Heat, light and energy use in 60L

When we talk about 'fire', we mean those aspects of the building which supply or deal with heat and light.

60L achieves better commercial performance by maximising daylight throughout the building, which, in turn, reduces the capital cost of artificial lighting and the ongoing operating cost of power for the lights and for removing the heat produced by the lights.

Energy Design Principles

Design principles underpinning 60L's electrical energy use are based on the idea that the building should, to the greatest extent possible, generate zero greenhouse gas emissions.

In real terms, what we have achieved is a building which will use only about one-third as much energy as a traditional commercial development of the same size. Further, 60L uses only green power, so the actual greenhouse gas emissions produced by the building energy systems are very close to zero.

The following strategies were included in the design:

    • minimise the demand for energy through equipment design, technology selection, taking advantage of passive design strategies and an expectation of responsible environmental behaviour by the building occupants;

    • purchasing 100% Green Power from the electricity retailer to provide zero greenhouse gas emissions;

    • generate power through a rooftop solar array.

Building orientation

North and west facing facades include large glass areas that take advantage of winter sun. A large inner atrium with light shelves also brings sunlight into the core of the building.

Six light wells in the building perimeter also bring light into the inner areas of the tenancies. 60L uses 100% green power - electricity bought from a provider who commits to source the same amount of power from a renewable source.

A rooftop solar array generates power for use in the building. In times of low demand, the solar array supplies energy back into the electricity grid. The fit-out specifications require tenants to use energy efficient appliances wherever possible throughout in the building fit-out.

A rooftop solar array contributes green power to 60L

 

Individual tenancies control comfort via split-system reverse-cycle air conditioners.

The building heating system is designed to make the best of passive design principles. Heat that has been absorbed during the day into the brick and concrete structure can be eliminated at night by using the computer-controlled louvre venting system.

60L's energy systems are a good example of the environmental and cost benefits that can accrue through a heirarchical approach to design.