Hong Kong Green Shop Guide - page 143

5.8.2 Energy evaluation for existing buildings
Starting from 21 September 2012, the owners of newly constructed and existing
commercial buildings and the commercial portion of a composite building are
required every 10 years to engage a registered energy assessor (REA) to carry
out an energy audit for the central building services installations in accordance
with the latest edition of the Energy Audit Code:
• Air-conditioning installations,
• Electrical installations,
• Lighting installations, and
• Lift and escalator installations.
An energy audit is an effective energy management tool by which a building
manager examines the energy account of energy consuming equipment or
systems, checks how the energy is used and for areas of inefficiency, and
proposes strategies for improvement.
Figure 119 Code of Practice for
Building Energy Audit
(Source: Electrical and Mechanical
Services Department)
TECHNICAL NOTE
Codes and technical guidelines
The Building Energy Code 2012, associated with the mandatory Buildings Energy Efficiency Ordinance
(Chapter 610) enacted on 21 September 2012, sets out the technical guidance and details for a prescriptive
and performance-based approach towards compliance with the ordinance. Energy simulations with
comparisons between reference and designed buildings are required when using the performance-based
approach. More details are discussed in Section 2.3.3 – Hong Kong ordinances and guidelines and
Appendix C10 Buildings Energy Efficiency Ordinance.
Read more at:
1. Building Energy Efficiency Ordinance
The Government of Hong Kong Special Administrative Region. Electrical and Mechanical Services
Department. (2012). Building Energy Efficiency Ordinance. Retrieved 8 April 2013, from
http://www.beeo.emsd.gov.hk/
2. Technical guidelines on energy audit code
The Government of Hong Kong Special Administrative Region. Electrical and Mechanical Services
Department. (2012). EMSD guidelines on energy audit. Retrieved 31 July 2013, from
http://www.beeo.emsd.gov.hk/en/pee/TG-EAC.pdf
5.8.3 Professional help
It is important to engage professionals for detailed consultation on the implementation of technologies of
energy simulation and evaluation at shopping malls and shops. The following is a list of references for obtaining
professional help:
• Registered professional engineers (RPE) in the building services discipline – Appendix A (4)
• Registered energy assessors (REA) – Appendix A (6)
• BEAM Professionals (BEAM Pro) – Appendix A (7)
5
Energy efficient building systems for shopping malls and shop spaces
5.8
Technologies of energy simulation and evaluation
Hong Kong Green Building Council 141