[What is the regulatory definition of major retrofitting Works? ]

What does "major retrofitting works" include? Since the full implementation of the Building Energy Efficiency Ordinance on September 21, 2012, there are 13 types of central building services installation owners of major buildings and the person responsible for any building services installation serving individual units or common areas, including the owners. , tenants or occupiers, etc., when "major renovation works" are carried out, a "registered energy assessor" must verify within two months that the efficiency of the replaced or added building equipment meets the minimum requirements of the "Building Energy Efficiency Code" Regarding energy efficiency standards and design requirements, Hong Kong Energy Audit (HKEA) provides you with a comprehensive explanation of the definition of major renovation works to avoid prosecution.

Building services installation

Before understanding "major renovation works", you must first understand the following four types of building services installations specified in the Building Energy Efficiency Code, including

1. Lighting device

• Lighting power density
• Lighting controls (e.g. switchgear)
• automatic lighting control

2. Electrical equipment

• Motor efficiency
• Distribution losses
• Total power factor
• total harmonic distortion rate
• Measurement and monitoring facilities

3. Air conditioning unit

• Air conditioning equipment (chiller) and heat pump efficiency coefficient
• Air distribution system fan power
• Friction losses in water piping systems
• heat insulation
• Energy Efficiency System Control
• Energy metering

4. Lifts and escalators

• Electric power
• Total power factor
• total harmonic distortion rate
• Measurement and monitoring facilities
• Lift decorative load
• Turn off the ventilation and air-conditioning system when the lift is idle
• Lift feedback braking
• Lift cabin lighting control
• Escalator automatic deceleration

The definition of major renovation works is the area involved or the main components of central building services installations:

 

Project area:

Add or replace building services installations specified in the Building Energy Efficiency Code and meet the following conditions:

Calculated based on one unit or one common area, the total floor area covered by the project (i.e. project area) is not less than 500 square meters

or

If the works are carried out in stages or in different places within a unit or a common area as a series of works, and the total floor area (i.e. project area) covered by these works is not less than 500 square meters in total within 12 months.

Main components of building services installations

The addition or replacement of major components of a central building services installation, if they involve the following component definitions, are considered major renovation works.

• A complete circuit rated for 400 amps or more.
• A single package air conditioner, heat pump or chiller with a cooling or heating rating of 350 kilowatts or above.
• A motor drive and a mechanical drive for an elevator, escalator or passenger conveyor.

 

Undertake major retrofitting works and energy audit process

The owner of the central building services installation and the person responsible for any building services installation serving individual units or common areas, including owners, tenants or occupiers, etc., must hire a "Registered Energy Assessor" (REA) within two months. To conduct an energy audit, if the replaced or newly added building services installations comply with the minimum energy efficiency standards and design requirements of the Building Energy Efficiency Code, the responsible person needs to obtain a compliance form from (REA). At the same time, the "Registered Energy Assessor" (REA) must submit a copy of the "Compliance Form" (specified form EE4) to the Electrical and Mechanical Services Department and the property management company for record purposes. The form does not need to be signed by the Electrical and Mechanical Services Department. If the building does not have a property management company, the "Registered Energy Assessor" must send a copy to the building owner. The Building Energy Efficiency Ordinance has now been fully implemented, and the list of "Compliance Forms" will be uploaded to the Electrical and Mechanical Services Department website for public inspection.

Therefore, in addition to the energy audit once every ten years, if the building involves major retrofitting works, remember to complete the energy audit within two months.  Hong Kong Energy Audit provide professional energy audit reports and services, professional engineers and registered energy efficiency The assessor will give you the most professional energy efficiency optimization advice on your case. You are welcome to contact our customer service staff and consultants at any time to inquire about energy audit service quotations or energy efficiency optimization project suggestions.