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  • Briefing Session 2024 for Registered Energy Assessor (REA)

    The Briefing Sessions will be held on 6 February 2024 and 7 March 2024, covering a variety of topics including the recap on major requirement of the Ordinance, e-submission methodology, common irregularities in statutory submission, the update arrangement of the COCR Renewal and the introduction to the proposed legislative amendments to the Ordinance. (post date: 6.2.2024)

  • Consultation on proposed amendments to the Buildings Energy Efficiency Ordinance (Cap. 610)

    Please visit the following website :
    Consultation (post date: 15.11.2023)

  • [Event Highlights Announcement] Prize Presentation Ceremony for Building Energy Efficiency Online Quiz Competition successfully concluded
    Public Engagement in Energy Saving and
    Green Buildings for Striving Towards Carbon Neutrality
    The Prize Presentation Ceremony for the Building Energy Efficiency Online Quiz Competition (The ceremony) was successfully held on March 10, 2023. In addition to presenting the awards of the Online Quiz Competition, experts from universities were invited to share their ideas in energy saving and green buildings for the participants. A survey was conducted in the ceremony to collect the views of participants about the way forward of Buildings Energy Efficiency Ordinance. A live quiz challenge followed the above activities and concluded the ceremony. Our future pillars – young people and all members of the public are encouraged to continuously reduce carbon emissions from their daily life for striving towards Carbon Neutrality in Hong Kong before 2050. For more detail, please click here

    For enquiries, please contact the Event Secretariat at 2967 8855 or e-mail to beeopublicity@emsd.gov.hk. (post date: 30.3.2023)
  • [Results Announcement] Building Energy Efficiency Online Quiz Competition
    Ten-Year Achievements in Energy Saving in Green Buildings
    Full Public Engagement for Striving Towards Carbon Neutrality
    The Building Energy Efficiency Online Quiz Competition have received very positive responses. Assessment was completed. Please click here to view the list of winners. Winner will be notified individually by email. Stay tuned with The Prize Presentation Ceremony for the Building Energy Efficiency Online Quiz Competition on 10 March 2023! (post date: 24.2.2023)
  • Last Call! Building Energy Efficiency Online Quiz Competition
    Ten-Year Achievements in Energy Saving in Green Buildings
    Full Public Engagement for Striving Towards Carbon Neutrality
    Closing soon on 14 February 2023 @11:59p.m.! Don’t miss the chance to participate in the Online Quiz and stand a chance to win great prizes! To participate or learn more about the event details, please click here. Everyone is welcome to participate!

    We will also hold The Prize Presentation Ceremony for the Building Energy Efficiency Online Quiz Competition on 10 March 2023! We invited Ir Professor Michael Leung and Ir Professor Vivien Lu to be the speakers. They will share how to achieve carbon neutrality through innovative technology and building energy efficiency. To learn more about the forum speakers and topics, please click here.

    Join now to the online quiz and keep the focus on our social media platforms (Witty Bear, E&M Young Ambassador) soon. Stay tuned and hope to see you in coming event!

    For enquiries, please contact the Event Secretariat at 2967 8855 or e-mail to beeopublicity@emsd.gov.hk. (post date: 2.2.2023)
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  • Welcome to join! Building Energy Efficiency Online Quiz Competition
    Ten-Year Achievements in Energy Saving in Green Buildings
    Full Public Engagement for Striving Towards Carbon Neutrality
    The Building Energy Efficiency Online Quiz Competition (Online Quiz) is held from today until 14 February 2023 and participants stand a chance to win great prizes! If you would like to participate the Online Quiz or learn more about the event details, please click here. Everyone is welcome to participate!

    We will also hold The Prize Presentation Ceremony for the Building Energy Efficiency Online Quiz Competition in mid-March 2023! Relevant details will be announced on our website (mibec_beeo_NewsandEvents.html) and social media platforms (Witty Bear, E&M Young Ambassador) soon. Stay tuned!

    Combating climate change is a long-term task that requires perseverance and unremitting efforts. We call on the community to join hands with the Government to build a greener Hong Kong and strive to achieve the goal of carbon neutrality by 2050.

    For enquiries, please contact the Event Secretariat at 2967 8855 or e-mail to beeopublicity@emsd.gov.hk. (post date: 13.1.2023)
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  • Building Information Modelling Software Add-in Prototype is now available

    A building information modelling software add-in prototype to assist the Building Energy Code (BEC) compliance checking of lighting installation is now available for study purpose. For details, please refer to Useful link on this website (post date: 12.12.2022)

  • Coming Events (Q4 2022)

    Following the post on 21 September 2022, we are pleased to launch the 1st batch of promotional activities and is now available at "Events" on this website. (under the column of "Publicity"). (post date: 18.10.2022)

  • Revision 09/22 of Form EE5 is now available

    Revision 09/22 of Form EE5 is now available at "Forms" on this website and takes effect on 1.10.2022. For details, please refer to the BEEO Technical Circular No. 2/2022. (post date: 26.9.2022)

  • Ten-Year Achievements in Energy Saving in Green Buildings
     Increasing Public Engagement on Carbon Neutrality
    On 21 September 2022, the Buildings Energy Efficiency Ordinance (BEEO) completed its first ten-year steadfast and successful mission of combating climate change. Our slogan “Ten-year Achievements in Energy Saving in Green Buildings · Increasing Public Engagement on Carbon Neutrality” not only captures Hong Kong's notable and significant achievements in promoting building energy efficiency and reducing carbon emissions over the past decade, but also manifests the full and active participation of our community in pursuing low-carbon transformation for advancing towards the goal of carbon neutrality together.

    As this year marks the historic moment of the ten-year implementation of the BEEO, the Electrical and Mechanical Services Department has prepared a series of promotional activities including technical talks, seminars, forums, online quiz, etc. to arouse public awareness on energy saving and green buildings and seek for full engagement of the whole community in in-depth low-carbon transformation. Combating climate change is a long-term task, which requires unwavering efforts. We call on various sectors of the community to join hands with the Government to build a greener Hong Kong together in a bid to strive towards the goal of carbon neutrality.

    Details of the activities will be available in our website (https://www.emsd.gov.hk/beeo/) and social media platforms (Witty Bear, E&M Young Ambassador) soon. Stay tuned!  (post date: 21.9.2022)
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  • Technical Guidelines on Building Energy Code 2021, Technical Guidelines on Energy Audit Code 2021 and corresponding technical forms have been issued

    Further to the previous issuance of the BEC 2021 & EAC 2021, the Technical Guidelines on BEC 2021 (TG-BEC 2021), Technical Guidelines on EAC 2021 (TG-EAC 2021) are now available at “Codes & Technical Guidelines” on this website. The corresponding technical forms are also now available at “Forms” on this website. For details please refer to the BEEO Technical Circular No. 1/2022. (post date: 29.7.2022)

  • New Edition of the Code of Practice for Energy Efficiency of Building Services Installation and the Code of Practice for Building Energy Audit (2021 Edition)

    The new edition of the Code of Practice for Energy Efficiency of Building Services Installation, 2021 Edition (the BEC 2021) and the Code of Practice for Building Energy Audit, 2021 Edition (the EAC 2021) have been published on 31 December 2021. The Codes are now available at “Codes & Technical Guidelines” on this website.

    The new edition of BEC 2021 will be fully implemented on 1 July 2022 and 1 October 2022 for Stage One Declaration (new building projects) and Form of Compliance (major retrofitting works) after a grace period of 6-month and 9-month respectively. The new edition of EAC 2021 will be fully implemented on 1 October 2022 for energy audit after a grace period of 9-month. Please refer to the BEEO Technical Circular No. 1/2021 for details. (post date: 31.12.2021)

    [With the long-term goal on striving towards carbon neutrality before 2050 in Hong Kong, encouragement with more professional engineers to register as Registered Energy Assessor (REA) to support the full implementation of BEEO is essential. Should you possess relevant professional qualifications in the corresponding disciplines under Buildings Energy Efficiency (Registered Energy Assessors) Regulation (Cap.610B) or equivalent qualification recognized by HKIE and with sufficient practical experience relating to energy efficiency in buildings, you are encouraged to make application for registration as the REA. Should you possess knowledge, qualification, education, experience and training relating to energy efficiency in buildings as comparable to the above-mentioned requirements, your application would also be considered as a whole for registration as the REA. (Details refer to “How to Apply” on this website)]

  • Technical Guidelines on Energy Audit Code 2018 has been issued

    Further to the previous issuance of the EAC 2018, the Technical Guidelines on EAC 2018 (TG-EAC 2018) is now available at “Codes & Technical Guidelines” on this website. For details please refer to the BEEO Technical Circular No. 3/2019. (post date: 30.7.2019)

  • Technical Guidelines on Building Energy Code 2018 has been issued

    Further to the previous issuance of the BEC2018, the Technical Guidelines on BEC 2018 (TG-BEC 2018) is now available at “Codes & Technical Guidelines” on this website. For details please refer to the BEEO Technical Circular No. 2/2019. (post date: 28.6.2019)

  • New technical forms and EE-CH(V.2) are now available

    Further to the previous issuance of the BEC 2018 and EAC 2018 Editions, the corresponding technical forms are now available at “Forms” on this website. The updated Form EE-CH(V.2) has also been uploaded on the same webpage. For details, please refer to the BEEO Technical Circular No. 1/2019. (post date: 31.05.2019)

  • The Building Energy Code (BEC) 2018 Edition and the Energy Audit Code (EAC) 2018 Edition have been issued

    The Director today (November 16) gazetted the BEC 2018 Edition and the EAC 2018 Edition. The Codes are now available at “Codes & Technical Guidelines” on this website.

    The BEC 2018 Edition will take effect on 16 May 2019 and 16 August 2019 for Stage One Declaration (new building projects) and Form of Compliance (major retrofitting works) respectively. The EAC 2018 Edition will take effect on 16 August 2019. Please refer to the BEEO Technical Circular No. 1/2018 for details. (post date: 16.11.2018)

  • Addendum No. TG-BEC01 to Technical Guidelines on Building Energy Code 2015 (TG-BEC 2015] has been issued

    Further to the previous issuance of the TG-BEC 2015, the Addendum No. TG-BEC01 has been issued, taking immediate effect and is now available at “Codes & Technical Guidelines” on this website.(post date: 29.3.2018)

  • Addendum No. TG-BEC02 to Technical Guidelines on Building Energy Code 2012 (Rev.1) ((TG-BEC 2012) (Rev.1)) has been issued

    Further to the previous issuance of the TG-BEC 2012 (Rev.1), the Addendum No. TG-BEC02 has been issued, taking immediate effect and is now available at “Codes & Technical Guidelines” on this website.(post date: 29.3.2018)

  • Technical Form EE-CH (V.1) is now available

    Further to the previous issuance of the “Checklist for COCR Stage 2 / FOC Submission, EE-CH”, the latest version, namely the Form EE-CH (V.1), taking immediate effect is now available at "Forms" on this website.(post date: 9.3.2018)

  • Briefing Session 2018 for Registered Energy Assessor (REA)

    The Briefing Sessions were held on 5 and 6 March 2018, covering a variety of topics including the latest information on the implementation of the Ordinance, common non-compliance items in statutory submission, and the introduction to Retro-commissioning. The PowerPoint presentations are now available at the "Events" on this website.(post date: 9.3.2018)

  • New technical forms Checklist for COCR Stage Two / FOC Submission (EE-CH) and MBEC Enquiry Form for Project Specific Issue EE-EN are now available

    The “Checklist for COCR Stage 2 / FOC Submission, EE-CH” and “MBEC Enquiry Form for Project Specific Issue, EE-EN”, which serve to assist Registered Energy Assessors (REAs) in preparation of the COCR Stage Two/FOC submission and raise enquiry for project specific issue are now available at “Forms” on this website.

    EE-CH takes effect on 1 Feb 2018. All COCR Stage Two/FOC cases submitted to this Office on or after the effective date must be accomplished with this checklist. While EE-EN takes immediate effect. For details please refer to the BEEO Technical Circular No. 1/2017. (post date: 12.1.2018)

  • Explanatory notes for buildings not covered by BEEO or Non-CBSI conducting energy audit (Explanatory Notes) has been issued

    The Energy Audit Code (EAC) and the corresponding Technical Guidelines (TG) have been well developed and applied in prescribed buildings governed by the BEEO for years. Energy Audit would in fact help owners to understand the energy performance of their buildings and consider the implementation of energy management opportunities. To facilitate the widely adoption of Energy Audit, an Explanatory Notes is thus prepared to elaborate suggested modification or adjustment for application of EAC and TG for those non-CBSIs and non-prescribed buildings. (post date: 28.4.2017)

  • 2016-17 Briefing Sessions for Registered Energy Assessor (REA)

    The Briefing Sessions were held on 21 December 2016, 4 and 11 January 2017, covering a variety of topics including the full implementation of the Buildings Energy Efficiency Ordinance, the latest development of the Technical Guidelines on the Codes, common non-compliance item in statutory submission, and the introduction to Retro-commissioning. The PowerPoint presentation is now available at the Events on this website. (post date: 13.1.2017)

  • Probity Requirement for Responsible Person, Developer, Building Owners and Registered Energy Assessors

    Applicants are reminded that it is an offence under the Prevention of Bribery Ordinance (Chapter 201 of the Laws of Hong Kong) to offer any advantages (e.g. money, gift, etc.) to an employee of the EMSD as an inducement to or reward for facilitating or expediting the processing of applications, and in connection with the compliance with the application/ registration approval terms and conditions as appreciate.

    The REAs have the obligation to remind developers / building owners/ responsible person of such probity requirement. (post date: 20.12.2016)

  • Frequently asked questions are now updated

    Frequently asked questions about the Buildings Energy Efficiency Ordinance have been updated. Please visit the Frequently Asked Questions page on the website. (post date: 20.12.2016)

  • 2016-17 Briefing Sessions for Registered Energy Assessor (REA)

    The annual briefing sessions on BEEO for Registered Energy Assessor (REA) are scheduled to be held on 21 December 2016, 4 and 11 January 2017 at EMSD Headquarter Building (3 Kai Shing Street, Kowloon) from 9:30 to 11:30 a.m. All sessions have identical contents, covering a variety of topics including the full implementation of the Ordinance and the latest development of the Codes and Technical Guidelines.

    For details and registration, please visit the online application page. (post date: 25.11.2016)

  • Technical Guidelines on Energy Audit Code 2015 and Technical Form EE-PB 2015 have been issued

    Further to the previous issuance of the EAC 2015, the Technical Guidelines on EAC 2015 (TG-EAC 2015) is now available at “Codes & Technical Guidelines” on this website. In addition, technical form no. EE-PB 2015 (for BEC 2015) has also been uploaded at “Form” on this website. For details please refer to the BEEO Technical Circular No. 3/2016. (post date: 12.08.2016)

  • Technical Guidelines on Building Energy Code 2015 has been issued

    Further to the previous issuance of the BEC2015, the Technical Guidelines on BEC 2015 (TG-BEC 2015) is now available at “Codes & Technical Guidelines ” on this website. For details please refer to the BEEO Technical Circular No. 2/2016. (post date: 30.6.2016)

  • Online Application for Registration as Registered Energy Assessor (REA)

    The online platform for application as Registered Energy Assessor (REA) is now available on this website. This online application platform can assist applicant to complete the application form (Specified Form EA1) and provide e-submission to Energy Efficiency Office. To access the online application platform, please click online application platform.

  • New technical forms and revision 06/16 of Form EE-SU are now available

    Further to the previous issuance of the BEC 2015 and EAC 2015 Editions, the corresponding technical forms are now available at “Forms” on this website. Revision 06/16 of Form EE-SU (Supplementary Information) has also been uploaded on the same webpage. For details, please refer to the BEEO Technical Circular No. 1/2016. (post date: 10.06.2016)

  • Disclosure of Energy Utilization Index (EUI) for buildings completed with Energy Audit

    For buildings completed with Energy Audit, the Energy Utilization Index (EUI) of respective building declared by Registered Energy Assessor (REA) should be stated in the Energy Audit Form (Specified Form EE5). The EUI information is now available in the “List of Buildings issued with Energy Audit Form”.

  • The Building Energy Code (BEC) 2015 Edition and the Energy Audit Code (EAC) 2015 Edition have been issued

    The Director today (December 11) gazetted the BEC 2015 Edition and the EAC 2015 Edition. The Codes are now available at “Codes & Technical Guidelines” on this website.

    The BEC 2015 Edition will take effect on 11 June 2016 and 11 September 2016 for Stage One Declaration (new building projects) and Form of Compliance (major retrofitting works) respectively. The EAC 2015 Edition will take effect on 11 June 2016. Please refer to the BEEO Technical Circular No. 2/2015 for details. (post date: 11.12.2015)

  • 2015 Technical Forum on Control and Practice of Cooling Towers and Buildings Energy Efficiency

    2015 Technical Forum on Control and Practice of Cooling Towers and Buildings Energy Efficiency was held on 4 December 2015, covering a variety of topics including Full Implementation of the Buildings Energy Efficiency Ordinance and Latest Development of the Codes. The PowerPoint presentation is now available at the Events on this website. (post date: 11.12.2015)

  • Prosecution cases against belated energy audit convicted by the court

    There are currently five prosecution cases against the belated energy audit. The trial of the first prosecution case against belated energy audit was conducted on 4 November 2014. The Incorporated Owners (IO) of the relevant building were convicted of contravening the relevant requirements of the Buildings Energy Efficiency Ordinance and fined $4,850 in total. Another 4 cases were heard on 3 February 2015. The building owners of 3 out of the 4 cases pleaded guilty and were fined from $2,000 to $2,500. For the remaining case which pleaded not guilty, the trial was held on 20 March 2015 at Kwun Tong Magistrates’ Court. The IO of the relevant building had been convicted and was sentenced to a fine of $21,000. The Electrical and Mechanical Services Department is continuing to strictly enforce the law and is also progressively taking prosecution actions against those building owners who still delay carrying out the first energy audit despite repeated advice. (post date: 31.03.2015)

  • 2014 Technical Forum on Control and Practice of Cooling Towers and Buildings Energy Efficiency

    2014 Technical Forum on Control and Practice of Cooling Towers and Buildings Energy Efficiency was held on 12 December 2014, covering a variety of topics including Full Implementation of the Buildings Energy Efficiency Ordinance and Latest Development of the Codes. The PowerPoint presentation is now available at the Events on this website. (post date: 19.12.2014)

  • Revision 11/14 of Form EE-SU (Supplementary Information) is now available

    Revision 11/14 of Form EE-SU (Supplementary Information) is now available at “Forms” on this website. For details, please refer to the BEEO Technical Circular No. 2/2014. (post date: 28.11.2014)

  • The first prosecution case against belated energy audit was convicted by the court

    The trial of the Electrical and Mechanical Services Department’s first prosecution case against belated energy audit was conducted at the Eastern Magistrates' Courts on 4 November 2014. The Incorporated Owners of the relevant building were convicted of contravening the relevant requirements of the Buildings Energy Efficiency Ordinance and fined $4,850 in total. The Electrical and Mechanical Services Department is continuing to strictly enforce the law and is also progressively taking prosecution actions against those building owners who still delay carrying out the first energy audit despite repeated advice. (post date: 18.11.2014)
  • The deadline of energy audit for the 3rd batch is approaching

    The deadline of energy audit for the 3rd batch (occupation permits issued between 1970 and 1977) of commercial buildings and commercial portions of composite buildings (e.g. shopping centres under residential storeys) is 20 September 2015. Please refer to the pamphlet for energy audit and the energy audit FAQs for the detailed requirements. (post date: 6.10.2014)
  • The lighting power density standards in the Building Energy Code (BEC) 2012 Edition have been upgraded

    The lighting power density standards in the Building Energy Code (BEC) 2012 Edition have been upgraded. The revised standards have taken effect since 28 August 2014 for Stage One Declaration (new building projects) and will also take effect on 28 November 2014 for Form of Compliance (major retrofitting works). Please refer to the BEEO Technical Circular No. 1/2014 , Addendum No. BEC01 to BEC 2012 Edition and Addendum No. TG-BEC01 to Technical Guidelines on BEC 2012 Edition for details. (post date: 6.10.2014)
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