SALIX HOMES RETROFIT STUDY
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SALIX HOMES RETROFIT STUDY Alison Ball Tim Whitley. Salix Homes Retrofit Study commissioned by GM Procure. Study Aims Viability of an innovative retrofit programme Most effective low carbon technologies Job and training opportunities Behaviour change programme

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Salix homes retrofit study alison ball tim whitley

SALIX HOMES RETROFIT STUDY

Alison Ball

Tim Whitley


Salix homes retrofit study alison ball tim whitley

Salix Homes Retrofit Study commissioned by GM Procure

Study Aims

Viability of an innovative retrofit programme

Most effective low carbon technologies

Job and training opportunities

Behaviour change programme

Methodology for calculating SROI

Funding sources

Replication


Methodology

SAP calculations

Government tool

Results in kgCO2/m2

Assumed Occupancy

Doesn’t include appliances

Hot

water

Heating

Fans + pumps

Lighting

Appliances

+

cooking

+

plug loads

Dwelling Emissions

Included in SAP Results

Not in SAP Results

Methodology

Methodology


Properties chosen

Properties chosen

Properties chosen


Properties chosen1

Properties chosen

Current Property Condition

  • New boiler

  • Double glazed

  • Some roof insulation

  • Natural Ventilation

  • Leaky building


Salix homes retrofit study alison ball tim whitley

Results 1 - CO2 reduction


Salix homes retrofit study alison ball tim whitley

Results 1 - CO2 reduction


Salix homes retrofit study alison ball tim whitley

Results 2 Running Cost Savings


Salix homes retrofit study alison ball tim whitley

Results 2 Running Cost Savings


Salix homes retrofit study alison ball tim whitley

Results 3 – Capital cost per kg Carbon saved


Salix homes retrofit study alison ball tim whitley

Results 3 – Capital cost per kg Carbon saved


Salix homes retrofit study alison ball tim whitley

Results 4 – Capital cost vs. running cost saving


Salix homes retrofit study alison ball tim whitley

Results 4 – Capital cost vs. running cost saving


Salix homes retrofit study alison ball tim whitley

Flats

Wall insulation

Roof insulation

MVHR systems

Results


Salix homes retrofit study alison ball tim whitley

Houses

Wall insulation

Roof insulation

Biomass – other issues

MVHR systems

NOT air source heat pumps

Results


Salix homes retrofit study alison ball tim whitley

Houses

Decent homes standards typically 25% reduction

Target 35% reduction in CO2 from Decent Homes standard

Target £200 running cost saving

Max 10:1 invest to save ratio

Targets


Salix homes retrofit study alison ball tim whitley

Flats

Decent homes standards typically 20% reduction

Target 35% reduction in CO2 from Decent Homes standard

Target £60 running cost saving

Max 10:1 invest to save ratio

Targets


Salix homes retrofit study alison ball tim whitley

GMP procure have a robust model

£1m turnover (labour) spend delivers 2 training places

126 trainees recruited to date

Access to real jobs in construction

Opportunity for unemployed tenants

Job and Training Opportunities


Salix homes retrofit study alison ball tim whitley

Job and Training Opportunities

Possible jobs created


Salix homes retrofit study alison ball tim whitley

Comprehensive approach

Tried and tested tools

Participation mechanisms

Reward and celebrate

Framework to build on

Tenant engagement and behaviour change

Current


Salix homes retrofit study alison ball tim whitley

Tangible opportunity

Repeatable cycle

Awareness about benefits

Train tenants

Monitor change

Feedback findings

Key roles

Tenant engagement and behaviour change

Opportunities


Salix homes retrofit study alison ball tim whitley

Gentoo Housing - Sunderland

Staffordshire Housing

Greenoak Housing – Surrey and Sussex

Drum Housing - Hampshire

Places for People - Lancashire

Behaviour Change Case Studies


Salix homes retrofit study alison ball tim whitley

Non economic impacts tool

New Economics Foundation

Wider benefit measurement - debt risk, comfort level, health

Evaluative or forecast

Maximise capital investment benefits

SROI

strategic planning tool

communication impact

attracting investment

evaluate social value

Social Return on Investment - SROI


Salix homes retrofit study alison ball tim whitley

Robust methodology

Evidenced approach

Monitoring

Cross section of Salix dwellings

Representative for North West?

Replicability


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