Architectural Services Department - ArchSD Sustainability Report 2007

Statistics / Environmental Performance Indicators

[Traditional Chinese Version] [Simplified Chinese Version] [Graphical Version] [Contact Us] [Feedback] [Sitemap]

Sub-sections in Statistics
[Environmental Performance Indicators] [Social Performance Indicators] [Economic Performance Indicators]

Environmental Performance Indicators

Resources Usage - Energy
  Units 2006 2005 2004 2003 2002
Electricity consumed (QGO and APB Centre) [1] kWh/m2 265.2 277.5 277.5 285.6 291.3
CO2 equivalent to electricity consumption (QGO and APB Centre) [2] Tonnes 4,267 4,467 4,467 4,596 4,654
Building with OTTV less than 23W/m2 % & no. of total no. of projects 100% & 7 of 7 100% & 11 of 11 100% & 10 of 10 100% & 14 of 14 97% & 29 of 30
Building with OTTV less than 18W/m2 % & no. of total no. of projects 85.7% & 6 of 7 63.6% & 7 of 11 70% & 7 of 10 36% & 5 of 14 63% & 19 of 30
Energy saved due to energy efficient installations GWh 39 84 119 108 85
Equivalent monetary savings HK$ million 39 84 119 108 85
Avoided CO2 emissions in ,000 Tonnes 27.3 58.8 83.3 75.6 59.5
[1] Offices in QGO and APB Centre represent 88% of total ArchSD office space
[2] CO2 conversion factor, 0.7 tonnes/MWh was used. Previous data were adjusted accordingly.

Resource Usage - Fuel
  Units 2006 2005 2004 2003 2002
Fuel consumption by ArchSD's pool cars Litre 19,639 24,169 Not Available Not Available Not Available
CO2 equivalent to fuel consumption by ArchSD pool cars [3] Metric tonnes 46.8 57.6 Not Available Not Available Not Available
[3] CO2 emission is calculated using mobile combustion CO2 emissions calculation tool version 1.3 developed by GHG Protocol Initiative. Assuming only gasoline is consumed by ArchSD’s pool cars, CO2 emission = GJ energy (Gasoline used in litre x 0.0344 GJ/unit) x Emission Factor (69.250 kg CO2/GJ).

Resource Usage - Non-Ozone Depleting Substances
  Units 2006 2005 2004 2003 2002
Refrigerants installed No. of application 23 26 47 34 34
Fire extinguishing agents No. of application 4 11 8 9 6

Resource Usage - Office Materials
  Units 2006 2005 2004 2003 2002
A4 paper consumption Reams 21,765 21,182 23,700 25,238 26,610
A3 paper consumption Reams 1,241 1,378 1,417 1,822 2,005
Envelop consumption Number 70,812 77,119 65,818 63,324 83,644
Recyclable A4/A3 size paper Reams / % of total paper purchased 18,984 / 79.5% 12,622 / 64.2% 5,753 / 21.3% 700 / 2.8% 1,320 / 3.7%
Types of eco-friendly office consumables Types 13 13 18 17 17

Resource Usage - Timber & Water Use
  Units 2006 2005 2004 2003 2002
Timber saving Volume of Timber Saved in m3 (Ratio Normalised [4] by Contract Value) 284.69 (0.20) 1,382 (0.56) 1,461 (0.46) 1,566 (0.29) 2,718 (0.36)
Water saving No. of Water-saving Sanitary Appliances (Ratio Normalised by Contract Value) 1,473 (1.00) 2,831 (1.15) 3,312 (1.29) 3,760 (0.71) 2,400 (0.34)
[4] The normalised ratio is an indication of the extent ArchSD has improved in an area after taking into account the changes in contract value each year, so as to facilitate better comparisons over time. Such data in 2004 & 2005 are re-adjusted due to incorporation of data from all contract works, also including works for maintenance and improvement.

Waste Management
Construction & demolition materials Units 2006 2005 2004 2003 2002
C&D waste disposed of to landfills Tonnes 46,858 76,536 96,793 107,126 42,100
C&D materials disposed of to public fill areas Tonnes 206,209 585,447 651,057 616,664 835,515
Recyclable Waste Collected at APB Centre
Waste paper kg 2,475 4,570 6,859 5,600 5,950
Aluminium cans No. 220 254 546 1,248 Not Available
Plastic bottles No. 265 424 629 1,113 Not Available

Environmental Convictions of Contractors
  Units 2006 2005 2004 2003 2002
Convictions per 100,000 manhours ArchSD sites (HK sites) 0.140 (0.518) 0.231 (0.417) 0.515 (0.848) 0.307 (0.953) 1.432 (1.729)

Environmental Expenditure
  Units 2006 2005 2004 2003 2002
Resources devoted to environmental works Value ($ million) 639.45 664.1 675.3 480.0 542.9
Percentage of annual expenditure   7.1% 6.0% 5.2% 4.1% 5.2%

Home |  Introduction |  Director's Message |  Our Profile |  Our Value & Commitments |  Highlights |  Environmental Review |  Social Review |  Economic Review |  Statistics |  Case Studies |  Looking Forward |  GRI Content Index |  Verification Statement

[Traditional Chinese Version] [Simplified Chinese Version] [Graphical Version] [Contact Us] [Feedback] [Sitemap]

(c) 2007 All Rights Reserved