Transcript Which elements contribute most to carbon consumption?

Partners Conference
2013
Low Carbon Growth
Workshop
Mike Luton
SGC Major Sites Team
Growth
Carbon Consumption in Development
Construction phase
–
Materials specified etc
–
Transportation of materials to site
–
Site preparation – earth moving
–
Construction process
–
Management of construction waste
Operational phase
–
Heating
–
Electricity consumption
–
Transportation – commuting, shopping
trips etc
–
The life styles of future occupants
Which elements contribute most to carbon
consumption?
Where should our focus be?
Need whole life approach to reduce carbon
consumption across the board.
Reducing carbon consumption
1.
Where are we now?
How sustainable is South Gloucestershire
at present ?
2.
Where do we want to be?
How high should we be aiming?
(or for carbon consumption “How low can
we go?”)
Is a low carbon economy really
achievable?
3.
How do we get there?
Who needs to do what and by when?
1. Where are we now?
How sustainable is South Gloucestershire?
•
On a scale of 1-10 how would
you rate current carbon
consumption in South
Gloucestershire?
– Score 10 – Very high carbon
consumption
– Score 1 – very low
– Score 0 - zero carbon
10
9
8
7
6
5
4
3
2
1
0
How did we get here?
Post war planning and growth
1. Rapid suburban development
2. Economic growth and diversity
3. Increasing car ownership
•
1930 - 60 Growth Suburbs
–
–
–
•
1960 - 90 – Growth Market towns
–
–
•
Yate
Thornbury
Key messages
• General economic prosperity
•
A property owning and car owning
democracy - lots of choice
Bradley Stoke
Emersons Green.
•
Old housing stock
Ongoing growth of villages
•
Car based lifestyles
•
High dependency on fossil fuels.
1990 - 2010 – Growth Urban extensions
–
–
•
Filton,
Patchway,
Kingswood
2. Where do we want to be?
How low should we be aiming?
•
On a scale of 1-10 how low
do you think it is realistic to
aim for carbon consumption
in South Gloucestershire by
2026?
– Score 10 – Very high
carbon consumption
– Score 1 – Very low
– Score 0 - Zero carbon
consumption
– Is sub-zero possible?
10
9
8
7
6
5
4
3
2
1
0
-1
-2
Future needs/trends
•
More Growth
– 28,000+ new homes over 20 years
(c30% growth).
– More jobs
– Ageing population
•
More efficient cars
•
More power generation from gas,
nuclear and renewable sources.
•
New housing stock will be more energy
efficient in materials, thermal efficiency
and appliances.
– So is there a need to worry?
Council policy
•
South Gloucestershire Community Strategy 2012:
– Reducing carbon emissions is a cross cutting aim.
– ‘Place’ theme priority to delivering
• integrated low carbon communities,
• reducing carbon emissions from all sectors
• Improving energy security
•
Climate Change – Carbon Reduction Strategy being refreshed.
“Climate change is the greatest environmental challenge facing the world
today and we are committed to playing our part in limiting the dangerous
effects of climate change”.
Planning Policy
Core Strategy
– CS1 – High Quality Design – seeks layout and design to
achieve energy conservation
– CS3 – Renewable and Low Carbon Energy Generation
– CS4 – Renewable or Low carbon District Heat Networks
– CS7 – Strategic Transport Infrastructure - seek improved
public transport
– CS8 – Improving accessibility – Priority to travel options other
than the car.
• But also have to deliver 28,355 new homes and
commercial and industrial development
North Fringe and the Cribbs/ Patchway New
Neighbourhood
Aims
Meeting housing and employment needs
5,700 dwellings
50 hectares employment land – as part of
wider enterprise area based on
aerospace and advanced engineering.
•
Sustainable land uses – mixed uses
•
Improved public transport
–
Bus rapid transit
–
Remodelled Mall Bus Station
–
Heavy rail stations opened
•
Improved green routes
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Sustainable layout and design
•
Sustainable and shared utilities
Policies
•CS25 - North Fringe
•CS26 – C/P New Neighbourhood
Core Strategy Key Diagram
Cribbs Patchway New Neighbourhood SPD
3. How Do we get there?
Who needs to do what and by when?
Government
Local Government
Service providers/Utilities
Residents
Employers
“What can I do?”
Developers
Roles
Planners
– Not environmental police force
- don’t control things covered
by other legislation
– ‘facilitators of development’ –
promote more housing and
jobs
– Can influence and encourage
reduced impacts through
development policies, plans
and decisions
Environmental Controls
through:
– Building
regulations –
Historically bar not
set high.
– Environmental
regulations
Opportunities and Threats
Things which may help or hinder delivery of low carbon growth:
•
Government commitment
– Fiscal incentives – e.g. Low emission engines
– Building Regulations (Zero Carbon – 2016)
– Support for greener industries (e.g. aerospace)
– Support for low carbon power generation
•
Economy/Viability
– Construction industry confidence.
•
Consumer demand
•
Uncertainty
– Changing technology – what is available – and what to
specify and when
– Possible lack of joined up working
Summary
1.
Where have we come from?
– Rapid suburban development
– Car based economy
2.
Where are we heading?
– More intensive suburban development
– Greater mix of land-uses
– Better public transport and green routes
– Integrated utilities/heat networks etc
– Zero carbon Housing – allowable solutions – retrofit existing stock
3.
Are we on course?
– Must meet future growth needs – but in a more sustainable way.
4.
What , if anything, is stopping us?
– Historical decisions – inherited development
– Viability (in an uncertain economy)
– Lack of a shared commitment?
– Uncertainty - technological – (which way to turn?)
What is stopping us?
Nothing!!
The Codes
• Environmental Accreditation
systems.
– Code for Sustainable Homes
– BREEAM for commercial
buildings.
• CoSH - looks beyond building
regulations to assess all
aspects of the development.
• Use of Codes is voluntary.
Hanham Hall - Carbon Challenge
• Aim Code 6 – Zero Carbon
– Key messages
• Difficult to deliver Code 6
even with subsidies
• Provide for allowable
solutions – pragmatic
option.