Eighty airports across India are operating on 100% green energy. Airports in Delhi, Mumbai, Hyderabad, and Bengaluru have achieved Level 4+ and higher Airports Council International (ACI) accreditation and are carbon-neutral.

Minister of State for Civil Aviation Murlidhar Mohol told the Rajya Sabha that airport operators, including the Airports Authority of India (AAI), have installed onsite and offsite solar power projects to generate energy. Some airports also procure green energy through the open access mechanism.

Other initiatives by airport operators include adopting green building standards, converting conventional vehicles to electric vehicles, and installing energy-efficient air conditioning, lighting, and baggage handling systems.

The minister stated that implementing the Flexible Use of Airspace initiative has led to cumulative savings of approximately ₹8.6 billion (~$102.3 million) for all reporting airlines and has reduced CO2 emissions by over 188,538 tons since August 1, 2020.

He also said the ministry has organized knowledge-sharing sessions to standardize the carbon accounting and reporting framework of Indian airports and to create awareness of climate change mitigation.

The ministry has advised airport operators, developers of upcoming greenfield airports, and state governments to prepare a roadmap towards achieving net-zero carbon emissions by adopting renewable energy.

Recently, Tata Power signed a 25-year power purchase agreement with Noida International Airport to supply solar and wind power from onsite and offsite projects totaling nearly 24 MW. Tata Power will supply 10.8 MW of wind power to the airport, and develop, operate, and maintain a 13 MW onsite captive solar project with essential electrical infrastructure and smart energy infrastructure for 25 years.

In July, AAI floated a tender for the annual comprehensive maintenance, operation, and monitoring of a 2 MW rooftop solar power project at NSCBI Airport, Kolkata, for 2024-2027.

AAI also invited bids for facility management and comprehensive maintenance of a 1.5 MW grid-connected rooftop solar power project at the Integrated Cargo Complex, Chennai airport, for two years.