One of Portland's sister cities is Ashkelon, Israel. It happens to be the home of the world's largest desalination plant. In March of 2006 it was voted "Desalination Plant of the Year" in the Global Water Awards.
In October of 2006, which was a little more than a year after it started its first productions, it delivered its first 100 million m3 of water. It produces arund 13% of Israel's domestic consumer demand. It does this at a very low price for desalinated water.