Singapore to Have its Largest Rooftop Solar Panel Facility by 2025

Changi Airport in Singapore is set to have the country's largest single-site rooftop solar panel system by early 2025. The airport's operator, Changi Airport Group (CAG), has appointed Keppel to design, build, own, and operate the solar photovoltaic (PV) system for 25 years. The system will be built on the rooftop areas of the terminal buildings, auxiliary structures, airfield and cargo buildings. It will have a combined generation capacity of 43 megawatt peaks (MWp), with 38MWp installed on rooftops and the remaining 5MWp installed at a 40,000 sq m turf area within the airfield outside of aircraft operational areas.

This will be the first time such a solar PV system has been installed in an airfield. The two sites combined are expected to generate sufficient solar energy to power more than 10,000 four-room HDB (Housing and Development Board) flats yearly, reducing carbon emissions by about 20,000 tonnes annually, or about 10 percent of its consumption in 2019.

Additionally, CAG has appointed SolarGY to transform the airport maintenance and storage center into a greener facility by installing a 640kWp rooftop solar PV system, which will cut the facility’s emissions by around 50 percent. CAG and Keppel have said that deploying solar PV systems in the airport "involves a set of unique challenges" compared to conventional installation at commercial, industrial, or residential sites.