Sustainability The Stats SA building achieved a 4 Star - Green Star SA Office v1 Design rating in the 1st assessment round . Sustainable building features include :
Energy Efficiency The project reduces its peak demand on energy supply infrastructures by 32.9 % via the installation of an ice storage system . Stats SA has shown a 60 % improvement in predicted Carbon Emissions over a SANS 204 Notional Building , minimising the greenhouse gas emissions associated with operational energy consumption . The building has also incorporated energy sub-metres to accurately record the consumption of power and lighting used within the building .
Other energy saving strategies such as efficient , high frequency ballast have been incorporated in the building and a BMS system has been provided to monitor consumption of the building . Photovoltaic ( PV ) panels will be installed on a part of the roof to first drawing energy from the panels before using the mains power connection to meet the demand .
of the occupants . Windows are minimised on the east and west façades to minimise the heat load due to the low sun angle on the east and west , which is especially important to avoid in office buildings .
Materials The project has reduced the impact on resources by minimising the use of PVC by 30 % and the minimisation of absolute quantity of Portland cement by 30 % for in-situ concrete , 20 % for precast concrete and 15 % for stressed concrete .
Land Use and Ecology The project has minimised the impact for the need to clear undeveloped land that might cause urban sprawl by reusing a previously developed site and enhancing the ecology value of that site with the large areas of endemic landscaping .
Water Efficiency The irrigation design has reduced the demand for potable water use by 90 %. This is mainly achieved by having a large endemic veld landscaping around the building . A further reduction on potable water consumption has been achieved by the use of water efficient sanitary fittings . Water metres have been provided to monitor and manage water consumption of the office building in conjunction with the BMS System .
Indoor Environmental Quality The building ’ s orientation is such that the wings are orientated north / south , meaning that it is well orientated to respond to the climate , enhancing the comfort and indoor environment
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