1. Green building at ANU – A ‘warts and all’ assessment Warren Overton Manager, Energy and Sustainability Office Facilities and Services

2. Content of Presentation  Construction at the ANU  ESD Policy Development  ESD Policy Implementation  Building Fabric and Interior Comfort (HVAC)  Lighting  Water Saving  Materials and Waste  Biodiversity  Future Directions

3. Construction at the ANU  Current period of increased construction activity  External design teams  External project managers  Internal stakeholder comment on design  Fixed budgets  ‘Value Management’

4. Recent ‘Green’ Buildings  Ian Ross Building – Natural ventilation (1999)  NCEPH/CMHR Extensions – Natural ventilation (2003)  Medical School – Hybrid (2003)  Coombs Extension – Natural Ventilation (2004)  JCSMR – ‘Adaptive’ Airconditioning (Construction)  AITC – Hybrid (Design)  Copland Extension – Hybrid (Design)

5. ESD Policy development  Review of other standards – LEED, BREEAM, etc.  Simple  Defensible – 10 yr payback  Measurable  Proven  Stakeholder input  High level endorsement  Potential move to a national rating system

6. ESD Policy  Short & simple – 4 pages  Specific requirements rather than a rating  Uses adapted PCA energy guidelines  Design teams are required to submit responses against each criteria – submissions vary greatly in detail and quality

7. ESD Policy implementation  Get involved early in the project  Become part of the design team  Agree on methods of assessment (payback, other lifecycle issues)  Follow up on project after completion - POE

8. Building Fabric  Designed to provide a comfortable and productive workplace  Majority of energy use in ANU buildings is space conditioning  Space conditioning requirements are dictated by the building fabric  Policy to discourage air conditioning wherever possible whilst still maintaining comfort

9. What is comfort?  Air temperature  Radiant surfaces  Air movement  Humidity  Glare  Air quality  Views  Colour  Noise  User control Comfort is different for everybody

10. Designing for comfort  What metrics should we use?  ASHRAE and OH&S standards  Psychometric charts  Predicted mean vote (PMV)  Explaining to the clients  Measuring comfort  Productivity benefits

11. Natural Ventilation Systems  Perfect for the ACT climate  Mass, mass, mass  Demonstrated to work – most of the time  Require user interaction and or BMS control  A different kind of comfort  No immediate, direct control  Have yet to get one 100%  Hybrid options

12. User Reactions  Variable  You only ever hear from those who are unhappy  ‘First class citizens get air-conditioning’  ‘It is not my job to control the temperature’  ‘Why do we have to be the guinea pigs?’  ‘This is the best building I have ever worked in’

13. Lighting  Maximising daylighting  Photoelectric control  Motion sensors  T5 and electronic ballasts  Single tube fittings  Recycling fluorescent tubes  Contribution to passively cooled buildings

14. Water Saving  Drought & pricing has caught people’s attention  Waterless Urinals (UTS)  6 l/min showerheads  Rainwater capture  Process cooling  Grey and Blackwater capture- Living Machines  Recycled effluent use on ovals

15. Materials and Waste  Demolition waste – 80% recycling target  Construction waste – much harder (training & policing)  Low VOC materials  Recycled content materials  How to specify  Finding suppliers  Lifecycle assessment  Waste facilities in buildings

16. Biodiversity  Biodiversity Survey to define ‘BMA’s  Explaining what biodiversity is and what value it has  Preservation of existing habitat  Using new landscape to create habitat  Encouraging aquatic habitats

17. Future Directions  Revision of current guidelines – adoption of another standard such as Green Star  Assessment of projects undertaken to learn from our experiences – write case studies, POE  Improvement of internal processes to ensure involvement – design teams  Constant ongoing learning to improve our designs  Shift the culture of users to embrace ‘green buildings’