ENERGY ASPECTS (EA)

Question 1

EA 1 - CERTIFIED SUSTAINABLE BUILDINGS

Credits: 6

EXCLUSIONS
None

OBJECTIVE
Encourage developments to adopt holistic green building practices to guide the design, construction, and retrofitting processes.

Answer 1

The following table outlines attainable credit points based on the percentage (%) of either CFA or GFA of a development to be certified under BEAM Plus New Buildings (NB) or Existing Buildings (EB).

Percentage of either CFA or GFA of a development to be certified Silver rating or above
Equal or greater than 10%, but less than 20% 1
Equal or greater than 20%, but less than 30% 2
Equal or greater than 30%, but less than 40% 3
Equal or greater than 40%, but less than 50% 4
Equal or greater than 50%, but less than 60% 5
Equal or greater than 60% 6

CFA: Construction Floor Area
GFA: Gross Floor Area

Question 2

EA 2 - PASSIVE DESIGN

Credits: 4

EXCLUSIONS
None

OBJECTIVE
Encourage developments to adopt passive design to guide the design and construction process.

Answer 2

1 credit point is awarded where the following requirements are fulfilled:
• The combined façade area of south and north elevations contributes to 66% of the total façade area of the building(s);
• The normal of the south and north facing façades must be within 22.5° of the geographical north / south axis; and
- At least 25% of the number of buildings within the Site fulfil the above requirements.

OR
2 credit points are awarded where the following requirements are fulfilled:
• The combined façade area of south and north elevations contributes to 66% of the total façade area of the building(s);
• The normal of the south and north facing façades must be within 22.5° of the geographical north / south axis; and
• At least 50% of the number of buildings within the Site fulfil the above requirements.

OR

2 credit points are awarded where the optimisation of site layout by building disposition / orientation to reduce solar radiation on the proposed building blocks within the Site is demonstrated.
_____________________

1 credit point is awarded where the building separation requirements stipulated in Appendix B of Buildings Department
- PNAP APP-152 Sustainable Building Design Guidelines are complied with.

OR

2 credit points are awarded where the optimisation of site layout by disposition and separation of building blocks to enhance wind environment and no pedestrian area will be subject to wind velocity caused by amplification due to the Project.

Question 3

EA 3 - ENERGY EFFICIENT INFRASTRUCTURE

Credits: 4
Bonus Credits: 2

EXCLUSIONS
Projects of pure residential use; and For EA 3a, public sector projects where the district energy system connection is mandated by land lease conditions or engineering conditions.

OBJECTIVE
Encourage energy efficient infrastructure including district cooling and / or energy systems that reduces CO2 emissions and the environmental impact.

Answer 3

2 credit points are awarded where the Site is connected to a district cooling or energy system, whether there is an existing system or there will be a planned one.
_____________________

1 credit point is awarded if the Applicant can demonstrate that a target annual average COP of 4.7 at full utilisation can be achieved through a continuous monitoring of the plant efficiency.
_____________________

1 BONUS credit point is awarded where the plant average annual efficiency (including cooling towers and primary pumps) is equal to or greater than the COP of 4.7.
_____________________

1 credit point is awarded where a walkable service tunnel with adequate maintenance access for the district system is provided.
_____________________

1 BONUS credit point is awarded where other utilities services are combined with the district system piping route and a walkable service tunnel is provided.

Question 4

EA 4 - RENEWABLE ENERGY

Credits: 3

EXCLUSIONS
None

OBJECTIVE
Encourage wider application of district renewable energy sources in neighbourhood development.

Answer 4

1 credit point is awarded under the following conditions:
• The project is connected to a district or shared renewable energy system, whether it is an existing system or a newly planned one; and

• If it can be demonstrated that the system can supply at least 0.25% of the annual estimated total energy demand within the Site.

OR

2 credit points are awarded under the following conditions:

• The project is connected to a district or shared renewable energy system, whether it is an existing system or a newly planned one, and
• If it can be demonstrated that the system can supply at least 0.5% of the annual estimated total energy demand within the Site.
_____________________

1 credit point is awarded where 100% of the annual estimated external lighting energy demand within the Site, excluding the façade lighting, is offset by renewable energy.

Question 5

ENERGY ASPECTS (EA)

Answer 5

Total number of EA credit points: 17 + 2B

This section encourages design of developments and systems, and provisions that enhance energy efficiency and energy conservation. Credits are assessed based on two levels - building level and infrastructure level.

Energy Aspects include:
• Sustainable buildings and passive design; and
• Energy efficient infrastructure