GMR-owned Delhi International Airport Limited (DIAL) is moving rapidly towards its zero emissions objective and is now expected to reach the target by 2025, five years ahead of the initial estimate. GMR has reset the deadline based on its success in reducing carbon emissions by a remarkable 90 per cent in FY 24 through a multi-pronged sustainability approach, including renewable energy use, electric vehicles, energy conservation, and green building practices.
DIAL sources additional renewable energy through open access agreements, achieving 100 percent renewable energy usage. This eliminates an estimated 200,000 tonnes of CO2 emissions per year.
Another focus area was minimising aircraft emissions. Operationalising the Eastern Cross Taxi Way last year reduced aeroplane taxiing distances, leading to an estimated annual reduction of 55,000 tonnes of CO2 emissions. Additionally, electric ground vehicles and TaxiBots, which tow aeroplanes during taxiing, further minimise fuel consumption.
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DIAL actively participates in the Airport Carbon Accreditation programme, aligning with its goal of carbon neutrality by 2050. This programme sets the global standard for carbon management in the airport industry.
"DIAL's move towards net zero sets a positive example for other transportation infrastructure and the city as a whole," said Jagannarayan Padmanabhan, a senior director at CRISIL. "This can inspire faster action from other airports and serve as a model for wider adoption."
Water conservation is also a priority. DIAL has installed over 650 rainwater harvesting systems and is developing a massive rainwater storage facility. A state-of-the-art wastewater treatment plant ensures complete water reuse within the airport, making it water-positive.
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Recognising the potential of Sustainable Aviation Fuel (SAF) for cleaner operations, DIAL has begun a study in collaboration with relevant authorities to explore its feasibility.
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