colin reiter: green buildings in operation
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Green Buildings in Operation
ISCN 2014 Conference
Colin Reiter Director, Asset Services
The University of Melbourne
sustainablecampus.unimelb.edu.au/
Our philosophy
The University of Melbourne is committed to embedding sustainability in all aspects of its research, teaching and campus operations.
It seeks to enhance the
experience of students and staff through the provision of a
world class sustainable campus environment.
Green Building Certification models across the Globe
LEED - Leadership in Energy & Environmental Design USGBC – U.S. Green Building Council
Green Building Certification models across the Globe
BREEAM - Building Research Establishment Environmental Assessment Methodology • country-specific (European) and
international Schemes • best practice in sustainable
building design, construction and operation
• 1 to 5 Stars awarded
Green Building Certification models across the Globe
GBCA – Green Building Council of Australia Building rating tools • Design & As Built (presently being combined)
• Sector-specific versions – Education, Healthcare, Industrial, Office …
• Green Star – Performance • assesses the operational performance of buildings
Green Star Communities • Precinct-wide sustainability rating tool • University of Melbourne is:
• a Gold Sponsor of tool development • has a registered project in pilot phase
- main Parkville campus of 159 buildings over 66 hectares (163 acres)
Green Star Scoring
Design & Construction Costs for Green Buildings
http://www.worldgbc.org/activities/business-case/
Green Buildings – the University of Melbourne
Commitment to minimum design ratings through the Green Building Council of Australia
– 5 Star Green Star for all new building developments – 4 Star Green Star for all major building upgrades
Faculty of Business & Economics
The Peter Doherty Institute Melbourne Brain Centre
Faculty of Architecture, Building & Planning
• Chilled beam technology
• 46% less energy than comparable building
• blackwater recycling plant treats 30,000 litres per day
• Mixed-mode ventilation system
• co-gen plant reduces emissions by 55%
• 50,000-litre rainwater tank
• Presently undergoing rating, construction due to complete end 2014
• Extensive LED lighting
• Laminated timber beams
• 750,000-litre rainwater tank
• co-generation plant saves 2,475 tonnes CO2 per year
• 100,000-litre rainwater tank
• Greywater filtration system on roof
Faculty of Architecture, Building & Planning
Faculty of Architecture, Building & Planning
• $114,750,000 • 17,000m² • 5 Star Green Star • Aurecon: Building Services, Project Managers & Façade Consultants • Design Brief
! Commitment to innovation ! Best available techniques in sustainable design, and for use of materials, energy, air
and water. ! Act as a laboratory for control, adjust and monitor environmental systems ! High level of occupant comfort
• Built Pedagogy ! Communicate ongoing research
• Aurecon Building Services ! Mechanically assisted natural ventilation ! Air tight construction (pressure tested) ! Modular services for each space (outside air thru heat recovery and facades) ! Large central atrium with under floor air distribution ! Completed a detailed Co/Tri-generation Study (not enough carbon reduction) ! Thermal Pile Ground source heat pump system serving small area ! Ground source system can operate in multiple modes, provides maximum research
benefit
Building Performance Analysis
Two comparisons of electricity consumption in 5 star Green Star buildings and regular buildings of similar size and business activity
5 Star Melbourne Brain Centre cf. Bio 21
5 Star Business & Economics cf. Law
Building Internal GFA
2013 elec MWh Variance
Melb Brain Centre
229,896 sq ) (21,358 m2) 4779 -35%
Bio 21 248,119 sq ) (23,051 m2) 7321
Building Internal GFA
2013 elec MWh Variance
Bus & Eco 274,426 sq ) (25,495 m2) 2324 -29%
Law 267,257 sq ) (24,829 m2) 3257
Green Star Buildings Design vs. Performance
Lessons learnt so far – Good Points – Energy consumption & efficiency
better than older buildings => lower emissions and energy cost
– Building fabric, façade, glazing and insulation superior compared to older buildings
– Water consumption efficiency better than older buildings => lower water cost
– Building technology such as Building Management Systems and lighting control systems provide valuable facilities management tools
Green Star Buildings Design vs. Performance
Lessons learnt so far – Challenges – Innovative elements like Blackwater
treatment plants, cogeneration, chilled beams and passive ventilation systems can be problematic
– Higher maintenance costs to manage the technology systems
– Design energy modelling targets difficult to achieve
– Analysis of data from sub-metering of electricity and water usage is resource intensive
Faculty of Business & Economics
Opportunities for Collaboration the Group of Eight
• Go8 – eight leading research-intensive universities in Australia • Opportunities for collaboration
– Performance of 11 certified buildings across the Group – Design rating category for Educational buildings – Many Laboratory-focussed, energy-intensive buildings
• 11 certified buildings, 2008 – 2014 • Total 180,000 square metres Gross Floor Area
(1,937,500 sq ft) • 3 other buildings to rating standard (not certified) • 5 star & 6 star ratings
© Copyright The University of Melbourne 2008