Environmental Challenges and Opportunities in North America’s Built Environment Martin Adelaar...
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![Page 1: Environmental Challenges and Opportunities in North America’s Built Environment Martin Adelaar Marbek Resource Consultants Canada North America 2030-Commission.](https://reader037.fdocuments.net/reader037/viewer/2022110101/56649e695503460f94b66da0/html5/thumbnails/1.jpg)
Environmental Challenges and Opportunities in North America’s
Built Environment Martin Adelaar
Marbek Resource ConsultantsCanada
North America 2030-Commission for Environmental CooperationJune 25, 2008
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About this Presentation
Environmental Impact of the Built Environment
Deep Green Scenario for Energy Performance and GHG Reduction
Public Policy Implications: Challenges and Solutions
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Acknowledgements
Canada Mortgage and Housing Corporation Odon de Buen Stephen Selkowitz and LBL Athena Sustainable Materials Institute Jane Thompson-architect Marbek staff
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Elements of the Built Environment
Dwellings Neighbourhood Infrastructure
Neighbourhoods
Residential TransportationOuter suburbsInner suburbsInner city
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5
End-of-Life
Maintenance & Replacement
Operating (Direct & Indirect)
On-site Construction
Extraction &Manufacturing
Resource Use +
Emissions & Pollutants
=Environmental
Impacts
Life-cycle of the Built Environment
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Snapshot of the North American Buildings Sector
North America buildings sector: 36% of total CO2 emissions and 9% of global emissions.
Bldgs account for 25% to 40% of energy use and roughly similar range for GHG emissions.
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Impact of the Built Environment
It’s about:• Where we locate (live, work)
• What we live and work in
• How we live and work.
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Operating stage dominates most categories of environmental impacts.
0
500
1,000
1,500
2,000
2,500
3,000
Extract& Mfring
On-SiteConstr.
IndirectOper.
DirectOper.
Maint. &Repl.
GH
G E
mis
sio
ns
[MtC
O2e
]
Dwellings Road, Water & Wastewater Infra. Res. Transp.
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Outer suburb dwelling = 1.5-2.0x impacts
0%
20%
40%
60%
80%
100%
Total Primary Fuel Use
Total Water Use
Total Solid Resource
Use
Outer Suburbs Inner Suburbs Inner City
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Going Deep Green
The AIA-RAIC 2030 Challenge as the target Established a schedule leading to
• a carbon neutral end-state for newly constructed buildings in 2030
• substantial carbon reductions in existing buildings Target would be met by a combination of
energy performance improvements in buildings and the supply of zero carbon energy to address remaining demand.
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Total GHG Emissions by Milestone Year (North America)
0
500
1000
1500
2000
2500
3000
3500
2005 2010 2015 2020 2025 2030
MT
CO
2
BAU Deep Green AIA
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Total GHG Reductions by Milestone Year and Scenario
0
200
400
600
800
1000
1200
1400
1600
1800
AIA DeepGreen
AIA DeepGreen
AIA DeepGreen
AIA DeepGreen
AIA DeepGreen
2010 2015 2020 2025 2030
MT
CO
2 USA
Mexico
Canada
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Residential Example
• Location: Toronto, ON• Upgraded insulation, windows and• Energy Star® appliances• More efficient hot water and wastewater
heat recovery• Renewable solar PV power• Focus on reuse and conservation of
existing resources• Reduction of almost 6 tonnes of GHG
emissions a year, with estimated annual energy savings of $989.87
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Residential Example
• Location: Red Deer, AB• Tailored to the local climate• Efficient and water-resistant building
envelope• Improved indoor air quality• Advanced HRV system• Responsible use and recycling of
resources• Highly adaptable design accommodates
full life cycle of the home
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Commercial Building Example
Water-conserving fixtures and controls
Re-use of existing structures and materials, use of local and recycled materials
Operable windows used throughout to promote natural ventilation
Low toxicity interior materials
Passive solar design
Adaptive and flexible design Modular HVAC and Lighting
systems Occupancy and daylight
sensors control ventilation and lighting.
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Low-rise Apartment Example:Net-Zero Energy Triplex
Name: Abondance MontréalType: TriplexLocation: Verdun, QC, Canada
Features:
• Produces more energy than it consumes annually
• GeoExchange heat pump, solar thermal vacuum tubes, greywater heat recovery and 84 solar PV panels
• Climate- and site-specific layout and design• Improved indoor air quality and moisture
control• Cutting-edge features and amenities
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Energy Management
Source: Natural Resources Canada – Dollars to $ense Workshop
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Looking Ahead-Can We Get There?
“Without goal setting and clear accountability, progress is left to serendipity”
So, establish strategic objectives to be assessed on five year cycles.
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Strategic Policy Objectives
Create the conditions from which significant performance improvement and behaviour change will occur and be sustained.
Meet the AIA-REIC Target
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Tactical Attribute Objectives
No Lost Opportunities Aggressive Efficiency and Renewables Resilient-flexible- modular systems Closed loop Low impact material choice & sourcing,
design & construction
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Navigate Across Zones of Potential
Technical Potential
Economic Potential
Achievable Potential
Technical Potential
Economic Potential
Achievable Potential
Technical Potential
Economic Potential
Achievable Potential
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Ultimately A One-System Approach
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Challenges and Solutions
Valuation: • Green is undervalued; brown is over-valued
• Support the Valuation Accord
• Assess and document energy and non-energy benefits
• Fiscal incentives & disincentives.
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Challenges and Solutions
Governance and Accountability• Regulations: “performance floors”; boundaries
for Livable/Sustainable Communities; renewable portfolio stnds
• Address local government inertia and governance barriers
• Lead by Example (e.g., green procurement; full-cost accounting).
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Challenges and Solutions
Transactional Infrastructure• Valuation tools/techniques
• Standardize measurement and verification
• Standard language for RFPs, green leases etc
• Standard energy/environment assessment (audit) methods
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Challenges and Solutions
Skilled labour• Develop/advance/standardize curricula
• Incent mentoring and hiring
• Training standards/certification for building operators