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SUSTAINABILITY & ENVIRONMENT
per annum — equivalent to 18,638MWh and 13,811 tonnes of carbon
dioxide per annum.
Indira Gandhi International Airport received its award in recog-
nition of the fact the airport was the first in the Asia-Pacific region
to achieve carbon neutral status under the ACI’s Airport Carbon
Accreditation scheme, as well as achieving ISO 50001:2011 accred-
itation for its energy management system. The airport’s use of a
heating, ventilation and air conditioning (HVAC) system has resulted
in a 12 percent reduction in energy consumption.
Hong Kong International Airport has a wide-ranging energy
management programme that has improved energy efficiency
across the airport despite the annual throughput increasing each
year. Since 2010, the airport has completed more than 400 carbon
reduction initiatives, including the installation of over 100,000 LED
lights, improved cooling systems, electric vehicles and charging
facilities, waste separation, a food rescue programme and food
waste recycling. In 2015 alone, it achieved a 25.6 percent
reduction in carbon intensity per workload unit compared
with 2008. By 2020, the airport has pledged to reduce
this by 10 percent.
The airport’s LED replacement programme alone has
saved around 18.2 million KW/hr of electricity annually
and reduced CO2 emissions by 11,500 tonnes, according
to the airport. The airport ’s lights account for around 10 percent of
the total energy consumption at HKIA.
Some 120 shops, catering outlets, offices and cleaning contractors
participate in the airport’s waste reduction programme, while Green
Ambassadors are located around the airport to help its business
partners and passengers go green in their daily operations.
In the category for smaller airports in the region, Darwin Inter-
national Airport was recognised for its solar project, which has
resulted in what is believed to be the largest airside PV solar facility
in the world. Darwin’s A$13 million (US$10 million) 4MW PV solar
array system was switched on in 2016 and has allowed the airport
to source 25 percent of its power from the sun, including up to 100
percent of the airport’s peak energy demand in the middle of the
day. The solar farm comprises 15,000 solar panels over six hectares
and produces the equivalent electricity of 1,000 households.
Adelaide Airport was also recognised for its solar PV system,
which is located at the top of the multi-storey car park, and gen-
erates 1.73MWh per year or around 10 percent of the airport ’s total
Amman’s Queen Alia International Airport, meanwhile, was award-
ed for its two-year project to replace halogen lights with LEDs on the
runway. On completion of the project at the end of 2016, the airport
became only the second in the region to have a LED-lit runway.
Airports across the region are also active in the ACI’s Airport
Carbon Accreditation programme, which is a voluntary global pro-
gramme aimed at reducing airports’ CO2 emissions. The programme
was first launched in Europe in June 2009, but was extended to the
Asia-Pacific region in November 2011, African airports in June 2013
and North American airports in September 2014. The programme is
administered by consultancy WSP Parsons Brinckerhoff and over-
seen by an independent advisory board including representatives
from the United Nations Framework Convention for Climate Change,
the International Civil Aviation Organisation and the United Nations
Environmental Programme. The programme rates airports at four
different levels — mapping, reduction, optimisation and neutrality
— covering all stages of carbon management.
Mapping involves an airport determining emissions sources within
the airport boundaries, calculating emissions and compiling a carbon
footprint report. At the reduction stage, airports must provide evidence
of effective carbon reduction procedures. Optimisation involves
third-party engagement in carbon footprint reduction, while neutrality
involves offsetting remaining emissions to achieve neutral operations.
Worldwide around 190 airports are certificated at one of the four
levels of airport carbon accreditation. The ACI notes that these
airports combined had a passenger throughput of 2.5 billion pas-
sengers a year last year — or 38 percent of global air passenger
traffic. Just over 30 airports worldwide have achieved carbon neutral
status, five in Asia-Pacific.
“An impressive 2.5 billion air passengers now travel through airports
certified at one of the four levels of Airport Carbon Accreditations — a
testament to how much the programme has helped mobilise airport
operators towards addressing their carbon footprints,” says Angela
Gittens, director general, ACI World. “Airport Carbon Accreditation is
enabling a multi-speed effort now involving 189 airports across the
world and it’s inspiring to see the level of innovation and diversity with
which airports are contributing to the fight against climate change,”
Gittens adds. ACI notes that these efforts include better insulation
and energy efficiency; switching to green energy sources; investing
in hybrid, electric or gas-powered service vehicles; encouraging
employees, passengers and visitors to use public transport; working
with airlines and air traffic management providers to reduce runway
taxiing times and implement green landing processes.
Since the programme was launched in Asia-Pacific in late 2011, it
has experienced significant growth, with 38 airports in the region
now certified and five achieving carbon neutrality: India’s Chhatra-
pati Shivaji International Airport, Indira Gandhi International Airport,
Kempegowda (Bangalore) International Airport, Rajiv Gandhi Hyder-
abad International Airport and Australia’s Sunshine Coast Airport.
◀ The Jewel at Changi Airport in Singapore will be a forest of green with a 131-foot waterfall.
An impressive 2.5 billion air passengers now
travel through airports certified at one of the four
levels of Airport Carbon Accreditations...
ANGELA GITTENS, ACI WORLD
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