Green Mark Existing Buildings Criteria clean Mark Existing Buildings... · GM for Non-residential Existing Buildings Criteria (Ver. 2 ... for achieving system efficiency of 0.9 kW/RT

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

Green Mark for EXISTING Buildings – Point Allocation

Part 1 – Energy Efficiency Pts

1-1 Energy Efficiency 22

1-2 Systems Energy Efficiency 23

1-3 Energy Monitoring 4

1-4 Energy Policy & Management

4

1-5 Renewable Energy/Energy Efficient Features

10

Sub-total for Part 1 (Max 50 pts) 63

Part 3 – Sustainable Operation & Mgt Pts

3-1 Building operation & maintenance 4

3-2 Post occupancy evaluation 2

3-3 Waste management 8

3-4 Greenery 3

3-5 Public Transport Accessibility 2

Sub-total for Part 3 19

Part 4 – Indoor Environmental QualitySub-total for Part 1 (Max 50 pts) 63

Part 2 – Water Efficiency

2-1 Water Monitoring 2

2-2 Water Efficient Fittings 12

2-3 Alternative Water Sources 2

2-4 Water Efficiency Improvement Plans

1

2-5 Cooling Towers 1


Part 4 – Indoor Environmental Quality

4-1 Indoor air quality performance 6

4-2 Environmental protection 5

4-3 Lighting quality 4

4-4 Thermal comfort 2

4-5 Internal noise level 1


Part 5 – Green Features & Innovations 10


Part 1 = 63 pts (cap at 50pts) Part 2, 3, 4 & 5 = 65 pts (cap at 50 pts)

Green Mark for Existing

Buildings

Green Mark Award Rating

Green Mark Rating Green Mark Points

Platinum 90 & abovePlatinum 90 & above

Goldplus 85 to <90

Gold 75 to <85

Certified 50 to <75

Green

Mark

Try

AgainCertified Gold Gold Plus Platinum

Score 0 49 50 74 75 84 85 89 90 100

GM Existing Buildings

Assessment Criteria (Ver. 2.1)

Part 1 - Energy Efficiency

Energy efficiency 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 1-1 ENERGY EFFICIENCY (22 points)

REQUIREMENTSREQUIREMENTS

AIMAIM

To achieve increased building energy efficiency against similar buildingtypes to promote efficient use of energy.


OPTION A : Applicable for buildings where energy benchmark is not available. To demonstrate energy savings over its own historical baseline versus over last 3 years.

15 points given for achieving 10% energy savings from the baseline.

0.2 point for every subsequent percentage improvement from the baseline of 10 % savings.

Part 1-1 ENERGY EFFICIENCY

OPTION B : Applicable for Retail Mall, Hotels & Office buildings based on available energy benchmark. For Office, Energy Efficiency Index (EEI) is 215 kWh/m2/yr.

15 points given for achieving the energy benchmark.

0.2 point for every subsequent percentage improvement from

benchmark.

EEI for Office buildings = (TBEC / GFA) * (55 / OH)

EXAMPLE OF EEI CALCULATION

Total building energy consumption (TBEC) = 12,345,678 kWh/yr (from electricity bills)

Gross floor area (GFA) = 65,000 m2

Operating Hours (OH) = 60 hrs/week

EEI = (12,345,678 / 65,000) * (55 / 60) = 174 kWh/m2/yr

Percentage improvement = (215 – 174) / 215 = 0.19 or 19%

Points = 15 + (19% x 0.2) = 18.8 pts

EEI for Office buildings = (TBEC / GFA) * (55 / OH)

GM Existing Buildings Assessment Criteria (Ver. 2.1)

Part 1-2 SYSTEM EFFICIENCY (23 points)

AIMAIM

To encourage the use of efficient air-conditioning system, lighting systemand mechanical ventilation system, to minimize energy consumption.

REQUIREMENTS FOR AIRREQUIREMENTS FOR AIR--CONDITIONING SYSTEMCONDITIONING SYSTEM (13 points)(13 points)

7 points given for achieving system efficiency of 0.9 kW/RT.

Example

Chiller plant efficiency = 0.67 kW/RT

Improvement = 0.9 – 0.67 = 0.23 kW/RT

Total Points = 7 + (0.23 / 0.05) = 11.6 pts

1 point for every subsequent 0.05 kW/RT improvement from 0.9 kW/RT.


Part 1-2 SYSTEM EFFICIENCY

REQUIREMENTS FOR LIGHTING SYSTEMREQUIREMENTS FOR LIGHTING SYSTEM (8 points)(8 points)

To encourage optimization of lighting system efficiency.

2 points given for achieving lighting density of 5% better than lighting power budget in SS 530.

0.5 point for every subsequent percentage improvement from above baseline.baseline.

Types of usage Watts /m2

Offices 15

Corridors 10

Staircases 6

Car parks 5

Maximum Lighting Power Budget (SS 530)

GM Existing Buildings Assessment Criteria (Ver. 2.1)Example for Lighting Power Budget

LocationArea

(m²)Qty

Watts

per

fitting

Ballast

Loss per

fitting

Total

Power (W)

SS 530

(W / m²)

SS 530

(W)

Office 1 1000 300 36 W 3 11700 15 15000

Office 2 1200 340 36 W 3 13260 15 18000

Corridor 300 50 26 W 5 1550 10 3000Corridor 300 50 26 W 5 1550 10 3000

Staircase 50 5 36 W 3 195 6 300

TOTAL 26705 36300

% Savings = (36300 – 26705) / 36300 = 26.4%

Points = 0.5 x 26.4% = 13.2 pts = 4 pts (cap b’cos exclude tenant)

Part 1-2 SYSTEM EFFICIENCY

REQUIREMENTS FOR MECHANICAL VENTILATION SYSTEMREQUIREMENTS FOR MECHANICAL VENTILATION SYSTEM

To calculate the power budget (W/m²) for the mechanical ventilation system for car parks, toilets, staircases, kitchens, etc.

2 points given for submitting the power budget calculation.

Example

Area Qty Power (W) Total area (m²) W/m²

Toilet fans 3 250 150 1.67

Car park fans 4 6000 7000 0.86

Staircase fans 2 800 400 2.0

TOTAL 9 7050 7550 0.94

Part 1-3 ENERGY MONITORING (4 points)

AIMAIM

To encourage monitoring of main building systems performancesand electricity consumption.


(a)2 points given for the provision of Building Automation System (BAS) to monitor & trend log building system performance (e.g. chillers, pumps, air handling units).

(b)2 points given for the provision of sub-meters to track energy consumption of major building uses (e.g. retail / office tenants, water features, lifts, etc).


Part 1-4 ENERGY POLICY & MANAGEMENT (4 points)

REQUIREMENTS *REQUIREMENTS *

(a) 2 points given if building management can demonstrate their commitment towards environmental sustainability via energy policy

AIMAIM

To encourage senior management to have energy policy &commitment towards energy efficiency improvement plans.

commitment towards environmental sustainability via energy policy

& energy targets. Documentary proof to be submitted.

(b) 2 points given if building management can show intent, measures &

implementation strategies of energy efficiency improvement plans

to achieve energy targets set over next 3 years. Committed energy

savings should be quantifiable.

(c) 1 point given if the building’s Energy Efficiency Index (EEI) is

calculated & submitted, including the monthly energy bills & the commitment to disclose the annual building energy consumption.


Part 1-5 RENEWABLE ENERGY / ENERGY EFFICIENT FEATURES (10 Bonus points)

REQUIREMENTREQUIREMENT

Examples of renewable energy include solar panels, wind turbines.

AIMAIM

To encourage the application of renewable energy andimplementation of energy efficient features.

Examples of energy efficient features are motion sensors, photo sensors, CO sensors, light shelves, etc.

1 point is given for every 0.2% replacement of electricity.

Example

Savings from motion sensors = 0.4% (of total building consumption)

Points = 0.4 / 0.2 = 2 pts

Part 2 - Water Efficiency

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 2-1 WATER MONITORING (2 points)


2 points given for the provision of water

AIMAIM

To encourage the use of water meters and leak detection system forbetter monitoring and control at major water usage areas (e.g.cooling tower, water features, tenant’s usage).

2 points given for the provision of water meters & leak detection system.

Documentary proof such as drawing plans or photographs of the meters shall be submitted.


Part 2-2 WATER EFFICIENT FITTINGS (12 points)


a) Up to 9 points given for the use of water efficient fittings under WELS. Points shall be awarded based on the number & WELS rating for taps, bib taps, showers, sink & urinals.

AIMAIM

To encourage the use of water efficient fittings under PUB’s WaterEfficiency Labeling Scheme (WELS). Link : http://www.sec.org.sg/wels/

bib taps, showers, sink & urinals. Based on WELS rating : Very Good – 6 points

Excellent – 9 points

(6 points given if building has achieved the PUB Water Efficient Building)

b) Up to 3 points for the use of dual flushing low capacity flushing system or adopt equivalent water efficient flush volumes. Based on WELS rating : Good - 1 point

Very Good – 6 pointsExcellent – 9 points


WATER EFFICIENT FITTINGS UNDER WELS

GM Existing Buildings Assessment Criteria (Ver. 2.1)Water Efficiency Calculation

No. Water Fitting Type

WELS Rating (Quantity) WithoutApproved

RatingTotalExcellent

(9 pts)Very Good

(6 pts)

1 Shower taps and mixers 0 30 30 60

2 Showerheads 0 30 30 60

3 Basin taps and mixers 100 10 100 210

4 Sink/bib taps & mixers 0 0 0 04 Sink/bib taps & mixers 0 0 0 0

5 Urinals & urinal flush valves 0 80 0 80

Total no. based on rating (A) 100 150 160 410

Weightage (B) 9 6 0 -

Total (AXB) 900 900 0 1800

Total Weightage = 1800

Total quantity = 410

Points Scored = 1800 / 410 = 4.39


Part 2-3 ALTERNATIVE WATER SOURCES (2 points)


Alternative water sources include rainwater, NEWater and AHU

AIMAIM

To encourage the use of alternative water sources for non-potableuses such as irrigation, washing, cooling tower make-up water,water features.

condensate.

Up to 2 points given based on the percentage reduction in potable water usage. Calculation to be submitted.

> 50% – 2 points< 10% to 50% – 1 point> 10% – 0.5 points

Part 2-4 WATER EFFICIENCY IMPROVEMENT PLANS (1 point)

AIMAIM

To encourage building management to set targets to reduce thebuilding water consumption over the next 3 years.


1 point given if building management set targets to improve its water performance by demonstrating the intent, measures and implementation strategies of the water efficiency improvement plans over the next 3 years. Committed water savings shall be calculated & submitted.

Part 2-5 COOLING TOWERS (1 point)

REQUIREMENT *REQUIREMENT *

AIMAIM

To reduce the water usage in the cooling tower water treatment.


1 point given if there is documentary proof from water treatment vendor to show that the water treatment achieves 7 or better cycles of concentration.

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

covered.


Part 3-1 BUILDING OPERATION & MAINTENANCE

(4 points)


a) 1 point given if building management can show sustainability

strategy and plan, which must be actively implemented & actively

AIMAIM

To encourage building management to show commitment towardssustainable operation & maintenance.

strategy and plan, which must be actively implemented & actively

reviewed. E.g. environmental policy, cleaning schedule, SOP for SAR.

b) 1 point given if building management involves building occupants or

visitors in its environmental sustainability plans. E.g. Green Guide

highlighting best practices to reduce energy use, water use &

maintain good indoor environment.

c) 1 point given if there is in-house certified Green Mark Manager (GMM)

and/or Singapore Certified Energy Manager (SCEM).

d) 1 point given if building management has ISO 14000 certification

(environmental management system).

Part 3-2 POST OCCUPANCY EVALUATION (2 points)

AIMAIM

To conduct yearly post occupancy evaluation (POE) to assessbuilding’s occupants satisfaction with the indoor environmentcondition (e.g. lighting, temperature, cleanliness, etc)


a) 1 point is given if POE is conducted.

b) 1 point is given for the corrective actions taken following the POE.

GM Existing Buildings Assessment Criteria (Ver. 2.1)Part 3-3 WASTE MANAGEMENT (8 points)


a) 1 point given for the provision of recycling facilities for sorting & separate collection of recyclable waste. E.g. recycling bins.

AIMAIM

To encourage waste minimization & recycling.

separate collection of recyclable waste. E.g. recycling bins.

b) 1 point given if building management promotes & encourages waste recycling & minimization among tenants, occupants & visitors. E.g. poster, websites.

c) 4 points given if recycling company is engaged for waste sorting, collection & recycling. Amount of waste to be monitored & quantified.

d) Up to 2 points given if can achieve reduction in total waste (exclude recycled waste) over own historical baseline.


Part 3-4 GREENERY (3 points)


a) Up to 2 points given for the provision of trees, palms, grass & other greeneries.

AIMAIM

To recognize & encourage greater use of greenery.

b) 1 point given for the Use of compost recycled from horticulture waste.

Greenery Provision (GnP)

GnP = 0.5 to < 1.0 (0.5 point)

GnP = 1.0 to < 1.5 (1 point)

GnP = 1.5 to < 3.0 (1.5 points)

GnP ≥ 3.0 (2 points)

GM Existing Buildings Assessment Criteria (Ver. 2.1)SAMPLE CALCULATION FOR GREEN PLOT RATIO

Tree Palms

Qty @ Rainforest 132 56

Qty @ Plaza 53 30

Qty @ Blk 1 182 0

Qty @ Blk 2 90 7

Qty @ Blk 3 123 0

Qty @ Blk 4 147 0

Qty @ Blk 5 121 0

Type of Greenery

Description Qty Unit Canopy Radius GAI Green Area

Tree 1,165 nos 3.14 3.5 6 268,870.35

Palms 93 nos 3.14 1 4 1,168.08

Shrubs 7,420 m2 NA NA 3 22,260.00

Landscape area 53,000 m2 NA NA 1 53,000.00

Total Green Area: 345,298.43

Total Green Area 345,298.43 m2 =Total Site Area 160,000.00 m2

Point scored GnP > 2 < 3 = 0.5 pts

Greenery Provision: 2.16

Qty @ Blk 5 121 0

Qty @ Blk 7 317 0

Total 1,165 93

1.5 points

Part 3-5 PUBLIC TRANSPORT ACCESSIBILITY (2 points)

AIMAIM

To encourage the use of public transport or bicycles to reducepollution from individual car use.


a) 1 point given if the building has good access to public transport such as MRT/LRT or bus stops.

b) 1 point given for the provision of adequate bicycles parking lots.

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

GM Existing Buildings Assessment Criteria (Ver. 2.1)Part 4-1 INDOOR AIR QUALITY PERFORMANCE

(6 points)


AIMAIM

To encourage good indoor air quality (IAQ) to ensure the comfort &well being of the building occupants.

a) 4 points given if IAQ audit is performed & complies to NEA’s Guidelines for Good Indoor Air Quality in Office Premises.

b) 1 point given for the provision of Carbon Dioxide monitoring for Air Handling units to ensure delivery of sufficient / minimum outside air requirements.

c) 1 point given for the provision of Carbon Monoxide monitoring in car parks areas.

GM Existing Buildings Assessment Criteria (Ver. 2.1)Part 4-2 ENVIRONMENTAL PROTECTION (5 points)


a) Up to 2 points given for the use of sustainable &

AIMAIM

To minimize airborne contaminants from indoor sources to promotea healthy indoor environment.

a) Up to 2 points given for the use of sustainable & environmental friendly products with green label under the SGLS.

b) 1 point given for the provision of Green Procurement Policy.

c) 1 point given if chiller’s refrigerant has zero ODP & <100 GWP. E.g. R134A

d) 1 point given for the provision of refrigerant leak detection system in the chiller plant room.

GM Existing Buildings Assessment Criteria (Ver. 2.1)Part 4-3 LIGHTING QUALITY (4 points)


a) 1 point given if the lighting lux level complies

AIMAIM

To encourage good workplace lighting quality to promote productivity& comfort of occupants.

a) 1 point given if the lighting lux level complies with SS531 / CP38.

b) For controllability of lighting system, 0.5 point if by light switches & 1 point if by task lights.

c) Up to 2 points given for the provision of high frequency ballasts for areas served by fluorescent lightings.

Part 4-4 THERMAL COMFORT

(2 points)


AIMAIM

To ensure the thermal comfort for building occupants.


a) 1 point given if comfort levels comply with CP13, i.e.

- Indoor temperature between 22.5°C to 25.5°C

- Relative humidity < 70%

b) 1 point given if occupants can control the indoor temperatures.

Part 4-5 INTERNAL NOISE LEVEL

(1 point)

AIMAIM

To ensure the internal noise level are maintained at appropriatelevels.


1 point given if the internal noise level is maintained with sound levels as recommended in CP 13.

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



5-1 Green Features & Innovations (10 pts)

SUB-TOTAL = 10 pts

• vertical greening

• 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


Part 5-1 GREEN FEATURES & INNOVATIONS (10 points)


AIMAIM

To encourage other green features not stated in the previoussection, which are innovative and have positive environmentalimpact.


a) 2 points for High impact items (e.g. Green Lease)

b) 1 point for Medium impact items (e.g. car park guidance system)

c) 0.5 point given for Low impact items

Examples: For recycling of AHU condensate water,

1 point for > 75% of AHU

0.5 point for < 75% of AHU

To achieve the Green Mark Gold, Goldplus and Platinum rating, the

project has to meet the following pre-requisite requirements:

(1) For Green Mark Gold Rating

PRE-REQUISITE REQUIREMENTS



(1) For Green Mark Gold Rating

� Office, Hotel Buildings and Retail Malls – To achieve the following

Energy Efficiency Index (EEI) i.e.

- EEI of 205 kWh/m2/yr for offices

- EEI of 404 kWh/m2/yr for hotels

- EEI of 459 kWh/m2/yr for retail malls

� Other Building Types – Demonstrate 15% energy savings over last

three years.

(2) For Green Mark Goldplus Rating

■ Office, Hotel Buildings and Retail Malls – To achieve the following Energy Efficiency Index (EEI) i.e.








■ Air-conditioning system efficiency is ≤ 0.75 kW/RT

■ Other Building Types – To demonstrate 30% energy savings over

last three years.

■ At least 10 points under Water Efficiency (Part 2).

(3) For Green Mark Platinum Rating

■ Office, Hotel Buildings and Retail Malls – To achieve the following Energy Efficiency Index (EEI) i.e.








■ Air-conditioning system efficiency is ≤ 0.7 kW/RT

■ Other Building Types – To demonstrate 35% energy savings over

last three years.

■ At least 12 points under Water Efficiency (Part 2).

GREEN MARK SCORING SUMMARY

ASSESSMENT CRITERIA POINTS

AVAILABLE SCORES

ENERGY EFFICIENCY (To achieve minimum 30 points)

Part 1 – Energy Efficiency

1-1 Energy Efficiency 22

1-2 Systems Energy Efficiency 23

1-3 Energy Monitoring 4

1-4 Energy Policy & Management 4

1-5 Renewable Energy / Energy Efficient Features [BONUS] 10

Maxim

um

Cap o

f 50 p

oin

ts

can b

e s

core

d

Min

imum

30 p

oin

ts to b

e

score

d

SubTotal (Part 1) 63

OTHER GREEN REQUIREMENTS (To achieve minimum 20 points)

Part 2 - Water Efficiency

2-1 Water Monitoring 2

2-2 Water Efficient Fittings 12

2-3 Alternative Water Sources 2

2-4 Water Efficiency Improvement Plans 1

2-5 Cooling Towers 1


e s

core

d

Green Mark

Scoring

Summary

Part 3 - Sustainable Operation & Management

3-1 Building Operation & Maintenance 4

3-2 Post Occupancy Evaluation 2

3-3 Waste Management 8

3-4 Greenery 3

3-5 Public Transport Accessibility 2


Part 4 - Indoor Environmental Quality

4-1 Indoor Air Quality Performance 6

4-2 Environmental Protection 5

4-3 Lighting Quality 4

4-4 Thermal Comfort 2

4-5 Internal Noise Level 1


Part 5 – Other Green Features [BONUS]

Maxim

um

Cap o

f 50 p

oin

ts c

an b

e s

core

d

Min

imum

20 p

oin

ts to b

e s

core

d


GRAND TOTAL 128

Thank Thank youyou

Documents

Green Mark Existing Buildings Criteria clean Mark Existing Buildings... · GM for Non-residential Existing Buildings Criteria (Ver. 2 ... for achieving system efficiency of 0.9 kW/RT