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Thriving Neighbourhoods
Transformational Sustainability
David Jarratt@davidjarratt
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Green Building Evolution
Green building design has gained rapid acceptance globally.
It has evolved from being part of small boutique facilities to being a key component of global corporate HQ’s and highly cost effective commercial office developments.
Truly green development mixes high performance buildings (works above ground) with innovative infrastructure (works below ground).
Green Precincts and Cities are the next step.
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Alternate Ventilation Systems
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Performance Summary – DesignASHRAE 90.1 Modelling
ASHRAH 90.1 (2004) Design ASHRAH 90.1 (2004) Design ASHRAH 90.1 (2004) DesignDe Anza College MLC Hilton Foundation NOAA PRC
0.0
20.0
40.0
60.0
80.0
100.0
120.0
Fans Cooling Heating Pumps
En
erg
y kW
h/m
²
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2060
TodayThe Realm of Uncertainty
Changes in “the natural means of the site”
Changes in cost
Changes in technology
Changes in regulation
Changes in market
perception
Changes in scientific
consensus
Certainty of outcome
Reduced certainty of
outcome
Almost no certainty of
outcome
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What opportunities exist on the Precinct Scale
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Simple
Adjustable
Fun
Healthy
Well made
Stable & Dependable
No Batteries
Safe
Bright Colours
Affordable
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Understanding the Spatial Layers of a City
built environment – buildings, public spaces, amenities and services
urban infrastructure – transport, water, waste, energy and food
natural attributes – land, water and air
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Cycles
Energy
Water
NutrientLife
Future
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Carlton United Brewery – Fraser’s BroadwayCentral Park
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Carlton United Brewery (Fraser’s Broadway)Location: Sydney
Stage: Design / Construction Stage
Commissioned by: Frasers Property
Use: Commercial, Residential, Retail
Details: Commercial ~120,000 m2, 1689 Apartments~235,000 GFA of built6 hectares
ESD Considerations: 5 Star Precinct PILOT rating Water neutral Sewer mining Possible carbon neutral Precinct heating/cooling Cogeneration No upgrade to infrastructure
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Amended Concept Plan Targets
Key Sustainability Initiatives: Elton Consulting
“To aim for a zero net carbon and zero net potable water development”
“Frasers Broadway has expressed the intention to move beyond base line compliance and towards the stretch goal of zero net greenhouse emissions (CO2 –eq) development for operational energy use of the base building.”
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What is Carbon Neutrality?
Your carbon status is the net balance of carbon dioxide produced and carbon dioxide absorbed / avoided / offset.
Carbon neutral therefore means that any CO2 produced by on-site operation is accounted for either internal or external to the site.
There are 5 levels of carbon neutrality that could be targeted:Base Building Operational
Tenant Operational
Construction Energy
Embodied Energy
Option 1
Option 2
Option 3
Option 4
Option 5
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What is Carbon Neutrality?
Your carbon status is the net balance of carbon dioxide produced and carbon dioxide absorbed / avoided / offset.
Carbon neutral therefore means that any CO2 produced by on-site operation is accounted for either internal or external to the site.
There are 5 levels of carbon neutrality that could be targeted:Base Building Operational
Tenant Operational
Construction Energy
Embodied Energy
Option 1
Option 2
Option 3
Option 4
Option 5
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Hierarchy of Carbon Neutrality
Minimise Demand
Zero Emission Energy Sources (PV, Wind, Bioenergy)
Carbon EfficientEnergy Sources(trigen) + Carbon Offsets
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Quantification
0
10,000
20,000
30,000
40,000
50,000
60,000
-$20 -$15 -$10 -$5 $0 $5 $10 $15 $20
Tonn
es C
O2/
year
NPV
Millions
Environmental Performance Compared Against Net Present Value
RENEWABLES / OFFSETS
3MW
5MW
10.2MW24MW
Base Case (No Trigen)
Environmental Limitations of Trigeneration
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Frasers Broadway – Carbon
0
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20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
Industry Standard Total Efficient design Trigen Thermal Storage Renewables
Tonn
es o
f CO
2-e/
year
Site Wide Carbon Status
25%
62% 63% 64%
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Nutrient Cycle
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Biogas
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Trigeneration
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Trigeneration
0
10,000
20,000
30,000
40,000
50,000
60,000
-$20 -$15 -$10 -$5 $0 $5 $10 $15 $20
Tonn
es C
O2/
year
NPV
Millions
Environmental Performance Compared Against Net Present Value
RENEWABLES / OFFSETS
3MW
5MW
10.2MW24MW
Base Case (No Trigen)
Environmental Limitations of Trigeneration
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Comparison of Technology
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0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Capi
tal C
ost
per k
g CO
2 sa
ved
Percentage CO2 Reduction
Solar Tubes
PV
Wind
Biogas
50% Thermal Storage
100% Thermal storage
1MW Biomass
Trigen
Biomass 5MW
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Comparison of Technology
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0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
Capi
tal C
ost
per k
g CO
2 sa
ved
Percentage CO2 Reduction
Solar Tubes
PV
Wind
Biogas
50% Thermal Storage
100% Thermal storage
1MW Biomass
Trigen
Biomass 5MW
Incomparable carbon savings, high risk, high capital cost, long term payback
Heat competes with the trigen plant, expensive, looks good
Expensive, minimal output for multi storey buildings, looks good, helped building approval
Minimal output in the city and on small scale
Cost premium required but useful
Carbon effective, risky, expensive
Good carbon reduction, minimal risk, cost effective
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Buildings
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Find Us Online
w.
wspgoup.com/built-ecology.com
t.
twitter.com/WSPbuiltecology