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You are an employee of TLY Pte Ltd and have just attended the Certification Course for Green Mark Facilities Managers (GMFM). After completing the course, you are tasked to lead the Green Mark assessment for the company headquarter building. The building is a 15-storey office building with 2-storey basement, with Gross Floor Area of 37,800m2. It was built in 1998 and has not obtained any Green Mark award before. The company targets to achieve Green Mark Gold. The HQ building is a single tenant and building the assessment should cover the entire building.  

1. You are required to demonstrate your understanding of what was learnt in your GMFM course by submitting the application with relevant supporting documents for Green Mark certification. As the project leader, assess and recommend an appropriate version of BCA Green Mark assessment criteria for the headquarter building.

2. Prior to assessing the building’s current score, explain and discuss with the management the certification process with BCA in order to obtain Green Mark Gold for the Green Mark criteria recommended.

3. Please also assess and compute the assessment fee (including GST) in your briefing to the management. Include a screen shot of the assessment fee guide from BCA website that you have made reference to.

4. After you have completed your assessment, you are required to appraise and present to the management of the company current Green Mark score points of the existing headquarter office building based on the preliminary findings.

Next, demonstrate your detailed breakdown of the targeted scoring of the building, in order to obtain the Green Mark Gold award. You are also advised to include additional points in your proposal for buffer.  

Note : In your proposal, you are required to estimate the energy savings, replacement of electricity by renewable energy and Energy Efficiency Index based on the Monthly Electricity Consumption (kWh) 

6. Explain and discuss the necessary reasons for all categories under the Green Mark framework. You are also required to include your calculations, such as the percentage savings in deriving the points scored.

Assessment Criteria for Green Mark Certification

1. You are required to demonstrate your understanding of what was learnt in your GMFM course by submitting the application with relevant supporting documents for Green Mark certification. As the project leader, assess and recommend an appropriate version of BCA Green Mark assessment criteria for the headquarter building.

The assessment criteria that will be used for headquarter building will be energy efficiency, which will comprise of ensuring that the following areas have the highest scores for it to be able to win the Green mark gold, the area under consideration will include, monthly electrical meter monitory through reading it, the performance based on the thermal on the envelope of the building, thermal parameters, system of air conditioning, density of light, lifts having efficiency of energy, management of energy, energy efficient renewed and finally artificial lighting.

2. Prior to assessing the building’s current score, explain and discuss with the management the certification process with BCA in order to obtain Green Mark Gold for the Green Mark criteria recommended.

In order to achieve Green Mark Gold then the management should ensure that the following areas or sections will have to achieve the stipulated points.

  1. Under the energy efficiency management should ensure that it is possible for it to achieve a minimum of four points.
  2. Under lighting power the budget should be able to achieve a minimum of 24%
  3. Creation of awareness on the building tenants regarding the sustainable environment, the management should ensure this section achieves three points.
  4. Achievement of three points by ensuring that environmental policies and review on it.
  5. Setting up a reminder that is capable of maintaining air conditioning at 240
  6. Achievement of two points on the involvement of management in all the activities.
  7. Achieving two points by providing a green corner in each house unit with enough house working material.
  8. Appoint in each and every floor an environmental chairman to ensure every sector that involvement environment in each floor is totally addressed to the management in time.

3. Please also assess and compute the assessment fee (including GST) in your briefing to the management. Include a screen shot of the assessment fee guide from BCA website that you have made reference to.

Size

Existing HQ building

GFA: square metre

Assessment fee for certification

Medium and above

37,800

= $8,900 for the first 15, 000 m2

= $0.15 *(37800 – 15000)

 = $3,420

Total = $8900 + $34200 = $12,320

GTS = 7% * $12,320

    = $862.40

Net cost = $8900 + $34200 + $862.40 = $13,182.40

4. After you have completed your assessment, you are required to appraise and present to the management of the company current Green Mark score points of the existing headquarter office building based on the preliminary findings. (Preliminary findings are provided in Appendix A)

Category

Available Points

Current

Points

(Q4) 

Proposed

Additional

Points

(Q5) 

Total

Points

(Q4+Q5)

Reasons (Q6) 

Energy Efficiency

1-1

 Thermal performance of building envelope

· Maximum permissible REVT = 30 W/m2

10

5

15

 REVT should be less or equal to 22 W/m2

1-2

 System of air conditioning

a) Ac having a unit of condensing model and coefficient of performance

b) An A/c system efficiency

· Air conditioners

· Unitary

12

10

22

 Energy reduction by ensuring that efficient system of air conditioning is used.

Point scored = 0.2 * percentage improvement

                        = 0.2 * 1.08 = 0.216%

1-3

Daylight

4

2

6

To obtain a maximum power budget of lighting for either artificial light or control lights will comply with 530: 2014.

1-4

Energy efficient index

3

4

7

1-5

System artificial of lighting

3

7

10

To obtain a maximum power budget of lighting for either artificial light or control lights will comply with 530: 2014.

1-6

Ventilation in carpark

4

2

6

Use to reduce the energy that will needed for operation of car park.

Point scored = 0.05 * percentage from baseline

                          = 0.05 * 1.08 = 0.054%

1-7

Lift

0

1

1

The lift will be required to be equipped with a variable AC voltage, features of sleep mode and variable frequency (VVVF).

1-8

Renewable energy

Encouragement on applying sources of renewable energy in HQ building

· use of solar energy

· use of sun pipes

· use of system that recover heat

· use of lifts that are regenerative

· use of light shelves

· use of heat pumps

8

12

20

Encourage use of renewable energy

5. Next, demonstrate your detailed breakdown of the targeted scoring of the building, in order to obtain the Green Mark Gold award. You are also advised to include additional points in your proposal for buffer.  

Note : In your proposal, you are required to estimate the energy savings, replacement of electricity by renewable energy and Energy Efficiency Index based on the Monthly Electricity Consumption (kWh).

Energy efficiency

Points

Thermal performance of building envelope

REVT reduced to 22 W/m2 or less.

Target point awarded = 15 points

Energy efficiency

i) Calculation of energy utilisation index in kWh/m2/year

ii) Calculation of Energy index per occupant person

(kWh/person/year)

a) Secondary energy utilisation in  kWh/m2/year


Prior requirement: ensure there is an achievement of 8 point
b) The secondary energy index per person per year
Prior requirement: ensure there is an achievement of 7 pointTotal point targeted = 15 points

Points

Secondary

8

7

6

5

4

Points

Secondary

7

6

5

4

3

System of air conditioning

a) Ac having a unit of condensing model and coefficient of performance

b) An A/c system efficiency

· Air conditioners

· Unitary

High temperature on the rooms

Prior requirement: ensure there is an achievement of 11 point

i. Cooling load of more than 500RT

Achievement efficiency of 1.1 kW/ton will result to 4 points

The improvement of percentage in the efficiency of the Chiller plant that is better than 1.0 kW/ton will achieve 0.2 points

Scored point = 0.2 * the percentage of improvement.

ii. Cooling load of less than 500RT

Achievement efficiency of 1.0 kW/ton will result to 4 points

The improvement of percentage in the efficiency of the Chiller plant that is better than 1.0 kW/ton will achieve 0.25 points

Scored point = 0.25 * the percentage of improvement.

Achievement of up to 1 point

Total point targeted = 22 points

Artificial system of lighting

a) Power budget

b) Photon light sensors in

i) Toilets

ii) Staircases

iii) Controlling of lights

Awarding of 0.25 points for an improvement percentage on power budget lighting

Scored point = 0.25 * the percentage of improvement that will be better than LPB

Prior requirement will award 5 points

Coverage extension of at least 90% on areas which are applicable

Awarding of 0.5 points on each area which are applicable.

Tenant adjusting light to their comfortable use.

Less than 50% of light control  award (1 point)

Less than 90% of light control  award (2 point)

Total targeted awarded points = 10 points

Ventilation in;

i) Toilets

ii) Staircases

iii) Corridors  

Natural ventilation award 1 point

Mechanical ventilation award 0.5 points

Total target point awarded = 6 points

Lift

Total targeted point   of 1 point for well working installed lift

Renewable energy

Encouragement on applying sources of renewable energy in HQ building

· use of solar energy

· use of sun pipes

· use of system that recover heat

· use of lifts that are regenerative

· use of light shelves

· use of heat pumps

Awarding of 3 points if 1% energy will be saved based the total building consumption.

Total target point awarded = 12 points

6. Explain and discuss the necessary reasons for all categories under the Green Mark framework. You are also required to include your calculations, such as the percentage savings in deriving the points scored.

The efficient energy system of air conditioning will require less energy if it has better system performance in production and distribution of air in the spaces of the HQ building

The unitary system of air conditioning for cooling load should have a minimum of NA(0.9, N.A) for value that is less than 500 RT in order to achieve a Gold rating of Green Mark.

The system of water cooled chill for cooling load should have a minimum of N.A(0.75, N.A) for value that is less than 500 RT in order to achieve a Gold rating of Green Mark.

The system district cooling for cooling load should have a minimum of 0.9(0.65, N.A) for minimum value of DSE in order to achieve a Gold rating of Green Mark

The lighting energy efficiency that will have adequate strategies of control will require less energy for it to illuminate the HQ building space, to obtain a maximum power budget of lighting for either artificial light or control lights will comply with 530: 2014.

The vertical efficiency of lift transportation should use less energy to ferry the tenants on the upper floors of the HQ building,  therefore the lift will be required to be equipped with a variable AC voltage, features of sleep mode and variable frequency (VVVF).

The energy needed in production and distribution of air conditioned in HQ building need to be reduced by ensuring that efficient system of air conditioning is used.

Point scored = 0.2 * percentage improvement

= 0.2 * 1.08 = 0.216%

The usage of efficient energy of the ventilation of car park and system of light should use to reduce the energy that will needed for operation of car park.

Point scored = 0.05 * percentage from baseline

= 0.05 * 1.08 = 0.054%

Reference

Chua, S. C., & Oh, T. H. (2011). Green progress and prospect in Malaysia. Renewable and Sustainable Energy Reviews, 15(6), 2850-2861.

Deng, Y., Li, Z., & Quigley, J. M. (2012). Economic returns to energy-efficient investments in the housing market: evidence from Singapore. Regional Science and Urban Economics, 42(3), 506-515.

Hwang, B. G., & Tan, J. S. (2012). Green building project management: obstacles and solutions for sustainable development. Sustainable development, 20(5), 335-349.

Mao, X., Lu, H., & Li, Q. (2009, September). A comparison study of mainstream sustainable/green building rating tools in the world. In Management and Service Science, 2009. MASS'09. International Conference on (pp. 1-5). IEEE.

Wu, P., & Low, S. P. (2010). Project management and green buildings: lessons from the rating systems. Journal of Professional Issues in Engineering Education and Practice, 136(2), 64-70.

https://www.bca.gov.sg/greenmark/others/gm_resi_v4.1.pd

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