Sustainability Alice Lane Phase 2 achieved a 4 Star Green Star SA – Office v1 Design rating in December 2013 . In order to achieve this rating , sustainabilty aspects include :
• The structure of the building is predominantly concrete .
• The main electrical supply consists of two sections . The critical section is backed up by a generator . The non-critical section powers items such as HVAC chillers , pumps and other non areas not requiring generator backup . All other items are backed up via the generator . There is one generator which provides the emergency backup required for the building .
• The fire protection system does not expel water during testing . Water is directed back into storage tanks . Energy consumption is reduced to 165kWh / m 2 / year and carbon emissions to 198kgCO2 / m 2 / year . A ground-water harvesting system is in place .
• The building is mechanically ventilated . Heating and cooling is provided by means of a four pipe central chilled water system using air cooled reversible hear pump chillers and four pipe in-ceiling fan coil units . Chillers placed on the roof make use of the compression cycle of refrigerants in order to transfer heat from the chilled water circuit to the atmosphere .
Conclusion The completion of the second building in the Alice Lane trilogy brings the vision of three iconic buildings surrounding a distinctive piazza closer to being realised .
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