Architect and Builder September 2020 | Page 54

THIS SPREAD: Building D The lighting power density for artificial light is limited to 1.5W/m 2 per 100 lux to ensure minimal energy consumption. This is achieved through the use of LED lighting for at least 95% of the offices. All spaces are individually switched, and occupancy sensors linked to the lighting system enable lighting of occupied areas only. Hot water is provided through the use of a 5,5kW heat pump to showers in the upper basement level and for use in kitchens and wash hand basins. Water saving initiatives include water efficient sanitary fittings, and an air-cooled heat rejection HVAC system rather than a system using potable heat rejection water. The system uses refrigerants with an ozone depletion potential (ODP) of zero; and does not include any component systems that might pose a risk of legionella infection. A 21m 2 recycling and waste storage area is conveniently located for precinct service collection at the Upper Parking Level, with easy access to dedicated sorting bins. This area is linked to the Westend Precinct larger waste and recycling centre which facilitates sorting of paper and cardboard; plastic, glass and cans; metals; and general waste. 54 Westend