4.1 about bca green mark
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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)
GM Existing Buildings Assessment Criteria (Ver. 2.1)
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
GM Existing Buildings Assessment Criteria (Ver. 2.1)
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
GM Existing Buildings Assessment Criteria (Ver. 2.1)
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
GM Existing Buildings Assessment Criteria (Ver. 2.1)
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
Green Features / Innovations
Green Features / Innovations
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.
Green Features / Innovations
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
GM Existing Buildings Assessment Criteria (Ver. 2.1)
� 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