4.1 About BCA Green Mark

The BCA-CDL Green Sparks Competition 2010

- Introduction to BCA Green Mark

Introduction

• Green buildings are gaining in importance as countries worldwide explore ways to reduce their carbon emissions.

• In Singapore, our key strategy to mitigate carbon emissions is to increase mitigate carbon emissions is to increase energy efficiency of various sectors.

• In particular, our large building stock which consumes about 30% of our national electricity consumption. Hence, BCA places special emphasis on achieving energy efficiency thru’ greening new & existing buildings.

Presentation Outline

A green building rating system to evaluate building

1. Green Buildings

2. BCA Green Mark Scheme

3. Green Mark Existing Buildings Criteria

4. Existing Green features in Fuji Xerox Towerfor its environmental impact and performance

4. Existing Green features in Fuji Xerox Tower

Green Buildings

Green buildings are designed to reduce & ultimately eliminate theoverall impact of the built environment on human health and thenatural environment.

Basic principles in green building practices & technologies are derived from practices & technologies are derived from :-

• Energy Efficiency

• Water Efficiency

• Waste Management & Minimization

• Indoor Environmental Quality

Zero Energy Building

Benefits of Green Buildings

to Building Owners

• lower operating & maintenance costs from less energy &

water consumed

• better indoor environmental quality & improved worker

productivity

• potential higher occupancy/tenancy rates• potential higher occupancy/tenancy rates

• lower tenant turnover

• ability to command higher lease rates

• recognition as being more socially responsible in caring

for the environment

Efficient use of energy equals savings on cost.

BCA Green Mark Scheme

A green building rating

system to evaluate

building for itsbuilding for its

environmental impact

and performance

Launched in Jan 2005 – a rating system for the tropics

Objectives of Green Mark

1. To promote environmental sustainability in the constructionindustry.

2. To raise the awareness among developers, building ownersand industry professionals on the environmental impact oftheir buildings.their buildings.

3. To give recognition to building owners & developers whoadopt green practices.

4. To identify best practices in the development, design, construction, management & operation of green buildings.

Green Mark Projects

As on Oct 2009,

337 buildings

are Green Mark

certified.

Updated as on 29 Oct 2009

BCA Green Mark Schemes

BCA Green Mark Schemes for New BuildingsBCA Green Mark Schemes for New Buildings

• Green Mark for Non-Residential Buildings

• Green Mark for Residential Buildings

• Green Mark for Landed Houses

BCA Green Mark Schemes for Existing BCA Green Mark Schemes for Existing BCA Green Mark Schemes for Existing BCA Green Mark Schemes for Existing BuildingsBuildings

• Green Mark for Non-Residential Buildings

• Green Mark for Residential Buildings (under development)

BCA Green Mark Schemes BCA Green Mark Schemes –– Beyond Beyond BuildingsBuildings

• Green Mark for Existing Parks

• Green Mark for New Parks Design & Development (under devt)

• Green Mark for Infrastructures

• Green Mark for Office Interiors

• Green Mark for District

Green Mark Assessment

Green Mark Rating Green Mark Points

Platinum 90 & above

GoldPlus 85 to <90

Point scoring approach, awarded for incorporating

environmental friendly features.

Gold 75 to <85

Certified 50 to <75

Green Mark Assessment

Criteria

Green Mark encourages the adoption of various green

building technologies & innovations to achieve better

performance in 5 key areas.

ENERGY EFFICIENCY

WATER EFFICIENCY

SUSTAINABLE OPERATION & MANAGEMENT

INDOOR ENVIRONMENTAL QUALITY

GREEN FEATURES & INNOVATIONS

Green Mark RatingsSolar Panels

Sky Garden

Efficient Lightings

IAQ AuditCO2 sensors

Double

Glazing

Sun-shading

BAS

Newater supplyOrganic Compost

Water Efficient

fittings

Recycling bins

Greeneries

Efficient chillers

Green Mark Criteria for

Non-residential

Existing Building Existing Building

(Version 2.1)

GM for Non-residential Existing Buildings Criteria (Ver. 2.1) can be downloaded

from : http://www.bca.gov.sg/GreenMark/others/GM_NREB_V2.1.pdf

GM Existing Buildings Assessment Criteria (Ver. 2.1)

Part 1 - Energy Efficiency

Energy efficiency offers a powerful and cost-effective tool for achieving a sustainable

building. This criteria is intended to encourage the greater use of energy efficient air-

conditioning system, monitoring of the energy consumption, plans to reduce energy

usage and also applications of renewable energy & energy efficient features.

1-1 Energy Efficiency (22 pts)

1-2 Systems Energy Efficiency (23 pts)

1-3 Energy Monitoring (4 pts)

1-4 Energy Policy & Management (4 pts)

1-5 Renewable Energy / Energy (10 pts)

Efficient Features

SUB-TOTAL = 63 pts

Part 2 - Water Efficiency

2-1 Water Monitoring (2 pts)


Water efficiency encourages buildings to adopt water efficient features, which can help

to reduce the use of water for building operations. Other important considerations

include monitoring of water consumption and plans for improvement.

2-1 Water Monitoring (2 pts)

2-2 Water Efficient Fittings (12 pts)

2-3 Alternative Water Sources (2 pts)

2-4 Water Efficiency Improvement Plans (1 pt)

2-5 Cooling Towers (1 pt)

SUB-TOTAL = 18 pts

Part 3 – Sustainable Operation & Management


This criterion looks at the management & operations of a building to ensure it is well

maintained & its environment-friendly features continued to function. It also considers the

role of the building managers/owners in promoting environmental awareness to

occupants. Use of greenery & waste management are also covered.

3-1 Building Operation & Maintenance (4 pts)

3-2 Post Occupancy Evaluation (2 pts)

3-3 Waste Management (8 pts)

3-4 Greenery (3 pts)

3-5 Public Transport Accessibility (2 pts)

SUB-TOTAL = 19 pts

Part 4 – Indoor Environmental Quality


To promote a healthy indoor environment, buildings are also assessed for their indoor air

quality performance and environmental protection including thermal comfort, lighting

levels, internal noise level, use of sustainable & environmental-friendly products and use

of refrigerants.

4-1 Indoor Air Quality Performance (6 pts)

4-2 Environmental Protection (5 pts)

4-3 Lighting Quality (4 pts)

4-4 Thermal Comfort (2 pts)

4-5 Internal Noise Level (1 pt)

SUB-TOTAL = 18 pts

Part 5 – Other Green Features


Innovation points are given to encourage the use of other innovative green features,

state-of-the-art environmental technologies in buildings. For example,

• green roof & roof garden

• vertical greening

• pneumatic waste collection system

5-1 Green Features & Innovations (10 pts)

SUB-TOTAL = 10 pts

• pneumatic waste collection system

• self production of compost by recycling organic waste

• ultraviolet light-C band (UV) emitters in all AHUs to improve indoor air quality

• auto condenser tube cleaning for chillers

• light shelves, light pipes

Green Roof & Vertical Greening – Other than producing oxygen, greenery on roof and walls has the benefit of reducing heat transmission into the building & reduce the need for air-conditioning.

Green Features / Innovations

Innovations – Light Shelves

Est. 3 - 5 metres

Light shelves are sunshades placed inside & outside the window. They

reflect sunlight & daylight into the interior space. Benefits in terms of

savings in electrical lighting & cooling load required.

Innovations – Photocell Sensors

Photocell sensors are placed at the perimeter of the office floors to detect daylight &

control corresponding lighting circuits in response to the amount of available natural

light. Energy savings in terms of less artificial lightings used.

LIGHTS OFF

Photocell sensors

Innovations – Motion Sensors

Sun / Light pipes



Automatic Condenser Tube Cleaning System

This system

automatically cleans

the condensing

pipes in the chiller & pipes in the chiller &

prevents the build

up of dirt in the

pipes. This will help

to maintain the

efficiency of the

chiller.


Car park guidance system

• Directs drivers to available empty lots

• Reduce the amount of CO emitted

from vehicles searching for empty from vehicles searching for empty

lots

• Reduction in CO will minimize the

operation of carpark ventilation fans,

hence saving energy consumption.

Pre-requisite requirements for PLATINUM(for Office Buildings)

� To achieve 90 points & above

� To achieve Energy Efficiency Index of 154 kWh/m²/yr


� To achieve Energy Efficiency Index of 154 kWh/m²/yr

(This is a measure of electricity consumed by an office building)

� To achieve air-con system efficiency of ≤ 0.7 kW/RT

(This indicates the electricity consumed by the aircon equipment)

� To achieve at least 12 points under Water Efficiency

Fuji Xerox Towers Green Mark GOLD

Picture & information courtesy of CDL

38-storey commercial

cum office building at

80 Anson Road

Existing Green & Energy Efficient features

� Efficient chillers, ≤ 0.67 kW/RT

� Variable speed drives for pumps & cooling towers

� Ultrasonic sensors to control lightings in toilets

Fuji Xerox Towers

� Ultrasonic sensors to control lightings in toilets

� Motion sensors to control lightings in staircases

� Energy efficient T5 lightings with electronic ballast for

carpark, common areas and landlord’s offices.

� LED EXIT signs

� Light sensors at carpark entrance/exit to control lightings in

the vicinity

Existing Water Efficient features

� Collection of AHU condensate water for cooling tower

� Water sub-meter provided to monitor water usage for

landscape

Fuji Xerox Towers

landscape

� Water sub-meter provided to monitor NEWater usage

� Using NEWater for cooling tower & sprinkler tanks

� All toilets basin using automatic taps

� Pantry areas using automatic taps

Documents

4.1 About BCA Green Mark