .
• Enhancing daylight usage .
• The HVAC system has the ability to heat and cool the building , at the same time utilising efficient built-in heat pumps . Variable speed fans only operate at the speed required . When outside air temperatures are favourable , 100 % of fresh air is supplied to the building .
• Double glazed performance glass reduces the amount of heat gain and loss of the building .
• Energy modelling to optimise shading of the building to reduce heat gain . Sophisticated lighting control was installed - known as DALI ( Digital Addressable Lighting Interface ). This system is energy efficient and allows the user to have the ability to control each light individually . The DALI sensors can be controlled by a switch and / or by infrared readers that sense if there are people in the room and switch off if the area is not used .
The lights sense daylight in a specific area and can automatically dim to reduce energy usage ; this is known as daylight harvesting .
The lights are controlled by ballasts which have a high frequency control that produces no flicker and white noise . This prevents the occupant from suffering eyestrain and headaches experienced with older magnetic ballast type installations . The added benefit is a 50 % reduction in energy losses in the ballasts .
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