• Glare and heat build-up due to direct sunlight were to be restricted without impacting on the visibility ;
• The internal finishes , external lighting and landscaping were designed to comply with the relevant requirements ;
• Safe , easy-access cyclist facilities ;
• A rain water harvesting system contributes to the efficient water performance of the building .
Energy According to the energy performance simulation carried out during the design phase , the expected energy consumption of the building is 806 715 kWh / year . This represents a 34 % reduction in energy consumption in comparison to a notional SANS204 compliant building .
The following initiatives contribute to the energy efficiency of the building :
• Efficient lighting throughout the interior , basements and the exterior of the building ;
• Occupancy sensors in all occupied areas ;
• The area-weighted average lighting power density is 1.62W / m ² per 100Lux for 99 % of the Usable Area ;
• A heat recovery variable refrigerant flow ( VRF ) system , most suitable for this size of building and its multi-tenancies arrangement ;
• Photovoltaic ( PV ) installation on the roof adds energy from renewable sources to the energy mix of building ;
• High performance glazing and air tight façade with thermal breaks ;
• Metering of major energy uses and separate metering of power , lighting and air-conditioning use for each tenancy .
Indoor Environment Quality Indoor environment quality is one of the key aspects of green buildings . Research shows that the quality of the indoor environment is directly proportional to the productivity and wellbeing of the buildings occupants . Illovo Edge Phase 3 features the following :
• Fresh air is provided at a rate higher than 12.5l / s / p , exceeding minimum regulatory requirements of SANS 10400-O ;
• More than 80 % of the usable areas have a direct line of sight to the outdoor environment , i . e . the building provides extensive external views outwards and into the courtyard ;
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