GreenA was the ESD Consultant for the Changi Air Base Hangar and helped the project attain the Green Mark Platinum (Positive Energy) award.
As part of the Singapore Armed Forces’ push for the environment, they have unveiled its first net-positive energy building – a new 8 storey hangar that features solar panels and natural ventilation.
The hanger can generate 1,255 MWh of electricity each year – enough to power 273 four-room Housing Board flats. It produces 30% more energy than it consumes and the excess energy is being used for other parts of the base.
Efficient and natural lighting
Apart from using energy-efficient lighting, the doors of the hangar utilizes a fabric door to allow natural light in.
The hangar features a green roof with carpet grass that insulates the building against heat and doubles up as a recreation area. The moist soil under the grass acts as a layer against heat, reducing need for air-conditioning.
Water Savings and Efficiency
Rainwater harvesting is also implemented. The water collected is used for general washing, flushing of toilets, and the irrigation
of the green roof. Together with the installation of water efficient fittings, MINDEF estimates that the building will save an equivalent of water consumption of 28 four-room flats each year.
MINDEF’s Sustainability plan moving forward
Beyond all these efforts, MINDEF will also replace its 400 administrative vehicles with hybrid models by 2023, reducing carbon emissions by up to two-thirds per vehicle. Eventually, MINDEF will be using electric vehicles once Singapore’s charging infrastructure is built up.
Beyond Singapore, MINDEF is also working its counterparts in Australia to incorporate environment sustainable design into its overseas facilities. This include solar powered lighting and building materials with high recycled content.
“In the grand global scheme of changes necessary to mitigate climate change, our total reduction of carbon dioxide emissions might be considered insignificant, but all agencies and countries must start on this road to recovery,” Mr Teo added.