Desalinated water is one of Singapore's sources of water supply, meeting about 10% of the country's water needs. By 2060, PUB aims to expand our desalination capacity by almost 10 times to meet 30% of our long-term water needs. We have been investing in R&D to improve the energy efficiency of the desalination process. One project using electrochemical desalting aims to reduce energy usage to less than half of current membrane-based desalination methods. PUB is also experimenting with biomimicry, by studying natural desalination systems such as mangrove plants and marine fishes. This technology has the potential to reduce the required energy to less than a fifth of current methods.