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Sustainability Report 2011
Environmental Performance Reducing Our Carbon Footprint & Conserving Resources
The building also holds its Indoor Air Quality (IAQ) Good Class Certification from
the Environmental Protection Department and IAQwi$e Good Class Label from the
Environmental Campaign Committee. Improving facilities in this area as well, we are
completing work on the upgrade of a primary air unit.
On an operational level, we continue to reduce our consumption of electricity on a
number of fronts. The large-scale introduction of LED lighting in our customer centres,
which began in 2010 and resulted in an amazing two-thirds saving in electricity costs,
continued and at the end of 2011, 18 out of 20 centres had made the switch. The
electricity savings at these 18 centres is estimated to be 75,000 kWh.
The ongoing replacement of T8 lighting with T5 lighting, and the increased use of LED
lighting saved some 89,900 kWh of electricity in 2011 at our Towngas headquarters,
lowering CO
2
emissions by some 63 tonnes. Extending these activities, a pilot test is
currently being carried out on the use of induction lighting in our warehouses and we
are also exploring measures to reduce energy consumption in lifts. Plans are also in
hand to install LED lighting in carparks and staircases, up-grade rooftop chiller systems
into more environmentally friendly water-cooled models, and we are also implementing
energy saving measures in our IT database centre in Hong Kong.
Energy Consumption
2011
2010
2009
2008
Electricity
Consumption
at headquarters
(kWh)
6,840,479 6,945,154 7,177,509 7,509,318
Vehicle Fleet
(Number)
485
487
492
495
Petrol (Litres)
653,864
686,669
710,692
729,109
Diesel (Litres)
313,810
281,945
264,246
277,244