Welcome
SAP/SBEM Industry Workshops
Section 6 Energy Standards
Stewart Dalgarno
Construction Scotland ILG Member
Lead on Planning & Building Standards Work Group
Construction Scotland
•
The leadership organisation for the sector.
•
Unique partnership of businesses, trade bodies ,
universities & government
•
Scottish Construction Industry Strategy (Oct 12)
• Safer, successful & forward looking industry
• Driving innovation & productivity
• Working in partnership to deliver low carbon
environment
• Building a dynamic, united industry with a
cohesive voice
WWW.CS-IC.org
Purpose of Today
• Raise awareness of the changes (Oct 15)
• Discuss & gather feedback on the
implications
• Document issues, for future discussion with
SBS & Industry
Agenda – Half Day
• Part 1 – Presentations (60 mins)
• Comfort break (15 mins)
• Part 2 – Workshop: Break Out Groups (90 mins)
• Part 3 – Summary & Close (30 mins)
Rob Pannell, Managing Director ZCH, Event Facilitator
Section 6 – Energy
Non-domestic
2015 changes
Kingsland Primary School
Archial Architects
Image courtesy Paul Zanre
Steven Scott
Building Standards Division
Non Domestic 2015
CO2 emission reductions
CO2 emissions
reduction over 2007
60%
CO2 emissions
reduction over 2010
43%
Section 7 - new nondomestic now meet silver
aspect for CO2 emissions.
Non Domestic 2015
Standard 6.1 - CO2 emissions
• 2015 notional building specification
• Differs for natural & mechanically
ventilated zones in building
• Heating /fuel in actual building sets TER
• Low Carbon Equipment element
• 6.1 now applies to large extensions
• 2015 NCM Modelling Guide applied
within SBEM v5.2f
Summary table taken from
published research on the impact
of moving from v4 to v5 SBEM http://www.gov.scot/Resource/0
046/00465748.pdf
2015
notional
building
specification
Table taken from published
2015 NCM Modelling
Guide for Scotland http://www.gov.scot/Reso
urce/0046/00469802.pdf
2015
notional
building
specification
Non Domestic 2015
Standard 6.2 - building fabric
• Changes relate to standard 6.1 and
TER/BER
• ‘Backstop’ U-values for newbuild
unchanged
• Option to apply default 10% additional
heat loss for linear thermal bridging
• Update on situations where airtightness
testing of new buildings need not be
undertaken (UK alignment)
Non Domestic 2015
Building Services
6.3 - Heating systems
6.4 - Insulation of
pipes, ducts & vessels
6.5 - Artificial lighting
& display lighting
6.6 - Mechanical vent.
& air conditioning
Non Domestic 2015
Otherwise…
Provisions unchanged for new build:
•6.7 - Commissioning building services
•6.8 - Written Information
•6.9 - Energy Performance certificates
•6.10 - Metering
Reminder:
•Standard 6.1 & consideration of high-efficiency
alternative systems*
* see http://www.gov.scot/Resource/0042/00427425.pdf
Thank you for listening...
See www.gov.scot/s6-2015
Contacts at BSD:
fraser.walsh@gov.scot - 01506 600415
steven.scott@gov.scot - 01506 600414
INSERT BRE
Section 6 – Energy Model Case Studies
AUGUST 2015
ENVIRONMENTAL DESIGN CONSULTANTS + LIGHTING DESIGNERS | atelierten.com
Shaping a more sustainable world
Shaping a more sustainable world
International Building Services and Environmental Engineers
We are an international team of building services engineers, environmental designers and lighting
designers focused on delivering sustainability in the built environment.
We have been designing “green” buildings for 24 years and have evolved a team with the broad range
of complementary skills that are essential to the design of high performance buildings of the future.
Case Study Models
Retail Example
BUILDING ELEMENT
Fabric Performances
Heating/ cooling
Domestic Hot Water
Ventilation
Lighting
EXAMPLE OF 2013 COMPLIANT SPECIFICATION
EXAMPLE OF 2015 COMPLIANT SPECIFICATION
Wall U-value: 0.26 W/m²K
Wall U-value: 0.19 W/m²K
Floor U-value: 0.22 W/m²K
Floor U-value: 0.18 W/m²K
Roof U-value: 0.20 W/m²K
Roof U-value: 0.20 W/m²K
Window U-value: 1.6 W/m²K
Window U-value: 1.1 W/m²K
Building Air Tightness: 3 m3/hr·m²
Building Air Tightness: 3 m3/hr·m²
Gas fired air handing units to sales floor (80% efficiency).
Radiant panels to sales floor & radiator central heating to back of house
Electric panel to back of house
(Mains Gas LTHW boiler 92% efficiency)
Electric instantaneous
Electric instantaneous
Mechanical Ventilation (No heat recovery)
Mechanical Ventilation with 80% efficient heat recovery
High performing T5 to sales areas and CFLs in back of
High performing T5 to sales areas and CFLs in back of house areas.
house areas. Daylight dimming to sales floor & offices
Daylight dimming to sales floor & offices
Renewables
None
100m² PV Array (4% GIFA)
BER
67.63
40.70
TER
42.03
42.03
NO (Failed by 25.6 kgCO2/m²)
YES (Pass by 1.33 kgCO2/m²)
2015 Section 6 Compliance
School Example
BUILDING ELEMENT
Fabric Performances
Heating/ cooling
Domestic Hot Water
Ventilation
EXAMPLE OF 2013 COMPLIANT SPECIFICATION
2015 NOTIONAL BUILDING SPECIFICATION
Wall U-value: 0.26 W/m²K
Wall U-value: 0.23/0.20 W/m²K
Floor U-value: 0.22 W/m²K
Floor U-value: 0.22/0.20 W/m²K
Roof U-value: 0.18 W/m²K
Roof U-value: 0.18/0.16 W/m²K
Window U-value: 1.6 W/m²K
Window U-value: 1.8/1.6 W/m²K
Building Air Tightness: 5 m3/hr·m²
Building Air Tightness: 5/3 m3/hr·m²
Ground Sourced Heat Pump (GSHP)
Heat Pump (electric @ 157.5% efficiency)
Gas fired Water heaters
Gas fired Water heaters (86.45% efficiency)
Natural Ventilation
Assessed on zone by zone basis
High performing T5 to classrooms and LEDs in core/
Lighting
toilets.
Daylight dimming and occupancy sensing applied
60/65 luminaire lumens per circuit-watt
Occupancy sensing ( Manual-on-Auto-off)
throughout
Renewables
GSHP + 208m² PV Array (8.4% GIFA)
PV (5.4kWh per m² GIA)
Hotel Example
BUILDING ELEMENT
Fabric Performances
Heating/ cooling
Domestic Hot Water
Ventilation
Lighting
EXAMPLE OF 2013 COMPLIANT SPECIFICATION
2015 NOTIONAL BUILDING SPECIFICATION
Wall U-value: 0.22 W/m²K
Wall U-value: 0.23/0.20 W/m²K
Floor U-value: 0.20 W/m²K
Floor U-value: 0.22/0.20 W/m²K
Roof U-value: 0.17 W/m²K
Roof U-value: 0.18/0.16 W/m²K
Window U-value: 1.6 W/m²K
Window U-value: 1.8/1.6 W/m²K
Building Air Tightness: 5 m3/hr·m²
Building Air Tightness: 5/3 m3/hr·m²
Air Sourced Heat Pump (ASHP)/ Variable Refrigerant Flow
(VRF)
Heat Pump (electric @ 157.5% efficiency)
Cooling SEER 4.5
Gas fired water heaters
Gas fired Water heaters (86.45% efficiency)
Mechanical Ventilation with 65% efficient heat recovery
Assessed on zone by zone basis. Where present, MVHR 70% efficiency
LED lighting to corridors, bedrooms & en-suites.
60/65 luminaire lumens per circuit-watt
High performing T5 to back of house areas. Manual
switching control to bedrooms.
Occupancy sensing ( Manual-on-Auto-off)
PV (5.4kWh/m² GIA)
Renewables
ASHP
Note – for multi-storey, PV array limited to 50% of roof area
Office Example
BUILDING ELEMENT
Fabric Performances
Heating/ cooling
Domestic Hot Water
Ventilation
Lighting
EXAMPLE OF 2013 COMPLIANT SPECIFICATION
2015 NOTIONAL BUILDING SPECIFICATION
Wall U-value: 0.19 W/m²K
Wall U-value: 0.23/0.20 W/m²K
Floor U-value: 0.15 W/m²K
Floor U-value: 0.22/0.20 W/m²K
Roof U-value: 0.13 W/m²K
Roof U-value: 0.18/0.16 W/m²K
Curtain Wall U-value: 1.36 W/m²K
Window U-value: 1.8/1.6 W/m²K
Building Air Tightness: 3.58 m3/hr·m²
Building Air Tightness: 5/3 m3/hr·m²
Air Sourced Heat Pump (ASHP)/ Variable Refrigerant Flow
(VRF)
Heat Pump (electric) 157.5% efficiency Cooling SEER 4.5
Gas fired water heaters
Gas fired water heaters (86.45% efficiency)
Mechanical Ventilation with 80% efficient heat recovery
Assessed on zone by zone basis. Where present, MVHR 70% efficiency
High performing T5 to offices and LEDs in core/ toilets.
Daylight dimming to offices
60/65 luminaire lumens per circuit-watt
Occupancy sensing ( Manual-on-Auto-off)
PV (5.4kWh/m² GIA)
Renewables
ASHP
Note – for multi-storey, PV array limited to 50% of roof area
Conclusions
• Modelling becoming more detailed –
Dynamic Simulation Modelling
• Early stage modelling to define façade
designs and glazing fenestration
• Passive design measures to reduce
heating, cooling & lighting loads
• Consideration of LZCT at project outset
• High levels of thermal performance and
air tightness – balance with healthy
indoor environment
• Spatial planning to consider larger plant
and equipment & integration of LZCT
Thank You!
Any Questions ?
Part 2 SBEM Workshop
Facilitated by Jack Brayshaw
Elmhurst Energy
Part 2 SBEM Workshop
Objective:
• Gather feedback on the critical areas where industry considers there to be
risks and opportunities
• Provide the Building Standards Division concise feedback indicating where
government and industry can collaborate to deliver more robust solutions
for the 2015 standards and beyond
Building Scenarios
Building Type
Typical Spec to 2013
requirements
Potential Building Spec to
Achieve 2015 Standards
Office
Fabric
Performance
Fabric
Performance
Fabric
Constructions
Fabric
Performance
Fabric
Constructions
Fabric
Constructions
Fabric Performance
Fabric
Constructions
Heating/cooling
Retail
Heating/cooling
Heating/cooling
Ventilation
Ventilation
School
Heating/cooling
Ventilation
Ventilation
DHW
DHW
DHW
DHW
Lighting
Lighting
Lighting
Renewables
Renewables
Renewables
Lighting
Hotel
Renewables
BER
BER
2013 TER
2015 TER
BER
2013 TER
2015 TER
BER
2013 TER
2015 TER
2013 TER
2015 TER
Part 2 SBEM Workshop
Handouts
A range of pre-calculated solutions will be
presented to provide the attendees with an
appreciation of the new performance
requirements.
In addition the following wall chart will be preprinted in large format and co-branded with
supporting partner logos etc.
Step 1: Opportunities and Risks
•
5 top risks and / or opportunities
industry face delivering the new
2015 building standards.
•
Think across the entire new build
process / supply chain.
•
Populate the top half of the chart
with post –its in appropriate column
•
Once all post its are up step back and
discuss
•
•
•
NOTE _ Please use the marker pens as we
need to photograph the wall charts for the
final report
Are there any themes
appearing?
Can we group issues?
Are there any logical links
between risk and
opportunities?
Step 2: How could industry & government make this
change a success? • 5 top ideas for Industry and /
or Government initiatives.
• Think across the entire new
build process / supply chain.
• Stick post it notes up on the
wall chart at the point most
appropriate
NOTE _ These ideas do not have to specifically
relate to any of the earlier post its or groups.
All good if they do but not essential.
• Discuss
• Are there any themes
appearing / can we
group some?
• Ideas can be for
promotional activity /
best practice case studies
/ shared R&D activities /
planning incentives? etc.
Part 3 Facilitator Summary
5 minutes for the Facilitator from each table to
summarise findings
Thank You
SAP/SBEM Industry Workshops
Section 6 Energy Standards
WWW.CS-IC.org
Stewart Dalgarno
Construction Scotland ILG Member
Lead on Planning & Building Standards Work Group