Welcome SAP/SBEM Industry Workshops Section 6 Energy Standards Stewart Dalgarno Construction...

Welcome

SAP/SBEM Industry WorkshopsSection 6 Energy Standards

Stewart DalgarnoConstruction 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 – EnergyNon-domestic

2015 changes

Steven ScottBuilding Standards DivisionKingsland Primary School

Archial ArchitectsImage courtesy Paul Zanre

Non Domestic 2015CO2 emission reductions

43%

CO2 emissions reduction over 2007

CO2 emissions reduction over 2010

Section 7 - new non-domestic now meet silver aspect for CO2 emissions.

60%

• 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

Non Domestic 2015Standard 6.1 - CO2 emissions

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/Resource/0046/00469802.pdf

2015 notional building

specification

Non Domestic 2015Standard 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)

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 2015Building Services

Non Domestic 2015Otherwise…

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:[email protected] - 01506 [email protected] - 01506 600414

INSERT BRE

ENVIRONMENTAL DESIGN CONSULTANTS + LIGHTING DESIGNERS | atelierten.com

Section 6 – Energy Model Case Studies AUGUST 2015

Shaping a more sustainable world

Shaping a more sustainable worldand healthy

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.

International Building Services and Environmental Engineers

Case Study Models

Retail Example

BUILDING ELEMENTEXAMPLE OF 2013 COMPLIANT

SPECIFICATIONEXAMPLE OF 2015 COMPLIANT SPECIFICATION

Fabric Performances

Wall U-value: 0.26 W/m²K

Floor U-value: 0.22 W/m²K

Roof U-value: 0.20 W/m²K

Window U-value: 1.6 W/m²K

Building Air Tightness: 3 m3/hr·m²






Heating/ coolingGas fired air handing units to sales floor (80%

efficiency). Electric panel to back of house

Radiant panels to sales floor & radiator central heating to

back of house (Mains Gas LTHW boiler 92% efficiency)

Domestic Hot Water Electric instantaneous Electric instantaneous

Ventilation Mechanical Ventilation (No heat recovery) Mechanical Ventilation with 80% efficient heat recovery

Lighting

High performing T5 to sales areas and CFLs in

back of house areas. Daylight dimming to

sales floor & offices

High performing T5 to sales areas and CFLs in back of

house areas. Daylight dimming to sales floor & offices

Renewables None 100m² PV Array (4% GIFA)

BER 67.63 40.70

TER 42.03 42.03

2015 Section 6 Compliance

NO (Failed by 25.6 kgCO2/m²) YES (Pass by 1.33 kgCO2/m²)

School Example


SPECIFICATION2015 NOTIONAL BUILDING SPECIFICATION

Fabric Performances






Wall U-value: 0.23/0.20 W/m²K

Floor U-value: 0.22/0.20 W/m²K

Roof U-value: 0.18/0.16 W/m²K

Window U-value: 1.8/1.6 W/m²K

Building Air Tightness: 5/3 m3/hr·m²

Heating/ cooling Ground Sourced Heat Pump (GSHP) Heat Pump (electric @ 157.5% efficiency)

Domestic Hot Water Gas fired Water heaters Gas fired Water heaters (86.45% efficiency)

Ventilation Natural Ventilation Assessed on zone by zone basis

Lighting

High performing T5 to classrooms and LEDs in

core/ toilets.

Daylight dimming and occupancy sensing

applied throughout

60/65 luminaire lumens per circuit-watt

Occupancy sensing ( Manual-on-Auto-off)

Renewables GSHP + 208m² PV Array (8.4% GIFA) PV (5.4kWh per m² GIA)

Hotel Example



Fabric Performances











Heating/ coolingAir Sourced Heat Pump (ASHP)/ Variable

Refrigerant Flow (VRF)

Heat Pump (electric @ 157.5% efficiency)

Cooling SEER 4.5Domestic Hot Water Gas fired water heaters Gas fired Water heaters (86.45% efficiency)

VentilationMechanical Ventilation with 65% efficient heat

recovery

Assessed on zone by zone basis. Where present, MVHR

70% efficiency

Lighting

LED lighting to corridors, bedrooms & en-suites.

High performing T5 to back of house areas.

Manual switching control to bedrooms.



Renewables ASHP

PV (5.4kWh/m² GIA)

Note – for multi-storey, PV array limited to 50% of roof area

Office Example



Fabric Performances




Curtain Wall U-value: 1.36 W/m²K

Building Air Tightness: 3.58 m3/hr·m²






Heating/ coolingAir Sourced Heat Pump (ASHP)/ Variable

Refrigerant Flow (VRF)Heat Pump (electric) 157.5% efficiency Cooling SEER 4.5

Domestic Hot Water Gas fired water heaters Gas fired water heaters (86.45% efficiency)

VentilationMechanical Ventilation with 80% efficient heat

recovery

Assessed on zone by zone basis. Where present, MVHR

70% efficiency

LightingHigh performing T5 to offices and LEDs in core/

toilets. Daylight dimming to offices



Renewables ASHP

PV (5.4kWh/m² GIA)

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


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 Constructions

Heating/cooling

Ventilation

DHW

Lighting

Renewables

BER

2013 TER2015 TER

Fabric Performance


Heating/cooling

Ventilation

DHW

Lighting

Renewables

BER

2013 TER2015 TER

Fabric Performance


Heating/cooling

Ventilation

DHW

Lighting

Renewables

BER

2013 TER2015 TER

Fabric Performance


Heating/cooling

Ventilation

DHW

Lighting

Renewables

BER

2013 TER2015 TER

Retail

School

Hotel

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 pre-printed 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

• Are there any themes appearing?

• Can we group issues?• Are there any logical links

between risk and opportunities?

NOTE _ Please use the marker pens as we need to photograph the wall charts for the final report

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

• 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.

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.

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

Stewart DalgarnoConstruction Scotland ILG Member

Lead on Planning & Building Standards Work Group

WWW.CS-IC.org

Welcome SAP/SBEM Industry Workshops Section 6 Energy Standards Stewart Dalgarno Construction...

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