Energy efficiency

ESD design guide - Video and transcript
Paul Edwards, Lend Lease Australia Pacific
Australian Government Department of the Environment and Heritage, June 2005

AVI video file

About the video file

This video should be viewed in the context of the ESD design guide for Australian Government buildings.

The ESD design guide gives a basic introduction to ecological sustainability issues and specifically how the built environment affects them. It begins by outlining the Australian position on Ecologically Sustainable Development (ESD) and some key policies relevant to buildings and ESD.

See also: more ESD design guide videos


The chilled beams has had an impact on our chillers.

Our chillers are extremely efficient.

We have efficient fans and parts.

One of the interesting outcomes of our design was the 'free' rock wall cooling system, which is passive.

We have a four storey sandstone rock face in our building, which is adjacent to our atrium.

It works on the same principles as the chilled beams, as a large thermal mass, so when the space is heated up by the people in it, that air is cooled by the rock wall, the cold air falls down the wall and streams across the atrium and cools our occupants.

It's very effective, in some cases, too effective.

Another passive element is our extensive natural lighting.

I wouldn't say we've got the ideal depth of floor plate.

We've got a 12-16 max floor plate, which gives you good natural light as well as good cross flow ventilation.

We've got a 20m long wide floor plate with an atrium on one side, with full height glazing on the other.

This maximises daylight, and we maximise daylight as well through the use of a retractable blind on the north, west and southern facades.

On level four, our meeting rooms, we have a 'smart' door design which means all the doors are open when meetings aren't on, which maximises daylight into our reception area.

In terms of artificial components on energy efficiency, we have T5 lighting...

We're achieving 6.7 watts per square metre, which is way below anything else I know of.

We've got PE cells and motion detectors, the usual gadgets to reduce energy consumption.

I think one of our biggest components is our user education programs that we've had in place.

[transcript ends]