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Architectural Services Department - ArchSD Sustainability Report 2015

Resources Utilisation and Conservation / In-house Green Management

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Sub-sections in Resources Utilisation and Conservation

[ Sustainable Building Design ] [ Greening and Landscaping ] [ In-house Green Management ]

In-house Green Management

It is our goal to lead the industry by example through integrating green features into government buildings and facilities and adopting green practices where applicable. In addition to striving for excellence in building design, we have implemented a number of green initiatives to improve environmental performance in our workplace.

Energy Efficiency

ArchSD has certified to ISO 14001 Environmental Management System, ISO 9001 Quality Management System and OHSAS 18001 Occupational, Health and Safety Management System. In 2014, we have made a further step to enhance our energy performance through implementing an ISO 50001 certified Energy Management System (EnMS) for our APB Centre. By establishing the EnMS, we are able to improve our energy performance sustainably in a more systematic approach. In view of the benefit of implementing EnMS, we are currently studying the feasibility of adopting ISO 50001 for the whole department.


Presentation of ISO 50001 EnMS Certificate for APB Centre

In 2014, we completed a number of initiatives focusing on energy conservation and operations improvement. For instance, we have re-arranged lighting by zoning that reduced using 200 lamps for 7 hours per working day, and dimmed 600 lamps resulting in a saving of 18,928 kWh per annum. We were granted “Class of Excellence” of Energywi$e Label from Hong Kong Awards for Environmental Excellence (HKAEE) to recognise our energy saving achievement.

Presentation of Energywi$e Label of HKAEE
Certificate of “Class of Excellence” Energywi$e Label

Green Housekeeping

Various green housekeeping initiatives were implemented in ArchSD’s offices, such as closely monitoring on our computers’ switching on/off status, adopting LED task light to offset the lighting tubes, conducting de-lamping exercises and encouraging staff to turn off office lighting during lunch time or when unoccupied. We have implemented the rewiring works for re-arranging the lighting zone at 31/F and will implement on six other office floors in QGO and will also install LED light tube during the ceiling replacement works at 33/F. All above initiatives can reduce the electricity consumption during our daily office operation.

Carbon Footprint Management

As part of the government's initiatives to promote Green Government Building, existing government buildings with construction floor area of more than 10,000 m2 were encouraged to conduct carbon audit to track their carbon emissions. We fully support the government's call and therefore have engaged a third party to carry out carbon audit to gauge our carbon footprint and identify room for continuous improvement annually.

The carbon footprints of Queensway Government Office (QGO) and APB Centre over the past three years are as follows.

Carbon Emissions in the Queensway Government Office


  FY2011-12 FY2012-13 FY2013-14
Direct Emissions (Tonnes of CO2-e) 28.66 24.05 14.90
Energy Indirect Emissions (Tonnes of CO2-e) [1] 2,372.86 2,385.64 2,277.59
Other Indirect Emissions (Tonnes of CO2-e) [2] 142.94 119.25 39.02
Total (Tonnes of CO2-e) [2] 2,544.46 2,528.94 2,331.51
[1] Territory-wide default emission factor was used for the calculation of emissions.
[2] The figures in FY 2011-12, FY 2012-13 & FY 2013-14 are calculated by using the actual paper consumption (A4&A3) and waste paper collected for recycling.

We recorded a decreasing trend in carbon emissions for three consecutive years in QGO. Compared to the carbon auditing result for FY 2011-12 and FY2012-13, we successfully achieved 8.4% and 7.8% reduction in QGO respectively in FY 2013-14. The reduction in carbon emissions was mainly due to the decrease in electricity consumption and increase in waste paper recycling.

Carbon Emissions in APB Centre


  2012 2013 2014
Direct Emissions (Tonnes of CO2-e) 325.14 732.33 886.29
Energy Indirect Emissions (Tonnes of CO2-e) [3] 1,833.11 1,785.41 1,756.58
Other Indirect Emissions (Tonnes of CO2-e) 13.93 42.04 8.68
Total (Tonnes of CO2-e) 2,172.17 2,559.77 2,651.55
[3] Territory-wide default emission factor was used for the calculation of emissions.

In 2014, the overall carbon emissions of APB Centre increased by 3.6% as compared with the emissions in 2013. It was mainly due to refrigerant leakage under direct emissions. We will step up our monitoring and explore other possible measures to prevent leakage of refrigerant. Nevertheless, a significant decrease of 79% in other indirect emissions was recorded due to staff contribution to paper reduction and waste paper recycling in 2014.

Indoor Air Quality Management and Emissions Control

It is important to provide good indoor air quality (IAQ) in workplace to protect the health of our staff. We therefore follow the guidelines published by Environmental Protection Department to maintain our IAQ. To benchmark our IAQ level, we have participated in the IAQ Certification Scheme and achieved the "Good Class" IAQ Objective.

Apart from IAQ, we have taken measures to mitigate air pollution. For instance, we have introduced electric vehicles since early 2013 to encourage commute with low road-side emissions. In addition, ozone depleting substances are completely prohibited in the air-conditioning and fire-fighting systems in our office.


Presentation of IAQ Certificate

Water Management

We continue to monitor fresh water and flushing water consumption at APB Centre and QGO. We have also installed water saving devices including sensor taps, dual flush cisterns and devices with water efficiency labels under Water Efficiency Labelling Scheme in APB Centre. To make water conservation becoming a general staff practice, we have incorporated water saving guidelines into the Department's General Circular "Measures of Green Housekeeping".

Materials and Waste Reduction

In line with government’s initiatives in waste reduction, we have placed collection facilities for a wide range of recyclables including waste paper, aluminium cans, plastic bottles, used CDs and DVDs, used rechargeable cells, and used printer toner cartridges in our office. In 2014, we successfully reduced A3 paper consumption by over 16% and received the “Class of Excellence” Wastewi$e Label of HKAEE to recognise our waste reduction effort. In addition, we have worked proactively with our IT equipment suppliers to reuse and recycle computers in our office.

Presentation of Wastewi$e Label of HKAEE
Certificate of “Class of Excellence” Wastewi$e Label

Nurturing Green Culture

With full support from top management, we have established a team of Green Wardens (previously known as energy warden) with representatives from each division or section since 2006. Currently, we have 75 Green Wardens helping increase staff awareness of green office practices and identify opportunities for continual improvement. To thank for their dedication and effort, an appreciation letter would be presented to Green Wardens with outstanding performance every year to recognise their contribution.


Green Wardens Meeting

To equip our staff with necessary environmental knowledge, we encourage staff members at different levels to participate in appropriate training courses and obtain professional qualification. As at July 2014, 222 staff members of ArchSD have attained the BEAM Pro qualification.

Case Study

Renovation Works of 1/F Main Block, APB Centre

The new ArchSD office is located at 1/F of Main Block, APB Centre, Hung Hom. It is the first government office in Hong Kong achieved Platinum Rating under BEAM Plus Interiors Accreditation. The office has been transformed into a green workplace, to demonstrate the best practice in achieving low carbon, healthy and modern indoor environment.

Sustainable and sensible solutions incorporating the leading practices and latest trend of technology were implemented in this project. Sustainable design was envisioned through an innovative radiant cooling system, energy efficient lighting design, sustainable materials selection, excellent indoor environmental quality, etc.

The project has successfully demonstrated the best practice of a sustainable office renovation through a holistic approach on sustainable design, green construction, environmentally friendly operation and maintenance.

Innovative radiant cooling system by using radiant cooling panels
Dimmable indirect LED lighting to save energy
Raised floor with recycled content
Sustainable materials such as bamboo used as wall covering
Green wall along main corridor to enhance indoor environmental quality
Green roof to reduce heat gain


Real time monitoring panel to display the energy consumption


APB Centre is the first government office in Hong Kong achieved Platinum Rating under BEAM Plus Interiors Accreditation


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