joe atkinson lilaclilac.coop › wp-content › uploads › 2017 › 04 › low-impact.pdf ·...
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Joe Atkinson
LILAC LOW IMPACT LIVING
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Location
Urban setting: 'compact cities'.Good access to sustainable transport options
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Segregated cycle path direct to city centre encourages cycling
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Site Design Principles
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Site Design PrinciplesPrivate homes of mixed (& modest) size;Common house for communal activities & shared infrastructure.
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Limited car parking at periphery; pedestrianised central spaces; ample cycle storage
Private homes of mixed (& modest) size;Common house for communal activities & shared infrastructure.
Site Design Principles
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Private homes of mixed (& modest) size;Common house for communal activities & shared infrastructure.
Small private gardens;Large communal gardens, play & growing spaces Limited car parking at periphery; pedestrianised
central spaces; ample cycle storage
Site Design Principles
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Private homes of mixed (& modest) size;Common house for communal activities & shared infrastructure.
Small private gardens;Large communal gardens, play & growing spaces
Buildings orientated to balance natural surveillance & community-building with passive solar gain
Limited car parking at periphery; pedestrianised central spaces; ample cycle storage
Site Design Principles
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'Fabric first' approach
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Triple glazing
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MVHR
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Solar PV
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Solar thermal
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Year 1 Year 2 Year 30
50
100
150
200
250
300
350
400
Annual Gas & Electricity BillsGround floor 1 bedroom flat at LILAC
ElectricityGas
3 yr total: £928: how do adjustments for appliance use, occupancy & microgeneration influence this?
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2013 Q2
2013 Q32013 Q4
2014 Q12014 Q2
2014 Q32014 Q4
2015 Q12015 Q2
2015 Q32015 Q4
2016 Q12016 Q2
£0.00
£20.00
£40.00
£60.00
£80.00
£100.00
£120.00
£140.00
£160.00
Quarterly Gas & Electricity Costs
ElectricityGas
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2013 Q2
2013 Q32013 Q4
2014 Q12014 Q2
2014 Q32014 Q4
2015 Q12015 Q2
2015 Q32015 Q4
2016 Q12016 Q2
£0.00
£20.00
£40.00
£60.00
£80.00
£100.00
£120.00
£140.00
£160.00
Quarterly Gas & Electricity Costs
ElectricityGas
Single bill for
Q3 & Q4 In 2015
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year to Q1 2014year to Q3 2014
year to Q1 2015year to Q3 2015
year to Q1 2016
0
20
40
60
80
100
120
Moving Average Annual Total Energy Use per m2
Total net energy demand per square metre = “Specific Primary Energy Demand” in Passivhaus standardgas demandSpace heating/m2 (assumes 60% of gas used for space heating)
kWh
/ m2
/ yr
How does it compare to passivhaus standard?
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SUDS/Rainwater harvesting
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Landscaping
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Allotments
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Community composting
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Economies of scale
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Communal laundry
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Shared workshop & tools
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Local/ethical economic impacts
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Community enablesemergent green behaviour
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Informal re-use/recycling
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Affordable housing as enabler of social/environmental action
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Any questions?
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Resources - reading"Towards an agenda for Post-carbon Cities: Lessons from LILAC, the UK's first Ecological, Affordable Cohousing Community" Chatterton, P. 2013 International Journal of Urban and Regional Research vol. 37 no. 5
"Cohousing", McCamant, K. Durret, C. 1998
"Creating a Life Together: Practical Tools to Grow Ecovillages and Intentional Communities" Christian, D.L. 2003
"Cohousing in Britain: A Diggers and Dreamers Review" Bunker, C. et al 2011
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Organisations: non-profit/advocacy
www.lilac.coop / @lilacleeds www.cohousing.org.uk www.cds.coop www.communitylandtrusts.org.uk www.nasba.org.uk www.seedsforchange.org.uk www.ica-uk.org.uk