RCx Training and Registration Scheme

NOTICE: The website (https://retro.hkgbc.org.hk) will be temporarily suspended starting from 11 April 2025 until further notice for security upgrades and revamping. During the suspension, the ongoing processes such as training enrolment, registration application, and registration maintenance will be managed via email (rcx@hkgbc.org.hk) or other means. We apologise for any inconvenience that may cause. Thank you for your kind understanding.

Retro-commissioning (RCx) is one of the key initiatives stated in the Energy Saving Plan for Hong Kong's Built Environment 2015~2025+ published by the HKSAR Government for the promotion of energy saving in existing buildings. To encourage the implementation of RCx in the building industry, the Hong Kong Green Building Council (HKGBC) launched the RCx Training and Registration Scheme (the Scheme) in 2019 with support from the Electrical and Mechanical Services Department (EMSD) and other professional institutions, namely the Association of Energy Engineers (AEE) Hong Kong Chapter, the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) Hong Kong Chapter, the Building Services Operation and Maintenance Executives Society (BSOMES), the Chartered Institution of Building Services Engineers (CIBSE) Hong Kong Region, the Energy Institute (EI) Hong Kong Branch, the Hong Kong Association of Energy Engineers (HKAEE), and the Hong Kong Institution of Engineers (HKIE) – Building Services Division.

The Scheme aims to provide comprehensive and systematic training to build up the capacity of industry practitioners for the implementation of RCx. The candidate who fulfils the requirements can register as an RCx Practitioner, RCx Professional, or RCx Services Provider. By supporting the industry's transition to knowledge-based energy management and taking proactive steps, we can work collectively to achieve the carbon neutrality target by 2050.

"RCx is a cost effective and systematic process consisting of periodical checking of an existing building's performance to identify operational improvements that can save energy and in-turn lower energy bills and improve the indoor environment."
– Technical Guidelines on RCx (EMSD)