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Changi Airport to install new rooftop solar PV system


A new solar photovoltaic (PV) system is to be installed on the rooftop areas of Singapore Changi’s terminal buildings, terminal auxiliary structures, airfield and cargo buildings.

The new sustainability friendly addition will be designed, built, owned and operated by Keppel Ltd (Keppel) for 25 years when it is completed in early 2025.

When up and running, the solar PV system will have a combined generation capacity of 43 Mega-Watt peak (MWp), of which 38 MWp will be installed on rooftops, making this Singapore’s largest single-site rooftop solar PV system.

The remaining 5 MWp of solar generation capacity will come from a solar PV system installed at a 40,000sqm turf area within Changi Airport’s airfield outside of aircraft operational areas.

This will be the first time a solar PV system is installed in Changi’s airfield – marking the first step towards maximising solar potential at Changi Airport beyond conventional rooftop spaces.

Combined, the rooftop and airfield solar PV systems are expected to generate sufficient solar energy equal to what is needed to power more than 10,000 four-room HDB flats yearly.

With the system, CAG will reduce its carbon emissions by approximately 20,000 tonnes each year, or about 10% of its consumption in 2019.

Koh Ming Sue, CAG’s executive vice president for engineering and development, said: “Notwithstanding Singapore’s limitations with renewable energy sources, CAG strives to make Changi a more sustainable aviation hub through reducing carbon footprint from all practical fronts.

“We have been addressing the airport’s energy demands at its core, which includes upgrading our frontline airport building and systems with best-in-class energy efficient models and expanding our support for the airport community to switch to cleaner energy vehicles.

“Partnering Keppel in this project, which is Changi Airport’s largest deployment of solar PV system to date and our first foray into solar PV systems in the airfield, we have taken a significant step forward in our decarbonisation journey.”

He adds: “In parallel, at the back end, CAG has also appointed another partner, SolarGy Pte Ltd to transform our airport maintenance and storage centre into a greener facility by installing a 640kWp rooftop solar PV system which will cut the facility’s emissions by around 50%.

“As technology continues to advance, we look forward to working with innovative partners to further unlock solar potential and other sustainable opportunities at Changi Airport.”


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