Singapore’s Green Building
Energy Efficiency Standards

Singapore BCA Green Mark Scheme• A green building rating tool for the tropics• Launched in Jan 2005
• To evaluate buildings for its environmental
impact & performanceTowards a Sustainable Singapore

80% of the Entire Building Stockto be “Greened” by 2030
2009

2011

2012

2013

2014 2015

2008
2006

Legislation for
BCA Centre for Existing Buildings

2005

SustainableBuildings
Legislation for
New Buildings

Focus
Greening New
Buildings

Focus
Greening Existing
Buildings

Focus
Greening Occupantsand Tenants

Multi-Pronged Approach
Government
Taking theLeadImposing
MinimumStandardsIncentivising
Private Sector

Green
Building
Masterplan

6 strategic thrusts
with emphasis on
existing buildings,
beyond & within buildingsInternationalProfiling &Raising
Awareness

Development
Work inGreen Bldg
Technology

BuildingIndustry
Capabilities
ThroughTraining

PSTLES v2.0 2015•

Building Sustainability• Greenmark Platinum for new buildings(A/C FA> 5,000m2)•• Water Efficient Building• Install private water meters

NewGreenmark GoldPLUS for buildings(A/C FA > 10,000m2) by 2020

• Greenmark Gold for small and mid-sizedexisting buildings (GFA>5000m2) by2020•NewOffice Sustainability• Green Mark Gold for Office Interior
at next retrofit

Revised• Recycling programmes• Indoor Air Temp >24°C• Green Procurement• ENERGY STAR for ICT equipment• Office rental in Green Mark GoldPLUS buildings New• Events and functions to be held in GreenMark certified hotels, convention centre

New• Green leasing of government buildings and premises•

Capability Building• Training for SMs & FOMs

Incentives & Financing Schemes
Bonus Gross
Floor Area

Green MarkGFA
58,000 m2
Committed

IncentiveSchemes$20m New Buildings
Fully Committed
S$100m Existing Buildings
Fully Committed
S$5m Design Prototype
S$2m Committed
S$50m Existing Buildingand Premises
NEW!

Financing
Schemes
Building Retrofit
Energy Efficiency
Financing(BREEF)
Co-share risk withPrivate FinancialInstitutions

Legislating Minimum Green Building Standards

Building Control (Environmental Sustainability) Regulations 2008
Minimum GM standards for new buildings
Environmental Sustainability Measures for Existing Buildings (2012)

Minimum GM standards for existing buildings
Three-yearly energy audit on cooling system andcompliance of design system efficiency
Annual submission of building information &energy consumption data

Mandatory Energy Data Disclosure by Building Owner
Building Energy Consumption
Building Energy Submission System (BESS)
Analysis of consumption patterns
Building Energy Benchmarking Report (BEBR)

Building Owners’ & Tenants’Electricity Consumption

Phased approach in energy disclosureand building energy display
Voluntary Building Energy
Performance DisclosureBuilding Energy Benchmarking Report

Where are we?
What can wedo?

Legislating Minimum Green Building Standards
Existing Building Legislation Phase I(effective from 2nd Jan 2014)
Area

GFA >15,000m2
Building Types

Trigger Point

Major energy usechange i.e. Install/
replace ChillerCommercial
Buildings
Phase I EB
Legislation

Legislating Minimum Green Building Standards
Existing Building Legislation Phase II(effective from 2nd Jan 2017)
Area

GFA >5,000m2
Building Types

Trigger Point

Major energy usechange i.e. Install/
replace Chiller

Extended to allbuilding types
Phase II EB
Legislation

Green Mark Criteria for Air-Con Plant Efficiency
Water-cooled chilled water systems
Green Mark
RatingPeak Building Cooling Load(RT)<500 ton≥ 500 ton

Air-cooled chilled water systems / Unitary
Green MarkRating

Efficiency (kW/RT)

Peak Building Cooling Load(RT)<500 ton≥ 500 ton

Efficiency (kW/RT)

Certified

0.85

0.75

Certified

1.1

Gold

0.80

0.70

Gold

1.0

GoldPlus

0.75

0.68

GoldPlus

0.85

Platinum

0.70

0.65

Platinum

0.78

1.0NotApplicableMandating Periodic Energy Audit of Chiller Plant(effective from 2nd Jan 2014)

Cooling system accounts
for as much as 50% of thebuilding’s total energy
consumption.

Regular maintenance & optimisationof the cooling system is critical toensure that it continues to operate
efficientlyMandating Periodic Energy Audit of Chiller Plant(effective from 2nd Jan 2014)
3-Yearly Cycle
STARTBuilding
completes
chiller retrofit
and has obtain
BCA’s ABapproval

YEAR
3Issues notice forEnergy Audit

Building Ownerappoints a
professional tocarry out Audit

PE(Mech)/EA ensure
M&V and Audit
comply to Code andsubmit to BCA

Issues noticeof Approval

YEAR
6Issues noticefor EnergyAudit

Building Ownerappoints a
professional tocarry out Audit

PE(Mech)/EAensure M&V andAudit comply to
Code and submit
to BCA
Issues noticeof Approval

YEAR
9Issues notice forEnergy Audit

Building Ownerappoints a
professional tocarry out Audit

PE(Mech)/EAensure M&V andAudit comply to
Code and submit toBCA

Issues notice ofApproval

YEAR
12 …
Issues notice forEnergy Audit

Building Ownerappoints a
professional tocarry out Audit

PE(Mech)/EAensure M&V andAudit comply to
Code and submit
to BCA

Issues notice ofApproval

RESTART
Building
replace/change
Chillers or
redevelops site

Mandating Periodic Energy Audit of Chiller Plant(effective from 2nd Jan 2014)

Measurement & Verification Requirements for
Chilled Water Systems+/- 0.05 °C end-to-end

Up to 2%Chilled-water
side:TSTR

FlowMeterCoolingload

Condenserwater side:

TSTR

FlowMeterHeatRejection

Main ControlBoard:

Power Meters(Chillers, Pumps and Cooling Towers)

Energy Use Intensity (EUI) of 100 Retrofitted
Existing Buildings
800

Average Energy Savings of 17%
600
400
2000

Average EUI Before retrofit = 328 kWh/m2.yr
Average EUI After retrofit = 274 kWh/m2.yr

Retrofitted Existing Buildings(Offices/ Hotels/ Retail Buildings/ Mix Developments)
Before Retrofit* Graph is available in BCA Building Energy Benchmarking Report 2016

Study on Air-Con System Efficiency

Continuous Monitoring Through Chiller Efficiency
Smart Portal••••Continuous monitoring
Performance base-lining by machine learning
Trend Analytics to spot performance variance
Autonomous alarm

Continuous Monitoring Through Chiller Efficiency
Smart Portal

Air Distribution System Efficiency Study
Distribution of Energy Within Air-Conditioning System

Pumps,
10%

Cooling Towers,
5%

Air distribution system
contribute significantly to thetotal energy performance

Fans, 30%

Chiller

FansChiller,
55%

Pumps

Cooling Towers

Air Distribution System Efficiency Study

The studies did notreveal strong
relationshipbetween W/CMHand kW/RTAir Conditioning System Efficiency
High potential savings inair distribution system

Energy Labelling and Standards for Appliances& Equipment•

NEA administers the Mandatory Energy Labelling Scheme (MELS) andMinimum Energy Performance Standards (MEPS)•

Mandatory Energy Labelling Scheme (MELS)
 Empowers households to make better purchasing choices
 Encourages suppliers to bring in more EE appliances astechnology improves

 Covers air-conditioners, refrigerators, clothes dryers,
televisions and lamps for general lighting purposes•Minimum Energy Performance Standards (MEPS) Help households avoid being locked into high energy consumption andenergy costs of the most inefficient appliances Improve lifecycle cost savings for households
 Cover air-conditioners, refrigerators, clothes dryers and lamps

Energy Labelling & Standards for Air-conditioners• Covers single-phase, non-ducted air-conditioners
Multi-split

Single-split(wall mounted, cassette,ceiling etc.)(wall mounted, cassette,ceiling etc.)

Up to 17.6 kW

Up to 17.6 kW

Casement /Window

Up to 8.8 kW

Energy Labelling & Standards for Lamps• Covers incandescent lamps for general lighting purposes andlamps intended as their direct replacements
Incandescent(25 – 200W)

Compact fluorescent(up to 60W)

LED(up to 60W)

Compact fluorescent lamps withintegrated ballasts (CFLi)

Non-directional LED lamps withintegrated ballasts

Tungsten-filament

Tungsten-halogen• Studying feasibility of extending MEPS/MELS to other lamp types

Barriers & Counter-measures
Close Collaboration with Singapore Green Building Council

Zero Capital Partnership Scheme

Energy Performance Contract
Objective
To accelerateenergy efficiency
retrofits

Building owner can work with an Energy
Performance Contracting (EPC) firm
achieve greater energy efficiency withzero capital outlay.

A standard reference document for bothsides of the industry: the building owners andthe EPC firms when procuring energy
efficiency retrofit or renewable energy
installation works

Singapore Green Building Week 2017
IGBC - The Premier Green Building Event in Asia
12 – 14 September 2017
Marina Bay Sands,
Singapore

What to anticipate at IGBC 2017:
 Behind the Success of Positive/Zero/Super Low Energy Buildings
 Digitalisation of Buildings
 A Bird’s Eye View of the Sustainable Built Environment
 Updates of Green Mark Schemes Changing Behaviour towards Sustainability
 Building Healthy Spaces
 Green Tours

Organised by

Strategic Partners

BE THECHANGE

Co-Located Events

SGBW Official Website: http://www.sgbw.com.sg
SGBW Facebook page: https://www.facebook.com/igbcsg

Thank you