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Review of Performance on Green Policy
CAD's green policy is energy conservation, paper conservation, recycle, proper disposal of environmentally hazardous waste and provision of awareness training for staff.
Energy Conservation
Conserving Electricity by Energy Saving Initiatives
Buildings Managed by CAD
In buildings and premises managed by CAD, such as the Air Traffic Control Complex (ATCX), Air Traffic Control Tower (ATCT) and Back-up Air Traffic Control Complex (BATCX), we have explored various initiatives to save energy on our air-conditioning and lighting systems.
Energy Saving on Air-conditioning system
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We have installed light reflective shades in the Centralized Fault Reporting Centre at the ATCX and the Precision Runway Monitor and Microwave Equipment Room of the BATCX to lower the room temperature. |
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We are exploring with the Electrical and Mechanical Services Department (EMSD) the feasibility and cost-effectiveness to implement the following energy management opportunities (EMOs) to save energy cost on the air-conditioning of ATCX, ATCT and BATCX: -
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Injecting more outdoor cool air into the buildings during winter period
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Reducing maintenance time and providing anti-scaling system for water-cooled chiller system |
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Providing control system to switch off fan coil units at non-operational areas
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Providing thermal storage of chilled water at night time for use during day time |
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Energy Saving on Lighting System
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We have replaced electrical "Exit" signs at two of our equipment rooms at the South Runway with self-luminous signs that do not require power. As self-luminous signs may give out small amount of radioactive emissions, we will install the signs in unmanned sites only.
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We are exploring with EMSD the feasibility of permanently dismantling the floodlights at the rooftop of the ATCX and switching off half of the floodlights underneath the ATCT.
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We are exploring with EMSD the feasibility and cost-effectiveness of installing occupancy sensors at non-operation areas to automatically switch off lighting systems after those areas have been vacated for 5 minutes.
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CAD Offices Managed by Other Organizations
We would regularly convey our concerns about exploring energy saving initiatives to the building managers of other CAD offices. For example, we have given the building management of Queensway Government Offices our full support on the proposed new energy saving initiatives such as controlling indoor temperature at a reasonable level and shortening the operation hours of air conditioning chiller plant by the Government Property Agency.
Targets for 2002 and 2003
After implementing various energy conservation measures, we managed to reduce the average daily electricity consumption in the ATCX in 2002 by 3.4% comparing to the year of 2001 (Figure 10).
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