Thriving Neighbourhoods

Transformational Sustainability

David Jarratt@davidjarratt

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.

Alternate Ventilation Systems

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

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

What opportunities exist on the Precinct Scale

Simple

Adjustable

Fun

Healthy

Well made

Stable & Dependable

No Batteries

Safe

Bright Colours

Affordable

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

Cycles

Energy

Water

NutrientLife

Future

Carlton United Brewery – Fraser’s BroadwayCentral Park

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

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.”

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

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

Hierarchy of Carbon Neutrality

Minimise Demand

Zero Emission Energy Sources (PV, Wind, Bioenergy)

Carbon EfficientEnergy Sources(trigen) + Carbon Offsets

Quantification

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60,000

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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

Frasers Broadway – Carbon

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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%

Nutrient Cycle

Biogas

Trigeneration

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

Comparison of Technology

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$24

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

Comparison of Technology

$0

$2

$4

$6

$8

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$14

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$18

$20

$22

$24

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

Buildings

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