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Green building at ANU – A ‘warts and all’ assessment Warren Overton Manager, Energy and Sustainability Office Facilities and Services. Content of Presentation. Construction at the ANU ESD Policy Development ESD Policy Implementation Building Fabric and Interior Comfort (HVAC) Lighting - PowerPoint PPT Presentation
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Green building at ANU – A ‘warts and all’ assessment
Warren OvertonManager, Energy and Sustainability Office
Facilities and Services
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
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’
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)
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
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
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
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
What is comfort?
Air temperature Radiant surfaces Air movement Humidity Glare Air quality Views Colour Noise User control
Comfort is different for everybody
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
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Rm 115OutsideReception
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
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’
Lighting
Maximising daylighting Photoelectric control Motion sensors T5 and electronic ballasts Single tube fittings Recycling fluorescent
tubes Contribution to passively
cooled buildings
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
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
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
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’
