1273049115 538
Energy Saving Trust support on meeting the Code for Sustainable Homes
Stephen Passmore Assistant Development Manager – Housing
The Energy Saving Trust • Set up by UK Government in 1992 • Act as a bridge between government, industry and the consumer • The leading organisation supporting Government to achieve the sustainable and efficient use of energy and to cut carbon dioxide emissions, one of the key contributors to climate change • Focus is domestic energy and transport and increasingly water and waste • Energy Saving Trust has offices in London, Edinburgh, Cardiff and Belfast and 21 regional ESTACs Energy Saving Trust Advice Centres. www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
The way forward • Build knowledge, skills and Capacity • Newbuild housing is important – design build monitor learn design better
• Energy efficiency needs to go in first – Not a short term fix of bolt-on measures
• Government needs to set an “integrated” framework – This includes clarity on approach to risk and uncertainty
• Incremental steps • Working together – learn from mistakes • Utilise Energy Saving Trust guidance – Guidance is for compliance with the energy elements of the Code www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Cumulative newbuild emissions: build as we do today 8.00
Million tonnes of carbon per year
7.00
6.00
5.00
4.00
3.00
2.00
1.00
0.00 2005
2010
2015
2020
2025
2030
2035
Year Heating & integrated lighting
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Appliances incl.microgen
2040
2045
2050
Code for Sustainable Homes guidance •
•
Energy Saving Trust has developed solutions and technical guidance to meeting level 3 (25%), level 4 (44%), level 5 (100%) and level 6 (zero carbon) This guidance is now available on the Energy Saving Trust website and in hard copy from our helpline
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Energy Saving Trust Code guidance principles • Impartial • Established methods • Challenging targets • Available technologies • Energy efficiency first • Design-led • Flexibility www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
How the Energy Saving Trust guidance works
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Design backstops National building regulations
Energy Saving Trust Code level 3 guidance
Roof
0.25
0.13
Walls
0.35
0.25
Exposed floors
0.25
0.20
Aspect
Opaque elements W/m2.K (area weighted average)
Windows BFRC band B rating. Windows and doors W/m2.K (area weighted average)
2.2
Air permeability
10
3
Accredited construction details (y=0.08)
Energy Saving Trust Enhanced construction details (y=0.04)
Thermal bridging
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Door U-values: 1.5 (glazed) 1.0 (solid)
How do you get the savings? • DER is 23 kgCO2/m2/yr (TER=DER) CO2 emissions breakdown: base case
Fabric Bridging Ventilation 0
5
10
15
20
25% reduction kgCO2/m 2/yr = 17.25
Space (main)
Space (secondary)
Water heating
Pumps and Fans
Lighting
Improvement
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
25
W/K 76.6 15.3 47.3
Fabric & ventilation •TER is now 17.18 kgCO2/m2/yr (TER=DER) CO2 emissions breakdown: plus insulation, airtightness, ventilation, details, orientation & controls
25%
0
5
10
15
20
25% reduction kgCO2/m2/yr = 17.25
Space (main)
Space (secondary)
Water heating
Pumps and Fans
Lighting
Improvement
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
25
Enhanced construction details
Enhanced Construction Details
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Printable details
Enhanced Construction Details
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Osborne and Raven Housing Trust Mid-street – the brief
East elevation
North elevation
West elevation
South elevation
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Osborne and Raven Housing Trust Mid-street – the result
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Monitoring • Energy Saving Trust monitoring protocols for housing developers/associations • Standardised approach to measure actual energy consumption & CO2 emissions • Measure fabric insulation performance & microgen technology performance • Basic/advanced options • Manual/remote data collection • Inform industry and consumer
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Continuing supporting you • 2016 taskforce – Identify barriers and implement measures – Develop a commitment publication – Develop a timeline
• More guidance, web tools, seminars • More monitoring • More practical solutions • More consumer engagement www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
www.energysavingtrust.org.uk
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Stephen Passmore Assistant Development Manager – Housing
The Energy Saving Trust • Set up by UK Government in 1992 • Act as a bridge between government, industry and the consumer • The leading organisation supporting Government to achieve the sustainable and efficient use of energy and to cut carbon dioxide emissions, one of the key contributors to climate change • Focus is domestic energy and transport and increasingly water and waste • Energy Saving Trust has offices in London, Edinburgh, Cardiff and Belfast and 21 regional ESTACs Energy Saving Trust Advice Centres. www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
The way forward • Build knowledge, skills and Capacity • Newbuild housing is important – design build monitor learn design better
• Energy efficiency needs to go in first – Not a short term fix of bolt-on measures
• Government needs to set an “integrated” framework – This includes clarity on approach to risk and uncertainty
• Incremental steps • Working together – learn from mistakes • Utilise Energy Saving Trust guidance – Guidance is for compliance with the energy elements of the Code www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Cumulative newbuild emissions: build as we do today 8.00
Million tonnes of carbon per year
7.00
6.00
5.00
4.00
3.00
2.00
1.00
0.00 2005
2010
2015
2020
2025
2030
2035
Year Heating & integrated lighting
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Appliances incl.microgen
2040
2045
2050
Code for Sustainable Homes guidance •
•
Energy Saving Trust has developed solutions and technical guidance to meeting level 3 (25%), level 4 (44%), level 5 (100%) and level 6 (zero carbon) This guidance is now available on the Energy Saving Trust website and in hard copy from our helpline
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Energy Saving Trust Code guidance principles • Impartial • Established methods • Challenging targets • Available technologies • Energy efficiency first • Design-led • Flexibility www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
How the Energy Saving Trust guidance works
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Design backstops National building regulations
Energy Saving Trust Code level 3 guidance
Roof
0.25
0.13
Walls
0.35
0.25
Exposed floors
0.25
0.20
Aspect
Opaque elements W/m2.K (area weighted average)
Windows BFRC band B rating. Windows and doors W/m2.K (area weighted average)
2.2
Air permeability
10
3
Accredited construction details (y=0.08)
Energy Saving Trust Enhanced construction details (y=0.04)
Thermal bridging
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Door U-values: 1.5 (glazed) 1.0 (solid)
How do you get the savings? • DER is 23 kgCO2/m2/yr (TER=DER) CO2 emissions breakdown: base case
Fabric Bridging Ventilation 0
5
10
15
20
25% reduction kgCO2/m 2/yr = 17.25
Space (main)
Space (secondary)
Water heating
Pumps and Fans
Lighting
Improvement
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
25
W/K 76.6 15.3 47.3
Fabric & ventilation •TER is now 17.18 kgCO2/m2/yr (TER=DER) CO2 emissions breakdown: plus insulation, airtightness, ventilation, details, orientation & controls
25%
0
5
10
15
20
25% reduction kgCO2/m2/yr = 17.25
Space (main)
Space (secondary)
Water heating
Pumps and Fans
Lighting
Improvement
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
25
Enhanced construction details
Enhanced Construction Details
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Printable details
Enhanced Construction Details
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Osborne and Raven Housing Trust Mid-street – the brief
East elevation
North elevation
West elevation
South elevation
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Osborne and Raven Housing Trust Mid-street – the result
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Monitoring • Energy Saving Trust monitoring protocols for housing developers/associations • Standardised approach to measure actual energy consumption & CO2 emissions • Measure fabric insulation performance & microgen technology performance • Basic/advanced options • Manual/remote data collection • Inform industry and consumer
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
Continuing supporting you • 2016 taskforce – Identify barriers and implement measures – Develop a commitment publication – Develop a timeline
• More guidance, web tools, seminars • More monitoring • More practical solutions • More consumer engagement www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
www.energysavingtrust.org.uk
www.energysavingtrust.org.uk/housing Technical helpline: 0845 120 7799
