Changi Airport Embarks on Singapore’s Largest Rooftop Solar Project with Keppel Ltd.

Changi Airport and Keppel Ltd. have commenced the construction of Singapore's largest rooftop solar PV system, aiming for completion in 2025 to power sustainable operations and reduce carbon emissions.

Changi Airport Group (CAG) has initiated a groundbreaking project in collaboration with Keppel Ltd., marking the commencement of construction for a vast solar photovoltaic (PV) system across the rooftops of Changi Airport’s terminals and a designated area within its airfield. This ambitious endeavor, set for completion in 2025, represents Singapore’s largest single-site rooftop solar project and Changi Airport’s first venture into airfield solar PV systems.

With a total generation capacity of 43 Mega-Watt peak (MWp), the project will significantly contribute to renewable energy production in Singapore. Of this, 38 MWp will be installed atop the terminal buildings, while the remaining 5 MWp will harness solar power from a 40,000 square-meter turf area strategically located within the airfield's non-operational zones. This innovative approach not only maximizes the airport’s solar potential but also underscores CAG’s commitment to pioneering sustainable solutions within the aviation sector.

The solar PV systems are projected to generate enough energy to power over 10,000 four-room HDB flats annually, facilitating a substantial reduction in carbon emissions by approximately 20,000 tonnes each year. This initiative is a key component of Changi Airport’s broader strategy to enhance its sustainability profile and reduce its environmental footprint, aligning with Singapore’s national goals for green energy adoption and carbon neutrality.

Addressing the unique challenges of installing solar PV systems in an airport setting, CAG and Keppel have implemented rigorous simulation tests to eliminate potential glare and glint effects that could affect air traffic controllers and pilots. Furthermore, the project ensures that the solar panels will not interfere with essential communications, navigation, and surveillance (CNS) systems, adhering to stringent aviation safety and security standards.

Keppel’s General Manager, Lim Yong Wei, expressed enthusiasm for the partnership, highlighting the project’s significance in propelling Changi Airport towards a more sustainable future. The solar PV system will be integrated with Keppel’s Operations Nerve Centre (ONC) for enhanced monitoring, fault detection, and maintenance, exemplifying a smart and efficient approach to renewable energy management.

As Changi Airport takes a bold step forward in its decarbonization journey with this landmark solarisation project, it sets a new benchmark for airports globally in the adoption of clean energy solutions and sustainability practices.