Looking over Barangaroo North from KPMG towerThe 16-level KPMG office tower, located at the northern end of the King Street Wharf development, was one of the first buildings in Sydney to achieve a 4.5-star National Australian Built Environment Rating System (NABERS) energy rating. This was upgraded in the past two years to a 5-star rating because of an ongoing energy-reduction program. Each façade of the tower was oriented to take into account the movement of the sun throughout the year and the shading effect of adjacent buildings. The design of the façades focused on three issues: installation of shading devices on the northern, eastern and western façades to control the level of sunlight penetrating the glass and reduce the heat load at peak times; increasing access to natural light; and creating a dramatic effect, particularly with the visible splay to the northern façade. The building’s energy usage has been reduced by a combination of design features including window glazing and shading, active energycontrol systems, including daylight sensors that automatically dim artificial light, and infrared motion sensors to control lighting after hours.
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