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CPD Events
CPD Events

CPD Events
Energy Performance Improvement on Existing Buildings - Cases Sharing on Retro-commissioning

Co-organised by:

Event Details:


4 December 2020 (Friday)


 6:00pm - 7:30pm


This CPD event will be conducted in the form of webinar via Zoom.
(An event reminder with Zoom Webinar ID will be provided at around a week before the event.)


6:00pm - 6:40pm Knowledge Sharing: System and Energy Performance Optimization through Retro-commissioning
Ir Colin CHUNG, HKAEE Director
6:40pm - 7:20pm

Knowledge Sharing: Pragmatic Application of RCx with Case Studies – A Guide for Speed to Energy Savings
Ir Gary HUI, Executive Director, Energenz

7:20pm - 7:30pm Q&A Session


Free of Charge


Cantonese supplemented with English presentation materials

CPD hour:

1.5 CPD hours will be automatically uploaded to attendees' RCx Practitioner/ RCx Professional Individual Accounts


HKGBC Secretariat (3994 8818) / rcx@hkgbc.org.hk

Remarks: This topic is suitable for RCx Practitioner (Level 2) and RCx Professional.

Click HERE to download flyer

Abstract and Biography:

Knowledge Sharing: System and Energy Performance Optimization through Retro-commissioning

It is well known that buildings in Hong Kong consumes 90% of the electricity generated in the city while 66% of the total electricity are consumed by the commercial buildings. For those commercial buildings, more than half are equipped with central air-conditioning system consists of both water-side and air-side equipment which will provide great opportunities for fine tuning the systems and will provide significant improvement of the efficiency of energy utilization. Examples relating to chiller staging and sequencing, temperature setting for air-side system, flow adjustment and pump operation for waterside system will be discussed and shared with ultimate goal in energy savings without compromise of indoor air quality and comfort level.

Speaker: Ir Colin CHUNG, HKAEE Director

Ir Chung has many years of professional engineering experience in the design and management of industrial, commercial, infrastructure and transportation related projects. His particular expertise includes HVAC systems, energy management, cogeneration and trigeneration power system and district cooling system.

Colin is the Managing Director of the Sustainable Development & Environment Group, China Region of WSP. He is the fellow member of HKAEE, HKIE and many other local and international professional institutions. Ir Chung was the Past President of HKAEE, Past Chairman of Energy Institute – HK Branch and Gas and Energy division of HKIE. He is also the former Director and past Chairman of Green Labelling Committee of HKGBC. Currently, he is the director of HKAEE and Hon Secretary of Association of Energy Engineers – HK Chapter and BEAM Society. Ir Chung is also a REA and RCx Professional.

Knowledge Sharing: Pragmatic Application of RCx with Case Studies – A Guide for Speed to Energy Savings

Whilst retro-comissioning is a proven means to optimize energy efficiency performance of the buildings and lower energy consumption, its real-life experience and application case sharing are scarce in the industry hence this might create a barrier for any organisation that might wish to adopt RCx. In this knowledge sharing session, Gary will give insight from both a project procurement/execution and technical perspective how different approaches to RCx can be pragmatically adopted to achieve energy savings. Gary will use real-life example and case study which you should easily adopt or procure in various context in order to achieve speed to savings.

Speaker: Ir Gary HUI, Executive Director, Energenz

Gary is seasoned engineer specialising in energy and sustainability of the built environment, ranging from strategy, planning, design, procurement, operation, and policy.

Gary spearheads design and operation of buildings in a most versatile and effective manner, connecting strategy, planning, design, construction, commissioning and operation into a holistic cycle. His integrative approach harmonises multi-disciplinary engagement, ensuring all elements of a building resolved in an optimal manner to impact both the engineering and commercial value of a built asset.

Gary is passionate about using data from buildings to optimise performance of building assets, he is a recognized thought leader in retro-commissioning and big data-driven building commissioning and operation, he is a speaker at the workshops at Hong Kong EMSD, Hong Kong Green Building Council, ASHRAE Hong Kong and Macau, the conferences of International Facilities Management Association, Building Services Operation and Maintenance Executives Society, Hong Kong Hotel Association, Hong Kong University… etc.

Gary has worked on energy related project of exceeding an annual footprint of 1bn kWh and has helped clients save hundreds of millions of dollars spent on energy and operation optimization. His understanding in business operation, management and engineering allows him to have a wide spectrum of consultancy work.

Supporting Organisations:

Important Notes:

  • Registration is processed on a first-come-first-serve basis.
  • An event reminder with Zoom Webinar ID will be provided at around a week before the event.
  • In case of insufficient enrolment, organisers have the right to postpone or cancel the event. Affected participants will be notified and refunded.
  • A CPD certificate will be distributed to participants upon completion of event.
  • Attendance of late comers who arrive more than 20 minutes after event start time or participants who leave early without seeking prior consent of the organiser will not be recorded.
  • The event will be cancelled in the event of a typhoon signal no 8 or above, or a black rainstorm signal is hoisted 3 hours before the event commences.

*If you are not a registered RCx Practitioner/ RCx Professional, please create an account for enroling the CPD event.

- This CPD event is FULL -

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