The Tuas Desalination Plant is the world’s most space efficient in terms of the amount of water it can purify for its size, said national water agency PUB.

At 3.5ha, it is the smallest of the country’s desalination facilities, yet it produces 30 million gallons of drinking water a day, the same amount as SingSpring Desalination Plant, which is almost double its size.

It took two years to build and opened officially yesterday. And now that it is running, 30 per cent of Singapore’s water supply can be met through desalination.